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/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired01-BackwardSuccess.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c78c21b [2018-12-03 16:50:21,038 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 16:50:21,040 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 16:50:21,052 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 16:50:21,052 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 16:50:21,053 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 16:50:21,054 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 16:50:21,056 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 16:50:21,058 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 16:50:21,059 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 16:50:21,060 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 16:50:21,060 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 16:50:21,061 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 16:50:21,062 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 16:50:21,063 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 16:50:21,064 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 16:50:21,065 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 16:50:21,068 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 16:50:21,070 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 16:50:21,071 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 16:50:21,072 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 16:50:21,074 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 16:50:21,080 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 16:50:21,080 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 16:50:21,080 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 16:50:21,081 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 16:50:21,082 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 16:50:21,084 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 16:50:21,085 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 16:50:21,086 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 16:50:21,086 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 16:50:21,087 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 16:50:21,087 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 16:50:21,087 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 16:50:21,088 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 16:50:21,089 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 16:50:21,089 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 16:50:21,117 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 16:50:21,117 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 16:50:21,118 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-03 16:50:21,118 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-03 16:50:21,120 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 16:50:21,120 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 16:50:21,120 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 16:50:21,120 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 16:50:21,120 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 16:50:21,120 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 16:50:21,121 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 16:50:21,121 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-03 16:50:21,121 INFO L133 SettingsManager]: * Log string format=TERM [2018-12-03 16:50:21,121 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 16:50:21,121 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 16:50:21,122 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-03 16:50:21,124 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-03 16:50:21,125 INFO L133 SettingsManager]: * Use SBE=true [2018-12-03 16:50:21,125 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 16:50:21,125 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 16:50:21,125 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 16:50:21,125 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 16:50:21,126 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 16:50:21,126 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 16:50:21,126 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 16:50:21,126 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 16:50:21,126 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 16:50:21,127 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 16:50:21,127 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 16:50:21,127 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 16:50:21,127 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 16:50:21,127 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 16:50:21,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 16:50:21,129 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 16:50:21,130 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 16:50:21,130 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 16:50:21,130 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 16:50:21,130 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 16:50:21,130 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 16:50:21,131 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 16:50:21,131 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-03 16:50:21,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 16:50:21,196 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 16:50:21,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 16:50:21,203 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-03 16:50:21,204 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-03 16:50:21,205 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired01-BackwardSuccess.bpl [2018-12-03 16:50:21,205 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired01-BackwardSuccess.bpl' [2018-12-03 16:50:21,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 16:50:21,243 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-03 16:50:21,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 16:50:21,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 16:50:21,244 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 16:50:21,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,278 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-03 16:50:21,279 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-03 16:50:21,279 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-03 16:50:21,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 16:50:21,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 16:50:21,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 16:50:21,283 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 16:50:21,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/1) ... [2018-12-03 16:50:21,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 16:50:21,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 16:50:21,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 16:50:21,305 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 16:50:21,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (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 16:50:21,378 INFO L130 BoogieDeclarations]: Found specification of procedure proc [2018-12-03 16:50:21,379 INFO L138 BoogieDeclarations]: Found implementation of procedure proc [2018-12-03 16:50:21,574 INFO L272 CfgBuilder]: Using library mode [2018-12-03 16:50:21,574 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 16:50:21,575 INFO L202 PluginConnector]: Adding new model DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:50:21 BoogieIcfgContainer [2018-12-03 16:50:21,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 16:50:21,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 16:50:21,577 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 16:50:21,580 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 16:50:21,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.12 04:50:21" (1/2) ... [2018-12-03 16:50:21,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce1bef8 and model type DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 04:50:21, skipping insertion in model container [2018-12-03 16:50:21,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:50:21" (2/2) ... [2018-12-03 16:50:21,585 INFO L112 eAbstractionObserver]: Analyzing ICFG DivisibilityInterpolantRequired01-BackwardSuccess.bpl [2018-12-03 16:50:21,596 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 16:50:21,605 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 16:50:21,624 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 16:50:21,667 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 16:50:21,667 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 16:50:21,667 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 16:50:21,668 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 16:50:21,668 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 16:50:21,668 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 16:50:21,668 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 16:50:21,668 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 16:50:21,685 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2018-12-03 16:50:21,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-03 16:50:21,694 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 16:50:21,696 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2018-12-03 16:50:21,698 INFO L423 AbstractCegarLoop]: === Iteration 1 === [procErr0ASSERT_VIOLATIONASSERT]=== [2018-12-03 16:50:21,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 16:50:21,704 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2018-12-03 16:50:21,706 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 16:50:21,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:50:21,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 16:50:21,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 16:50:21,756 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 16:50:21,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 16:50:22,054 WARN L180 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 10 [2018-12-03 16:50:22,060 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 16:50:22,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 16:50:22,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-03 16:50:22,065 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 16:50:22,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 16:50:22,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 16:50:22,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 16:50:22,089 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2018-12-03 16:50:22,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 16:50:22,132 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2018-12-03 16:50:22,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 16:50:22,135 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-03 16:50:22,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 16:50:22,143 INFO L225 Difference]: With dead ends: 5 [2018-12-03 16:50:22,144 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 16:50:22,147 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 16:50:22,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 16:50:22,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 16:50:22,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 16:50:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 16:50:22,175 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2 [2018-12-03 16:50:22,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 16:50:22,175 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 16:50:22,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 16:50:22,175 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 16:50:22,175 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 16:50:22,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 16:50:22,268 INFO L444 ceAbstractionStarter]: At program point L18-1(lines 18 20) the Hoare annotation is: (let ((.cse0 (div proc_a 2))) (and (<= proc_a (* 2 .cse0)) (< 0 (+ .cse0 1)))) [2018-12-03 16:50:22,268 INFO L448 ceAbstractionStarter]: For program point procEXIT(lines 14 23) no Hoare annotation was computed. [2018-12-03 16:50:22,269 INFO L448 ceAbstractionStarter]: For program point procErr0ASSERT_VIOLATIONASSERT(line 21) no Hoare annotation was computed. [2018-12-03 16:50:22,269 INFO L448 ceAbstractionStarter]: For program point procENTRY(lines 14 23) no Hoare annotation was computed. [2018-12-03 16:50:22,269 INFO L448 ceAbstractionStarter]: For program point procFINAL(lines 14 23) no Hoare annotation was computed. [2018-12-03 16:50:22,280 INFO L202 PluginConnector]: Adding new model DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 04:50:22 BoogieIcfgContainer [2018-12-03 16:50:22,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 16:50:22,282 INFO L168 Benchmark]: Toolchain (without parser) took 1040.05 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-12-03 16:50:22,283 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 16:50:22,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.43 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 16:50:22,285 INFO L168 Benchmark]: Boogie Preprocessor took 22.07 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 16:50:22,286 INFO L168 Benchmark]: RCFGBuilder took 270.10 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 16:50:22,287 INFO L168 Benchmark]: TraceAbstraction took 704.41 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-03 16:50:22,292 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 0.20 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 38.43 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 22.07 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 270.10 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 704.41 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: a <= 2 * (a / 2) && 0 < a / 2 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 15 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...