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 -i ../../../trunk/examples/programs/regression/bpl/interprocedural/BugLiveVariables03-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:08:47,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:08:47,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:08:47,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:08:47,584 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:08:47,585 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:08:47,587 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:08:47,589 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:08:47,591 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:08:47,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:08:47,593 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:08:47,593 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:08:47,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:08:47,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:08:47,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:08:47,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:08:47,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:08:47,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:08:47,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:08:47,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:08:47,605 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:08:47,606 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:08:47,608 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:08:47,608 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:08:47,611 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 11:08:47,615 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:08:47,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:08:47,616 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:08:47,617 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:08:47,618 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:08:47,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:08:47,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:08:47,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:08:47,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:08:47,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:08:47,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:08:47,649 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:08:47,661 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:08:47,665 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:08:47,666 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:08:47,667 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:08:47,667 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugLiveVariables03-Safe.bpl [2019-08-05 11:08:47,668 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugLiveVariables03-Safe.bpl' [2019-08-05 11:08:47,705 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:08:47,707 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:08:47,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:08:47,708 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:08:47,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:08:47,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,737 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:08:47,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:08:47,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:08:47,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:08:47,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,779 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/1) ... [2019-08-05 11:08:47,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:08:47,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:08:47,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:08:47,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:08:47,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 11:08:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2019-08-05 11:08:47,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:08:47,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:08:47,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-08-05 11:08:48,344 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:08:48,344 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-08-05 11:08:48,346 INFO L202 PluginConnector]: Adding new model BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:08:48 BoogieIcfgContainer [2019-08-05 11:08:48,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:08:48,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:08:48,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:08:48,357 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:08:48,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:47" (1/2) ... [2019-08-05 11:08:48,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c258c05 and model type BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:08:48, skipping insertion in model container [2019-08-05 11:08:48,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:08:48" (2/2) ... [2019-08-05 11:08:48,361 INFO L109 eAbstractionObserver]: Analyzing ICFG BugLiveVariables03-Safe.bpl [2019-08-05 11:08:48,372 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:08:48,383 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-08-05 11:08:48,400 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-08-05 11:08:48,432 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:08:48,433 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:08:48,433 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:08:48,433 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:08:48,433 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:08:48,433 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:08:48,434 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:08:48,434 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:08:48,434 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:08:48,446 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:08:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:08:48,454 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:08:48,455 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:08:48,458 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION]=== [2019-08-05 11:08:48,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:08:48,469 INFO L82 PathProgramCache]: Analyzing trace with hash 1494, now seen corresponding path program 1 times [2019-08-05 11:08:48,523 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:08:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:08:48,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 9 conjunts are in the unsatisfiable core [2019-08-05 11:08:48,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:08:48,648 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_31|, v_prenex_1], 1=[|v_#valid_25|]} [2019-08-05 11:08:48,708 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:48,748 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2019-08-05 11:08:48,749 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:48,850 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:48,870 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:48,910 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2019-08-05 11:08:48,910 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:49,049 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-08-05 11:08:49,050 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:49,091 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:49,115 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2019-08-05 11:08:49,116 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:49,143 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2019-08-05 11:08:49,144 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:49,281 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-08-05 11:08:49,282 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:49,284 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-08-05 11:08:49,284 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:49, output treesize:39 [2019-08-05 11:08:49,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:08:49,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:08:49,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:08:49,393 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:08:49,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:08:49,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:08:49,407 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 