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/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:02:09,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:02:09,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:02:09,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-08-05 11:02:09,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:02:09,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:02:09,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:02:09,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:02:09,919 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:02:09,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:02:09,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:02:09,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:02:09,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:02:09,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:02:09,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:02:09,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:02:09,931 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 11:02:09,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:02:09,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:02:09,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:02:09,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:02:09,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:02:09,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:02:09,990 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:02:09,991 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:02:09,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl [2019-08-05 11:02:09,993 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl' [2019-08-05 11:02:10,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:02:10,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:02:10,051 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:02:10,051 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:02:10,051 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:02:10,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:02:10,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:02:10,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:02:10,090 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:02:10,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,104 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,108 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,111 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,112 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/1) ... [2019-08-05 11:02:10,114 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:02:10,115 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:02:10,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:02:10,115 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:02:10,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (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 11:02:10,188 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:02:10,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:02:10,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:02:10,503 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:02:10,503 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:02:10,505 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:02:10 BoogieIcfgContainer [2019-08-05 11:02:10,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:02:10,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:02:10,507 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:02:10,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:02:10,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:02:10" (1/2) ... [2019-08-05 11:02:10,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1022faf1 and model type ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:02:10, skipping insertion in model container [2019-08-05 11:02:10,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:02:10" (2/2) ... [2019-08-05 11:02:10,513 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl [2019-08-05 11:02:10,522 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:02:10,531 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:02:10,549 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:02:10,581 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:02:10,581 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:02:10,581 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:02:10,582 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:02:10,582 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:02:10,582 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:02:10,582 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:02:10,582 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:02:10,582 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:02:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:02:10,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:02:10,604 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:02:10,605 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:02:10,607 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:02:10,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:02:10,613 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-08-05 11:02:10,661 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:02:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:02:10,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 11:02:10,721 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:02:10,758 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 11:02:10,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:02:10,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:02:10,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:02:10,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:02:10,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:02:10,786 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 11:02:10,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:02:10,890 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 11:02:10,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:02:10,892 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 11:02:10,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:02:10,904 INFO L225 Difference]: With dead ends: 7 [2019-08-05 11:02:10,905 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 11:02:10,907 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:02:10,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 11:02:10,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 11:02:10,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 11:02:10,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 11:02:10,957 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 11:02:10,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:02:10,962 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 11:02:10,962 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:02:10,962 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 11:02:10,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:02:10,962 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:02:10,963 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 11:02:10,964 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:02:10,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:02:10,964 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2019-08-05 11:02:10,966 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:02:11,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:02:11,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 11:02:11,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:02:11,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:02:11,206 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:02:11,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 11:02:11,210 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:02:11,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:02:11,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:02:11,212 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-08-05 11:02:11,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:02:11,282 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-05 11:02:11,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:02:11,282 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-05 11:02:11,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:02:11,283 INFO L225 Difference]: With dead ends: 9 [2019-08-05 11:02:11,283 INFO L226 Difference]: Without dead ends: 9 [2019-08-05 11:02:11,284 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 11:02:11,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-05 11:02:11,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-05 11:02:11,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 11:02:11,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 11:02:11,287 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-08-05 11:02:11,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:02:11,287 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 11:02:11,288 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:02:11,288 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 11:02:11,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 11:02:11,288 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:02:11,289 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-08-05 11:02:11,289 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:02:11,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:02:11,289 INFO L82 PathProgramCache]: Analyzing trace with hash 198673595, now seen corresponding path program 2 times [2019-08-05 11:02:11,291 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:02:11,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:02:11,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 11:02:11,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:02:11,493 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 11:02:11,493 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:02:11,493 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-08-05 11:02:11,494 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:02:11,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:02:11,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:02:11,495 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2019-08-05 11:02:11,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:02:11,545 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-08-05 11:02:11,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:02:11,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-08-05 11:02:11,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:02:11,547 INFO L225 Difference]: With dead ends: 6 [2019-08-05 11:02:11,550 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:02:11,563 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:02:11,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:02:11,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:02:11,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:02:11,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:02:11,564 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-08-05 11:02:11,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:02:11,564 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:02:11,564 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:02:11,565 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:02:11,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:02:11,573 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_6.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:02:11 BoogieIcfgContainer [2019-08-05 11:02:11,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:02:11,578 INFO L168 Benchmark]: Toolchain (without parser) took 1525.50 ms. Allocated memory was 133.2 MB in the beginning and 170.9 MB in the end (delta: 37.7 MB). Free memory was 109.3 MB in the beginning and 147.1 MB in the end (delta: -37.8 MB). Peak memory consumption was 59.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:02:11,579 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 133.2 MB. Free memory was 110.7 MB in the beginning and 110.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 11:02:11,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.26 ms. Allocated memory is still 133.2 MB. Free memory was 109.1 MB in the beginning and 107.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:02:11,581 INFO L168 Benchmark]: Boogie Preprocessor took 24.75 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 106.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:02:11,582 INFO L168 Benchmark]: RCFGBuilder took 390.29 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 94.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:02:11,584 INFO L168 Benchmark]: TraceAbstraction took 1067.03 ms. Allocated memory was 133.2 MB in the beginning and 170.9 MB in the end (delta: 37.7 MB). Free memory was 94.1 MB in the beginning and 147.1 MB in the end (delta: -53.1 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:02:11,590 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 0.26 ms. Allocated memory is still 133.2 MB. Free memory was 110.7 MB in the beginning and 110.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.26 ms. Allocated memory is still 133.2 MB. Free memory was 109.1 MB in the beginning and 107.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.75 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 106.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 390.29 ms. Allocated memory is still 133.2 MB. Free memory was 106.1 MB in the beginning and 94.5 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1067.03 ms. Allocated memory was 133.2 MB in the beginning and 170.9 MB in the end (delta: 37.7 MB). Free memory was 94.1 MB in the beginning and 147.1 MB in the end (delta: -53.1 MB). Peak memory consumption was 44.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: 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, 0.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 3 SDs, 0 SdLazy, 25 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 345 SizeOfPredicates, 6 NumberOfNonLiveVariables, 195 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...