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/ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:01:45,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:01:45,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:01:45,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:01:45,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:01:45,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:01:45,377 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:01:45,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:01:45,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:01:45,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:01:45,382 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:01:45,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:01:45,383 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:01:45,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:01:45,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:01:45,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:01:45,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:01:45,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:01:45,390 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:01:45,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:01:45,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:01:45,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:01:45,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:01:45,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:01:45,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:01:45,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:01:45,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:01:45,401 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:01:45,402 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:01:45,403 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:01:45,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:01:45,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:01:45,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:01:45,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:01:45,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:01:45,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:01:45,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:01:45,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:01:45,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:01:45,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:01:45,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:01:45,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:01:45,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:01:45,461 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:01:45,463 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:01:45,464 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:01:45,464 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl [2019-08-05 11:01:45,465 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl' [2019-08-05 11:01:45,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:01:45,536 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:01:45,537 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:01:45,537 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:01:45,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:01:45,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:01:45,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:01:45,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:01:45,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:01:45,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/1) ... [2019-08-05 11:01:45,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:01:45,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:01:45,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:01:45,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:01:45,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (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 11:01:45,703 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:01:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:01:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:01:46,063 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:01:46,064 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:01:46,065 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:01:46 BoogieIcfgContainer [2019-08-05 11:01:46,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:01:46,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:01:46,068 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:01:46,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:01:46,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:01:45" (1/2) ... [2019-08-05 11:01:46,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735762a and model type ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:01:46, skipping insertion in model container [2019-08-05 11:01:46,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:01:46" (2/2) ... [2019-08-05 11:01:46,078 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl [2019-08-05 11:01:46,101 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:01:46,112 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:01:46,126 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:01:46,151 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:01:46,152 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:01:46,152 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:01:46,152 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:01:46,152 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:01:46,152 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:01:46,153 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:01:46,153 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:01:46,153 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:01:46,164 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:01:46,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:01:46,173 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:01:46,174 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:01:46,176 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:01:46,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:01:46,182 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2019-08-05 11:01:46,232 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:01:46,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:01:46,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 11:01:46,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:01:46,401 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 11:01:46,403 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:01:46,403 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:01:46,407 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:01:46,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:01:46,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:01:46,421 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 11:01:46,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:01:46,547 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 11:01:46,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:01:46,550 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 11:01:46,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:01:46,562 INFO L225 Difference]: With dead ends: 8 [2019-08-05 11:01:46,563 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 11:01:46,567 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 11:01:46,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 11:01:46,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-05 11:01:46,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 11:01:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 11:01:46,604 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 11:01:46,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:01:46,605 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 11:01:46,605 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:01:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 11:01:46,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:01:46,606 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:01:46,606 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 11:01:46,607 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:01:46,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:01:46,607 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2019-08-05 11:01:46,609 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:01:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:01:46,753 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 32 conjunts are in the unsatisfiable core [2019-08-05 11:01:46,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:01:46,950 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:46,951 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 11 treesize of output 15 [2019-08-05 11:01:46,952 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:01:46,955 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:47,011 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:47,041 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 0 case distinctions, treesize of input 14 treesize of output 16 [2019-08-05 11:01:47,042 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:01:47,077 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:01:47,078 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 11:01:47,079 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:30, output treesize:14 [2019-08-05 11:01:47,186 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 11:01:47,186 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:01:47,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 11:01:47,188 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:01:47,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:01:47,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:01:47,189 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-08-05 11:01:47,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:01:47,413 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-05 11:01:47,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:01:47,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-08-05 11:01:47,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:01:47,415 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:01:47,416 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:01:47,417 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-08-05 11:01:47,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:01:47,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:01:47,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:01:47,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:01:47,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-05 11:01:47,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:01:47,418 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:01:47,418 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:01:47,419 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:01:47,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:01:47,424 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength2_true-valid-memsafety.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:01:47 BoogieIcfgContainer [2019-08-05 11:01:47,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:01:47,427 INFO L168 Benchmark]: Toolchain (without parser) took 1891.30 ms. Allocated memory was 135.8 MB in the beginning and 168.8 MB in the end (delta: 33.0 MB). Free memory was 113.0 MB in the beginning and 128.4 MB in the end (delta: -15.4 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:47,428 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 135.8 MB. Free memory is still 114.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:01:47,429 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.44 ms. Allocated memory is still 135.8 MB. Free memory was 113.0 MB in the beginning and 111.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:47,430 INFO L168 Benchmark]: Boogie Preprocessor took 41.00 ms. Allocated memory is still 135.8 MB. Free memory was 110.9 MB in the beginning and 110.0 MB in the end (delta: 900.1 kB). Peak memory consumption was 900.1 kB. Max. memory is 7.1 GB. [2019-08-05 11:01:47,431 INFO L168 Benchmark]: RCFGBuilder took 440.75 ms. Allocated memory is still 135.8 MB. Free memory was 109.6 MB in the beginning and 96.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:01:47,432 INFO L168 Benchmark]: TraceAbstraction took 1357.31 ms. Allocated memory was 135.8 MB in the beginning and 168.8 MB in the end (delta: 33.0 MB). Free memory was 95.9 MB in the beginning and 128.4 MB in the end (delta: -32.5 MB). Peak memory consumption was 512.3 kB. Max. memory is 7.1 GB. [2019-08-05 11:01:47,436 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 135.8 MB. Free memory is still 114.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.44 ms. Allocated memory is still 135.8 MB. Free memory was 113.0 MB in the beginning and 111.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.00 ms. Allocated memory is still 135.8 MB. Free memory was 110.9 MB in the beginning and 110.0 MB in the end (delta: 900.1 kB). Peak memory consumption was 900.1 kB. Max. memory is 7.1 GB. * RCFGBuilder took 440.75 ms. Allocated memory is still 135.8 MB. Free memory was 109.6 MB in the beginning and 96.3 MB in the end (delta: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1357.31 ms. Allocated memory was 135.8 MB in the beginning and 168.8 MB in the end (delta: 33.0 MB). Free memory was 95.9 MB in the beginning and 128.4 MB in the end (delta: -32.5 MB). Peak memory consumption was 512.3 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 151]: 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, 1.2s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 SDtfs, 1 SDslu, 4 SDs, 0 SdLazy, 13 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s 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, 0.5s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 SizeOfPredicates, 23 NumberOfNonLiveVariables, 222 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...