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_label47_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 14:46:09,597 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 14:46:09,600 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 14:46:09,617 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 14:46:09,617 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 14:46:09,618 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 14:46:09,620 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 14:46:09,622 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 14:46:09,625 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 14:46:09,626 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 14:46:09,627 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 14:46:09,628 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 14:46:09,629 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 14:46:09,630 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 14:46:09,631 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 14:46:09,639 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 14:46:09,640 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 14:46:09,641 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 14:46:09,647 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 14:46:09,650 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 14:46:09,654 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 14:46:09,655 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 14:46:09,658 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 14:46:09,658 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 14:46:09,658 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 14:46:09,659 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 14:46:09,660 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 14:46:09,662 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 14:46:09,662 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 14:46:09,663 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 14:46:09,663 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 14:46:09,666 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 14:46:09,666 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 14:46:09,666 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 14:46:09,669 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 14:46:09,669 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 14:46:09,670 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Default.epf [2018-10-24 14:46:09,689 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 14:46:09,689 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 14:46:09,690 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 14:46:09,690 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 14:46:09,691 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 14:46:09,691 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 14:46:09,691 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 14:46:09,691 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 14:46:09,691 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 14:46:09,692 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 14:46:09,693 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 14:46:09,693 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 14:46:09,693 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 14:46:09,693 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 14:46:09,694 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 14:46:09,694 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 14:46:09,694 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 14:46:09,694 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 14:46:09,694 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 14:46:09,695 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:46:09,695 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 14:46:09,695 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 14:46:09,695 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 14:46:09,695 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 14:46:09,695 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 14:46:09,696 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 14:46:09,696 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 14:46:09,696 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 14:46:09,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 14:46:09,781 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 14:46:09,785 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 14:46:09,788 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 14:46:09,788 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 14:46:09,789 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c [2018-10-24 14:46:09,863 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/63af41a5f/bed000fdf41a4f2b814e22909ef06de9/FLAGba3635288 [2018-10-24 14:46:10,713 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 14:46:10,715 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c [2018-10-24 14:46:10,776 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/63af41a5f/bed000fdf41a4f2b814e22909ef06de9/FLAGba3635288 [2018-10-24 14:46:10,798 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/63af41a5f/bed000fdf41a4f2b814e22909ef06de9 [2018-10-24 14:46:10,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 14:46:10,814 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 14:46:10,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 14:46:10,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 14:46:10,820 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 14:46:10,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:46:10" (1/1) ... [2018-10-24 14:46:10,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b704e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:10, skipping insertion in model container [2018-10-24 14:46:10,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:46:10" (1/1) ... [2018-10-24 14:46:10,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 14:46:11,085 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 14:46:13,187 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:46:13,192 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 14:46:14,499 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 14:46:14,550 INFO L193 MainTranslator]: Completed translation [2018-10-24 14:46:14,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14 WrapperNode [2018-10-24 14:46:14,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 14:46:14,552 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 14:46:14,552 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 14:46:14,552 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 14:46:14,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:14,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:15,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 14:46:15,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 14:46:15,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 14:46:15,676 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 14:46:15,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:15,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:15,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:15,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:16,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:16,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:16,410 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... [2018-10-24 14:46:16,633 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 14:46:16,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 14:46:16,634 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 14:46:16,634 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 14:46:16,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 14:46:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-10-24 14:46:16,701 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 14:46:16,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 14:46:33,602 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 14:46:33,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:46:33 BoogieIcfgContainer [2018-10-24 14:46:33,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 14:46:33,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 14:46:33,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 14:46:33,608 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 14:46:33,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:46:10" (1/3) ... [2018-10-24 14:46:33,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f3f37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:46:33, skipping insertion in model container [2018-10-24 14:46:33,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:46:14" (2/3) ... [2018-10-24 14:46:33,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f3f37f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:46:33, skipping insertion in model container [2018-10-24 14:46:33,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:46:33" (3/3) ... [2018-10-24 14:46:33,612 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label47_false-unreach-call.c [2018-10-24 14:46:33,620 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 14:46:33,629 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 14:46:33,646 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 14:46:33,699 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 14:46:33,699 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 14:46:33,699 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 14:46:33,700 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 14:46:33,700 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 14:46:33,700 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 14:46:33,700 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 14:46:33,700 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 14:46:33,700 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 14:46:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states. [2018-10-24 14:46:33,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-10-24 14:46:33,762 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:46:33,763 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:46:33,766 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:46:33,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:46:33,772 INFO L82 PathProgramCache]: Analyzing trace with hash 384191218, now seen corresponding path program 1 times [2018-10-24 14:46:33,774 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:46:33,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:46:33,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:33,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:46:33,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:46:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:46:33,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:46:33,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:46:33,963 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:46:33,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:46:33,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:46:33,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:46:33,985 INFO L87 Difference]: Start difference. First operand 1749 states. Second operand 4 states. [2018-10-24 14:47:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:02,072 INFO L93 Difference]: Finished difference Result 6414 states and 12256 transitions. [2018-10-24 14:47:02,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:47:02,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-10-24 14:47:02,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:02,134 INFO L225 Difference]: With dead ends: 6414 [2018-10-24 14:47:02,134 INFO L226 Difference]: Without dead ends: 4658 [2018-10-24 14:47:02,143 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:47:02,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2018-10-24 14:47:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4577. [2018-10-24 14:47:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4577 states. [2018-10-24 14:47:02,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 7450 transitions. [2018-10-24 14:47:02,354 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 7450 transitions. Word has length 9 [2018-10-24 14:47:02,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:02,354 INFO L481 AbstractCegarLoop]: Abstraction has 4577 states and 7450 transitions. [2018-10-24 14:47:02,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:47:02,354 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 7450 transitions. [2018-10-24 14:47:02,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-10-24 14:47:02,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:02,359 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 14:47:02,359 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:02,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:02,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1234321850, now seen corresponding path program 1 times [2018-10-24 14:47:02,360 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:02,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:02,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:02,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:02,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:03,183 WARN L179 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 18 [2018-10-24 14:47:03,656 WARN L179 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2018-10-24 14:47:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:47:03,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:47:03,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 14:47:03,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 14:47:03,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 14:47:03,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 14:47:03,989 INFO L87 Difference]: Start difference. First operand 4577 states and 7450 transitions. Second operand 6 states. [2018-10-24 14:47:04,156 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 14:47:37,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:47:37,764 INFO L93 Difference]: Finished difference Result 17372 states and 27392 transitions. [2018-10-24 14:47:37,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 14:47:37,765 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2018-10-24 14:47:37,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:47:37,824 INFO L225 Difference]: With dead ends: 17372 [2018-10-24 14:47:37,824 INFO L226 Difference]: Without dead ends: 12797 [2018-10-24 14:47:37,832 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2018-10-24 14:47:37,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12797 states. [2018-10-24 14:47:38,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12797 to 11422. [2018-10-24 14:47:38,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11422 states. [2018-10-24 14:47:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11422 states to 11422 states and 16533 transitions. [2018-10-24 14:47:38,070 INFO L78 Accepts]: Start accepts. Automaton has 11422 states and 16533 transitions. Word has length 81 [2018-10-24 14:47:38,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:47:38,071 INFO L481 AbstractCegarLoop]: Abstraction has 11422 states and 16533 transitions. [2018-10-24 14:47:38,071 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 14:47:38,072 INFO L276 IsEmpty]: Start isEmpty. Operand 11422 states and 16533 transitions. [2018-10-24 14:47:38,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-10-24 14:47:38,087 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:47:38,088 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:47:38,088 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:47:38,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:47:38,089 INFO L82 PathProgramCache]: Analyzing trace with hash -2116023050, now seen corresponding path program 1 times [2018-10-24 14:47:38,089 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:47:38,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:47:38,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:38,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:47:38,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:47:38,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:47:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 74 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 14:47:39,077 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:47:39,077 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 14:47:39,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 14:47:39,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 14:47:39,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:47:39,079 INFO L87 Difference]: Start difference. First operand 11422 states and 16533 transitions. Second operand 7 states. [2018-10-24 14:48:13,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:13,205 INFO L93 Difference]: Finished difference Result 33784 states and 50256 transitions. [2018-10-24 14:48:13,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:48:13,207 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 286 [2018-10-24 14:48:13,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:13,271 INFO L225 Difference]: With dead ends: 33784 [2018-10-24 14:48:13,271 INFO L226 Difference]: Without dead ends: 22364 [2018-10-24 14:48:13,287 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2018-10-24 14:48:13,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22364 states. [2018-10-24 14:48:13,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22364 to 18262. [2018-10-24 14:48:13,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18262 states. [2018-10-24 14:48:13,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18262 states to 18262 states and 23704 transitions. [2018-10-24 14:48:13,636 INFO L78 Accepts]: Start accepts. Automaton has 18262 states and 23704 transitions. Word has length 286 [2018-10-24 14:48:13,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:13,637 INFO L481 AbstractCegarLoop]: Abstraction has 18262 states and 23704 transitions. [2018-10-24 14:48:13,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 14:48:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 18262 states and 23704 transitions. [2018-10-24 14:48:13,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-10-24 14:48:13,650 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:13,654 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:48:13,654 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:13,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:13,655 INFO L82 PathProgramCache]: Analyzing trace with hash -754898288, now seen corresponding path program 1 times [2018-10-24 14:48:13,655 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:13,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:13,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:13,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:13,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:13,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:14,078 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 14:48:14,214 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-10-24 14:48:14,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:48:14,214 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:48:14,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:14,383 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:48:14,498 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:48:14,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:48:14,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-24 14:48:14,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:14,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:14,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:14,525 INFO L87 Difference]: Start difference. First operand 18262 states and 23704 transitions. Second operand 4 states. [2018-10-24 14:48:40,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:48:40,426 INFO L93 Difference]: Finished difference Result 65436 states and 86915 transitions. [2018-10-24 14:48:40,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:48:40,427 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2018-10-24 14:48:40,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:48:40,518 INFO L225 Difference]: With dead ends: 65436 [2018-10-24 14:48:40,519 INFO L226 Difference]: Without dead ends: 47176 [2018-10-24 14:48:40,544 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:40,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47176 states. [2018-10-24 14:48:41,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47176 to 29184. [2018-10-24 14:48:41,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29184 states. [2018-10-24 14:48:41,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29184 states to 29184 states and 38898 transitions. [2018-10-24 14:48:41,201 INFO L78 Accepts]: Start accepts. Automaton has 29184 states and 38898 transitions. Word has length 314 [2018-10-24 14:48:41,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:48:41,203 INFO L481 AbstractCegarLoop]: Abstraction has 29184 states and 38898 transitions. [2018-10-24 14:48:41,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:48:41,203 INFO L276 IsEmpty]: Start isEmpty. Operand 29184 states and 38898 transitions. [2018-10-24 14:48:41,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-10-24 14:48:41,210 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:48:41,210 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:48:41,211 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:48:41,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:48:41,211 INFO L82 PathProgramCache]: Analyzing trace with hash 220115451, now seen corresponding path program 1 times [2018-10-24 14:48:41,211 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:48:41,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:48:41,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:41,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:48:41,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:48:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:48:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:48:41,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:48:41,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 14:48:41,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 14:48:41,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 14:48:41,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 14:48:41,711 INFO L87 Difference]: Start difference. First operand 29184 states and 38898 transitions. Second operand 4 states. [2018-10-24 14:49:00,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:00,305 INFO L93 Difference]: Finished difference Result 77509 states and 105464 transitions. [2018-10-24 14:49:00,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 14:49:00,307 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 343 [2018-10-24 14:49:00,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:00,375 INFO L225 Difference]: With dead ends: 77509 [2018-10-24 14:49:00,375 INFO L226 Difference]: Without dead ends: 46960 [2018-10-24 14:49:00,413 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 [2018-10-24 14:49:00,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46960 states. [2018-10-24 14:49:00,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46960 to 46955. [2018-10-24 14:49:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46955 states. [2018-10-24 14:49:00,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46955 states to 46955 states and 59933 transitions. [2018-10-24 14:49:00,952 INFO L78 Accepts]: Start accepts. Automaton has 46955 states and 59933 transitions. Word has length 343 [2018-10-24 14:49:00,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:00,953 INFO L481 AbstractCegarLoop]: Abstraction has 46955 states and 59933 transitions. [2018-10-24 14:49:00,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 14:49:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand 46955 states and 59933 transitions. [2018-10-24 14:49:00,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-10-24 14:49:00,960 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:00,961 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:49:00,961 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:00,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:00,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1285651964, now seen corresponding path program 1 times [2018-10-24 14:49:00,962 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:00,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:00,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:00,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:00,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:01,614 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 13 proven. 65 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-10-24 14:49:01,615 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 14:49:01,615 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 14:49:01,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:01,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:01,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 14:49:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 14:49:01,869 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 14:49:01,869 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2018-10-24 14:49:01,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 14:49:01,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 14:49:01,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-10-24 14:49:01,870 INFO L87 Difference]: Start difference. First operand 46955 states and 59933 transitions. Second operand 5 states. [2018-10-24 14:49:30,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:30,151 INFO L93 Difference]: Finished difference Result 176219 states and 226714 transitions. [2018-10-24 14:49:30,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 14:49:30,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 368 [2018-10-24 14:49:30,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:30,289 INFO L225 Difference]: With dead ends: 176219 [2018-10-24 14:49:30,289 INFO L226 Difference]: Without dead ends: 122429 [2018-10-24 14:49:30,331 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 14:49:30,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122429 states. [2018-10-24 14:49:31,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122429 to 122343. [2018-10-24 14:49:31,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122343 states. [2018-10-24 14:49:31,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122343 states to 122343 states and 141489 transitions. [2018-10-24 14:49:31,529 INFO L78 Accepts]: Start accepts. Automaton has 122343 states and 141489 transitions. Word has length 368 [2018-10-24 14:49:31,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:31,530 INFO L481 AbstractCegarLoop]: Abstraction has 122343 states and 141489 transitions. [2018-10-24 14:49:31,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 14:49:31,530 INFO L276 IsEmpty]: Start isEmpty. Operand 122343 states and 141489 transitions. [2018-10-24 14:49:31,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2018-10-24 14:49:31,538 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:31,538 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:49:31,539 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:31,539 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:31,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1102712714, now seen corresponding path program 1 times [2018-10-24 14:49:31,539 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:31,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:31,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:31,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:31,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:31,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:32,363 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-10-24 14:49:32,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:49:32,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:49:32,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:49:32,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:49:32,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:49:32,365 INFO L87 Difference]: Start difference. First operand 122343 states and 141489 transitions. Second operand 3 states. [2018-10-24 14:49:49,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:49:49,470 INFO L93 Difference]: Finished difference Result 284383 states and 333228 