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/toy/showcase/GoannaDoubleFreeWithoutPointers.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:30:52,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:30:52,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:30:52,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:30:52,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:30:52,931 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:30:52,933 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:30:52,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:30:52,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:30:52,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:30:52,942 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:30:52,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:30:52,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:30:52,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:30:52,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:30:52,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:30:52,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:30:52,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:30:52,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:30:52,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:30:52,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:30:52,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:30:52,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:30:52,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:30:52,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:30:52,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:30:52,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:30:52,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:30:52,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:30:52,979 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:30:52,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:30:52,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:30:52,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:30:52,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:30:52,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:30:52,988 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:30:52,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:30:52,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:30:52,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:30:52,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:30:52,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:30:53,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:30:53,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:30:53,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:30:53,057 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:30:53,058 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:30:53,059 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/showcase/GoannaDoubleFreeWithoutPointers.bpl [2019-08-05 10:30:53,060 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/showcase/GoannaDoubleFreeWithoutPointers.bpl' [2019-08-05 10:30:53,093 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:30:53,095 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:30:53,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:30:53,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:30:53,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:30:53,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,130 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:30:53,130 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:30:53,131 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:30:53,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:30:53,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:30:53,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:30:53,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:30:53,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/1) ... [2019-08-05 10:30:53,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:30:53,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:30:53,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:30:53,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:30:53,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (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 10:30:53,227 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 10:30:53,227 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 10:30:53,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 10:30:53,454 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:30:53,454 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:30:53,456 INFO L202 PluginConnector]: Adding new model GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:30:53 BoogieIcfgContainer [2019-08-05 10:30:53,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:30:53,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:30:53,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:30:53,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:30:53,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:53" (1/2) ... [2019-08-05 10:30:53,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6059973a and model type GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:30:53, skipping insertion in model container [2019-08-05 10:30:53,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:30:53" (2/2) ... [2019-08-05 10:30:53,464 INFO L109 eAbstractionObserver]: Analyzing ICFG GoannaDoubleFreeWithoutPointers.bpl [2019-08-05 10:30:53,474 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:30:53,481 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:30:53,497 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:30:53,522 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:30:53,523 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:30:53,523 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:30:53,524 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:30:53,524 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:30:53,524 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:30:53,524 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:30:53,524 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:30:53,525 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:30:53,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 10:30:53,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:30:53,546 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:30:53,547 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:30:53,550 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:30:53,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:30:53,556 INFO L82 PathProgramCache]: Analyzing trace with hash 29920, now seen corresponding path program 1 times [2019-08-05 10:30:53,605 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:30:53,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:30:53,632 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 10:30:53,637 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:30:53,724 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 10:30:53,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:30:53,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 10:30:53,743 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:30:53,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:30:53,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:30:53,767 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-08-05 10:30:53,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:30:53,828 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:30:53,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:30:53,830 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 10:30:53,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:30:53,840 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:30:53,841 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 10:30:53,843 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 10:30:53,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 10:30:53,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 10:30:53,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 10:30:53,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-05 10:30:53,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 3 [2019-08-05 10:30:53,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:30:53,877 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-05 10:30:53,877 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:30:53,877 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-05 10:30:53,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 10:30:53,878 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:30:53,878 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-05 10:30:53,878 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:30:53,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:30:53,879 INFO L82 PathProgramCache]: Analyzing trace with hash 28767664, now seen corresponding path program 1 times [2019-08-05 10:30:53,880 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:30:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:30:53,894 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 10:30:53,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:30:53,964 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:30:54,243 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 9 [2019-08-05 10:30:54,245 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:30:54,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-08-05 10:30:54,250 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:30:54,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2019-08-05 10:30:54,253 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:30:54,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:30:54,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:30:54,254 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 4 states. [2019-08-05 10:30:54,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:30:54,288 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-05 10:30:54,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:30:54,289 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-08-05 10:30:54,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:30:54,290 INFO L225 Difference]: With dead ends: 5 [2019-08-05 10:30:54,290 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:30:54,291 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:30:54,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:30:54,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:30:54,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:30:54,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:30:54,293 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-08-05 10:30:54,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:30:54,293 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:30:54,293 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:30:54,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:30:54,293 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:30:54,299 INFO L202 PluginConnector]: Adding new model GoannaDoubleFreeWithoutPointers.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:30:54 BoogieIcfgContainer [2019-08-05 10:30:54,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:30:54,301 INFO L168 Benchmark]: Toolchain (without parser) took 1206.17 ms. Allocated memory is still 138.4 MB. Free memory was 108.0 MB in the beginning and 69.5 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:54,302 INFO L168 Benchmark]: Boogie PL CUP Parser took 1.03 ms. Allocated memory is still 138.4 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:30:54,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.29 ms. Allocated memory is still 138.4 MB. Free memory was 108.0 MB in the beginning and 105.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:54,305 INFO L168 Benchmark]: Boogie Preprocessor took 24.78 ms. Allocated memory is still 138.4 MB. Free memory was 105.9 MB in the beginning and 105.0 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 7.1 GB. [2019-08-05 10:30:54,306 INFO L168 Benchmark]: RCFGBuilder took 297.07 ms. Allocated memory is still 138.4 MB. Free memory was 104.6 MB in the beginning and 94.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:54,307 INFO L168 Benchmark]: TraceAbstraction took 841.58 ms. Allocated memory is still 138.4 MB. Free memory was 94.3 MB in the beginning and 69.5 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:54,311 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 1.03 ms. Allocated memory is still 138.4 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.29 ms. Allocated memory is still 138.4 MB. Free memory was 108.0 MB in the beginning and 105.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.78 ms. Allocated memory is still 138.4 MB. Free memory was 105.9 MB in the beginning and 105.0 MB in the end (delta: 838.9 kB). Peak memory consumption was 838.9 kB. Max. memory is 7.1 GB. * RCFGBuilder took 297.07 ms. Allocated memory is still 138.4 MB. Free memory was 104.6 MB in the beginning and 94.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 841.58 ms. Allocated memory is still 138.4 MB. Free memory was 94.3 MB in the beginning and 69.5 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: 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, 0.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 3 SDslu, 2 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 104 SizeOfPredicates, 1 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...