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_array_compound_exp_cong.epf -i ../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 16:11:08,302 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 16:11:08,304 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 16:11:08,318 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 16:11:08,318 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 16:11:08,319 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 16:11:08,321 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 16:11:08,323 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 16:11:08,325 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 16:11:08,326 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 16:11:08,327 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 16:11:08,327 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 16:11:08,328 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 16:11:08,329 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 16:11:08,331 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 16:11:08,332 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 16:11:08,332 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 16:11:08,334 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 16:11:08,337 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 16:11:08,338 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 16:11:08,339 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 16:11:08,340 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 16:11:08,343 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-12-03 16:11:08,353 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_compound_exp_cong.epf [2018-12-03 16:11:08,368 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 16:11:08,368 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 16:11:08,369 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 16:11:08,369 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 16:11:08,369 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 16:11:08,370 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 16:11:08,370 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 16:11:08,370 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 16:11:08,370 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 16:11:08,371 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 16:11:08,371 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 16:11:08,371 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 16:11:08,371 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 16:11:08,371 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 16:11:08,372 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 16:11:08,372 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 16:11:08,373 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 16:11:08,373 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 16:11:08,373 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 16:11:08,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 16:11:08,374 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 16:11:08,374 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 16:11:08,374 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 16:11:08,374 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 16:11:08,375 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 16:11:08,375 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 16:11:08,375 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 16:11:08,375 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 16:11:08,375 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 16:11:08,376 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 16:11:08,376 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 16:11:08,376 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 16:11:08,376 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 16:11:08,377 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 16:11:08,377 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 16:11:08,377 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 16:11:08,377 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 16:11:08,378 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 16:11:08,378 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 16:11:08,378 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 16:11:08,378 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 16:11:08,410 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 16:11:08,431 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 16:11:08,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 16:11:08,440 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 16:11:08,441 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 16:11:08,442 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl [2018-12-03 16:11:08,442 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/real-life/DraegerElevator-FSEN2007.bpl' [2018-12-03 16:11:08,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 16:11:08,494 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 16:11:08,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 16:11:08,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 16:11:08,496 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 16:11:08,517 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,528 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,535 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 16:11:08,535 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 16:11:08,536 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 16:11:08,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 16:11:08,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 16:11:08,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 16:11:08,540 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 16:11:08,554 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,555 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,555 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,556 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,560 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,566 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,568 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 04:11:08" (1/1) ... [2018-12-03 16:11:08,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 16:11:08,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 16:11:08,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 16:11:08,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 16:11:08,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:11:08" (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 16:11:08,657 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-12-03 16:11:08,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 16:11:08,658 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 16:11:09,192 INFO L272 CfgBuilder]: Using library mode [2018-12-03 16:11:09,192 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 16:11:09,193 INFO L202 PluginConnector]: Adding new model DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:11:09 BoogieIcfgContainer [2018-12-03 16:11:09,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 16:11:09,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 16:11:09,194 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 16:11:09,198 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 16:11:09,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:11:08" (1/2) ... [2018-12-03 16:11:09,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fbfc85d and model type DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:11:09, skipping insertion in model container [2018-12-03 16:11:09,200 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 04:11:09" (2/2) ... [2018-12-03 16:11:09,202 INFO L112 eAbstractionObserver]: Analyzing ICFG DraegerElevator-FSEN2007.bpl [2018-12-03 16:11:09,217 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 16:11:09,232 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 