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/heapseparator/speedup-poc03-12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:57:47,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:57:47,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:57:48,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:57:48,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:57:48,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:57:48,010 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:57:48,012 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:57:48,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:57:48,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:57:48,015 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:57:48,016 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:57:48,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:57:48,017 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:57:48,018 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:57:48,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:57:48,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:57:48,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:57:48,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:57:48,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:57:48,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:57:48,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:57:48,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:57:48,029 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:57:48,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:57:48,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:57:48,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:57:48,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:57:48,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:57:48,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:57:48,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:57:48,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:57:48,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:57:48,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:57:48,038 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:57:48,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:57:48,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:57:48,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:57:48,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:57:48,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:57:48,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:57:48,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:57:48,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:57:48,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:57:48,103 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:57:48,103 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:57:48,104 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc03-12.bpl [2019-08-05 09:57:48,105 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc03-12.bpl' [2019-08-05 09:57:48,165 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:57:48,166 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:57:48,167 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:57:48,168 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:57:48,169 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:57:48,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:57:48,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:57:48,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:57:48,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:57:48,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/1) ... [2019-08-05 09:57:48,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:57:48,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:57:48,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:57:48,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:57:48,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (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 09:57:48,340 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-08-05 09:57:48,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:57:48,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:57:48,867 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:57:48,868 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-05 09:57:48,869 INFO L202 PluginConnector]: Adding new model speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:57:48 BoogieIcfgContainer [2019-08-05 09:57:48,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:57:48,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:57:48,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:57:48,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:57:48,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:57:48" (1/2) ... [2019-08-05 09:57:48,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f5782 and model type speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:57:48, skipping insertion in model container [2019-08-05 09:57:48,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc03-12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:57:48" (2/2) ... [2019-08-05 09:57:48,878 INFO L109 eAbstractionObserver]: Analyzing ICFG speedup-poc03-12.bpl [2019-08-05 09:57:48,887 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:57:48,895 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2019-08-05 09:57:48,911 INFO L252 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2019-08-05 09:57:48,933 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:57:48,934 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:57:48,934 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:57:48,934 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:57:48,934 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:57:48,935 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:57:48,935 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:57:48,935 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:57:48,935 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:57:48,948 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-08-05 09:57:48,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:57:48,956 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:57:48,957 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:57:48,960 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr11ASSERT_VIOLATIONASSERT, ULTIMATE.startErr10ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:57:48,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:57:48,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1012, now seen corresponding path program 1 times [2019-08-05 09:57:49,025 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:57:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:57:49,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 09:57:49,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:57:49,199 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_64|], 6=[|v_#valid_14|]} [2019-08-05 09:57:49,231 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:49,255 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:49,267 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:49,270 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:49,272 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:51,043 WARN L188 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 231 DAG size of output: 36 [2019-08-05 09:57:51,045 INFO L341 Elim1Store]: treesize reduction 1335, result has 4.0 percent of original size [2019-08-05 09:57:51,046 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 11 case distinctions, treesize of input 39 treesize of output 61 [2019-08-05 09:57:51,047 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 09:57:51,091 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:57:51,156 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:57:51,157 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 31 treesize of output 35 [2019-08-05 09:57:51,158 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:51,161 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 09:57:51,250 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:57:51,260 INFO L496 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 2 dim-1 vars, End of recursive call: 11 dim-0 vars, and 1 xjuncts. [2019-08-05 09:57:51,261 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 13 variables, input treesize:65, output treesize:81 [2019-08-05 09:57:51,331 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 09:57:51,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:57:51,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:57:51,337 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:57:51,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:57:51,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:57:51,355 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-08-05 09:57:51,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:57:51,754 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2019-08-05 