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/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 15:29:51,686 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 15:29:51,688 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 15:29:51,699 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 15:29:51,700 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 15:29:51,701 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 15:29:51,702 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 15:29:51,704 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 15:29:51,706 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 15:29:51,707 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 15:29:51,708 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 15:29:51,708 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 15:29:51,709 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 15:29:51,710 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 15:29:51,711 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 15:29:51,712 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 15:29:51,713 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 15:29:51,715 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 15:29:51,717 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 15:29:51,718 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 15:29:51,719 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 15:29:51,721 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 15:29:51,723 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 15:29:51,723 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 15:29:51,724 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 15:29:51,725 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 15:29:51,726 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 15:29:51,726 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 15:29:51,727 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 15:29:51,728 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 15:29:51,729 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 15:29:51,729 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 15:29:51,730 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 15:29:51,730 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 15:29:51,731 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 15:29:51,732 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 15:29:51,732 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 15:29:51,752 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 15:29:51,752 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 15:29:51,753 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 15:29:51,753 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 15:29:51,753 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 15:29:51,753 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 15:29:51,754 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 15:29:51,754 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 15:29:51,754 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 15:29:51,754 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 15:29:51,754 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 15:29:51,755 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 15:29:51,755 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 15:29:51,755 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 15:29:51,756 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 15:29:51,756 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 15:29:51,756 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 15:29:51,756 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 15:29:51,756 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 15:29:51,757 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 15:29:51,757 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 15:29:51,757 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 15:29:51,757 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 15:29:51,757 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 15:29:51,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 15:29:51,758 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 15:29:51,758 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 15:29:51,758 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 15:29:51,758 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 15:29:51,758 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 15:29:51,759 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 15:29:51,759 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 15:29:51,759 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 15:29:51,759 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 15:29:51,816 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 15:29:51,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 15:29:51,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 15:29:51,834 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 15:29:51,834 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 15:29:51,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-10-27 15:29:51,895 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d6361ed08/779a9da23f9d4e79bda39fea88ab7d2c/FLAG2f223c826 [2018-10-27 15:29:52,374 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 15:29:52,376 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum_array_true-unreach-call.i [2018-10-27 15:29:52,385 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d6361ed08/779a9da23f9d4e79bda39fea88ab7d2c/FLAG2f223c826 [2018-10-27 15:29:52,404 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d6361ed08/779a9da23f9d4e79bda39fea88ab7d2c [2018-10-27 15:29:52,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 15:29:52,420 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 15:29:52,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 15:29:52,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 15:29:52,428 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 15:29:52,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68109397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52, skipping insertion in model container [2018-10-27 15:29:52,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 15:29:52,466 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 15:29:52,668 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 15:29:52,673 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 15:29:52,707 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 15:29:52,729 INFO L193 MainTranslator]: Completed translation [2018-10-27 15:29:52,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52 WrapperNode [2018-10-27 15:29:52,729 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 15:29:52,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 15:29:52,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 15:29:52,730 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 15:29:52,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,750 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 15:29:52,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 15:29:52,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 15:29:52,780 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 15:29:52,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (1/1) ... [2018-10-27 15:29:52,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 15:29:52,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 15:29:52,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 15:29:52,815 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 15:29:52,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (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 [2018-10-27 15:29:52,956 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 15:29:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 15:29:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 15:29:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 15:29:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 15:29:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 15:29:52,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 15:29:52,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 15:29:53,507 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 15:29:53,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:29:53 BoogieIcfgContainer [2018-10-27 15:29:53,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 15:29:53,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 15:29:53,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 15:29:53,512 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 15:29:53,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:29:52" (1/3) ... [2018-10-27 15:29:53,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4634c5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:29:53, skipping insertion in model container [2018-10-27 