transitions. [2018-10-24 14:49:49,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:49:49,470 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 465 [2018-10-24 14:49:49,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:49:49,665 INFO L225 Difference]: With dead ends: 284383 [2018-10-24 14:49:49,666 INFO L226 Difference]: Without dead ends: 163408 [2018-10-24 14:49:49,741 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:49:49,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163408 states. [2018-10-24 14:49:51,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163408 to 163335. [2018-10-24 14:49:51,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 163335 states. [2018-10-24 14:49:51,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163335 states to 163335 states and 186585 transitions. [2018-10-24 14:49:51,769 INFO L78 Accepts]: Start accepts. Automaton has 163335 states and 186585 transitions. Word has length 465 [2018-10-24 14:49:51,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 14:49:51,770 INFO L481 AbstractCegarLoop]: Abstraction has 163335 states and 186585 transitions. [2018-10-24 14:49:51,770 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 14:49:51,770 INFO L276 IsEmpty]: Start isEmpty. Operand 163335 states and 186585 transitions. [2018-10-24 14:49:51,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2018-10-24 14:49:51,792 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 14:49:51,793 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 14:49:51,793 INFO L424 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 14:49:51,794 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 14:49:51,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1420902701, now seen corresponding path program 1 times [2018-10-24 14:49:51,794 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 14:49:51,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 14:49:51,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:51,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 14:49:51,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 14:49:51,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 14:49:52,482 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2018-10-24 14:49:52,482 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 14:49:52,482 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 14:49:52,483 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 14:49:52,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 14:49:52,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 14:49:52,485 INFO L87 Difference]: Start difference. First operand 163335 states and 186585 transitions. Second operand 3 states. [2018-10-24 14:50:08,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 14:50:08,562 INFO L93 Difference]: Finished difference Result 358166 states and 412789 transitions. [2018-10-24 14:50:08,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 14:50:08,563 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 710 [2018-10-24 14:50:08,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 14:50:08,809 INFO L225 Difference]: With dead ends: 358166 [2018-10-24 14:50:08,809 INFO L226 Difference]: Without dead ends: 194828 [2018-10-24 14:50:08,895 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 [2018-10-24 14:50:09,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194828 states. Received shutdown request... [2018-10-24 14:50:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194828 to 194755. [2018-10-24 14:50:10,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194755 states. [2018-10-24 14:50:10,364 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 14:50:10,369 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 14:50:10,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:50:10 BoogieIcfgContainer [2018-10-24 14:50:10,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 14:50:10,370 INFO L168 Benchmark]: Toolchain (without parser) took 239558.24 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 955.0 MB in the end (delta: 457.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-24 14:50:10,371 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 14:50:10,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3736.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. [2018-10-24 14:50:10,373 INFO L168 Benchmark]: Boogie Procedure Inliner took 1123.25 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 874.0 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. [2018-10-24 14:50:10,375 INFO L168 Benchmark]: Boogie Preprocessor took 957.80 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 111.9 MB). Peak memory consumption was 111.9 MB. Max. memory is 7.1 GB. [2018-10-24 14:50:10,376 INFO L168 Benchmark]: RCFGBuilder took 16969.75 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 296.7 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -395.7 MB). Peak memory consumption was 853.3 MB. Max. memory is 7.1 GB. [2018-10-24 14:50:10,378 INFO L168 Benchmark]: TraceAbstraction took 216765.08 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.5 GB in the beginning and 955.0 MB in the end (delta: 1.5 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 14:50:10,387 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3736.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 391.1 MB). Peak memory consumption was 391.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1123.25 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 874.0 MB). Free memory was 1.0 GB in the beginning and 2.2 GB in the end (delta: -1.2 GB). Peak memory consumption was 117.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 957.80 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 111.9 MB). Peak memory consumption was 111.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 16969.75 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 296.7 MB). Free memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: -395.7 MB). Peak memory consumption was 853.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216765.08 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.5 GB in the beginning and 955.0 MB in the end (delta: 1.5 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 40). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 1749 locations, 1 error locations. TIMEOUT Result, 216.6s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 203.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 15395 SDtfs, 42588 SDslu, 3931 SDs, 0 SdLazy, 83904 SolverSat, 22294 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 172.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 725 GetRequests, 693 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163335occurred in iteration=7, 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: 6.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 23714 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 3258 NumberOfCodeBlocks, 3258 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3248 ConstructedInterpolants, 0 QuantifiedInterpolants, 3126261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 860 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 1011/1080 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown