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/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:56:51,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:56:51,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:56:51,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:56:51,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:56:51,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:56:51,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:56:51,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:56:51,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:56:51,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:56:51,512 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:56:51,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:56:51,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:56:51,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:56:51,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:56:51,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:56:51,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:56:51,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:56:51,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:56:51,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:56:51,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:56:51,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:56:51,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:56:51,542 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:56:51,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 10:56:51,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:56:51,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:56:51,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:56:51,611 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:56:51,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:56:51,626 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:56:51,628 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:56:51,629 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:56:51,629 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl [2019-08-05 10:56:51,630 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl' [2019-08-05 10:56:51,720 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:56:51,722 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:56:51,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:56:51,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:56:51,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:56:51,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:56:51,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:56:51,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:56:51,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:56:51,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,813 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/1) ... [2019-08-05 10:56:51,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:56:51,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:56:51,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:56:51,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:56:51,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (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 10:56:51,917 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 10:56:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:56:51,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:56:52,454 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:56:52,454 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:56:52,455 INFO L202 PluginConnector]: Adding new model sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:56:52 BoogieIcfgContainer [2019-08-05 10:56:52,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:56:52,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:56:52,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:56:52,462 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:56:52,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:56:51" (1/2) ... [2019-08-05 10:56:52,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b2879 and model type sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:56:52, skipping insertion in model container [2019-08-05 10:56:52,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:56:52" (2/2) ... [2019-08-05 10:56:52,466 INFO L109 eAbstractionObserver]: Analyzing ICFG sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl [2019-08-05 10:56:52,476 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:56:52,486 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:56:52,503 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:56:52,530 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:56:52,531 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:56:52,531 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:56:52,531 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:56:52,531 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:56:52,531 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:56:52,532 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:56:52,532 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:56:52,532 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:56:52,543 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 10:56:52,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:56:52,551 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:56:52,552 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:56:52,554 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:56:52,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:56:52,559 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-08-05 10:56:52,607 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:56:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:56:52,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 18 conjunts are in the unsatisfiable core [2019-08-05 10:56:52,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:56:53,606 WARN L188 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 24 [2019-08-05 10:56:53,608 INFO L341 Elim1Store]: treesize reduction 141, result has 23.8 percent of original size [2019-08-05 10:56:53,609 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 5 case distinctions, treesize of input 69 treesize of output 95 [2019-08-05 10:56:53,614 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 10:56:53,970 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 27 [2019-08-05 10:56:53,970 INFO L567 ElimStorePlain]: treesize reduction 42, result has 52.8 percent of original size [2019-08-05 10:56:53,975 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-08-05 10:56:53,986 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2019-08-05 10:56:53,987 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:47, output treesize:47 [2019-08-05 10:56:53,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-08-05 10:56:54,014 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-08-05 10:56:54,568 WARN L188 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 31 [2019-08-05 10:56:54,581 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 10:56:54,584 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:56:54,584 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:56:54,589 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:56:54,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:56:54,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:56:54,608 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 10:56:55,078 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 35 [2019-08-05 10:56:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:56:55,134 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:56:55,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:56:55,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:56:55,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:56:55,148 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:56:55,148 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 10:56:55,150 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:56:55,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 10:56:55,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-05 10:56:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:56:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:56:55,184 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 10:56:55,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:56:55,184 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:56:55,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:56:55,185 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:56:55,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:56:55,185 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:56:55,186 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 10:56:55,186 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:56:55,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:56:55,187 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2019-08-05 10:56:55,188 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:56:55,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:56:55,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 62 conjunts are in the unsatisfiable core [2019-08-05 10:56:55,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:56:55,423 INFO L392 ElimStorePlain]: Different costs {0=[|ULTIMATE.start_#Ultimate.alloc_old_#length|], 11=[|v_#valid_10|]} [2019-08-05 10:56:55,452 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-05 10:56:55,453 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 10:56:55,580 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-08-05 10:56:55,581 INFO L567 ElimStorePlain]: treesize reduction 14, result has 93.3 percent of original size [2019-08-05 10:56:55,687 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 10:56:55,688 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 84 [2019-08-05 10:56:55,688 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:55,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:55,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:55,694 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 10:56:56,123 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 46 [2019-08-05 10:56:56,123 INFO L567 ElimStorePlain]: treesize reduction 123, result has 59.8 percent of original size [2019-08-05 10:56:56,186 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 10:56:56,248 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 10:56:56,249 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 153 treesize of output 105 [2019-08-05 10:56:56,250 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 10:56:56,381 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-08-05 10:56:56,382 INFO L567 ElimStorePlain]: treesize reduction 44, result has 67.2 percent of original size [2019-08-05 10:56:56,384 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,385 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,387 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,391 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-1 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-08-05 10:56:56,391 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 7 variables, input treesize:211, output treesize:90 [2019-08-05 10:56:56,393 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,394 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,581 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-08-05 10:56:56,586 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,587 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,589 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:56:56,780 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-08-05 10:56:56,801 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:56:56,801 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:56:56,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:56:56,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:56:56,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:56:56,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:56:56,804 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-08-05 10:56:57,415 WARN L188 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83 [2019-08-05 10:56:57,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:56:57,417 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2019-08-05 10:56:57,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:56:57,418 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-05 10:56:57,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:56:57,418 INFO L225 Difference]: With dead ends: 3 [2019-08-05 10:56:57,419 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:56:57,422 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:56:57,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:56:57,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:56:57,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:56:57,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:56:57,423 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-05 10:56:57,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:56:57,423 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:56:57,423 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:56:57,423 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:56:57,424 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:56:57,428 INFO L202 PluginConnector]: Adding new model sll-buckets_true-unreach-call_true-valid-memsafety.i_42.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:56:57 BoogieIcfgContainer [2019-08-05 10:56:57,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:56:57,431 INFO L168 Benchmark]: Toolchain (without parser) took 5708.51 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 108.2 MB in the beginning and 82.3 MB in the end (delta: 26.0 MB). Peak memory consumption was 88.9 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:57,431 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory is still 110.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:56:57,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.32 ms. Allocated memory is still 140.0 MB. Free memory was 107.8 MB in the beginning and 106.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:57,433 INFO L168 Benchmark]: Boogie Preprocessor took 66.51 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 104.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:57,434 INFO L168 Benchmark]: RCFGBuilder took 600.37 ms. Allocated memory is still 140.0 MB. Free memory was 104.0 MB in the beginning and 74.7 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:57,435 INFO L168 Benchmark]: TraceAbstraction took 4970.24 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 74.7 MB in the beginning and 82.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:56:57,439 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 140.0 MB. Free memory is still 110.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.32 ms. Allocated memory is still 140.0 MB. Free memory was 107.8 MB in the beginning and 106.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 66.51 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 104.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 600.37 ms. Allocated memory is still 140.0 MB. Free memory was 104.0 MB in the beginning and 74.7 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4970.24 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 74.7 MB in the beginning and 82.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 55.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 300]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 2 SDslu, 2 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 4 QuantifiedInterpolants, 1774 SizeOfPredicates, 45 NumberOfNonLiveVariables, 331 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...