java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 18:50:11,749 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 18:50:11,750 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 18:50:11,763 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 18:50:11,763 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 18:50:11,765 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 18:50:11,766 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 18:50:11,768 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 18:50:11,771 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 18:50:11,771 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 18:50:11,772 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 18:50:11,773 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 18:50:11,774 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 18:50:11,775 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 18:50:11,780 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 18:50:11,781 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 18:50:11,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 18:50:11,793 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 18:50:11,795 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 18:50:11,800 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 18:50:11,803 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 18:50:11,805 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 18:50:11,807 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 18:50:11,807 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 18:50:11,807 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 18:50:11,810 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 18:50:11,811 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 18:50:11,812 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 18:50:11,813 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 18:50:11,814 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 18:50:11,814 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 18:50:11,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 18:50:11,815 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 18:50:11,815 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 18:50:11,819 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 18:50:11,819 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 18:50:11,820 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-23 18:50:11,850 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 18:50:11,850 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 18:50:11,854 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 18:50:11,855 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-23 18:50:11,855 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-23 18:50:11,856 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-23 18:50:11,856 INFO L133 SettingsManager]: * Use SBE=true [2018-10-23 18:50:11,856 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 18:50:11,856 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 18:50:11,856 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 18:50:11,857 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 18:50:11,857 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 18:50:11,857 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 18:50:11,857 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 18:50:11,857 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 18:50:11,859 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 18:50:11,859 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 18:50:11,859 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 18:50:11,860 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 18:50:11,860 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:50:11,860 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 18:50:11,860 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 18:50:11,860 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 18:50:11,861 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-23 18:50:11,861 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 18:50:11,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 18:50:11,861 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 18:50:11,862 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 18:50:11,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 18:50:11,938 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 18:50:11,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 18:50:11,943 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 18:50:11,943 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 18:50:11,944 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c [2018-10-23 18:50:11,993 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d0864f05/f06e96db23ea4bcda9069cccc51575c5/FLAG9b4465a61 [2018-10-23 18:50:12,715 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 18:50:12,716 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label14_true-unreach-call.c [2018-10-23 18:50:12,738 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d0864f05/f06e96db23ea4bcda9069cccc51575c5/FLAG9b4465a61 [2018-10-23 18:50:12,753 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/8d0864f05/f06e96db23ea4bcda9069cccc51575c5 [2018-10-23 18:50:12,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 18:50:12,764 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 18:50:12,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 18:50:12,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 18:50:12,769 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 18:50:12,770 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:50:12" (1/1) ... [2018-10-23 18:50:12,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52590c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:12, skipping insertion in model container [2018-10-23 18:50:12,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:50:12" (1/1) ... [2018-10-23 18:50:12,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 18:50:12,864 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 18:50:13,518 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:50:13,523 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 18:50:13,853 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 18:50:13,879 INFO L193 MainTranslator]: Completed translation [2018-10-23 18:50:13,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13 WrapperNode [2018-10-23 18:50:13,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 18:50:13,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 18:50:13,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 18:50:13,882 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 18:50:13,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:13,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:14,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 18:50:14,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 18:50:14,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 18:50:14,183 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 18:50:14,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:14,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:14,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:14,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:14,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:14,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:14,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... [2018-10-23 18:50:14,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 18:50:14,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 18:50:14,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 18:50:14,306 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 18:50:14,307 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 18:50:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-23 18:50:14,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 18:50:14,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 18:50:20,464 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 18:50:20,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:50:20 BoogieIcfgContainer [2018-10-23 18:50:20,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 18:50:20,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 18:50:20,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 18:50:20,470 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 18:50:20,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:50:12" (1/3) ... [2018-10-23 18:50:20,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0f7580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:50:20, skipping insertion in model container [2018-10-23 18:50:20,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:50:13" (2/3) ... [2018-10-23 18:50:20,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0f7580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:50:20, skipping insertion in model container [2018-10-23 18:50:20,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:50:20" (3/3) ... [2018-10-23 18:50:20,475 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label14_true-unreach-call.c [2018-10-23 18:50:20,484 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 18:50:20,495 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 18:50:20,514 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 18:50:20,553 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-23 18:50:20,554 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 18:50:20,554 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 18:50:20,554 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 18:50:20,555 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 18:50:20,555 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 18:50:20,555 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 18:50:20,555 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 18:50:20,555 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 18:50:20,583 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states. [2018-10-23 18:50:20,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-10-23 18:50:20,603 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:20,605 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:50:20,608 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:20,614 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:20,615 INFO L82 PathProgramCache]: Analyzing trace with hash -102357910, now seen corresponding path program 1 times [2018-10-23 18:50:20,617 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:20,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:20,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:20,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:20,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:21,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:50:21,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:21,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:50:21,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:50:21,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:50:21,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:21,598 INFO L87 Difference]: Start difference. First operand 303 states. Second operand 4 states. [2018-10-23 18:50:25,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:25,284 INFO L93 Difference]: Finished difference Result 1072 states and 1917 transitions. [2018-10-23 18:50:25,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:50:25,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 171 [2018-10-23 18:50:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:25,317 INFO L225 Difference]: With dead ends: 1072 [2018-10-23 18:50:25,317 INFO L226 Difference]: Without dead ends: 762 [2018-10-23 18:50:25,323 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2018-10-23 18:50:25,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 518. [2018-10-23 18:50:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 518 states. [2018-10-23 18:50:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 855 transitions. [2018-10-23 18:50:25,410 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 855 transitions. Word has length 171 [2018-10-23 18:50:25,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:25,412 INFO L481 AbstractCegarLoop]: Abstraction has 518 states and 855 transitions. [2018-10-23 18:50:25,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:50:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 855 transitions. [2018-10-23 18:50:25,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-23 18:50:25,418 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:25,418 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:50:25,419 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:25,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:25,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1343385639, now seen corresponding path program 1 times [2018-10-23 18:50:25,420 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:25,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:25,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:25,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:25,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:25,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:25,758 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:50:25,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:25,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:50:25,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:50:25,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:50:25,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:25,762 INFO L87 Difference]: Start difference. First operand 518 states and 855 transitions. Second operand 4 states. [2018-10-23 18:50:29,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:29,168 INFO L93 Difference]: Finished difference Result 1918 states and 3253 transitions. [2018-10-23 18:50:29,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:50:29,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 177 [2018-10-23 18:50:29,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:29,184 INFO L225 Difference]: With dead ends: 1918 [2018-10-23 18:50:29,185 INFO L226 Difference]: Without dead ends: 1402 [2018-10-23 18:50:29,189 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:29,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1402 states. [2018-10-23 18:50:29,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1402 to 933. [2018-10-23 18:50:29,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2018-10-23 18:50:29,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1472 transitions. [2018-10-23 18:50:29,245 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1472 transitions. Word has length 177 [2018-10-23 18:50:29,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:29,248 INFO L481 AbstractCegarLoop]: Abstraction has 933 states and 1472 transitions. [2018-10-23 18:50:29,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:50:29,248 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1472 transitions. [2018-10-23 18:50:29,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-10-23 18:50:29,261 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:29,261 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 18:50:29,261 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:29,262 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:29,262 INFO L82 PathProgramCache]: Analyzing trace with hash -567522293, now seen corresponding path program 1 times [2018-10-23 18:50:29,262 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:29,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:29,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:29,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:29,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:29,376 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:50:29,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:29,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:50:29,377 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:50:29,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:50:29,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:29,378 INFO L87 Difference]: Start difference. First operand 933 states and 1472 transitions. Second operand 3 states. [2018-10-23 18:50:31,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:31,870 INFO L93 Difference]: Finished difference Result 2699 states and 4315 transitions. [2018-10-23 18:50:31,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:50:31,871 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2018-10-23 18:50:31,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:31,882 INFO L225 Difference]: With dead ends: 2699 [2018-10-23 18:50:31,882 INFO L226 Difference]: Without dead ends: 1768 [2018-10-23 18:50:31,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:31,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-10-23 18:50:31,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1751. [2018-10-23 18:50:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1751 states. [2018-10-23 18:50:31,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1751 states to 1751 states and 2699 transitions. [2018-10-23 18:50:31,923 INFO L78 Accepts]: Start accepts. Automaton has 1751 states and 2699 transitions. Word has length 180 [2018-10-23 18:50:31,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:31,926 INFO L481 AbstractCegarLoop]: Abstraction has 1751 states and 2699 transitions. [2018-10-23 18:50:31,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:50:31,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1751 states and 2699 transitions. [2018-10-23 18:50:31,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-10-23 18:50:31,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:31,933 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2018-10-23 18:50:31,933 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:31,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:31,933 INFO L82 PathProgramCache]: Analyzing trace with hash -630849601, now seen corresponding path program 1 times [2018-10-23 18:50:31,933 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:31,934 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:31,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:31,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:31,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:31,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-23 18:50:32,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:32,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:50:32,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:50:32,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:50:32,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:32,033 INFO L87 Difference]: Start difference. First operand 1751 states and 2699 transitions. Second operand 3 states. [2018-10-23 18:50:33,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:33,301 INFO L93 Difference]: Finished difference Result 4329 states and 6639 transitions. [2018-10-23 18:50:33,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:50:33,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 188 [2018-10-23 18:50:33,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:33,316 INFO L225 Difference]: With dead ends: 4329 [2018-10-23 18:50:33,316 INFO L226 Difference]: Without dead ends: 2580 [2018-10-23 18:50:33,319 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2018-10-23 18:50:33,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2579. [2018-10-23 18:50:33,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2579 states. [2018-10-23 18:50:33,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2579 states to 2579 states and 3884 transitions. [2018-10-23 18:50:33,377 INFO L78 Accepts]: Start accepts. Automaton has 2579 states and 3884 transitions. Word has length 188 [2018-10-23 18:50:33,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:33,378 INFO L481 AbstractCegarLoop]: Abstraction has 2579 states and 3884 transitions. [2018-10-23 18:50:33,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:50:33,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2579 states and 3884 transitions. [2018-10-23 18:50:33,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-10-23 18:50:33,386 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:33,386 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 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] [2018-10-23 18:50:33,386 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:33,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:33,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1925347994, now seen corresponding path program 1 times [2018-10-23 18:50:33,387 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:33,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:33,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:33,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:33,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:33,596 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-10-23 18:50:33,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:33,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:50:33,597 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:50:33,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:50:33,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:33,598 INFO L87 Difference]: Start difference. First operand 2579 states and 3884 transitions. Second operand 3 states. [2018-10-23 18:50:34,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:34,092 INFO L93 Difference]: Finished difference Result 7713 states and 11623 transitions. [2018-10-23 18:50:34,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:50:34,099 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-10-23 18:50:34,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:34,124 INFO L225 Difference]: With dead ends: 7713 [2018-10-23 18:50:34,125 INFO L226 Difference]: Without dead ends: 5136 [2018-10-23 18:50:34,130 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:34,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2018-10-23 18:50:34,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 5133. [2018-10-23 18:50:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5133 states. [2018-10-23 18:50:34,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5133 states to 5133 states and 7720 transitions. [2018-10-23 18:50:34,241 INFO L78 Accepts]: Start accepts. Automaton has 5133 states and 7720 transitions. Word has length 194 [2018-10-23 18:50:34,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:34,242 INFO L481 AbstractCegarLoop]: Abstraction has 5133 states and 7720 transitions. [2018-10-23 18:50:34,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:50:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5133 states and 7720 transitions. [2018-10-23 18:50:34,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-23 18:50:34,253 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:34,254 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-10-23 18:50:34,254 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:34,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:34,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1582974829, now seen corresponding path program 1 times [2018-10-23 18:50:34,254 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:34,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:34,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:34,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:34,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:34,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-10-23 18:50:34,593 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:50:34,593 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:50:34,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:34,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:34,760 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:50:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-10-23 18:50:34,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:50:34,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2018-10-23 18:50:34,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:50:34,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:50:34,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:34,867 INFO L87 Difference]: Start difference. First operand 5133 states and 7720 transitions. Second operand 4 states. [2018-10-23 18:50:38,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:38,530 INFO L93 Difference]: Finished difference Result 20487 states and 30826 transitions. [2018-10-23 18:50:38,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:50:38,532 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 203 [2018-10-23 18:50:38,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:38,627 INFO L225 Difference]: With dead ends: 20487 [2018-10-23 18:50:38,628 INFO L226 Difference]: Without dead ends: 15356 [2018-10-23 18:50:38,643 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 203 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:38,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15356 states. [2018-10-23 18:50:38,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15356 to 10229. [2018-10-23 18:50:38,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10229 states. [2018-10-23 18:50:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10229 states to 10229 states and 15363 transitions. [2018-10-23 18:50:38,914 INFO L78 Accepts]: Start accepts. Automaton has 10229 states and 15363 transitions. Word has length 203 [2018-10-23 18:50:38,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:38,914 INFO L481 AbstractCegarLoop]: Abstraction has 10229 states and 15363 transitions. [2018-10-23 18:50:38,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:50:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand 10229 states and 15363 transitions. [2018-10-23 18:50:38,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-23 18:50:38,935 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:38,935 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:50:38,936 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:38,936 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:38,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1172652270, now seen corresponding path program 1 times [2018-10-23 18:50:38,936 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:38,936 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:38,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:38,938 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:38,938 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:39,440 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 7 [2018-10-23 18:50:39,488 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:50:39,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:39,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:50:39,490 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-23 18:50:39,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-23 18:50:39,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:50:39,490 INFO L87 Difference]: Start difference. First operand 10229 states and 15363 transitions. Second operand 5 states. [2018-10-23 18:50:42,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:42,028 INFO L93 Difference]: Finished difference Result 23029 states and 35010 transitions. [2018-10-23 18:50:42,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-23 18:50:42,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2018-10-23 18:50:42,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:42,068 INFO L225 Difference]: With dead ends: 23029 [2018-10-23 18:50:42,069 INFO L226 Difference]: Without dead ends: 12802 [2018-10-23 18:50:42,086 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-10-23 18:50:42,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12802 states. [2018-10-23 18:50:42,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12802 to 11045. [2018-10-23 18:50:42,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11045 states. [2018-10-23 18:50:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11045 states to 11045 states and 16559 transitions. [2018-10-23 18:50:42,429 INFO L78 Accepts]: Start accepts. Automaton has 11045 states and 16559 transitions. Word has length 211 [2018-10-23 18:50:42,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:42,430 INFO L481 AbstractCegarLoop]: Abstraction has 11045 states and 16559 transitions. [2018-10-23 18:50:42,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-23 18:50:42,430 INFO L276 IsEmpty]: Start isEmpty. Operand 11045 states and 16559 transitions. [2018-10-23 18:50:42,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-10-23 18:50:42,449 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:42,449 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:50:42,450 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:42,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:42,450 INFO L82 PathProgramCache]: Analyzing trace with hash 2121835886, now seen corresponding path program 1 times [2018-10-23 18:50:42,450 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:42,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:42,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:42,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:42,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-23 18:50:42,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:42,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:50:42,734 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:50:42,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:50:42,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:42,735 INFO L87 Difference]: Start difference. First operand 11045 states and 16559 transitions. Second operand 4 states. [2018-10-23 18:50:45,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:45,805 INFO L93 Difference]: Finished difference Result 41022 states and 61357 transitions. [2018-10-23 18:50:45,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:50:45,806 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 211 [2018-10-23 18:50:45,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:45,874 INFO L225 Difference]: With dead ends: 41022 [2018-10-23 18:50:45,874 INFO L226 Difference]: Without dead ends: 29979 [2018-10-23 18:50:45,894 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29979 states. [2018-10-23 18:50:46,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29979 to 20440. [2018-10-23 18:50:46,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-23 18:50:46,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 29051 transitions. [2018-10-23 18:50:46,275 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 29051 transitions. Word has length 211 [2018-10-23 18:50:46,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:46,275 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 29051 transitions. [2018-10-23 18:50:46,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:50:46,276 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 29051 transitions. [2018-10-23 18:50:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-23 18:50:46,305 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:46,305 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2018-10-23 18:50:46,306 INFO L424 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:46,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:46,306 INFO L82 PathProgramCache]: Analyzing trace with hash -946118317, now seen corresponding path program 1 times [2018-10-23 18:50:46,306 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:46,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:46,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:46,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:46,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:46,444 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-23 18:50:46,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:46,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:50:46,445 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:50:46,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:50:46,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:46,446 INFO L87 Difference]: Start difference. First operand 20440 states and 29051 transitions. Second operand 3 states. [2018-10-23 18:50:48,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:48,256 INFO L93 Difference]: Finished difference Result 40906 states and 58154 transitions. [2018-10-23 18:50:48,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:50:48,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-10-23 18:50:48,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:48,300 INFO L225 Difference]: With dead ends: 40906 [2018-10-23 18:50:48,301 INFO L226 Difference]: Without dead ends: 20468 [2018-10-23 18:50:48,327 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20468 states. [2018-10-23 18:50:48,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20468 to 20440. [2018-10-23 18:50:48,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20440 states. [2018-10-23 18:50:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20440 states to 20440 states and 27343 transitions. [2018-10-23 18:50:48,805 INFO L78 Accepts]: Start accepts. Automaton has 20440 states and 27343 transitions. Word has length 212 [2018-10-23 18:50:48,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:48,805 INFO L481 AbstractCegarLoop]: Abstraction has 20440 states and 27343 transitions. [2018-10-23 18:50:48,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:50:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 20440 states and 27343 transitions. [2018-10-23 18:50:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-10-23 18:50:48,834 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:48,835 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 3, 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] [2018-10-23 18:50:48,835 INFO L424 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:48,835 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:48,836 INFO L82 PathProgramCache]: Analyzing trace with hash 964240011, now seen corresponding path program 1 times [2018-10-23 18:50:48,836 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:48,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:48,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:48,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:48,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:48,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:48,979 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-10-23 18:50:48,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:48,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:50:48,980 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:50:48,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:50:48,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:48,980 INFO L87 Difference]: Start difference. First operand 20440 states and 27343 transitions. Second operand 3 states. [2018-10-23 18:50:50,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:50,479 INFO L93 Difference]: Finished difference Result 57404 states and 76442 transitions. [2018-10-23 18:50:50,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:50:50,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 219 [2018-10-23 18:50:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:50,536 INFO L225 Difference]: With dead ends: 57404 [2018-10-23 18:50:50,536 INFO L226 Difference]: Without dead ends: 36966 [2018-10-23 18:50:50,558 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:50,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36966 states. [2018-10-23 18:50:50,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36966 to 36958. [2018-10-23 18:50:50,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36958 states. [2018-10-23 18:50:51,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36958 states to 36958 states and 44611 transitions. [2018-10-23 18:50:51,027 INFO L78 Accepts]: Start accepts. Automaton has 36958 states and 44611 transitions. Word has length 219 [2018-10-23 18:50:51,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:51,028 INFO L481 AbstractCegarLoop]: Abstraction has 36958 states and 44611 transitions. [2018-10-23 18:50:51,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:50:51,028 INFO L276 IsEmpty]: Start isEmpty. Operand 36958 states and 44611 transitions. [2018-10-23 18:50:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-23 18:50:51,056 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:51,057 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:50:51,057 INFO L424 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:51,057 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:51,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1938525756, now seen corresponding path program 1 times [2018-10-23 18:50:51,057 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:51,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:51,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:51,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:51,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:51,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:51,352 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:50:51,353 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:51,353 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:50:51,354 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:50:51,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:50:51,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:51,354 INFO L87 Difference]: Start difference. First operand 36958 states and 44611 transitions. Second operand 4 states. [2018-10-23 18:50:53,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:53,451 INFO L93 Difference]: Finished difference Result 87182 states and 106671 transitions. [2018-10-23 18:50:53,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:50:53,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 227 [2018-10-23 18:50:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:53,859 INFO L225 Difference]: With dead ends: 87182 [2018-10-23 18:50:53,859 INFO L226 Difference]: Without dead ends: 50226 [2018-10-23 18:50:53,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:53,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50226 states. [2018-10-23 18:50:54,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50226 to 50218. [2018-10-23 18:50:54,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50218 states. [2018-10-23 18:50:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50218 states to 50218 states and 59044 transitions. [2018-10-23 18:50:54,464 INFO L78 Accepts]: Start accepts. Automaton has 50218 states and 59044 transitions. Word has length 227 [2018-10-23 18:50:54,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:54,464 INFO L481 AbstractCegarLoop]: Abstraction has 50218 states and 59044 transitions. [2018-10-23 18:50:54,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:50:54,464 INFO L276 IsEmpty]: Start isEmpty. Operand 50218 states and 59044 transitions. [2018-10-23 18:50:54,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-10-23 18:50:54,484 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:54,485 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:50:54,485 INFO L424 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:54,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:54,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1732676009, now seen corresponding path program 1 times [2018-10-23 18:50:54,485 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:54,486 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:54,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:54,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:54,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:54,683 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-23 18:50:54,684 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:54,684 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-23 18:50:54,685 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:50:54,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:50:54,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:54,685 INFO L87 Difference]: Start difference. First operand 50218 states and 59044 transitions. Second operand 3 states. [2018-10-23 18:50:55,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:55,685 INFO L93 Difference]: Finished difference Result 99538 states and 116952 transitions. [2018-10-23 18:50:55,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:50:55,685 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 261 [2018-10-23 18:50:55,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:55,740 INFO L225 Difference]: With dead ends: 99538 [2018-10-23 18:50:55,740 INFO L226 Difference]: Without dead ends: 49322 [2018-10-23 18:50:55,771 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:50:55,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49322 states. [2018-10-23 18:50:56,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49322 to 49322. [2018-10-23 18:50:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49322 states. [2018-10-23 18:50:56,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49322 states to 49322 states and 57402 transitions. [2018-10-23 18:50:56,310 INFO L78 Accepts]: Start accepts. Automaton has 49322 states and 57402 transitions. Word has length 261 [2018-10-23 18:50:56,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:50:56,311 INFO L481 AbstractCegarLoop]: Abstraction has 49322 states and 57402 transitions. [2018-10-23 18:50:56,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:50:56,311 INFO L276 IsEmpty]: Start isEmpty. Operand 49322 states and 57402 transitions. [2018-10-23 18:50:56,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-10-23 18:50:56,327 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:50:56,328 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:50:56,328 INFO L424 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:50:56,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:50:56,329 INFO L82 PathProgramCache]: Analyzing trace with hash 89359678, now seen corresponding path program 1 times [2018-10-23 18:50:56,329 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:50:56,329 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:50:56,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:56,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:50:56,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:50:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:50:57,070 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-23 18:50:57,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:50:57,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:50:57,071 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:50:57,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:50:57,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:57,072 INFO L87 Difference]: Start difference. First operand 49322 states and 57402 transitions. Second operand 4 states. [2018-10-23 18:50:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:50:59,355 INFO L93 Difference]: Finished difference Result 161219 states and 186079 transitions. [2018-10-23 18:50:59,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:50:59,356 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 303 [2018-10-23 18:50:59,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:50:59,505 INFO L225 Difference]: With dead ends: 161219 [2018-10-23 18:50:59,505 INFO L226 Difference]: Without dead ends: 111899 [2018-10-23 18:50:59,550 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:50:59,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111899 states. [2018-10-23 18:51:00,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111899 to 82368. [2018-10-23 18:51:00,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82368 states. [2018-10-23 18:51:00,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82368 states to 82368 states and 94333 transitions. [2018-10-23 18:51:00,546 INFO L78 Accepts]: Start accepts. Automaton has 82368 states and 94333 transitions. Word has length 303 [2018-10-23 18:51:00,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:51:00,546 INFO L481 AbstractCegarLoop]: Abstraction has 82368 states and 94333 transitions. [2018-10-23 18:51:00,546 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:51:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 82368 states and 94333 transitions. [2018-10-23 18:51:00,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-23 18:51:00,578 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:51:00,578 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-23 18:51:00,578 INFO L424 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:51:00,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:51:00,579 INFO L82 PathProgramCache]: Analyzing trace with hash -2062689804, now seen corresponding path program 1 times [2018-10-23 18:51:00,579 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:51:00,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:51:00,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:00,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:51:00,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:51:01,006 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 8 [2018-10-23 18:51:01,117 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-23 18:51:01,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:51:01,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:51:01,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:51:01,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:51:01,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:51:01,119 INFO L87 Difference]: Start difference. First operand 82368 states and 94333 transitions. Second operand 4 states. [2018-10-23 18:51:04,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:51:04,961 INFO L93 Difference]: Finished difference Result 173569 states and 198229 transitions. [2018-10-23 18:51:04,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:51:04,962 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-10-23 18:51:04,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:51:05,095 INFO L225 Difference]: With dead ends: 173569 [2018-10-23 18:51:05,095 INFO L226 Difference]: Without dead ends: 91203 [2018-10-23 18:51:05,155 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:51:05,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91203 states. [2018-10-23 18:51:06,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91203 to 82776. [2018-10-23 18:51:06,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82776 states. [2018-10-23 18:51:06,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82776 states to 82776 states and 94429 transitions. [2018-10-23 18:51:06,158 INFO L78 Accepts]: Start accepts. Automaton has 82776 states and 94429 transitions. Word has length 314 [2018-10-23 18:51:06,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:51:06,158 INFO L481 AbstractCegarLoop]: Abstraction has 82776 states and 94429 transitions. [2018-10-23 18:51:06,159 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:51:06,159 INFO L276 IsEmpty]: Start isEmpty. Operand 82776 states and 94429 transitions. [2018-10-23 18:51:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-23 18:51:06,191 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:51:06,191 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:51:06,192 INFO L424 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:51:06,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:51:06,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1725152879, now seen corresponding path program 1 times [2018-10-23 18:51:06,192 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:51:06,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:51:06,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:06,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:51:06,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:51:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:51:06,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:51:06,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 18:51:06,708 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:51:06,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:51:06,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:51:06,709 INFO L87 Difference]: Start difference. First operand 82776 states and 94429 transitions. Second operand 4 states. [2018-10-23 18:51:08,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:51:08,280 INFO L93 Difference]: Finished difference Result 317582 states and 361649 transitions. [2018-10-23 18:51:08,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:51:08,281 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-10-23 18:51:08,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:51:08,530 INFO