09:57:51,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:57:51,756 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:57:51,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:57:51,766 INFO L225 Difference]: With dead ends: 50 [2019-08-05 09:57:51,766 INFO L226 Difference]: Without dead ends: 48 [2019-08-05 09:57:51,768 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 09:57:51,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-08-05 09:57:51,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 26. [2019-08-05 09:57:51,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-08-05 09:57:51,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-08-05 09:57:51,801 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 2 [2019-08-05 09:57:51,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:57:51,801 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-08-05 09:57:51,802 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:57:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-08-05 09:57:51,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:57:51,802 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:57:51,803 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:57:51,803 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr11ASSERT_VIOLATIONASSERT, ULTIMATE.startErr10ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr9ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr7ASSERT_VIOLATIONASSERT, ULTIMATE.startErr8ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:57:51,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:57:51,804 INFO L82 PathProgramCache]: Analyzing trace with hash 31456, now seen corresponding path program 1 times [2019-08-05 09:57:51,805 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:57:51,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:57:51,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 09:57:51,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:57:51,871 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_int_65|], 26=[|v_#valid_15|]} [2019-08-05 09:57:51,902 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:51,911 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:51,940 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:51,942 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:51,947 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:51,956 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:51,958 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:51,994 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,017 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,019 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,021 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,023 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,026 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,028 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,031 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,036 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,037 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,039 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:57:52,044 INFO L235 Elim1Store]: Index analysis took 156 ms [2019-08-05 09:57:52,578 WARN L188 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 36 [2019-08-05 09:57:52,578 INFO L341 Elim1Store]: treesize reduction 879, result has 6.0 percent of original size [2019-08-05 09:57:52,579 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 20 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 11 case distinctions, treesize of input 39 treesize of output 61 [2019-08-05 09:57:52,580 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 09:57:52,644 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:57:52,821 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:57:52,822 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 101 treesize of output 141 [2019-08-05 09:57:52,824 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,825 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,826 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,827 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,828 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,829 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,830 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,831 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,832 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,834 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,835 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,836 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,838 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,839 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,840 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,841 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,842 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,844 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,845 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,846 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,847 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,848 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,849 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,850 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,850 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 09:57:52,852 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 09:57:53,015 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2019-08-05 09:57:53,015 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:57:53,019 INFO L496 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 2 dim-1 vars, End of recursive call: 11 dim-0 vars, and 1 xjuncts. [2019-08-05 09:57:53,020 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 13 variables, input treesize:120, output treesize:141 [2019-08-05 09:58:01,382 WARN L193 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) stderr output: (error "out of memory") [2019-08-05 09:58:01,383 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:207) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:224) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:153) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:118) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:178) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:159) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:129) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:581) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:204) ... 46 more [2019-08-05 09:58:01,388 INFO L168 Benchmark]: Toolchain (without parser) took 13221.87 ms. Allocated memory was 141.0 MB in the beginning and 242.2 MB in the end (delta: 101.2 MB). Free memory was 109.1 MB in the beginning and 139.2 MB in the end (delta: -30.2 MB). Peak memory consumption was 71.0 MB. Max. memory is 7.1 GB. [2019-08-05 09:58:01,389 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.70 ms. Allocated memory is still 141.0 MB. Free memory was 110.5 MB in the beginning and 110.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 09:58:01,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.18 ms. Allocated memory is still 141.0 MB. Free memory was 109.1 MB in the beginning and 106.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 09:58:01,391 INFO L168 Benchmark]: Boogie Preprocessor took 39.36 ms. Allocated memory is still 141.0 MB. Free memory was 106.8 MB in the beginning and 105.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-08-05 09:58:01,392 INFO L168 Benchmark]: RCFGBuilder took 589.98 ms. Allocated memory is still 141.0 MB. Free memory was 105.5 MB in the beginning and 88.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:58:01,395 INFO L168 Benchmark]: TraceAbstraction took 12515.26 ms. Allocated memory was 141.0 MB in the beginning and 242.2 MB in the end (delta: 101.2 MB). Free memory was 88.5 MB in the beginning and 139.2 MB in the end (delta: -50.7 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB. [2019-08-05 09:58:01,406 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 0.70 ms. Allocated memory is still 141.0 MB. Free memory was 110.5 MB in the beginning and 110.3 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 68.18 ms. Allocated memory is still 141.0 MB. Free memory was 109.1 MB in the beginning and 106.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.36 ms. Allocated memory is still 141.0 MB. Free memory was 106.8 MB in the beginning and 105.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 589.98 ms. Allocated memory is still 141.0 MB. Free memory was 105.5 MB in the beginning and 88.7 MB in the end (delta: 16.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12515.26 ms. Allocated memory was 141.0 MB in the beginning and 242.2 MB in the end (delta: 101.2 MB). Free memory was 88.5 MB in the beginning and 139.2 MB in the end (delta: -50.7 MB). Peak memory consumption was 50.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:207) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...