16:11:09,264 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 16:11:09,317 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 16:11:09,317 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 16:11:09,318 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 16:11:09,318 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 16:11:09,318 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 16:11:09,318 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 16:11:09,321 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 16:11:09,321 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 16:11:09,342 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-03 16:11:09,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-03 16:11:09,350 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:11:09,351 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2018-12-03 16:11:09,356 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-12-03 16:11:09,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:11:09,364 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-12-03 16:11:09,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:11:09,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:11:09,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:11:09,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:11:09,426 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:11:09,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:11:09,525 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 16:11:09,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 16:11:09,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-03 16:11:09,529 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 16:11:09,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 16:11:09,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 16:11:09,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 16:11:09,553 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2018-12-03 16:11:09,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:11:09,722 INFO L93 Difference]: Finished difference Result 20 states and 34 transitions. [2018-12-03 16:11:09,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 16:11:09,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-03 16:11:09,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:11:09,737 INFO L225 Difference]: With dead ends: 20 [2018-12-03 16:11:09,738 INFO L226 Difference]: Without dead ends: 18 [2018-12-03 16:11:09,741 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 16:11:09,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-12-03 16:11:09,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-12-03 16:11:09,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-03 16:11:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 32 transitions. [2018-12-03 16:11:09,781 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 32 transitions. Word has length 2 [2018-12-03 16:11:09,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:11:09,782 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 32 transitions. [2018-12-03 16:11:09,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 16:11:09,782 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 32 transitions. [2018-12-03 16:11:09,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-03 16:11:09,783 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:11:09,783 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 16:11:09,783 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-12-03 16:11:09,784 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:11:09,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1114754463, now seen corresponding path program 1 times [2018-12-03 16:11:09,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:11:09,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:11:09,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:11:09,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:11:09,785 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:11:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:11:09,820 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 16:11:09,820 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 16:11:09,820 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-03 16:11:09,820 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 16:11:09,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 16:11:09,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 16:11:09,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 16:11:09,823 INFO L87 Difference]: Start difference. First operand 18 states and 32 transitions. Second operand 3 states. [2018-12-03 16:11:09,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:11:09,907 INFO L93 Difference]: Finished difference Result 40 states and 72 transitions. [2018-12-03 16:11:09,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 16:11:09,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-03 16:11:09,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:11:09,909 INFO L225 Difference]: With dead ends: 40 [2018-12-03 16:11:09,909 INFO L226 Difference]: Without dead ends: 23 [2018-12-03 16:11:09,910 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 16:11:09,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-03 16:11:09,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-03 16:11:09,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-03 16:11:09,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 37 transitions. [2018-12-03 16:11:09,917 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 37 transitions. Word has length 8 [2018-12-03 16:11:09,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:11:09,917 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 37 transitions. [2018-12-03 16:11:09,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 16:11:09,917 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 37 transitions. [2018-12-03 16:11:09,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-03 16:11:09,918 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:11:09,918 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 16:11:09,919 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-12-03 16:11:09,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:11:09,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1172012765, now seen corresponding path program 1 times [2018-12-03 16:11:09,919 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:11:09,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:11:09,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:11:09,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:11:09,921 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:11:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:11:09,965 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 16:11:09,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 16:11:09,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 16:11:09,966 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 16:11:09,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 16:11:09,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 16:11:09,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 16:11:09,968 INFO L87 Difference]: Start difference. First operand 23 states and 37 transitions. Second operand 3 states. [2018-12-03 16:11:10,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:11:10,075 INFO L93 Difference]: Finished difference Result 51 states and 82 transitions. [2018-12-03 16:11:10,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 16:11:10,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-03 16:11:10,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:11:10,078 INFO L225 Difference]: With dead ends: 51 [2018-12-03 16:11:10,078 INFO L226 Difference]: Without dead ends: 29 [2018-12-03 16:11:10,079 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 16:11:10,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-12-03 16:11:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-12-03 