L225 Difference]: With dead ends: 317582 [2018-10-23 18:51:08,530 INFO L226 Difference]: Without dead ends: 234808 [2018-10-23 18:51:08,604 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:51:09,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234808 states. [2018-10-23 18:51:11,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234808 to 158168. [2018-10-23 18:51:11,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158168 states. [2018-10-23 18:51:11,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158168 states to 158168 states and 180159 transitions. [2018-10-23 18:51:11,445 INFO L78 Accepts]: Start accepts. Automaton has 158168 states and 180159 transitions. Word has length 314 [2018-10-23 18:51:11,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:51:11,445 INFO L481 AbstractCegarLoop]: Abstraction has 158168 states and 180159 transitions. [2018-10-23 18:51:11,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:51:11,445 INFO L276 IsEmpty]: Start isEmpty. Operand 158168 states and 180159 transitions. [2018-10-23 18:51:11,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-10-23 18:51:11,478 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:51:11,478 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-23 18:51:11,478 INFO L424 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:51:11,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:51:11,479 INFO L82 PathProgramCache]: Analyzing trace with hash -839404260, now seen corresponding path program 1 times [2018-10-23 18:51:11,479 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:51:11,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:51:11,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:11,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:51:11,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:51:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-10-23 18:51:11,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:51:11,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:51:11,817 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:51:11,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:51:11,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:51:11,818 INFO L87 Difference]: Start difference. First operand 158168 states and 180159 transitions. Second operand 4 states. [2018-10-23 18:51:16,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:51:16,192 INFO L93 Difference]: Finished difference Result 459232 states and 520430 transitions. [2018-10-23 18:51:16,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:51:16,193 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 320 [2018-10-23 18:51:16,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:51:16,577 INFO L225 Difference]: With dead ends: 459232 [2018-10-23 18:51:16,577 INFO L226 Difference]: Without dead ends: 301066 [2018-10-23 18:51:16,698 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:51:16,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301066 states. [2018-10-23 18:51:21,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301066 to 301056. [2018-10-23 18:51:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301056 states. [2018-10-23 18:51:21,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301056 states to 301056 states and 340034 transitions. [2018-10-23 18:51:21,463 INFO L78 Accepts]: Start accepts. Automaton has 301056 states and 340034 transitions. Word has length 320 [2018-10-23 18:51:21,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:51:21,463 INFO L481 AbstractCegarLoop]: Abstraction has 301056 states and 340034 transitions. [2018-10-23 18:51:21,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:51:21,463 INFO L276 IsEmpty]: Start isEmpty. Operand 301056 states and 340034 transitions. [2018-10-23 18:51:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2018-10-23 18:51:21,497 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:51:21,498 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:51:21,498 INFO L424 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:51:21,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:51:21,498 INFO L82 PathProgramCache]: Analyzing trace with hash 961237387, now seen corresponding path program 1 times [2018-10-23 18:51:21,498 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:51:21,498 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:51:21,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:21,499 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:51:21,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:51:21,842 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-23 18:51:21,843 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:51:21,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:51:21,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:51:21,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:51:21,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:51:21,844 INFO L87 Difference]: Start difference. First operand 301056 states and 340034 transitions. Second operand 3 states. [2018-10-23 18:51:26,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:51:26,742 INFO L93 Difference]: Finished difference Result 570008 states and 644767 transitions. [2018-10-23 18:51:26,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:51:26,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 320 [2018-10-23 18:51:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:51:27,051 INFO L225 Difference]: With dead ends: 570008 [2018-10-23 18:51:27,052 INFO L226 Difference]: Without dead ends: 268954 [2018-10-23 18:51:27,186 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:51:27,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268954 states. [2018-10-23 18:51:37,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268954 to 268890. [2018-10-23 18:51:37,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268890 states. [2018-10-23 18:51:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268890 states to 268890 states and 299592 transitions. [2018-10-23 18:51:37,417 INFO L78 Accepts]: Start accepts. Automaton has 268890 states and 299592 transitions. Word has length 320 [2018-10-23 18:51:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:51:37,418 INFO L481 AbstractCegarLoop]: Abstraction has 268890 states and 299592 transitions. [2018-10-23 18:51:37,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:51:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 268890 states and 299592 transitions. [2018-10-23 18:51:37,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2018-10-23 18:51:37,455 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:51:37,455 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:51:37,456 INFO L424 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:51:37,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:51:37,456 INFO L82 PathProgramCache]: Analyzing trace with hash -866630993, now seen corresponding path program 1 times [2018-10-23 18:51:37,456 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:51:37,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:51:37,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:37,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:51:37,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:37,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:51:37,795 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 18:51:37,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:51:37,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:51:37,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 18:51:37,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 18:51:37,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:51:37,796 INFO L87 Difference]: Start difference. First operand 268890 states and 299592 transitions. Second operand 3 states. [2018-10-23 18:51:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:51:42,085 INFO L93 Difference]: Finished difference Result 547806 states and 611035 transitions. [2018-10-23 18:51:42,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 18:51:42,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 324 [2018-10-23 18:51:42,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:51:42,469 INFO L225 Difference]: With dead ends: 547806 [2018-10-23 18:51:42,469 INFO L226 Difference]: Without dead ends: 278918 [2018-10-23 18:51:42,626 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 18:51:42,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278918 states. [2018-10-23 18:51:48,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278918 to 278914. [2018-10-23 18:51:48,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278914 states. [2018-10-23 18:51:48,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278914 states to 278914 states and 308572 transitions. [2018-10-23 18:51:48,527 INFO L78 Accepts]: Start accepts. Automaton has 278914 states and 308572 transitions. Word has length 324 [2018-10-23 18:51:48,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:51:48,527 INFO L481 AbstractCegarLoop]: Abstraction has 278914 states and 308572 transitions. [2018-10-23 18:51:48,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 18:51:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 278914 states and 308572 transitions. [2018-10-23 18:51:48,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-10-23 18:51:48,577 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:51:48,578 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:51:48,578 INFO L424 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:51:48,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:51:48,578 INFO L82 PathProgramCache]: Analyzing trace with hash -944323539, now seen corresponding path program 1 times [2018-10-23 18:51:48,578 