15:29:53,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:29:52" (2/3) ... [2018-10-27 15:29:53,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4634c5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:29:53, skipping insertion in model container [2018-10-27 15:29:53,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:29:53" (3/3) ... [2018-10-27 15:29:53,516 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array_true-unreach-call.i [2018-10-27 15:29:53,526 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 15:29:53,534 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 15:29:53,551 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 15:29:53,586 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 15:29:53,586 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 15:29:53,587 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 15:29:53,587 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 15:29:53,587 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 15:29:53,587 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 15:29:53,587 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 15:29:53,588 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 15:29:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-10-27 15:29:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 15:29:53,616 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 15:29:53,617 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 15:29:53,619 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 15:29:53,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:29:53,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1480294570, now seen corresponding path program 1 times [2018-10-27 15:29:53,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 15:29:53,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:29:53,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 15:29:53,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:29:53,674 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 15:29:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:29:53,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 15:29:53,768 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 15:29:53,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 15:29:53,769 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 15:29:53,774 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 15:29:53,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 15:29:53,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 15:29:53,793 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-10-27 15:29:53,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 15:29:53,830 INFO L93 Difference]: Finished difference Result 62 states and 80 transitions. [2018-10-27 15:29:53,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 15:29:53,831 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-10-27 15:29:53,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 15:29:53,840 INFO L225 Difference]: With dead ends: 62 [2018-10-27 15:29:53,840 INFO L226 Difference]: Without dead ends: 31 [2018-10-27 15:29:53,844 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 15:29:53,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-10-27 15:29:53,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-10-27 15:29:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-10-27 15:29:53,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2018-10-27 15:29:53,888 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 18 [2018-10-27 15:29:53,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 15:29:53,889 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2018-10-27 15:29:53,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 15:29:53,889 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2018-10-27 15:29:53,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 15:29:53,890 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 15:29:53,891 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 15:29:53,891 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 15:29:53,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:29:53,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1304153360, now seen corresponding path program 1 times [2018-10-27 15:29:53,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 15:29:53,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:29:53,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 15:29:53,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:29:53,894 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 15:29:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:29:54,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 15:29:54,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 15:29:54,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 15:29:54,211 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 15:29:54,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 15:29:54,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 15:29:54,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 15:29:54,218 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand 4 states. [2018-10-27 15:29:54,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 15:29:54,607 INFO L93 Difference]: Finished difference Result 76 states and 87 transitions. [2018-10-27 15:29:54,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 15:29:54,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-10-27 15:29:54,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 15:29:54,611 INFO L225 Difference]: With dead ends: 76 [2018-10-27 15:29:54,612 INFO L226 Difference]: Without dead ends: 47 [2018-10-27 15:29:54,613 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 15:29:54,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-27 15:29:54,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 37. [2018-10-27 15:29:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-10-27 15:29:54,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2018-10-27 15:29:54,630 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 21 [2018-10-27 15:29:54,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 15:29:54,630 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2018-10-27 15:29:54,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 15:29:54,631 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2018-10-27 15:29:54,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-10-27 15:29:54,633 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 15:29:54,633 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 15:29:54,633 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 15:29:54,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:29:54,634 INFO L82 PathProgramCache]: Analyzing trace with hash -2126407395, now seen corresponding path program 1 times [2018-10-27 15:29:54,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 15:29:54,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:29:54,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 15:29:54,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:29:54,636 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 15:29:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:29:55,368 WARN L179 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-10-27 15:29:55,791 WARN L179 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 31 [2018-10-27 15:29:55,991 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 15:29:55,992 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 15:29:55,992 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 15:29:55,993 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 33 with the following transitions: [2018-10-27 15:29:55,995 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [18], [20], [24], [28], [31], [33], [37], [39], [43], [47], [50], [52], [54], [58], [62], [67], [77], [80], [82], [88], [89], [90], [92] [2018-10-27 15:29:56,036 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 15:29:56,036 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 15:29:56,179 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 15:29:56,757 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 15:29:56,759 INFO L272 AbstractInterpreter]: Visited 29 different actions 165 times. Merged at 14 different actions 112 times. Widened at 3 different actions 12 times. Found 27 fixpoints after 6 different actions. Largest state had 45 variables. [2018-10-27 15:29:56,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:29:56,797 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 15:29:56,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 15:29:56,798 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-10-27 15:29:56,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 15:29:56,811 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 15:29:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:29:56,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 15:29:57,044 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:29:57,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 