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_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:04:29,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:04:29,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:04:29,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:04:29,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:04:29,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:04:29,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:04:29,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:04:29,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:04:29,832 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:04:29,833 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:04:29,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:04:29,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:04:29,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:04:29,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:04:29,837 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:04:29,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:04:29,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:04:29,841 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:04:29,843 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:04:29,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:04:29,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:04:29,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:04:29,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:04:29,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 11:04:29,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:04:29,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:04:29,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:04:29,912 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:04:29,929 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:04:29,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:04:29,934 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:04:29,934 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:04:29,935 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl [2019-08-05 11:04:29,935 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl' [2019-08-05 11:04:29,993 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:04:29,995 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:04:29,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:04:29,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:04:29,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:04:30,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:04:30,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:04:30,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:04:30,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:04:30,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,069 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/1) ... [2019-08-05 11:04:30,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:04:30,078 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:04:30,078 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:04:30,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:04:30,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (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 11:04:30,153 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:04:30,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:04:30,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:04:30,406 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:04:30,407 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:04:30,408 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:04:30 BoogieIcfgContainer [2019-08-05 11:04:30,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:04:30,410 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:04:30,410 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:04:30,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:04:30,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:04:29" (1/2) ... [2019-08-05 11:04:30,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2075c8 and model type ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:04:30, skipping insertion in model container [2019-08-05 11:04:30,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:04:30" (2/2) ... [2019-08-05 11:04:30,417 INFO L109 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl [2019-08-05 11:04:30,427 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:04:30,434 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:04:30,451 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:04:30,477 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:04:30,478 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:04:30,478 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:04:30,478 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:04:30,479 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:04:30,479 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:04:30,479 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:04:30,479 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:04:30,479 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:04:30,492 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 11:04:30,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:04:30,500 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:04:30,501 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:04:30,503 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:04:30,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:04:30,509 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2019-08-05 11:04:30,561 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:04:30,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:04:30,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 11:04:30,632 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:04:30,774 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 11:04:30,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:04:30,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:04:30,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:04:30,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:04:30,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:04:30,810 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-08-05 11:04:30,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:04:30,842 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-05 11:04:30,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:04:30,844 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 11:04:30,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:04:30,854 INFO L225 Difference]: With dead ends: 5 [2019-08-05 11:04:30,855 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 11:04:30,857 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:04:30,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 11:04:30,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 11:04:30,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 11:04:30,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-05 11:04:30,891 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-05 11:04:30,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:04:30,891 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-05 11:04:30,892 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:04:30,892 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-05 11:04:30,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:04:30,892 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:04:30,893 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:04:30,893 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:04:30,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:04:30,894 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2019-08-05 11:04:30,895 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:04:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:04:30,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 11:04:30,953 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:04:31,047 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 11:04:31,047 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 11:04:31,048 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 11:04:31,049 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:04:31,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:04:31,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:04:31,051 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-08-05 11:04:31,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:04:31,087 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-05 11:04:31,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:04:31,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 11:04:31,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:04:31,088 INFO L225 Difference]: With dead ends: 6 [2019-08-05 11:04:31,088 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 11:04:31,090 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 11:04:31,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 11:04:31,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 11:04:31,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 11:04:31,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-05 11:04:31,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-08-05 11:04:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:04:31,094 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-05 11:04:31,094 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:04:31,094 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-05 11:04:31,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 11:04:31,095 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:04:31,095 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-05 11:04:31,095 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:04:31,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:04:31,096 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2019-08-05 11:04:31,097 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:04:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:04:31,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 11:04:31,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:04:31,435 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2019-08-05 11:04:31,436 INFO L341 Elim1Store]: treesize reduction 27, result has 50.9 percent of original size [2019-08-05 11:04:31,438 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 2 case distinctions, treesize of input 36 treesize of output 54 [2019-08-05 11:04:31,439 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:04:31,689 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 17 [2019-08-05 11:04:31,689 INFO L567 ElimStorePlain]: treesize reduction 24, result has 52.9 percent of original size [2019-08-05 11:04:31,691 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-05 11:04:31,694 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-05 11:04:31,695 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:27 [2019-08-05 11:04:31,696 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-05 11:04:31,784 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-05 11:04:31,821 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-08-05 11:04:31,850 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-08-05 11:04:31,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:04:31,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:04:31,851 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:04:31,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:04:31,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:04:31,852 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 3 states. [2019-08-05 11:04:31,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:04:31,863 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2019-08-05 11:04:31,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:04:31,864 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-08-05 11:04:31,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:04:31,865 INFO L225 Difference]: With dead ends: 4 [2019-08-05 11:04:31,865 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:04:31,865 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:04:31,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:04:31,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:04:31,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:04:31,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:04:31,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-08-05 11:04:31,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:04:31,867 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:04:31,867 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:04:31,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:04:31,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:04:31,873 INFO L202 PluginConnector]: Adding new model ArraysWithLenghtAtDeclaration_false-valid-deref-read.c_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:04:31 BoogieIcfgContainer [2019-08-05 11:04:31,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:04:31,875 INFO L168 Benchmark]: Toolchain (without parser) took 1879.90 ms. Allocated memory was 133.2 MB in the beginning and 171.4 MB in the end (delta: 38.3 MB). Free memory was 110.6 MB in the beginning and 132.5 MB in the end (delta: -21.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:31,877 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 133.2 MB. Free memory was 112.0 MB in the beginning and 111.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 11:04:31,878 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.88 ms. Allocated memory is still 133.2 MB. Free memory was 110.4 MB in the beginning and 108.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:31,879 INFO L168 Benchmark]: Boogie Preprocessor took 39.55 ms. Allocated memory is still 133.2 MB. Free memory was 108.6 MB in the beginning and 107.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:31,880 INFO L168 Benchmark]: RCFGBuilder took 330.20 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 95.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:04:31,881 INFO L168 Benchmark]: TraceAbstraction took 1463.57 ms. Allocated memory was 133.2 MB in the beginning and 171.4 MB in the end (delta: 38.3 MB). Free memory was 94.8 MB in the beginning and 132.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 591.8 kB. Max. memory is 7.1 GB. [2019-08-05 11:04:31,885 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 133.2 MB. Free memory was 112.0 MB in the beginning and 111.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.88 ms. Allocated memory is still 133.2 MB. Free memory was 110.4 MB in the beginning and 108.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.55 ms. Allocated memory is still 133.2 MB. Free memory was 108.6 MB in the beginning and 107.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 330.20 ms. Allocated memory is still 133.2 MB. Free memory was 107.5 MB in the beginning and 95.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1463.57 ms. Allocated memory was 133.2 MB in the beginning and 171.4 MB in the end (delta: 38.3 MB). Free memory was 94.8 MB in the beginning and 132.5 MB in the end (delta: -37.7 MB). Peak memory consumption was 591.8 kB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 120]: 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, 5 locations, 1 error locations. SAFE Result, 1.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 0 SDslu, 3 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 0.9s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 9 ConstructedInterpolants, 3 QuantifiedInterpolants, 413 SizeOfPredicates, 13 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...