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:51:48,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:51:48,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:48,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:51:48,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:51:48,927 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-10-23 18:51:48,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 18:51:48,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 18:51:48,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 18:51:48,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 18:51:48,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:51:48,929 INFO L87 Difference]: Start difference. First operand 278914 states and 308572 transitions. Second operand 4 states. [2018-10-23 18:51:54,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:51:54,818 INFO L93 Difference]: Finished difference Result 574431 states and 636392 transitions. [2018-10-23 18:51:54,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 18:51:54,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 331 [2018-10-23 18:51:54,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:51:55,268 INFO L225 Difference]: With dead ends: 574431 [2018-10-23 18:51:55,268 INFO L226 Difference]: Without dead ends: 295519 [2018-10-23 18:51:55,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 18:51:55,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295519 states. [2018-10-23 18:51:59,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295519 to 295465. [2018-10-23 18:51:59,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295465 states. [2018-10-23 18:51:59,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295465 states to 295465 states and 326614 transitions. [2018-10-23 18:51:59,507 INFO L78 Accepts]: Start accepts. Automaton has 295465 states and 326614 transitions. Word has length 331 [2018-10-23 18:51:59,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:51:59,508 INFO L481 AbstractCegarLoop]: Abstraction has 295465 states and 326614 transitions. [2018-10-23 18:51:59,508 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 18:51:59,508 INFO L276 IsEmpty]: Start isEmpty. Operand 295465 states and 326614 transitions. [2018-10-23 18:51:59,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-10-23 18:51:59,547 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 18:51:59,548 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 18:51:59,548 INFO L424 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 18:51:59,548 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 18:51:59,548 INFO L82 PathProgramCache]: Analyzing trace with hash 491247765, now seen corresponding path program 1 times [2018-10-23 18:51:59,549 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-23 18:51:59,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-23 18:51:59,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:59,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:51:59,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 18:51:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:51:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 111 proven. 4 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-10-23 18:51:59,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 18:51:59,743 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-23 18:51:59,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 18:52:00,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 18:52:00,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-23 18:52:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-10-23 18:52:01,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 18:52:01,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2018-10-23 18:52:01,008 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 18:52:01,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 18:52:01,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-23 18:52:01,009 INFO L87 Difference]: Start difference. First operand 295465 states and 326614 transitions. Second operand 6 states. [2018-10-23 18:52:13,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 18:52:13,477 INFO L93 Difference]: Finished difference Result 795734 states and 882981 transitions. [2018-10-23 18:52:13,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-23 18:52:13,478 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 338 [2018-10-23 18:52:13,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 18:52:13,478 INFO L225 Difference]: With dead ends: 795734 [2018-10-23 18:52:13,478 INFO L226 Difference]: Without dead ends: 0 [2018-10-23 18:52:13,717 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2018-10-23 18:52:13,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-23 18:52:13,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-23 18:52:13,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-23 18:52:13,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-23 18:52:13,718 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 338 [2018-10-23 18:52:13,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 18:52:13,718 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-23 18:52:13,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 18:52:13,718 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-23 18:52:13,719 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-23 18:52:13,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-23 18:52:17,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:17,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:18,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:18,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:19,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:19,142 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:23,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:23,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,079 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,324 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,440 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,848 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:24,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,137 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,479 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,658 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:25,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:26,038 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:26,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:26,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:26,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:26,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:26,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:26,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:27,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:27,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:27,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:27,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:27,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:27,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:28,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:28,683 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:29,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:29,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:29,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:30,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:30,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:30,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:30,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:30,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:31,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:31,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:31,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:32,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:32,153 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:32,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:32,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:32,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:32,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:32,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:33,069 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:33,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:33,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:33,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:33,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:34,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:34,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:35,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:35,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:36,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:36,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:37,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:37,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:37,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:38,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:38,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:38,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:39,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:39,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:39,311 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:39,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:39,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:39,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:39,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:40,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:40,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:41,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:41,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:41,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:42,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:42,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:43,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:43,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:43,711 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:43,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:43,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:44,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:45,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:45,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:45,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:45,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:45,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:47,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:47,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:50,649 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:51,557 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:52,093 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:52,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:53,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:53,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:53,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:53,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:54,291 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:56,566 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:57,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:52:59,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:00,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:00,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:00,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:03,148 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:03,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:08,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:13,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:15,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:15,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:18,329 WARN L179 SmtUtils]: Spent 1.08 m on a formula simplification. DAG size of input: 3632 DAG size of output: 2350 [2018-10-23 18:53:20,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:20,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:21,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:21,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:21,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:21,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:25,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:25,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,033 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,039 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,318 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,660 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,718 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:26,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,497 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:27,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:28,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:28,206 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:28,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:28,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:29,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:29,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:29,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:29,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:29,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:29,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:30,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:30,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:31,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:31,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:31,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:31,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:32,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:32,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:32,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:32,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:32,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:33,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:33,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:33,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:33,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:34,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:34,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:34,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:34,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:34,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:34,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:35,457 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:35,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:35,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:35,771 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:36,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:36,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:37,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:38,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:38,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:39,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:39,283 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:39,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:39,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:41,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:41,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:41,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:41,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:42,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:42,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:42,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:42,398 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:42,449 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:42,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:43,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:43,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:44,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:44,688 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:45,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:45,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:46,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:46,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:46,573 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:47,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:47,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:47,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:47,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:48,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:49,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:49,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:49,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:49,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:51,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:51,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:54,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:55,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:55,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:56,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:56,796 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:56,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-23 18:53:57,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-10-23 18:53:57,300 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-10-23 18:53:57,301 INFO L168 Benchmark]: Toolchain (without parser) took 224538.23 ms. Allocated memory was 1.5 GB in the beginning and 5.4 GB in the end (delta: 3.9 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.6 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-10-23 18:53:57,302 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-23 18:53:57,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1114.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-10-23 18:53:57,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 301.76 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -854.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2018-10-23 18:53:57,305 INFO L168 Benchmark]: Boogie Preprocessor took 122.77 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-23 18:53:57,306 INFO L168 Benchmark]: RCFGBuilder took 6160.71 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 250.1 MB). Peak memory consumption was 250.1 MB. Max. memory is 7.1 GB. [2018-10-23 18:53:57,306 INFO L168 Benchmark]: TraceAbstraction took 216833.51 ms. Allocated memory was 2.2 GB in the beginning and 5.4 GB in the end (delta: 3.2 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-10-23 18:53:57,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1114.82 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 301.76 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -854.6 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.77 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6160.71 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 250.1 MB). Peak memory consumption was 250.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216833.51 ms. Allocated memory was 2.2 GB in the beginning and 5.4 GB in the end (delta: 3.2 GB). Free memory was 1.9 GB in the beginning and 3.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1545]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 3617. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown