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/dll_extends_pointer_true-valid-memsafety.i_27.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:01:17,548 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:01:17,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:01:17,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:01:17,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:01:17,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:01:17,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:01:17,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:01:17,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:01:17,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:01:17,578 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:01:17,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:01:17,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:01:17,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:01:17,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:01:17,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:01:17,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:01:17,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:01:17,589 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:01:17,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:01:17,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:01:17,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:01:17,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:01:17,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:01:17,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:01:17,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:01:17,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:01:17,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:01:17,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:01:17,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:01:17,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:01:17,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:01:17,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:01:17,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:01:17,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:01:17,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:01:17,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:01:17,621 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:01:17,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:01:17,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:01:17,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:01:17,654 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:01:17,665 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:01:17,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:01:17,670 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:01:17,670 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:01:17,671 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_27.bpl [2019-08-05 11:01:17,671 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/dll_extends_pointer_true-valid-memsafety.i_27.bpl' [2019-08-05 11:01:17,727 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:01:17,729 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:01:17,730 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:01:17,730 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:01:17,730 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:01:17,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,772 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:01:17,773 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:01:17,773 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:01:17,773 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:01:17,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,793 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,814 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/1) ... [2019-08-05 11:01:17,826 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:01:17,827 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:01:17,827 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:01:17,827 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:01:17,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (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 11:01:17,901 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:01:17,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:01:17,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:01:18,226 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:01:18,227 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:01:18,228 INFO L202 PluginConnector]: Adding new model dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:01:18 BoogieIcfgContainer [2019-08-05 11:01:18,228 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:01:18,230 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:01:18,230 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:01:18,233 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:01:18,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:17" (1/2) ... [2019-08-05 11:01:18,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47b6ad71 and model type dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:01:18, skipping insertion in model container [2019-08-05 11:01:18,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:01:18" (2/2) ... [2019-08-05 11:01:18,236 INFO L109 eAbstractionObserver]: Analyzing ICFG dll_extends_pointer_true-valid-memsafety.i_27.bpl [2019-08-05 11:01:18,246 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:01:18,253 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:01:18,269 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:01:18,292 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:01:18,293 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:01:18,293 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:01:18,293 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:01:18,294 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:01:18,294 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:01:18,294 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:01:18,294 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:01:18,294 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:01:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-08-05 11:01:18,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 11:01:18,313 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:01:18,314 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-08-05 11:01:18,317 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:01:18,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:01:18,323 INFO L82 PathProgramCache]: Analyzing trace with hash 28694919, now seen corresponding path program 1 times [2019-08-05 11:01:18,372 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:01:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:01:18,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2019-08-05 11:01:18,453 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:01:18,518 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 11:01:18,526 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:01:18,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:01:18,537 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:01:18,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:01:18,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:01:18,587 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-08-05 11:01:18,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:01:18,698 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2019-08-05 11:01:18,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:01:18,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-08-05 11:01:18,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:01:18,712 INFO L225 Difference]: With dead ends: 7 [2019-08-05 11:01:18,713 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 11:01:18,715 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:01:18,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 11:01:18,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 11:01:18,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 11:01:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2019-08-05 11:01:18,750 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2019-08-05 11:01:18,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:01:18,751 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-08-05 11:01:18,751 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:01:18,751 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-08-05 11:01:18,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:01:18,752 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:01:18,752 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-08-05 11:01:18,752 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:01:18,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:01:18,753 INFO L82 PathProgramCache]: Analyzing trace with hash 889544304, now seen corresponding path program 1 times [2019-08-05 11:01:18,754 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:01:18,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:01:18,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 18 conjunts are in the unsatisfiable core [2019-08-05 11:01:18,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:01:19,043 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-08-05 11:01:19,059 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:19,060 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 61 [2019-08-05 11:01:19,061 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:01:19,066 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:19,252 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2019-08-05 11:01:19,252 INFO L567 ElimStorePlain]: treesize reduction 29, result has 46.3 percent of original size [2019-08-05 11:01:19,253 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:01:19,253 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:24, output treesize:25 [2019-08-05 11:01:19,365 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:01:19,461 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 17 treesize of output 14 [2019-08-05 11:01:19,462 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:19,482 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:01:19,549 INFO L341 Elim1Store]: treesize reduction 12, result has 45.5 percent of original size [2019-08-05 11:01:19,550 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 27 treesize of output 31 [2019-08-05 11:01:19,551 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:19,576 INFO L567 ElimStorePlain]: treesize reduction 26, result has 29.7 percent of original size [2019-08-05 11:01:19,577 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:01:19,578 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:11 [2019-08-05 11:01:19,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:01:19,631 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:01:19,631 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 11:01:19,633 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:01:19,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:01:19,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:01:19,634 INFO L87 Difference]: Start difference. First operand 7 states and 8 transitions. Second operand 4 states. [2019-08-05 11:01:19,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:01:19,803 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2019-08-05 11:01:19,803 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:01:19,804 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-05 11:01:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:01:19,804 INFO L225 Difference]: With dead ends: 9 [2019-08-05 11:01:19,804 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:01:19,805 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:01:19,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:01:19,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:01:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:01:19,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:01:19,808 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-05 11:01:19,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:01:19,810 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:01:19,810 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:01:19,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:01:19,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:01:19,814 INFO L202 PluginConnector]: Adding new model dll_extends_pointer_true-valid-memsafety.i_27.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:01:19 BoogieIcfgContainer [2019-08-05 11:01:19,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:01:19,817 INFO L168 Benchmark]: Toolchain (without parser) took 2087.62 ms. Allocated memory was 134.7 MB in the beginning and 169.9 MB in the end (delta: 35.1 MB). Free memory was 110.3 MB in the beginning and 119.5 MB in the end (delta: -9.2 MB). Peak memory consumption was 26.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:19,818 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 134.7 MB. Free memory was 112.2 MB in the beginning and 112.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 11:01:19,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.69 ms. Allocated memory is still 134.7 MB. Free memory was 110.1 MB in the beginning and 108.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:19,820 INFO L168 Benchmark]: Boogie Preprocessor took 53.65 ms. Allocated memory is still 134.7 MB. Free memory was 108.3 MB in the beginning and 107.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:19,821 INFO L168 Benchmark]: RCFGBuilder took 401.57 ms. Allocated memory is still 134.7 MB. Free memory was 106.8 MB in the beginning and 90.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:19,822 INFO L168 Benchmark]: TraceAbstraction took 1585.34 ms. Allocated memory was 134.7 MB in the beginning and 169.9 MB in the end (delta: 35.1 MB). Free memory was 90.7 MB in the beginning and 119.5 MB in the end (delta: -28.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:19,826 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 134.7 MB. Free memory was 112.2 MB in the beginning and 112.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.69 ms. Allocated memory is still 134.7 MB. Free memory was 110.1 MB in the beginning and 108.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 53.65 ms. Allocated memory is still 134.7 MB. Free memory was 108.3 MB in the beginning and 107.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 401.57 ms. Allocated memory is still 134.7 MB. Free memory was 106.8 MB in the beginning and 90.9 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1585.34 ms. Allocated memory was 134.7 MB in the beginning and 169.9 MB in the end (delta: 35.1 MB). Free memory was 90.7 MB in the beginning and 119.5 MB in the end (delta: -28.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 194]: 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, 7 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 5 SDslu, 3 SDs, 0 SdLazy, 10 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 487 SizeOfPredicates, 12 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...