java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf -i ../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 15:07:32,927 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 15:07:32,929 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 15:07:32,941 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 15:07:32,942 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 15:07:32,943 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 15:07:32,944 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 15:07:32,946 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 15:07:32,948 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 15:07:32,949 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 15:07:32,950 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 15:07:32,950 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 15:07:32,951 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 15:07:32,952 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 15:07:32,953 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 15:07:32,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 15:07:32,955 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 15:07:32,957 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 15:07:32,959 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 15:07:32,961 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 15:07:32,962 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 15:07:32,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 15:07:32,966 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 15:07:32,967 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 15:07:32,967 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 15:07:32,968 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 15:07:32,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 15:07:32,976 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 15:07:32,977 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 15:07:32,978 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 15:07:32,978 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 15:07:32,982 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 15:07:32,982 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 15:07:32,982 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 15:07:32,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 15:07:32,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 15:07:32,984 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-03 15:07:33,003 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 15:07:33,003 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 15:07:33,004 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 15:07:33,004 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 15:07:33,005 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 15:07:33,005 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 15:07:33,005 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 15:07:33,005 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 15:07:33,005 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 15:07:33,006 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 15:07:33,006 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 15:07:33,006 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 15:07:33,006 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 15:07:33,006 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 15:07:33,007 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 15:07:33,007 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 15:07:33,008 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 15:07:33,008 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 15:07:33,008 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 15:07:33,008 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 15:07:33,008 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 15:07:33,009 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 15:07:33,009 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 15:07:33,009 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 15:07:33,009 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 15:07:33,009 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 15:07:33,009 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 15:07:33,010 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 15:07:33,010 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 15:07:33,010 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 15:07:33,010 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 15:07:33,011 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 15:07:33,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 15:07:33,011 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 15:07:33,011 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 15:07:33,011 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 15:07:33,012 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 15:07:33,012 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 15:07:33,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 15:07:33,012 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 15:07:33,012 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 15:07:33,046 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 15:07:33,062 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 15:07:33,068 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 15:07:33,070 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 15:07:33,070 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 15:07:33,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl [2018-12-03 15:07:33,072 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl' [2018-12-03 15:07:33,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 15:07:33,122 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 15:07:33,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 15:07:33,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 15:07:33,123 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 15:07:33,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,162 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 15:07:33,162 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 15:07:33,163 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 15:07:33,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 15:07:33,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 15:07:33,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 15:07:33,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 15:07:33,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... [2018-12-03 15:07:33,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 15:07:33,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 15:07:33,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 15:07:33,201 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 15:07:33,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-12-03 15:07:33,271 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-03 15:07:33,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 15:07:33,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 15:07:33,772 INFO L272 CfgBuilder]: Using library mode [2018-12-03 15:07:33,772 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 15:07:33,773 INFO L202 PluginConnector]: Adding new model DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:07:33 BoogieIcfgContainer [2018-12-03 15:07:33,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 15:07:33,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 15:07:33,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 15:07:33,785 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 15:07:33,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 03:07:33" (1/2) ... [2018-12-03 15:07:33,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6af5dcd7 and model type DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 03:07:33, skipping insertion in model container [2018-12-03 15:07:33,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:07:33" (2/2) ... [2018-12-03 15:07:33,791 INFO L112 eAbstractionObserver]: Analyzing ICFG DraegerElevator-FSEN2007.bpl [2018-12-03 15:07:33,813 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 15:07:33,827 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 15:07:33,848 