11:08:49,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:08:49,466 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2019-08-05 11:08:49,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:08:49,468 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 11:08:49,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:08:49,479 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:08:49,479 INFO L226 Difference]: Without dead ends: 4 [2019-08-05 11:08:49,481 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:08:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-08-05 11:08:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-08-05 11:08:49,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-08-05 11:08:49,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3 transitions. [2019-08-05 11:08:49,516 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 3 transitions. Word has length 2 [2019-08-05 11:08:49,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:08:49,517 INFO L475 AbstractCegarLoop]: Abstraction has 4 states and 3 transitions. [2019-08-05 11:08:49,517 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:08:49,517 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2019-08-05 11:08:49,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:08:49,518 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:08:49,518 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:08:49,518 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0REQUIRES_VIOLATIONPRE_CONDITION, ULTIMATE.startErr1REQUIRES_VIOLATIONPRE_CONDITION]=== [2019-08-05 11:08:49,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:08:49,519 INFO L82 PathProgramCache]: Analyzing trace with hash 46604, now seen corresponding path program 1 times [2019-08-05 11:08:49,520 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:08:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:08:49,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 11:08:49,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:08:49,597 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_3, |v_#length_32|], 1=[|v_#valid_26|]} [2019-08-05 11:08:49,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:49,649 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2019-08-05 11:08:49,650 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:49,811 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-08-05 11:08:49,812 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:49,820 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:49,825 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 25 [2019-08-05 11:08:49,826 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:49,953 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-08-05 11:08:49,953 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:49,973 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:49,986 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2019-08-05 11:08:49,988 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:50,006 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 24 [2019-08-05 11:08:50,007 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:50,062 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:50,065 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-08-05 11:08:50,066 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:49, output treesize:39 [2019-08-05 11:08:50,141 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:50,202 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:50,202 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 62 [2019-08-05 11:08:50,204 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:50,594 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-08-05 11:08:50,594 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:50,595 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 68 [2019-08-05 11:08:50,597 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:50,762 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 31 [2019-08-05 11:08:50,763 INFO L567 ElimStorePlain]: treesize reduction 52, result has 54.0 percent of original size [2019-08-05 11:08:50,765 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:50,768 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2019-08-05 11:08:50,768 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:57, output treesize:61 [2019-08-05 11:08:50,769 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:50,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:08:50,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:08:50,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:08:50,834 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:08:50,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:08:50,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:08:50,835 INFO L87 Difference]: Start difference. First operand 4 states and 3 transitions. Second operand 4 states. [2019-08-05 11:08:50,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:08:50,865 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2019-08-05 11:08:50,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:08:50,870 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-08-05 11:08:50,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:08:50,870 INFO L225 Difference]: With dead ends: 3 [2019-08-05 11:08:50,870 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:08:50,871 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:08:50,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:08:50,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:08:50,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:08:50,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:08:50,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-08-05 11:08:50,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:08:50,873 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:08:50,874 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:08:50,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:08:50,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:08:50,880 INFO L202 PluginConnector]: Adding new model BugLiveVariables03-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:08:50 BoogieIcfgContainer [2019-08-05 11:08:50,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:08:50,882 INFO L168 Benchmark]: Toolchain (without parser) took 3175.00 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 111.8 MB in the beginning and 81.0 MB in the end (delta: 30.8 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:50,883 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 113.0 MB in the beginning and 112.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 11:08:50,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.45 ms. Allocated memory is still 134.2 MB. Free memory was 111.6 MB in the beginning and 109.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:50,887 INFO L168 Benchmark]: Boogie Preprocessor took 19.47 ms. Allocated memory is still 134.2 MB. Free memory was 109.5 MB in the beginning and 108.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:50,888 INFO L168 Benchmark]: RCFGBuilder took 565.36 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 93.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:50,889 INFO L168 Benchmark]: TraceAbstraction took 2529.61 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 92.9 MB in the beginning and 81.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:50,898 INFO L335 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 0.23 ms. Allocated memory is still 134.2 MB. Free memory was 113.0 MB in the beginning and 112.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.45 ms. Allocated memory is still 134.2 MB. Free memory was 111.6 MB in the beginning and 109.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.47 ms. Allocated memory is still 134.2 MB. Free memory was 109.5 MB in the beginning and 108.4 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 565.36 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 93.1 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2529.61 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 92.9 MB in the beginning and 81.0 MB in the end (delta: 11.9 MB). Peak memory consumption was 47.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 22]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 2 error locations. SAFE Result, 2.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 3 QuantifiedInterpolants, 200 SizeOfPredicates, 8 NumberOfNonLiveVariables, 64 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...