16:11:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-03 16:11:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2018-12-03 16:11:10,086 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 8 [2018-12-03 16:11:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:11:10,087 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2018-12-03 16:11:10,087 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 16:11:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2018-12-03 16:11:10,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 16:11:10,088 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:11:10,088 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 16:11:10,088 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINVARIANTandASSERT]=== [2018-12-03 16:11:10,089 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:11:10,089 INFO L82 PathProgramCache]: Analyzing trace with hash -335334966, now seen corresponding path program 1 times [2018-12-03 16:11:10,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:11:10,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:11:10,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:11:10,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:11:10,091 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:11:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:11:10,268 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 16:11:10,269 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:11:10,269 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 16:11:10,270 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 10 with the following transitions: [2018-12-03 16:11:10,272 INFO L205 CegarAbsIntRunner]: [0], [2], [3], [8], [14], [17], [36], [39], [66] [2018-12-03 16:11:10,314 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-03 16:11:10,315 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 16:11:10,446 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 16:11:10,448 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 16:11:10,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:11:10,462 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 16:11:10,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 16:11:10,462 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 16:11:10,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:11:10,476 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 16:11:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:11:10,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 16:11:10,527 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 16:11:10,527 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 16:11:10,589 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 16:11:10,610 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 16:11:10,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2018-12-03 16:11:10,611 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 16:11:10,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-03 16:11:10,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-03 16:11:10,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-03 16:11:10,612 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 6 states. [2018-12-03 16:11:11,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:11:11,094 INFO L93 Difference]: Finished difference Result 52 states and 79 transitions. [2018-12-03 16:11:11,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 16:11:11,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-12-03 16:11:11,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:11:11,098 INFO L225 Difference]: With dead ends: 52 [2018-12-03 16:11:11,098 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 16:11:11,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-12-03 16:11:11,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 16:11:11,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 16:11:11,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 16:11:11,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 16:11:11,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-12-03 16:11:11,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:11:11,101 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 16:11:11,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-03 16:11:11,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 16:11:11,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 16:11:11,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 16:11:11,316 WARN L180 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2018-12-03 16:11:11,319 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 1 60) no Hoare annotation was computed. [2018-12-03 16:11:11,319 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 31) no Hoare annotation was computed. [2018-12-03 16:11:11,319 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 57) no Hoare annotation was computed. [2018-12-03 16:11:11,319 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 45) no Hoare annotation was computed. [2018-12-03 16:11:11,320 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 16:11:11,320 INFO L448 ceAbstractionStarter]: For program point L36(lines 36 44) no Hoare annotation was computed. [2018-12-03 16:11:11,320 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 31) no Hoare annotation was computed. [2018-12-03 16:11:11,320 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-12-03 16:11:11,320 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINVARIANTandASSERT(line 10) no Hoare annotation was computed. [2018-12-03 16:11:11,321 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 13 32) no Hoare annotation was computed. [2018-12-03 16:11:11,321 INFO L448 ceAbstractionStarter]: For program point L9-1(lines 1 60) no Hoare annotation was computed. [2018-12-03 16:11:11,321 INFO L448 ceAbstractionStarter]: For program point mainENTRY(lines 1 60) no Hoare annotation was computed. [2018-12-03 16:11:11,321 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 31) no Hoare annotation was computed. [2018-12-03 16:11:11,321 INFO L448 ceAbstractionStarter]: For program point L39(lines 39 44) no Hoare annotation was computed. [2018-12-03 16:11:11,321 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 58) no Hoare annotation was computed. [2018-12-03 16:11:11,334 INFO L202 PluginConnector]: Adding new model DraegerElevator-FSEN2007.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:11:11 BoogieIcfgContainer [2018-12-03 16:11:11,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 16:11:11,335 INFO L168 Benchmark]: Toolchain (without parser) took 2842.54 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 16:11:11,336 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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 16:11:11,337 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.78 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 16:11:11,338 INFO L168 Benchmark]: Boogie Preprocessor took 30.10 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 16:11:11,338 INFO L168 Benchmark]: RCFGBuilder took 622.61 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 16:11:11,339 INFO L168 Benchmark]: TraceAbstraction took 2140.47 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: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-12-03 16:11:11,344 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 0.24 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 43.78 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 30.10 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 622.61 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 2140.47 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: 87.2 MB). Peak memory consumption was 87.2 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, 2.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 70 SDtfs, 120 SDslu, 28 SDs, 0 SdLazy, 93 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s 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, 0.3s 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...