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 15:07:33,892 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 15:07:33,895 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 15:07:33,895 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 15:07:33,896 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 15:07:33,896 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 15:07:33,896 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 15:07:33,896 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 15:07:33,896 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 15:07:33,917 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-03 15:07:33,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-03 15:07:33,933 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:07:33,934 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2018-12-03 15:07:33,940 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-12-03 15:07:33,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:07:33,947 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-12-03 15:07:33,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:07:34,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:34,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:07:34,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:34,004 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:07:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:07:34,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:34,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:07:34,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-03 15:07:34,091 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:07:34,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 15:07:34,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 15:07:34,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:07:34,111 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2018-12-03 15:07:34,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:07:34,254 INFO L93 Difference]: Finished difference Result 20 states and 34 transitions. [2018-12-03 15:07:34,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 15:07:34,256 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-03 15:07:34,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:07:34,280 INFO L225 Difference]: With dead ends: 20 [2018-12-03 15:07:34,280 INFO L226 Difference]: Without dead ends: 18 [2018-12-03 15:07:34,284 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:07:34,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-03 15:07:34,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-03 15:07:34,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-03 15:07:34,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 32 transitions. [2018-12-03 15:07:34,321 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 32 transitions. Word has length 2 [2018-12-03 15:07:34,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:07:34,322 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 32 transitions. [2018-12-03 15:07:34,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 15:07:34,322 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 32 transitions. [2018-12-03 15:07:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-03 15:07:34,323 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:07:34,324 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 15:07:34,324 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-12-03 15:07:34,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:07:34,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1114754463, now seen corresponding path program 1 times [2018-12-03 15:07:34,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:07:34,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:34,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:07:34,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:34,327 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:07:34,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:07:34,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:34,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:07:34,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 15:07:34,394 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:07:34,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 15:07:34,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 15:07:34,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:07:34,397 INFO L87 Difference]: Start difference. First operand 18 states and 32 transitions. Second operand 3 states. [2018-12-03 15:07:34,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:07:34,512 INFO L93 Difference]: Finished difference Result 40 states and 72 transitions. [2018-12-03 15:07:34,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 15:07:34,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-03 15:07:34,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:07:34,514 INFO L225 Difference]: With dead ends: 40 [2018-12-03 15:07:34,514 INFO L226 Difference]: Without dead ends: 23 [2018-12-03 15:07:34,516 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:07:34,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-03 15:07:34,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-03 15:07:34,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-03 15:07:34,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 37 transitions. [2018-12-03 15:07:34,521 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 37 transitions. Word has length 8 [2018-12-03 15:07:34,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:07:34,522 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 37 transitions. [2018-12-03 15:07:34,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 15:07:34,522 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2018-12-03 15:07:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-03 15:07:34,523 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:07:34,523 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 15:07:34,523 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-12-03 15:07:34,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:07:34,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1172012765, now seen corresponding path program 1 times [2018-12-03 15:07:34,524 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:07:34,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:34,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:07:34,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:34,526 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:07:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:07:34,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:34,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 15:07:34,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 15:07:34,590 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 15:07:34,590 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 15:07:34,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 15:07:34,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:07:34,591 INFO L87 Difference]: Start difference. First operand 23 states and 37 transitions. Second operand 3 states. [2018-12-03 15:07:34,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:07:34,783 INFO L93 Difference]: Finished difference Result 51 states and 82 transitions. [2018-12-03 15:07:34,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 15:07:34,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-03 15:07:34,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:07:34,785 INFO L225 Difference]: With dead ends: 51 [2018-12-03 15:07:34,785 INFO L226 Difference]: Without dead ends: 29 [2018-12-03 15:07:34,786 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 15:07:34,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-03 15:07:34,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-12-03 15:07:34,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-03 15:07:34,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2018-12-03 15:07:34,793 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 8 [2018-12-03 15:07:34,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:07:34,793 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2018-12-03 15:07:34,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 15:07:34,793 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2018-12-03 15:07:34,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 15:07:34,794 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 15:07:34,794 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 15:07:34,795 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-12-03 15:07:34,795 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:07:34,795 INFO L82 PathProgramCache]: Analyzing trace with hash -335334966, now seen corresponding path program 1 times [2018-12-03 15:07:34,795 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 15:07:34,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:34,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:07:34,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 15:07:34,797 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 15:07:34,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:07:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:34,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 15:07:34,977 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 15:07:34,978 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 10 with the following transitions: [2018-12-03 15:07:34,980 INFO L205 CegarAbsIntRunner]: [0], [2], [3], [8], [14], [17], [36], [39], [66] [2018-12-03 15:07:35,021 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 15:07:35,021 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 15:07:35,152 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 15:07:35,154 INFO L272 AbstractInterpreter]: Visited 9 different actions 12 times. Merged at 3 different actions 3 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2018-12-03 15:07:35,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 15:07:35,166 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 15:07:35,166 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 15:07:35,166 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-12-03 15:07:35,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 15:07:35,179 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 15:07:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 15:07:35,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 15:07:35,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:35,236 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 15:07:35,282 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 15:07:35,303 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 15:07:35,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2018-12-03 15:07:35,304 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 15:07:35,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 15:07:35,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 15:07:35,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-03 15:07:35,305 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 6 states. [2018-12-03 15:07:35,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 15:07:35,962 INFO L93 Difference]: Finished difference Result 52 states and 79 transitions. [2018-12-03 15:07:35,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 15:07:35,963 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-12-03 15:07:35,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 15:07:35,963 INFO L225 Difference]: With dead ends: 52 [2018-12-03 15:07:35,963 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 15:07:35,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-03 15:07:35,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 15:07:35,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 15:07:35,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 15:07:35,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 15:07:35,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-12-03 15:07:35,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 15:07:35,967 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 15:07:35,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 15:07:35,967 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 15:07:35,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 15:07:35,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 15:07:36,132 WARN L180 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2018-12-03 15:07:36,136 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 1 60) no Hoare annotation was computed. [2018-12-03 15:07:36,136 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2018-12-03 15:07:36,136 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 57) no Hoare annotation was computed. [2018-12-03 15:07:36,136 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 45) no Hoare annotation was computed. [2018-12-03 15:07:36,136 INFO L444 ceAbstractionStarter]: At program point L48(lines 9 59) the Hoare annotation is: (let ((.cse0 (<= main_input main_max)) (.cse1 (<= main_current main_max))) (or (and .cse0 .cse1 (<= main_req main_max)) (and .cse0 .cse1 (= main_pc 0)))) [2018-12-03 15:07:36,137 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 44) no Hoare annotation was computed. [2018-12-03 15:07:36,137 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 31) no Hoare annotation was computed. [2018-12-03 15:07:36,137 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-12-03 15:07:36,137 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 13 32) no Hoare annotation was computed. [2018-12-03 15:07:36,137 INFO L448 ceAbstractionStarter]: For program point L9-1(lines 1 60) no Hoare annotation was computed. [2018-12-03 15:07:36,137 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 1 60) no Hoare annotation was computed. [2018-12-03 15:07:36,137 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 31) no Hoare annotation was computed. [2018-12-03 15:07:36,137 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINVARIANTandASSERT(line 10) no Hoare annotation was computed. [2018-12-03 15:07:36,138 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 44) no Hoare annotation was computed. [2018-12-03 15:07:36,138 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 58) no Hoare annotation was computed. [2018-12-03 15:07:36,148 INFO L202 PluginConnector]: Adding new model DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 03:07:36 BoogieIcfgContainer [2018-12-03 15:07:36,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 15:07:36,149 INFO L168 Benchmark]: Toolchain (without parser) took 3028.57 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-12-03 15:07:36,150 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.29 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. [2018-12-03 15:07:36,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.88 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. [2018-12-03 15:07:36,151 INFO L168 Benchmark]: Boogie Preprocessor took 31.36 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. [2018-12-03 15:07:36,152 INFO L168 Benchmark]: RCFGBuilder took 574.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 15:07:36,152 INFO L168 Benchmark]: TraceAbstraction took 2371.81 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: 87.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2018-12-03 15:07:36,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.29 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. * Boogie Procedure Inliner took 42.88 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. * Boogie Preprocessor took 31.36 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. * RCFGBuilder took 574.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2371.81 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: 87.3 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: loop invariant is valid and assertion always holds For all program executions holds that loop invariant is valid and assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: ((input <= max && current <= max) && req <= max) || ((input <= max && current <= max) && pc == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. SAFE Result, 2.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 70 SDtfs, 120 SDslu, 28 SDs, 0 SdLazy, 93 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 11 NumberOfFragments, 21 HoareAnnotationTreeSize, 1 FomulaSimplifications, 121 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 817 SizeOfPredicates, 3 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 2/5 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...