29 [2018-10-27 15:29:57,165 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 15 [2018-10-27 15:29:57,171 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:29:57,172 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:29:57,174 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-27 15:29:57,175 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,183 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,196 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,197 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:16 [2018-10-27 15:29:57,339 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 15:29:57,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 15:29:57,356 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,383 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,503 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,504 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:13 [2018-10-27 15:29:57,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-10-27 15:29:57,671 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-10-27 15:29:57,672 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,674 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,687 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,688 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:13 [2018-10-27 15:29:57,718 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 31 [2018-10-27 15:29:57,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-10-27 15:29:57,740 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,792 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:57,804 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:34, output treesize:30 [2018-10-27 15:29:58,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2018-10-27 15:29:58,092 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 10 [2018-10-27 15:29:58,092 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:29:58,110 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-10-27 15:29:58,110 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 15:29:58,133 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 6 [2018-10-27 15:29:58,133 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 15:29:58,155 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:58,178 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:29:58,178 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:51, output treesize:6 [2018-10-27 15:29:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 15:29:58,241 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 15:30:11,102 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 299 treesize of output 119 [2018-10-27 15:30:11,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 14 [2018-10-27 15:30:11,203 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:11,286 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 161 treesize of output 117 [2018-10-27 15:30:11,644 WARN L179 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 84 [2018-10-27 15:30:11,653 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2018-10-27 15:30:11,654 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:11,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 44 [2018-10-27 15:30:11,675 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:11,696 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 48 [2018-10-27 15:30:11,698 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:11,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 48 [2018-10-27 15:30:11,714 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:12,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 56 [2018-10-27 15:30:12,063 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:12,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 48 treesize of output 85 [2018-10-27 15:30:12,113 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 8 xjuncts. [2018-10-27 15:30:12,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 42 treesize of output 54 [2018-10-27 15:30:12,133 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:12,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 36 [2018-10-27 15:30:12,415 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 24 treesize of output 40 [2018-10-27 15:30:12,419 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 8 xjuncts. [2018-10-27 15:30:12,478 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-10-27 15:30:12,481 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 39 treesize of output 37 [2018-10-27 15:30:12,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-10-27 15:30:12,486 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:12,500 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:12,507 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2018-10-27 15:30:12,511 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 7 [2018-10-27 15:30:12,512 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:12,523 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:12,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 39 [2018-10-27 15:30:12,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 24 [2018-10-27 15:30:12,542 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:12,568 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 15:30:12,572 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 40 treesize of output 36 [2018-10-27 15:30:12,583 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 14 [2018-10-27 15:30:12,584 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:12,639 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 15:30:12,858 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2018-10-27 15:30:12,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2018-10-27 15:30:12,873 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:12,930 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 21 [2018-10-27 15:30:12,931 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:12,935 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 15 [2018-10-27 15:30:12,936 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:13,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 48 [2018-10-27 15:30:13,016 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 8 xjuncts. [2018-10-27 15:30:13,115 INFO L267 ElimStorePlain]: Start of recursive call 22: 3 dim-1 vars, End of recursive call: and 6 xjuncts. [2018-10-27 15:30:13,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 40 [2018-10-27 15:30:13,137 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-10-27 15:30:13,137 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:13,191 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-10-27 15:30:13,192 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:13,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 26 [2018-10-27 15:30:13,300 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:13,331 INFO L267 ElimStorePlain]: Start of recursive call 27: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-10-27 15:30:13,638 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 8 xjuncts. [2018-10-27 15:30:13,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 65 [2018-10-27 15:30:13,765 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2018-10-27 15:30:13,767 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:13,812 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 23 treesize of output 19 [2018-10-27 15:30:13,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 14 [2018-10-27 15:30:13,847 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:13,854 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 15:30:13,857 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 19 treesize of output 17 [2018-10-27 15:30:13,859 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 1 [2018-10-27 15:30:13,860 INFO L267 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:13,864 INFO L267 ElimStorePlain]: Start of recursive call 35: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:13,909 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:14,004 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 5 xjuncts. [2018-10-27 15:30:14,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 5 xjuncts. [2018-10-27 15:30:14,081 INFO L202 ElimStorePlain]: Needed 36 recursive calls to eliminate 6 variables, input treesize:299, output treesize:48 [2018-10-27 15:30:14,148 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 15:30:14,178 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 15:30:14,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 12] total 22 [2018-10-27 15:30:14,178 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 15:30:14,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-27 15:30:14,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-27 15:30:14,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=362, Unknown=6, NotChecked=0, Total=462 [2018-10-27 15:30:14,181 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand 15 states. [2018-10-27 15:30:14,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 15:30:14,748 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2018-10-27 15:30:14,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-27 15:30:14,750 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 32 [2018-10-27 15:30:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 15:30:14,752 INFO L225 Difference]: With dead ends: 53 [2018-10-27 15:30:14,752 INFO L226 Difference]: Without dead ends: 51 [2018-10-27 15:30:14,753 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=149, Invalid=495, Unknown=6, NotChecked=0, Total=650 [2018-10-27 15:30:14,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-27 15:30:14,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 44. [2018-10-27 15:30:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-27 15:30:14,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2018-10-27 15:30:14,762 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 32 [2018-10-27 15:30:14,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 15:30:14,762 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2018-10-27 15:30:14,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-27 15:30:14,762 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2018-10-27 15:30:14,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-10-27 15:30:14,764 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 15:30:14,764 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 15:30:14,764 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 15:30:14,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:30:14,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1933410342, now seen corresponding path program 1 times [2018-10-27 15:30:14,765 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 15:30:14,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:30:14,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 15:30:14,766 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:30:14,766 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 15:30:14,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:30:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 15:30:15,131 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 15:30:15,131 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 15:30:15,131 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-10-27 15:30:15,131 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [12], [14], [18], [20], [24], [28], [31], [33], [37], [39], [43], [47], [50], [52], [54], [58], [62], [67], [69], [71], [77], [80], [82], [85], [87], [88], [89], [90], [92], [93] [2018-10-27 15:30:15,134 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 15:30:15,134 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 15:30:15,142 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 15:30:15,489 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 15:30:15,489 INFO L272 AbstractInterpreter]: Visited 34 different actions 258 times. Merged at 19 different actions 152 times. Widened at 4 different actions 16 times. Found 28 fixpoints after 7 different actions. Largest state had 46 variables. [2018-10-27 15:30:15,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:30:15,535 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 15:30:15,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 15:30:15,535 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG 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 [2018-10-27 15:30:15,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 15:30:15,549 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 15:30:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:30:15,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 15:30:15,695 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 15:30:15,695 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 15:30:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 15:30:15,874 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 15:30:15,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2018-10-27 15:30:15,874 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 15:30:15,875 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 15:30:15,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 15:30:15,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-10-27 15:30:15,876 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 8 states. [2018-10-27 15:30:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 15:30:16,208 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2018-10-27 15:30:16,208 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 15:30:16,208 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2018-10-27 15:30:16,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 15:30:16,210 INFO L225 Difference]: With dead ends: 117 [2018-10-27 15:30:16,210 INFO L226 Difference]: Without dead ends: 67 [2018-10-27 15:30:16,211 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2018-10-27 15:30:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2018-10-27 15:30:16,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 55. [2018-10-27 15:30:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-10-27 15:30:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-10-27 15:30:16,220 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 41 [2018-10-27 15:30:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 15:30:16,220 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-10-27 15:30:16,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 15:30:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-10-27 15:30:16,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-27 15:30:16,222 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 15:30:16,222 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-10-27 15:30:16,223 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 15:30:16,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:30:16,223 INFO L82 PathProgramCache]: Analyzing trace with hash -677671225, now seen corresponding path program 2 times [2018-10-27 15:30:16,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 15:30:16,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:30:16,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 15:30:16,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:30:16,224 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 15:30:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:30:18,438 WARN L179 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2018-10-27 15:30:19,044 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 33 [2018-10-27 15:30:19,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-27 15:30:19,117 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 15:30:19,117 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 15:30:19,117 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 15:30:19,117 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 15:30:19,118 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 15:30:19,118 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 15:30:19,127 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 15:30:19,127 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-10-27 15:30:19,554 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-10-27 15:30:19,555 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 15:30:19,561 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 15:30:19,599 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:30:19,600 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 29 [2018-10-27 15:30:19,621 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:30:19,622 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:30:19,623 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-10-27 15:30:19,624 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:19,628 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:19,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:19,647 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:29, output treesize:22 [2018-10-27 15:30:19,921 INFO L303 Elim1Store]: Index analysis took 140 ms [2018-10-27 15:30:19,922 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2018-10-27 15:30:19,925 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-10-27 15:30:19,925 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:19,936 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:19,956 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:19,956 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:70, output treesize:66 [2018-10-27 15:30:36,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 61 [2018-10-27 15:30:36,457 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:36,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 34 [2018-10-27 15:30:36,458 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:36,477 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:36,478 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2018-10-27 15:30:36,479 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:36,494 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:36,495 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 16 [2018-10-27 15:30:36,495 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:36,501 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:36,521 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:36,521 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 7 variables, input treesize:99, output treesize:6 [2018-10-27 15:30:36,601 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-27 15:30:36,601 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 15:30:37,014 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2018-10-27 15:30:37,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 93 [2018-10-27 15:30:37,161 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-10-27 15:30:37,175 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 65 [2018-10-27 15:30:37,177 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-10-27 15:30:37,245 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 54 [2018-10-27 15:30:37,246 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:37,300 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:37,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 125 [2018-10-27 15:30:37,357 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 32 xjuncts. [2018-10-27 15:30:37,467 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:37,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 77 treesize of output 91 [2018-10-27 15:30:37,859 WARN L179 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 83 [2018-10-27 15:30:37,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 74 [2018-10-27 15:30:37,895 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 8 xjuncts. [2018-10-27 15:30:38,055 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 71 [2018-10-27 15:30:38,059 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 8 xjuncts. [2018-10-27 15:30:38,230 INFO L267 ElimStorePlain]: Start of recursive call 6: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:38,267 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 259 treesize of output 239 [2018-10-27 15:30:39,122 WARN L179 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 163 [2018-10-27 15:30:39,154 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:39,258 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:39,286 INFO L303 Elim1Store]: Index analysis took 161 ms [2018-10-27 15:30:39,364 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 179 [2018-10-27 15:30:39,365 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:30:39,538 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 256 xjuncts. [2018-10-27 15:30:42,320 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:42,364 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:42,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 179 [2018-10-27 15:30:42,472 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:30:42,640 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 256 xjuncts. [2018-10-27 15:30:46,095 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:46,111 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:46,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 114 treesize of output 176 [2018-10-27 15:30:46,231 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:30:46,337 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 256 xjuncts. [2018-10-27 15:30:48,613 INFO L267 ElimStorePlain]: Start of recursive call 9: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:48,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 138 [2018-10-27 15:30:48,900 WARN L179 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-27 15:30:48,905 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:48,908 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 73 [2018-10-27 15:30:48,909 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-10-27 15:30:49,035 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 84 [2018-10-27 15:30:49,036 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:49,074 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:30:49,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 71 [2018-10-27 15:30:49,078 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 15:30:49,455 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 41 [2018-10-27 15:30:49,456 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:49,512 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:30:49,520 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:30:49,625 INFO L303 Elim1Store]: Index analysis took 116 ms [2018-10-27 15:30:49,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 81 [2018-10-27 15:30:49,632 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:49,636 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:49,642 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:49,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 125 [2018-10-27 15:30:49,687 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 16 xjuncts. [2018-10-27 15:30:49,880 INFO L267 ElimStorePlain]: Start of recursive call 13: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 15:30:49,910 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 201 treesize of output 193 [2018-10-27 15:30:50,547 WARN L179 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 149 [2018-10-27 15:30:50,560 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:50,570 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:50,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 98 treesize of output 184 [2018-10-27 15:30:50,644 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:30:50,742 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 256 xjuncts. [2018-10-27 15:30:53,391 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:53,396 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:53,509 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 95 treesize of output 181 [2018-10-27 15:30:53,510 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:30:53,604 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 256 xjuncts. [2018-10-27 15:30:55,816 INFO L267 ElimStorePlain]: Start of recursive call 20: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:55,820 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 89 [2018-10-27 15:30:55,858 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:30:55,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 38 [2018-10-27 15:30:55,876 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 2 xjuncts. [2018-10-27 15:30:56,012 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:30:56,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 204 treesize of output 194 [2018-10-27 15:30:56,594 WARN L179 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 132 [2018-10-27 15:30:56,643 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:56,646 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:56,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 102 treesize of output 140 [2018-10-27 15:30:56,694 INFO L267 ElimStorePlain]: Start of recursive call 26: 14 dim-0 vars, End of recursive call: 14 dim-0 vars, and 16 xjuncts. [2018-10-27 15:30:57,090 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:57,100 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:57,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 99 treesize of output 181 [2018-10-27 15:30:57,179 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:30:57,264 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 256 xjuncts. [2018-10-27 15:30:59,578 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:59,590 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:30:59,670 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 96 treesize of output 178 [2018-10-27 15:30:59,670 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:30:59,772 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 256 xjuncts. [2018-10-27 15:31:01,735 INFO L267 ElimStorePlain]: Start of recursive call 25: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:01,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 221 treesize of output 195 [2018-10-27 15:31:01,993 WARN L179 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2018-10-27 15:31:01,999 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:31:02,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 88 [2018-10-27 15:31:02,001 INFO L267 ElimStorePlain]: Start of recursive call 30: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 15:31:02,005 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:02,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 99 [2018-10-27 15:31:02,008 INFO L267 ElimStorePlain]: Start of recursive call 31: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 15:31:02,021 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 116 treesize of output 104 [2018-10-27 15:31:02,023 INFO L267 ElimStorePlain]: Start of recursive call 32: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-10-27 