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/Problem19_label20_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-26 22:09:45,603 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 22:09:45,607 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 22:09:45,625 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 22:09:45,626 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 22:09:45,627 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 22:09:45,629 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 22:09:45,632 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 22:09:45,636 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 22:09:45,637 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 22:09:45,638 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 22:09:45,639 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 22:09:45,640 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 22:09:45,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 22:09:45,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 22:09:45,651 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 22:09:45,652 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 22:09:45,657 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 22:09:45,661 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 22:09:45,665 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 22:09:45,666 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 22:09:45,667 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 22:09:45,669 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 22:09:45,669 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 22:09:45,670 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 22:09:45,670 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 22:09:45,671 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 22:09:45,672 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 22:09:45,673 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 22:09:45,674 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 22:09:45,674 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 22:09:45,674 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-26 22:09:45,677 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-26 22:09:45,697 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 22:09:45,698 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 22:09:45,699 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 22:09:45,699 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-26 22:09:45,699 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-26 22:09:45,699 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-26 22:09:45,700 INFO L133 SettingsManager]: * Use SBE=true [2018-10-26 22:09:45,701 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 22:09:45,701 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 22:09:45,701 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 22:09:45,701 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 22:09:45,701 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 22:09:45,702 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 22:09:45,702 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 22:09:45,702 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 22:09:45,702 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 22:09:45,702 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 22:09:45,703 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 22:09:45,703 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 22:09:45,703 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:09:45,704 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 22:09:45,704 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 22:09:45,704 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 22:09:45,704 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-26 22:09:45,704 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 22:09:45,705 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 22:09:45,705 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 22:09:45,705 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-26 22:09:45,773 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 22:09:45,787 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 22:09:45,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 22:09:45,792 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 22:09:45,793 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 22:09:45,794 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label20_true-unreach-call.c [2018-10-26 22:09:45,857 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59934f952/ff09b8666f134c2b9a529d23a8da8c87/FLAG6bef47d1e [2018-10-26 22:09:46,795 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 22:09:46,797 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label20_true-unreach-call.c [2018-10-26 22:09:46,845 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59934f952/ff09b8666f134c2b9a529d23a8da8c87/FLAG6bef47d1e [2018-10-26 22:09:46,861 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/59934f952/ff09b8666f134c2b9a529d23a8da8c87 [2018-10-26 22:09:46,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 22:09:46,878 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-26 22:09:46,879 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 22:09:46,879 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 22:09:46,883 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 22:09:46,884 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:09:46" (1/1) ... [2018-10-26 22:09:46,888 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749149db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:46, skipping insertion in model container [2018-10-26 22:09:46,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 10:09:46" (1/1) ... [2018-10-26 22:09:46,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 22:09:47,151 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 22:09:49,116 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:09:49,121 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 22:09:50,187 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 22:09:50,247 INFO L193 MainTranslator]: Completed translation [2018-10-26 22:09:50,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50 WrapperNode [2018-10-26 22:09:50,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 22:09:50,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 22:09:50,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 22:09:50,250 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 22:09:50,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:50,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:51,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 22:09:51,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 22:09:51,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 22:09:51,436 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 22:09:51,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:51,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:51,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:51,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:51,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:51,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:51,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... [2018-10-26 22:09:52,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 22:09:52,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 22:09:52,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 22:09:52,179 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 22:09:52,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 22:09:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-26 22:09:52,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 22:09:52,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 22:10:09,674 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 22:10:09,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:10:09 BoogieIcfgContainer [2018-10-26 22:10:09,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 22:10:09,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 22:10:09,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 22:10:09,680 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 22:10:09,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 10:09:46" (1/3) ... [2018-10-26 22:10:09,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd9b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:10:09, skipping insertion in model container [2018-10-26 22:10:09,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 10:09:50" (2/3) ... [2018-10-26 22:10:09,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd9b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 10:10:09, skipping insertion in model container [2018-10-26 22:10:09,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 10:10:09" (3/3) ... [2018-10-26 22:10:09,686 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label20_true-unreach-call.c [2018-10-26 22:10:09,697 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 22:10:09,707 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 22:10:09,726 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 22:10:09,779 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 22:10:09,779 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 22:10:09,780 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 22:10:09,780 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 22:10:09,780 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 22:10:09,780 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 22:10:09,780 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 22:10:09,780 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 22:10:09,781 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 22:10:09,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-26 22:10:09,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-10-26 22:10:09,843 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:10:09,844 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] [2018-10-26 22:10:09,847 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:10:09,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:10:09,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1934902334, now seen corresponding path program 1 times [2018-10-26 22:10:09,856 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:10:09,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:10:09,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:09,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:09,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:09,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:10:10,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:10:10,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:10:10,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:10:10,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:10:10,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:10:10,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:10:10,705 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-26 22:10:39,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:10:39,715 INFO L93 Difference]: Finished difference Result 6326 states and 12085 transitions. [2018-10-26 22:10:39,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:10:39,718 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-10-26 22:10:39,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:10:39,780 INFO L225 Difference]: With dead ends: 6326 [2018-10-26 22:10:39,780 INFO L226 Difference]: Without dead ends: 4570 [2018-10-26 22:10:39,790 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 [2018-10-26 22:10:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4570 states. [2018-10-26 22:10:39,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4570 to 4564. [2018-10-26 22:10:39,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4564 states. [2018-10-26 22:10:40,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 7499 transitions. [2018-10-26 22:10:40,006 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 7499 transitions. Word has length 44 [2018-10-26 22:10:40,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:10:40,007 INFO L481 AbstractCegarLoop]: Abstraction has 4564 states and 7499 transitions. [2018-10-26 22:10:40,007 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:10:40,007 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 7499 transitions. [2018-10-26 22:10:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-10-26 22:10:40,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:10:40,015 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:10:40,015 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:10:40,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:10:40,015 INFO L82 PathProgramCache]: Analyzing trace with hash -1521545969, now seen corresponding path program 1 times [2018-10-26 22:10:40,016 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:10:40,016 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:10:40,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:40,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:10:40,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:10:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:10:40,536 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:10:40,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:10:40,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:10:40,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:10:40,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:10:40,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:10:40,540 INFO L87 Difference]: Start difference. First operand 4564 states and 7499 transitions. Second operand 4 states. [2018-10-26 22:11:07,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:11:07,819 INFO L93 Difference]: Finished difference Result 17552 states and 29056 transitions. [2018-10-26 22:11:07,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:11:07,820 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2018-10-26 22:11:07,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:11:07,889 INFO L225 Difference]: With dead ends: 17552 [2018-10-26 22:11:07,889 INFO L226 Difference]: Without dead ends: 12990 [2018-10-26 22:11:07,899 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:07,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12990 states. [2018-10-26 22:11:08,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12990 to 8666. [2018-10-26 22:11:08,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8666 states. [2018-10-26 22:11:08,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8666 states to 8666 states and 13862 transitions. [2018-10-26 22:11:08,117 INFO L78 Accepts]: Start accepts. Automaton has 8666 states and 13862 transitions. Word has length 148 [2018-10-26 22:11:08,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:11:08,117 INFO L481 AbstractCegarLoop]: Abstraction has 8666 states and 13862 transitions. [2018-10-26 22:11:08,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:11:08,118 INFO L276 IsEmpty]: Start isEmpty. Operand 8666 states and 13862 transitions. [2018-10-26 22:11:08,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-26 22:11:08,124 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:11:08,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:11:08,130 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:11:08,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:11:08,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1655785275, now seen corresponding path program 1 times [2018-10-26 22:11:08,131 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:11:08,131 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:11:08,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:08,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:11:08,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:08,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:11:08,510 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:11:08,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:11:08,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:11:08,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:11:08,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:11:08,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:08,512 INFO L87 Difference]: Start difference. First operand 8666 states and 13862 transitions. Second operand 4 states. [2018-10-26 22:11:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:11:29,671 INFO L93 Difference]: Finished difference Result 33845 states and 54415 transitions. [2018-10-26 22:11:29,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:11:29,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-10-26 22:11:29,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:11:29,763 INFO L225 Difference]: With dead ends: 33845 [2018-10-26 22:11:29,763 INFO L226 Difference]: Without dead ends: 25181 [2018-10-26 22:11:29,776 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25181 states. [2018-10-26 22:11:30,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25181 to 25141. [2018-10-26 22:11:30,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25141 states. [2018-10-26 22:11:30,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25141 states to 25141 states and 35895 transitions. [2018-10-26 22:11:30,157 INFO L78 Accepts]: Start accepts. Automaton has 25141 states and 35895 transitions. Word has length 152 [2018-10-26 22:11:30,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:11:30,158 INFO L481 AbstractCegarLoop]: Abstraction has 25141 states and 35895 transitions. [2018-10-26 22:11:30,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:11:30,158 INFO L276 IsEmpty]: Start isEmpty. Operand 25141 states and 35895 transitions. [2018-10-26 22:11:30,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-26 22:11:30,160 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:11:30,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:11:30,161 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:11:30,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:11:30,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1190531695, now seen corresponding path program 1 times [2018-10-26 22:11:30,162 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:11:30,162 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:11:30,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:30,163 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:11:30,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:30,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:11:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 22:11:30,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:11:30,510 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 22:11:30,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:11:30,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:11:30,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:30,512 INFO L87 Difference]: Start difference. First operand 25141 states and 35895 transitions. Second operand 4 states. [2018-10-26 22:11:55,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:11:55,411 INFO L93 Difference]: Finished difference Result 98400 states and 140807 transitions. [2018-10-26 22:11:55,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:11:55,411 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2018-10-26 22:11:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:11:55,543 INFO L225 Difference]: With dead ends: 98400 [2018-10-26 22:11:55,543 INFO L226 Difference]: Without dead ends: 73261 [2018-10-26 22:11:55,581 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:11:55,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73261 states. [2018-10-26 22:11:56,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73261 to 73240. [2018-10-26 22:11:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73240 states. [2018-10-26 22:11:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73240 states to 73240 states and 91791 transitions. [2018-10-26 22:11:56,506 INFO L78 Accepts]: Start accepts. Automaton has 73240 states and 91791 transitions. Word has length 175 [2018-10-26 22:11:56,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:11:56,506 INFO L481 AbstractCegarLoop]: Abstraction has 73240 states and 91791 transitions. [2018-10-26 22:11:56,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:11:56,507 INFO L276 IsEmpty]: Start isEmpty. Operand 73240 states and 91791 transitions. [2018-10-26 22:11:56,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2018-10-26 22:11:56,517 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:11:56,518 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 22:11:56,518 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:11:56,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:11:56,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1640099345, now seen corresponding path program 1 times [2018-10-26 22:11:56,519 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:11:56,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:11:56,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:56,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:11:56,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:11:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:11:57,109 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-26 22:11:57,424 WARN L179 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 18 [2018-10-26 22:11:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2018-10-26 22:11:58,141 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:11:58,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 22:11:58,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 22:11:58,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 22:11:58,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-26 22:11:58,143 INFO L87 Difference]: Start difference. First operand 73240 states and 91791 transitions. Second operand 7 states. [2018-10-26 22:12:27,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:12:27,346 INFO L93 Difference]: Finished difference Result 172446 states and 210821 transitions. [2018-10-26 22:12:27,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 22:12:27,348 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 499 [2018-10-26 22:12:27,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:12:27,520 INFO L225 Difference]: With dead ends: 172446 [2018-10-26 22:12:27,520 INFO L226 Difference]: Without dead ends: 99208 [2018-10-26 22:12:27,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-26 22:12:27,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99208 states. [2018-10-26 22:12:28,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99208 to 95104. [2018-10-26 22:12:28,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95104 states. [2018-10-26 22:12:29,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95104 states to 95104 states and 114312 transitions. [2018-10-26 22:12:29,076 INFO L78 Accepts]: Start accepts. Automaton has 95104 states and 114312 transitions. Word has length 499 [2018-10-26 22:12:29,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:12:29,077 INFO L481 AbstractCegarLoop]: Abstraction has 95104 states and 114312 transitions. [2018-10-26 22:12:29,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 22:12:29,077 INFO L276 IsEmpty]: Start isEmpty. Operand 95104 states and 114312 transitions. [2018-10-26 22:12:29,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2018-10-26 22:12:29,093 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:12:29,095 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-26 22:12:29,095 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:12:29,096 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:12:29,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1098389193, now seen corresponding path program 1 times [2018-10-26 22:12:29,096 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:12:29,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:12:29,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:12:29,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:12:29,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:12:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:12:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-10-26 22:12:29,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:12:29,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:12:29,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:12:29,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:12:29,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:12:29,856 INFO L87 Difference]: Start difference. First operand 95104 states and 114312 transitions. Second operand 4 states. [2018-10-26 22:12:48,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:12:48,488 INFO L93 Difference]: Finished difference Result 240760 states and 294969 transitions. [2018-10-26 22:12:48,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:12:48,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 527 [2018-10-26 22:12:48,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:12:48,663 INFO L225 Difference]: With dead ends: 240760 [2018-10-26 22:12:48,663 INFO L226 Difference]: Without dead ends: 145658 [2018-10-26 22:12:48,735 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:12:48,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145658 states. [2018-10-26 22:12:49,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145658 to 142915. [2018-10-26 22:12:49,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142915 states. [2018-10-26 22:12:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142915 states to 142915 states and 167349 transitions. [2018-10-26 22:12:51,162 INFO L78 Accepts]: Start accepts. Automaton has 142915 states and 167349 transitions. Word has length 527 [2018-10-26 22:12:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:12:51,163 INFO L481 AbstractCegarLoop]: Abstraction has 142915 states and 167349 transitions. [2018-10-26 22:12:51,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:12:51,163 INFO L276 IsEmpty]: Start isEmpty. Operand 142915 states and 167349 transitions. [2018-10-26 22:12:51,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 900 [2018-10-26 22:12:51,178 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:12:51,179 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:12:51,179 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:12:51,180 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:12:51,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1828206602, now seen corresponding path program 1 times [2018-10-26 22:12:51,181 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:12:51,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:12:51,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:12:51,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:12:51,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:12:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:12:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-10-26 22:12:52,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:12:52,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:12:52,410 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:12:52,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:12:52,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:12:52,411 INFO L87 Difference]: Start difference. First operand 142915 states and 167349 transitions. Second operand 4 states. [2018-10-26 22:13:19,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 22:13:19,021 INFO L93 Difference]: Finished difference Result 285831 states and 334705 transitions. [2018-10-26 22:13:19,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:13:19,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 899 [2018-10-26 22:13:19,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 22:13:19,206 INFO L225 Difference]: With dead ends: 285831 [2018-10-26 22:13:19,207 INFO L226 Difference]: Without dead ends: 142918 [2018-10-26 22:13:19,296 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:13:19,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142918 states. [2018-10-26 22:13:21,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142918 to 131979. [2018-10-26 22:13:21,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131979 states. [2018-10-26 22:13:21,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131979 states to 131979 states and 147273 transitions. [2018-10-26 22:13:21,588 INFO L78 Accepts]: Start accepts. Automaton has 131979 states and 147273 transitions. Word has length 899 [2018-10-26 22:13:21,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 22:13:21,589 INFO L481 AbstractCegarLoop]: Abstraction has 131979 states and 147273 transitions. [2018-10-26 22:13:21,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 22:13:21,590 INFO L276 IsEmpty]: Start isEmpty. Operand 131979 states and 147273 transitions. [2018-10-26 22:13:21,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 918 [2018-10-26 22:13:21,605 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 22:13:21,606 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 22:13:21,606 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 22:13:21,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 22:13:21,606 INFO L82 PathProgramCache]: Analyzing trace with hash 11216574, now seen corresponding path program 1 times [2018-10-26 22:13:21,607 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-26 22:13:21,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-26 22:13:21,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:21,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 22:13:21,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 22:13:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 22:13:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 603 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2018-10-26 22:13:22,854 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 22:13:22,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 22:13:22,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 22:13:22,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 22:13:22,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 22:13:22,856 INFO L87 Difference]: Start difference. First operand 131979 states and 147273 transitions. Second operand 4 states. Received shutdown request... [2018-10-26 22:13:44,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 22:13:44,763 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-26 22:13:44,768 WARN L205 ceAbstractionStarter]: Timeout [2018-10-26 22:13:44,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 10:13:44 BoogieIcfgContainer [2018-10-26 22:13:44,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 22:13:44,770 INFO L168 Benchmark]: Toolchain (without parser) took 237894.37 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 24.0 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-26 22:13:44,772 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-26 22:13:44,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3369.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 989.3 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:44,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 1187.12 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.3 MB). Free memory was 989.3 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:44,774 INFO L168 Benchmark]: Boogie Preprocessor took 742.15 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 103.2 MB). Peak memory consumption was 103.2 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:44,776 INFO L168 Benchmark]: RCFGBuilder took 17497.33 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 260.0 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 492.4 MB). Peak memory consumption was 752.5 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:44,777 INFO L168 Benchmark]: TraceAbstraction took 215091.86 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 761.3 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 161.5 MB). Peak memory consumption was 922.8 MB. Max. memory is 7.1 GB. [2018-10-26 22:13:44,787 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 3369.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 989.3 MB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1187.12 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.3 MB). Free memory was 989.3 MB in the beginning and 2.1 GB in the end (delta: -1.1 GB). Peak memory consumption was 117.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 742.15 ms. Allocated memory is still 2.4 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 103.2 MB). Peak memory consumption was 103.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17497.33 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 260.0 MB). Free memory was 2.0 GB in the beginning and 1.5 GB in the end (delta: 492.4 MB). Peak memory consumption was 752.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215091.86 ms. Allocated memory was 2.6 GB in the beginning and 3.4 GB in the end (delta: 761.3 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 161.5 MB). Peak memory consumption was 922.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 145). Cancelled while BasicCegarLoop was constructing difference of abstraction (131979states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (357901 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 214.9s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 199.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9779 SDtfs, 34855 SDslu, 3040 SDs, 0 SdLazy, 72842 SolverSat, 18486 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 169.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=142915occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 22177 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 3361 NumberOfCodeBlocks, 3361 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 3353 ConstructedInterpolants, 0 QuantifiedInterpolants, 4073081 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 2201/2201 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown