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/ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:05:13,197 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:05:13,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:05:13,216 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:05:13,216 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:05:13,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:05:13,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:05:13,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:05:13,224 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:05:13,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:05:13,228 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:05:13,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:05:13,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:05:13,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:05:13,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:05:13,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:05:13,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:05:13,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:05:13,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:05:13,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:05:13,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:05:13,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:05:13,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:05:13,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:05:13,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:05:13,258 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:05:13,258 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:05:13,260 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:05:13,261 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:05:13,262 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:05:13,262 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:05:13,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:05:13,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:05:13,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:05:13,269 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:05:13,270 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:05:13,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:05:13,271 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:05:13,271 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:05:13,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:05:13,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:05:13,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:05:13,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:05:13,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:05:13,334 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:05:13,335 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:05:13,335 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl [2019-08-05 11:05:13,336 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl' [2019-08-05 11:05:13,399 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:05:13,400 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:05:13,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:05:13,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:05:13,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:05:13,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,440 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:05:13,441 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:05:13,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:05:13,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:05:13,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/1) ... [2019-08-05 11:05:13,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:05:13,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:05:13,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:05:13,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:05:13,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (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 11:05:13,544 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:05:13,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:05:13,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:05:13,832 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:05:13,832 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:05:13,837 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:05:13 BoogieIcfgContainer [2019-08-05 11:05:13,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:05:13,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:05:13,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:05:13,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:05:13,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:05:13" (1/2) ... [2019-08-05 11:05:13,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@637f8be6 and model type ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:05:13, skipping insertion in model container [2019-08-05 11:05:13,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:05:13" (2/2) ... [2019-08-05 11:05:13,851 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl [2019-08-05 11:05:13,867 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:05:13,877 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:05:13,912 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:05:13,990 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:05:13,991 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:05:13,991 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:05:13,991 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:05:13,993 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:05:13,993 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:05:13,994 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:05:13,994 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:05:13,994 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:05:14,030 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:05:14,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:05:14,049 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:05:14,050 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:05:14,052 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:05:14,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:05:14,061 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-08-05 11:05:14,107 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:05:14,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:05:14,192 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjunts are in the unsatisfiable core [2019-08-05 11:05:14,197 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:05:14,254 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_6|], 2=[|v_#valid_7|]} [2019-08-05 11:05:14,295 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:05:14,309 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 9 treesize of output 11 [2019-08-05 11:05:14,310 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:05:14,372 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:05:14,412 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 23 treesize of output 21 [2019-08-05 11:05:14,414 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-08-05 11:05:14,539 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 17 [2019-08-05 11:05:14,540 INFO L567 ElimStorePlain]: treesize reduction 14, result has 60.0 percent of original size [2019-08-05 11:05:14,542 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:05:14,543 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:27, output treesize:12 [2019-08-05 11:05:14,600 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 11:05:14,603 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:05:14,603 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:05:14,607 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:05:14,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:05:14,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:05:14,621 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 11:05:14,804 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-08-05 11:05:14,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:05:14,905 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 11:05:14,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:05:14,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 11:05:14,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:05:14,927 INFO L225 Difference]: With dead ends: 8 [2019-08-05 11:05:14,928 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 11:05:14,933 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:05:14,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 11:05:14,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-05 11:05:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 11:05:14,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 11:05:14,999 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 11:05:14,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:05:15,000 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 11:05:15,000 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:05:15,000 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 11:05:15,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:05:15,001 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:05:15,001 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 11:05:15,001 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:05:15,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:05:15,002 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2019-08-05 11:05:15,003 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:05:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:05:15,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 11:05:15,068 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:05:15,123 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 11:05:15,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:05:15,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:05:15,125 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:05:15,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:05:15,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:05:15,126 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-08-05 11:05:15,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:05:15,146 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-05 11:05:15,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:05:15,147 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-05 11:05:15,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:05:15,147 INFO L225 Difference]: With dead ends: 4 [2019-08-05 11:05:15,147 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:05:15,148 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:05:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:05:15,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:05:15,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:05:15,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:05:15,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-05 11:05:15,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:05:15,150 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:05:15,150 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:05:15,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:05:15,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:05:15,155 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength5_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:05:15 BoogieIcfgContainer [2019-08-05 11:05:15,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:05:15,158 INFO L168 Benchmark]: Toolchain (without parser) took 1757.26 ms. Allocated memory was 131.1 MB in the beginning and 173.5 MB in the end (delta: 42.5 MB). Free memory was 108.4 MB in the beginning and 141.8 MB in the end (delta: -33.4 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:15,159 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 109.8 MB in the beginning and 109.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 11:05:15,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.20 ms. Allocated memory is still 131.1 MB. Free memory was 108.2 MB in the beginning and 106.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:15,161 INFO L168 Benchmark]: Boogie Preprocessor took 30.61 ms. Allocated memory is still 131.1 MB. Free memory was 106.5 MB in the beginning and 105.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:15,162 INFO L168 Benchmark]: RCFGBuilder took 364.96 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 93.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:05:15,163 INFO L168 Benchmark]: TraceAbstraction took 1317.28 ms. Allocated memory was 131.1 MB in the beginning and 173.5 MB in the end (delta: 42.5 MB). Free memory was 92.8 MB in the beginning and 141.8 MB in the end (delta: -49.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:05:15,167 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 0.22 ms. Allocated memory is still 131.1 MB. Free memory was 109.8 MB in the beginning and 109.6 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 40.20 ms. Allocated memory is still 131.1 MB. Free memory was 108.2 MB in the beginning and 106.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.61 ms. Allocated memory is still 131.1 MB. Free memory was 106.5 MB in the beginning and 105.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 364.96 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 93.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1317.28 ms. Allocated memory was 131.1 MB in the beginning and 173.5 MB in the end (delta: 42.5 MB). Free memory was 92.8 MB in the beginning and 141.8 MB in the end (delta: -49.0 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 117]: 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, 1.1s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 1 SDslu, 2 SDs, 0 SdLazy, 13 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 15 NumberOfNonLiveVariables, 180 ConjunctsInSsa, 20 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...