15:31:02,170 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:02,173 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:02,178 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:02,179 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:02,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 113 treesize of output 177 [2018-10-27 15:31:02,240 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-10-27 15:31:02,258 INFO L267 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 64 xjuncts. [2018-10-27 15:31:02,322 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:31:02,378 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:31:02,406 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:31:02,418 INFO L303 Elim1Store]: Index analysis took 159 ms [2018-10-27 15:31:02,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 106 [2018-10-27 15:31:02,427 INFO L267 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2018-10-27 15:31:02,742 INFO L267 ElimStorePlain]: Start of recursive call 29: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:02,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2018-10-27 15:31:02,792 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 35 [2018-10-27 15:31:02,793 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-10-27 15:31:02,821 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 24 [2018-10-27 15:31:02,822 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 2 xjuncts. [2018-10-27 15:31:02,837 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-10-27 15:31:02,861 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 138 treesize of output 132 [2018-10-27 15:31:03,083 WARN L179 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2018-10-27 15:31:03,087 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:03,089 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 74 [2018-10-27 15:31:03,090 INFO L267 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:03,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 64 [2018-10-27 15:31:03,264 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:03,313 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:03,337 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 88 [2018-10-27 15:31:03,339 INFO L267 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 4 xjuncts. [2018-10-27 15:31:03,587 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:03,596 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:03,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 69 treesize of output 175 [2018-10-27 15:31:03,669 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:31:03,727 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 256 xjuncts. [2018-10-27 15:31:05,580 INFO L267 ElimStorePlain]: Start of recursive call 38: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:05,619 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2018-10-27 15:31:06,049 WARN L179 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 116 [2018-10-27 15:31:06,078 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:06,190 INFO L303 Elim1Store]: Index analysis took 139 ms [2018-10-27 15:31:06,341 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 87 [2018-10-27 15:31:06,343 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 4 xjuncts. [2018-10-27 15:31:06,699 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:06,710 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:06,785 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 66 treesize of output 172 [2018-10-27 15:31:06,785 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:31:06,851 INFO L267 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 256 xjuncts. [2018-10-27 15:31:08,928 INFO L267 ElimStorePlain]: Start of recursive call 43: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:08,945 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 152 treesize of output 138 [2018-10-27 15:31:09,125 WARN L179 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-27 15:31:09,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 100 treesize of output 88 [2018-10-27 15:31:09,140 INFO L267 ElimStorePlain]: Start of recursive call 47: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-10-27 15:31:09,151 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:31:09,153 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 72 [2018-10-27 15:31:09,154 INFO L267 ElimStorePlain]: Start of recursive call 48: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 15:31:09,157 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:09,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 77 [2018-10-27 15:31:09,160 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 15:31:09,287 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:31:09,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 52 [2018-10-27 15:31:09,289 INFO L267 ElimStorePlain]: Start of recursive call 50: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-10-27 15:31:09,293 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:09,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 51 [2018-10-27 15:31:09,295 INFO L267 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:09,299 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:09,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 56 [2018-10-27 15:31:09,302 INFO L267 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:09,314 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 57 [2018-10-27 15:31:09,315 INFO L267 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 2 xjuncts. [2018-10-27 15:31:09,398 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:31:09,400 INFO L700 Elim1Store]: detected not equals via solver [2018-10-27 15:31:09,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 76 treesize of output 81 [2018-10-27 15:31:09,418 INFO L267 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 2 xjuncts. [2018-10-27 15:31:09,424 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:09,425 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:09,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 83 treesize of output 125 [2018-10-27 15:31:09,471 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 16 xjuncts. [2018-10-27 15:31:09,537 INFO L267 ElimStorePlain]: Start of recursive call 46: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:09,556 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 59 [2018-10-27 15:31:09,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2018-10-27 15:31:09,626 INFO L267 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:09,679 INFO L267 ElimStorePlain]: Start of recursive call 56: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:09,685 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 80 [2018-10-27 15:31:09,729 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 35 [2018-10-27 15:31:09,730 INFO L267 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 2 xjuncts. [2018-10-27 15:31:09,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 22 [2018-10-27 15:31:09,826 INFO L267 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:09,835 INFO L267 ElimStorePlain]: Start of recursive call 58: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:09,852 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 206 treesize of output 182 [2018-10-27 15:31:09,997 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2018-10-27 15:31:10,004 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,004 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,006 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,012 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 100 [2018-10-27 15:31:10,013 INFO L267 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:10,116 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,120 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,122 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,126 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,210 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 100 treesize of output 176 [2018-10-27 15:31:10,211 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-10-27 15:31:10,225 INFO L267 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 64 xjuncts. [2018-10-27 15:31:10,473 INFO L267 ElimStorePlain]: Start of recursive call 61: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:10,499 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 127 treesize of output 121 [2018-10-27 15:31:10,689 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2018-10-27 15:31:10,695 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,698 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:10,735 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 61 treesize of output 119 [2018-10-27 15:31:10,743 INFO L267 ElimStorePlain]: Start of recursive call 65: 11 dim-0 vars, End of recursive call: 11 dim-0 vars, and 16 xjuncts. [2018-10-27 15:31:10,970 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-10-27 15:31:10,970 INFO L267 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:10,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-10-27 15:31:10,975 INFO L267 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:10,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 28 [2018-10-27 15:31:10,978 INFO L267 ElimStorePlain]: Start of recursive call 68: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:10,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 30 [2018-10-27 15:31:10,981 INFO L267 ElimStorePlain]: Start of recursive call 69: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:11,103 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:11,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 53 [2018-10-27 15:31:11,106 INFO L267 ElimStorePlain]: Start of recursive call 70: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:11,142 INFO L267 ElimStorePlain]: Start of recursive call 64: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:11,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 193 treesize of output 177 [2018-10-27 15:31:11,417 WARN L179 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 86 [2018-10-27 15:31:11,422 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:11,427 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:11,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 87 treesize of output 173 [2018-10-27 15:31:11,516 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:31:11,590 INFO L267 ElimStorePlain]: Start of recursive call 72: End of recursive call: and 256 xjuncts. [2018-10-27 15:31:13,680 INFO L267 ElimStorePlain]: Start of recursive call 71: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:13,695 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 97 treesize of output 93 [2018-10-27 15:31:13,824 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-10-27 15:31:13,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 65 [2018-10-27 15:31:13,841 INFO L267 ElimStorePlain]: Start of recursive call 74: End of recursive call: and 2 xjuncts. [2018-10-27 15:31:13,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 52 [2018-10-27 15:31:13,899 INFO L267 ElimStorePlain]: Start of recursive call 75: End of recursive call: and 2 xjuncts. [2018-10-27 15:31:13,935 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:13,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 125 [2018-10-27 15:31:13,995 INFO L267 ElimStorePlain]: Start of recursive call 76: End of recursive call: and 32 xjuncts. [2018-10-27 15:31:14,091 INFO L267 ElimStorePlain]: Start of recursive call 73: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:14,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 127 treesize of output 121 [2018-10-27 15:31:14,303 WARN L179 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2018-10-27 15:31:14,307 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:14,328 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 80 [2018-10-27 15:31:14,330 INFO L267 ElimStorePlain]: Start of recursive call 78: End of recursive call: and 4 xjuncts. [2018-10-27 15:31:14,444 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:14,453 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:14,546 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 58 treesize of output 164 [2018-10-27 15:31:14,547 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:31:14,598 INFO L267 ElimStorePlain]: Start of recursive call 79: End of recursive call: and 256 xjuncts. [2018-10-27 15:31:16,473 INFO L267 ElimStorePlain]: Start of recursive call 77: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:16,501 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 75 [2018-10-27 15:31:16,652 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2018-10-27 15:31:16,682 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 63 [2018-10-27 15:31:16,684 INFO L267 ElimStorePlain]: Start of recursive call 81: End of recursive call: and 8 xjuncts. [2018-10-27 15:31:16,781 INFO L267 ElimStorePlain]: Start of recursive call 80: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:16,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 75 [2018-10-27 15:31:16,976 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2018-10-27 15:31:17,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 63 [2018-10-27 15:31:17,038 INFO L267 ElimStorePlain]: Start of recursive call 83: End of recursive call: and 8 xjuncts. [2018-10-27 15:31:17,132 INFO L267 ElimStorePlain]: Start of recursive call 82: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:17,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 137 [2018-10-27 15:31:17,592 WARN L179 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 116 [2018-10-27 15:31:17,597 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 67 [2018-10-27 15:31:17,597 INFO L267 ElimStorePlain]: Start of recursive call 85: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:17,751 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:17,762 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:17,835 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 69 treesize of output 175 [2018-10-27 15:31:17,835 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:31:17,893 INFO L267 ElimStorePlain]: Start of recursive call 86: End of recursive call: and 256 xjuncts. [2018-10-27 15:31:20,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 61 [2018-10-27 15:31:20,145 INFO L267 ElimStorePlain]: Start of recursive call 87: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:20,506 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:20,520 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:20,607 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 66 treesize of output 172 [2018-10-27 15:31:20,608 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2018-10-27 15:31:20,658 INFO L267 ElimStorePlain]: Start of recursive call 88: End of recursive call: and 256 xjuncts. [2018-10-27 15:31:22,464 INFO L267 ElimStorePlain]: Start of recursive call 84: 13 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:22,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 196 treesize of output 178 [2018-10-27 15:31:22,740 WARN L179 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2018-10-27 15:31:22,744 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:22,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 81 [2018-10-27 15:31:22,746 INFO L267 ElimStorePlain]: Start of recursive call 90: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:22,829 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:22,836 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:22,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 91 treesize of output 129 [2018-10-27 15:31:22,879 INFO L267 ElimStorePlain]: Start of recursive call 91: 14 dim-0 vars, End of recursive call: 14 dim-0 vars, and 16 xjuncts. [2018-10-27 15:31:23,101 INFO L682 Elim1Store]: detected equality via solver [2018-10-27 15:31:23,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 78 [2018-10-27 15:31:23,104 INFO L267 ElimStorePlain]: Start of recursive call 92: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:23,377 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-10-27 15:31:23,378 INFO L267 ElimStorePlain]: Start of recursive call 93: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:23,381 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-10-27 15:31:23,381 INFO L267 ElimStorePlain]: Start of recursive call 94: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:23,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-10-27 15:31:23,385 INFO L267 ElimStorePlain]: Start of recursive call 95: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:23,387 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 25 [2018-10-27 15:31:23,387 INFO L267 ElimStorePlain]: Start of recursive call 96: End of recursive call: and 1 xjuncts. [2018-10-27 15:31:23,414 INFO L267 ElimStorePlain]: Start of recursive call 89: 8 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-10-27 15:31:23,487 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-10-27 15:31:23,488 INFO L202 ElimStorePlain]: Needed 96 recursive calls to eliminate 3 variables, input treesize:149, output treesize:86 [2018-10-27 15:31:29,266 WARN L179 SmtUtils]: Spent 5.72 s on a formula simplification that was a NOOP. DAG size: 43 [2018-10-27 15:31:39,364 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-10-27 15:31:39,434 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-10-27 15:31:39,455 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 15:31:39,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17, 14] total 37 [2018-10-27 15:31:39,456 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 15:31:39,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-10-27 15:31:39,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-10-27 15:31:39,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1156, Unknown=10, NotChecked=0, Total=1332 [2018-10-27 15:31:39,459 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 28 states. [2018-10-27 15:31:52,261 WARN L179 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2018-10-27 15:31:56,327 WARN L179 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 123 DAG size of output: 72 [2018-10-27 15:32:01,281 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 51 [2018-10-27 15:32:01,604 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2018-10-27 15:32:52,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 15:32:52,694 INFO L93 Difference]: Finished difference Result 152 states and 163 transitions. [2018-10-27 15:32:52,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-27 15:32:52,694 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 52 [2018-10-27 15:32:52,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 15:32:52,696 INFO L225 Difference]: With dead ends: 152 [2018-10-27 15:32:52,696 INFO L226 Difference]: Without dead ends: 79 [2018-10-27 15:32:52,699 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 81 SyntacticMatches, 10 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 867 ImplicationChecksByTransitivity, 58.7s TimeCoverageRelationStatistics Valid=536, Invalid=3353, Unknown=17, NotChecked=0, Total=3906 [2018-10-27 15:32:52,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-10-27 15:32:52,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2018-10-27 15:32:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-10-27 15:32:52,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 75 transitions. [2018-10-27 15:32:52,709 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 75 transitions. Word has length 52 [2018-10-27 15:32:52,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 15:32:52,709 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 75 transitions. [2018-10-27 15:32:52,709 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-10-27 15:32:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 75 transitions. [2018-10-27 15:32:52,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-27 15:32:52,711 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 15:32:52,712 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 15:32:52,712 INFO L424 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 15:32:52,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:32:52,712 INFO L82 PathProgramCache]: Analyzing trace with hash -186809392, now seen corresponding path program 3 times [2018-10-27 15:32:52,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 15:32:52,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:32:52,713 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 15:32:52,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:32:52,713 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 15:32:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 15:32:54,098 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-27 15:32:54,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 15:32:54,098 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 15:32:54,098 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 15:32:54,098 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 15:32:54,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 15:32:54,099 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 15:32:54,106 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2018-10-27 15:32:54,107 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2018-10-27 15:32:54,162 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2018-10-27 15:32:54,162 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 15:32:54,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 15:32:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-10-27 15:32:54,354 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 15:32:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 25 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-10-27 15:32:54,946 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 15:32:54,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 19 [2018-10-27 15:32:54,946 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 15:32:54,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-27 15:32:54,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-27 15:32:54,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-10-27 15:32:54,948 INFO L87 Difference]: Start difference. First operand 72 states and 75 transitions. Second operand 15 states. [2018-10-27 15:32:58,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 15:32:58,724 INFO L93 Difference]: Finished difference Result 128 states and 136 transitions. [2018-10-27 15:32:58,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-27 15:32:58,724 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 69 [2018-10-27 15:32:58,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 15:32:58,727 INFO L225 Difference]: With dead ends: 128 [2018-10-27 15:32:58,727 INFO L226 Difference]: Without dead ends: 100 [2018-10-27 15:32:58,728 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 130 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2018-10-27 15:32:58,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-10-27 15:32:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 75. [2018-10-27 15:32:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2018-10-27 15:32:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2018-10-27 15:32:58,739 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 69 [2018-10-27 15:32:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 15:32:58,739 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2018-10-27 15:32:58,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-27 15:32:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2018-10-27 15:32:58,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-27 15:32:58,741 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 15:32:58,741 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 15:32:58,741 INFO L424 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 15:32:58,742 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 15:32:58,742 INFO L82 PathProgramCache]: Analyzing trace with hash -810085603, now seen corresponding path program 4 times [2018-10-27 15:32:58,742 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 15:32:58,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:32:58,742 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 15:32:58,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 15:32:58,743 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 15:32:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-10-27 15:34:20,206 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1428) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$MixedLAInterpolator.convert(Interpolator.java:1284) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:253) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.mixedPivotLA(Interpolator.java:1474) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.combine(Interpolator.java:359) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$2(Interpolator.java:328) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$CombineInterpolants.walk(Interpolator.java:153) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:919) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getTraceCheck(BaseTaipanRefinementStrategy.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:435) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-27 15:34:20,210 INFO L168 Benchmark]: Toolchain (without parser) took 267791.92 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -760.9 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-27 15:34:20,211 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. [2018-10-27 15:34:20,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.47 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. [2018-10-27 15:34:20,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.64 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. [2018-10-27 15:34:20,212 INFO L168 Benchmark]: Boogie Preprocessor took 34.08 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. [2018-10-27 15:34:20,212 INFO L168 Benchmark]: RCFGBuilder took 693.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2018-10-27 15:34:20,212 INFO L168 Benchmark]: TraceAbstraction took 266700.58 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -4.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-27 15:34:20,215 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 308.47 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 49.64 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 34.08 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 693.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 738.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -767.2 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266700.58 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -4.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1428) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown