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/loops/matrix_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 11:45:57,671 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 11:45:57,673 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 11:45:57,685 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 11:45:57,686 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 11:45:57,687 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 11:45:57,689 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 11:45:57,691 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 11:45:57,694 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 11:45:57,696 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 11:45:57,697 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 11:45:57,698 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 11:45:57,706 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 11:45:57,707 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 11:45:57,708 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 11:45:57,712 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 11:45:57,713 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 11:45:57,714 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 11:45:57,721 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 11:45:57,725 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 11:45:57,727 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 11:45:57,728 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 11:45:57,731 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 11:45:57,732 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 11:45:57,735 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 11:45:57,736 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 11:45:57,737 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 11:45:57,739 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 11:45:57,740 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 11:45:57,741 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 11:45:57,742 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 11:45:57,742 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 11:45:57,743 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 11:45:57,745 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 11:45:57,746 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 11:45:57,747 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 11:45:57,747 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 11:45:57,777 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 11:45:57,777 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 11:45:57,778 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 11:45:57,779 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-24 11:45:57,782 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-24 11:45:57,782 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-24 11:45:57,783 INFO L133 SettingsManager]: * Use SBE=true [2018-10-24 11:45:57,783 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 11:45:57,783 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 11:45:57,783 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 11:45:57,783 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 11:45:57,784 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 11:45:57,784 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 11:45:57,784 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 11:45:57,784 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 11:45:57,784 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 11:45:57,785 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 11:45:57,785 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 11:45:57,785 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 11:45:57,785 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 11:45:57,785 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 11:45:57,786 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 11:45:57,786 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 11:45:57,786 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-24 11:45:57,786 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 11:45:57,786 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 11:45:57,787 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 11:45:57,787 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 11:45:57,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 11:45:57,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 11:45:57,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 11:45:57,866 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 11:45:57,866 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 11:45:57,867 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i [2018-10-24 11:45:57,924 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3b2476ab4/ceefb8aadeec42e59055dcbd94351392/FLAGdfcd74865 [2018-10-24 11:45:58,365 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 11:45:58,366 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix_true-unreach-call_true-termination.i [2018-10-24 11:45:58,372 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3b2476ab4/ceefb8aadeec42e59055dcbd94351392/FLAGdfcd74865 [2018-10-24 11:45:58,387 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3b2476ab4/ceefb8aadeec42e59055dcbd94351392 [2018-10-24 11:45:58,397 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 11:45:58,398 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 11:45:58,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 11:45:58,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 11:45:58,403 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 11:45:58,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bedfbfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58, skipping insertion in model container [2018-10-24 11:45:58,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 11:45:58,443 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 11:45:58,674 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:45:58,678 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 11:45:58,701 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 11:45:58,721 INFO L193 MainTranslator]: Completed translation [2018-10-24 11:45:58,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58 WrapperNode [2018-10-24 11:45:58,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 11:45:58,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 11:45:58,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 11:45:58,723 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 11:45:58,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 11:45:58,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 11:45:58,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 11:45:58,764 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 11:45:58,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,779 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (1/1) ... [2018-10-24 11:45:58,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 11:45:58,788 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 11:45:58,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 11:45:58,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 11:45:58,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (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 11:45:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 11:45:58,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 11:45:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-10-24 11:45:58,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-10-24 11:45:59,329 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 11:45:59,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:45:59 BoogieIcfgContainer [2018-10-24 11:45:59,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 11:45:59,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 11:45:59,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 11:45:59,334 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 11:45:59,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:45:58" (1/3) ... [2018-10-24 11:45:59,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d094586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:45:59, skipping insertion in model container [2018-10-24 11:45:59,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:45:58" (2/3) ... [2018-10-24 11:45:59,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d094586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:45:59, skipping insertion in model container [2018-10-24 11:45:59,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:45:59" (3/3) ... [2018-10-24 11:45:59,338 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix_true-unreach-call_true-termination.i [2018-10-24 11:45:59,347 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 11:45:59,355 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 11:45:59,373 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 11:45:59,407 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-24 11:45:59,408 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 11:45:59,408 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 11:45:59,408 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 11:45:59,408 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 11:45:59,408 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 11:45:59,409 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 11:45:59,409 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 11:45:59,409 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 11:45:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-24 11:45:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-10-24 11:45:59,430 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:45:59,431 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:45:59,433 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:45:59,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:45:59,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1834486276, now seen corresponding path program 1 times [2018-10-24 11:45:59,440 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:45:59,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:45:59,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:45:59,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:45:59,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:45:59,515 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-24 11:45:59,516 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-24 11:45:59,516 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-24 11:45:59,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:45:59,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:45:59,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:45:59,567 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 11:45:59,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:45:59,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-24 11:45:59,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-24 11:45:59,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-24 11:45:59,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:45:59,607 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2018-10-24 11:45:59,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:45:59,626 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2018-10-24 11:45:59,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-24 11:45:59,627 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2018-10-24 11:45:59,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:45:59,640 INFO L225 Difference]: With dead ends: 44 [2018-10-24 11:45:59,640 INFO L226 Difference]: Without dead ends: 17 [2018-10-24 11:45:59,644 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-24 11:45:59,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-10-24 11:45:59,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-10-24 11:45:59,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-10-24 11:45:59,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-10-24 11:45:59,675 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 7 [2018-10-24 11:45:59,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:45:59,676 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-10-24 11:45:59,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-24 11:45:59,676 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-10-24 11:45:59,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-10-24 11:45:59,677 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:45:59,677 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:45:59,677 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:45:59,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:45:59,678 INFO L82 PathProgramCache]: Analyzing trace with hash 148810377, now seen corresponding path program 1 times [2018-10-24 11:45:59,678 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:45:59,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:45:59,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:45:59,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:45:59,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:45:59,684 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-24 11:45:59,684 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-24 11:45:59,685 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 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-24 11:45:59,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:45:59,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:45:59,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:45:59,793 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 11:45:59,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:45:59,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 11:45:59,815 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 11:45:59,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 11:45:59,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 11:45:59,815 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-10-24 11:45:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:45:59,878 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2018-10-24 11:45:59,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 11:45:59,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-10-24 11:45:59,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:45:59,879 INFO L225 Difference]: With dead ends: 32 [2018-10-24 11:45:59,880 INFO L226 Difference]: Without dead ends: 27 [2018-10-24 11:45:59,881 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 11:45:59,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-10-24 11:45:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 19. [2018-10-24 11:45:59,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-10-24 11:45:59,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-10-24 11:45:59,886 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 8 [2018-10-24 11:45:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:45:59,887 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-10-24 11:45:59,887 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 11:45:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-24 11:45:59,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 11:45:59,888 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:45:59,888 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:45:59,888 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:45:59,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:45:59,889 INFO L82 PathProgramCache]: Analyzing trace with hash -50434659, now seen corresponding path program 1 times [2018-10-24 11:45:59,889 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:45:59,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:45:59,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:45:59,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:45:59,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:45:59,894 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-24 11:45:59,894 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-24 11:45:59,894 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-24 11:45:59,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:45:59,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:45:59,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:46:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:46:00,084 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 11:46:00,084 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 11:46:00,085 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 11:46:00,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 11:46:00,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-24 11:46:00,088 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 4 states. [2018-10-24 11:46:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:46:00,366 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-10-24 11:46:00,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 11:46:00,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-10-24 11:46:00,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:46:00,367 INFO L225 Difference]: With dead ends: 49 [2018-10-24 11:46:00,368 INFO L226 Difference]: Without dead ends: 34 [2018-10-24 11:46:00,368 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:46:00,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-10-24 11:46:00,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 21. [2018-10-24 11:46:00,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-10-24 11:46:00,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-10-24 11:46:00,373 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 13 [2018-10-24 11:46:00,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:46:00,374 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-10-24 11:46:00,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 11:46:00,374 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-10-24 11:46:00,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-24 11:46:00,375 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:46:00,375 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:46:00,376 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:46:00,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:46:00,376 INFO L82 PathProgramCache]: Analyzing trace with hash 226287643, now seen corresponding path program 1 times [2018-10-24 11:46:00,376 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:46:00,376 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:46:00,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:46:00,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:46:00,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:46:00,382 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-24 11:46:00,382 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-24 11:46:00,382 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-24 11:46:00,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:46:00,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:46:00,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:46:00,617 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2018-10-24 11:46:00,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-10-24 11:46:00,632 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-24 11:46:00,635 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-24 11:46:00,640 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-24 11:46:00,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2018-10-24 11:46:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:46:00,840 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-24 11:46:00,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-24 11:46:00,841 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 11:46:00,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 11:46:00,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-24 11:46:00,842 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 8 states. [2018-10-24 11:46:01,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:46:01,482 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2018-10-24 11:46:01,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 11:46:01,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-10-24 11:46:01,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:46:01,485 INFO L225 Difference]: With dead ends: 48 [2018-10-24 11:46:01,486 INFO L226 Difference]: Without dead ends: 43 [2018-10-24 11:46:01,487 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-10-24 11:46:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-24 11:46:01,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 29. [2018-10-24 11:46:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-10-24 11:46:01,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2018-10-24 11:46:01,493 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 18 [2018-10-24 11:46:01,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:46:01,494 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2018-10-24 11:46:01,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 11:46:01,494 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2018-10-24 11:46:01,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-24 11:46:01,495 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:46:01,495 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:46:01,496 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:46:01,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:46:01,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1782046456, now seen corresponding path program 1 times [2018-10-24 11:46:01,496 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:46:01,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:46:01,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:46:01,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:46:01,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:46:01,502 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-24 11:46:01,502 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-24 11:46:01,502 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-24 11:46:01,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:46:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 11:46:01,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:46:01,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2018-10-24 11:46:01,716 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-10-24 11:46:01,717 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-24 11:46:01,719 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-24 11:46:01,724 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-24 11:46:01,724 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2018-10-24 11:46:01,751 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:46:01,772 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-24 11:46:01,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-24 11:46:01,773 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 11:46:01,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 11:46:01,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-10-24 11:46:01,774 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand 8 states. [2018-10-24 11:46:02,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:46:02,119 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2018-10-24 11:46:02,120 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 11:46:02,120 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-10-24 11:46:02,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:46:02,121 INFO L225 Difference]: With dead ends: 56 [2018-10-24 11:46:02,122 INFO L226 Difference]: Without dead ends: 51 [2018-10-24 11:46:02,122 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-10-24 11:46:02,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-24 11:46:02,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 31. [2018-10-24 11:46:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-24 11:46:02,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2018-10-24 11:46:02,129 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 20 [2018-10-24 11:46:02,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:46:02,129 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2018-10-24 11:46:02,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 11:46:02,129 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2018-10-24 11:46:02,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-24 11:46:02,130 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:46:02,130 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:46:02,131 INFO L424 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:46:02,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:46:02,131 INFO L82 PathProgramCache]: Analyzing trace with hash -80196515, now seen corresponding path program 2 times [2018-10-24 11:46:02,131 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:46:02,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:46:02,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:46:02,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 11:46:02,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:46:02,136 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-24 11:46:02,137 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-24 11:46:02,137 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-24 11:46:02,152 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-24 11:46:02,175 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-10-24 11:46:02,175 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-24 11:46:02,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:46:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 11:46:02,283 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-24 11:46:02,283 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-10-24 11:46:02,283 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 11:46:02,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 11:46:02,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:46:02,284 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 5 states. [2018-10-24 11:46:02,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:46:02,324 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-10-24 11:46:02,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 11:46:02,331 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-10-24 11:46:02,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:46:02,332 INFO L225 Difference]: With dead ends: 55 [2018-10-24 11:46:02,332 INFO L226 Difference]: Without dead ends: 35 [2018-10-24 11:46:02,333 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-24 11:46:02,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-24 11:46:02,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2018-10-24 11:46:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-10-24 11:46:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2018-10-24 11:46:02,338 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 23 [2018-10-24 11:46:02,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:46:02,339 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2018-10-24 11:46:02,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 11:46:02,339 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2018-10-24 11:46:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-10-24 11:46:02,340 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 11:46:02,340 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 11:46:02,340 INFO L424 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 11:46:02,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 11:46:02,341 INFO L82 PathProgramCache]: Analyzing trace with hash -1475688659, now seen corresponding path program 3 times [2018-10-24 11:46:02,341 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-24 11:46:02,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-24 11:46:02,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:46:02,342 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-24 11:46:02,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 11:46:02,346 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-24 11:46:02,346 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-24 11:46:02,346 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-10-24 11:46:02,357 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-24 11:46:02,384 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-24 11:46:02,385 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-24 11:46:02,387 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 11:46:02,420 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-24 11:46:02,441 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-24 11:46:02,441 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-10-24 11:46:02,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 11:46:02,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 11:46:02,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-24 11:46:02,442 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand 4 states. [2018-10-24 11:46:02,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 11:46:02,501 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-10-24 11:46:02,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 11:46:02,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-10-24 11:46:02,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 11:46:02,502 INFO L225 Difference]: With dead ends: 33 [2018-10-24 11:46:02,502 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 11:46:02,503 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-24 11:46:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 11:46:02,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 11:46:02,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 11:46:02,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 11:46:02,504 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-10-24 11:46:02,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 11:46:02,504 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 11:46:02,504 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 11:46:02,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 11:46:02,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 11:46:02,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 11:46:02,729 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 26) no Hoare annotation was computed. [2018-10-24 11:46:02,729 INFO L425 ceAbstractionStarter]: For program point L19-3(lines 19 26) no Hoare annotation was computed. [2018-10-24 11:46:02,730 INFO L421 ceAbstractionStarter]: At program point L19-4(lines 19 26) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_LIN~0)) (.cse1 (= 1 ULTIMATE.start_main_~N_COL~0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~j~0 0)) (and .cse0 (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) |ULTIMATE.start_main_~#matriz~0.offset|) ULTIMATE.start_main_~maior~0) .cse1 (= ULTIMATE.start_main_~j~0 1) (= ULTIMATE.start_main_~k~0 1)))) [2018-10-24 11:46:02,730 INFO L425 ceAbstractionStarter]: For program point L19-5(lines 19 26) no Hoare annotation was computed. [2018-10-24 11:46:02,730 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 11:46:02,730 INFO L425 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-10-24 11:46:02,730 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-10-24 11:46:02,731 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 11:46:02,731 INFO L425 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-10-24 11:46:02,731 INFO L425 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-10-24 11:46:02,731 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 25) no Hoare annotation was computed. [2018-10-24 11:46:02,731 INFO L425 ceAbstractionStarter]: For program point L20-1(lines 20 26) no Hoare annotation was computed. [2018-10-24 11:46:02,731 INFO L425 ceAbstractionStarter]: For program point L20-3(lines 20 26) no Hoare annotation was computed. [2018-10-24 11:46:02,732 INFO L421 ceAbstractionStarter]: At program point L20-4(lines 20 26) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_LIN~0)) (.cse1 (= 1 ULTIMATE.start_main_~N_COL~0)) (.cse2 (= ULTIMATE.start_main_~j~0 0))) (or (and .cse0 .cse1 (= ULTIMATE.start_main_~k~0 0) .cse2) (and .cse0 .cse1 (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) |ULTIMATE.start_main_~#matriz~0.offset|) ULTIMATE.start_main_~maior~0) (= ULTIMATE.start_main_~k~0 1) .cse2))) [2018-10-24 11:46:02,732 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-10-24 11:46:02,732 INFO L425 ceAbstractionStarter]: For program point L16-1(line 16) no Hoare annotation was computed. [2018-10-24 11:46:02,732 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 11:46:02,732 INFO L428 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-10-24 11:46:02,733 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 11:46:02,733 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-10-24 11:46:02,733 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-10-24 11:46:02,733 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 11:46:02,733 INFO L428 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2018-10-24 11:46:02,741 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:46:02,748 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:46:02,750 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:46:02,751 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:46:02,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:46:02 BoogieIcfgContainer [2018-10-24 11:46:02,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 11:46:02,754 INFO L168 Benchmark]: Toolchain (without parser) took 4356.61 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -530.0 MB). Peak memory consumption was 218.2 MB. Max. memory is 7.1 GB. [2018-10-24 11:46:02,756 INFO L168 Benchmark]: CDTParser took 0.21 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 11:46:02,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-24 11:46:02,758 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.16 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. [2018-10-24 11:46:02,758 INFO L168 Benchmark]: Boogie Preprocessor took 24.81 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. [2018-10-24 11:46:02,759 INFO L168 Benchmark]: RCFGBuilder took 541.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2018-10-24 11:46:02,760 INFO L168 Benchmark]: TraceAbstraction took 3422.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 253.2 MB). Peak memory consumption was 253.2 MB. Max. memory is 7.1 GB. [2018-10-24 11:46:02,765 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 323.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 40.16 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. * Boogie Preprocessor took 24.81 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. * RCFGBuilder took 541.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 748.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -793.8 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3422.36 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 253.2 MB). Peak memory consumption was 253.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2018-10-24 11:46:02,774 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:46:02,775 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((1 == N_LIN && 1 == N_COL) && j == 0) || ((((1 == N_LIN && unknown-#memory_int-unknown[matriz][matriz] <= maior) && 1 == N_COL) && j == 1) && k == 1) - InvariantResult [Line: 20]: Loop Invariant [2018-10-24 11:46:02,775 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-10-24 11:46:02,776 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((1 == N_LIN && 1 == N_COL) && k == 0) && j == 0) || ((((1 == N_LIN && 1 == N_COL) && unknown-#memory_int-unknown[matriz][matriz] <= maior) && k == 1) && j == 0) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 101 SDtfs, 109 SDslu, 170 SDs, 0 SdLazy, 248 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 57 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 67 HoareAnnotationTreeSize, 4 FomulaSimplifications, 65 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 117 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 9598 SizeOfPredicates, 36 NumberOfNonLiveVariables, 433 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 31/43 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...