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/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:58:25,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:58:25,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:58:25,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:58:25,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:58:25,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:58:25,129 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:58:25,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:58:25,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:58:25,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:58:25,138 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:58:25,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:58:25,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:58:25,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:58:25,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:58:25,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:58:25,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:58:25,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:58:25,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:58:25,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:58:25,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:58:25,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:58:25,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:58:25,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:58:25,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:58:25,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:58:25,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:58:25,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:58:25,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:58:25,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:58:25,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:58:25,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:58:25,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:58:25,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:58:25,178 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:58:25,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:58:25,179 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:58:25,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:58:25,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:58:25,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:58:25,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:58:25,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:58:25,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:58:25,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:58:25,238 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:58:25,239 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:58:25,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl [2019-08-05 10:58:25,240 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl' [2019-08-05 10:58:25,321 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:58:25,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:58:25,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:58:25,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:58:25,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:58:25,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:58:25,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:58:25,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:58:25,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:58:25,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/1) ... [2019-08-05 10:58:25,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:58:25,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:58:25,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:58:25,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:58:25,467 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (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 10:58:25,541 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 10:58:25,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:58:25,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:58:26,489 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:58:26,490 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:58:26,491 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:58:26 BoogieIcfgContainer [2019-08-05 10:58:26,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:58:26,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:58:26,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:58:26,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:58:26,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:58:25" (1/2) ... [2019-08-05 10:58:26,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7829490f and model type sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:58:26, skipping insertion in model container [2019-08-05 10:58:26,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:58:26" (2/2) ... [2019-08-05 10:58:26,499 INFO L109 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl [2019-08-05 10:58:26,509 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:58:26,520 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:58:26,532 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:58:26,556 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:58:26,556 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:58:26,557 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:58:26,557 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:58:26,557 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:58:26,557 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:58:26,557 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:58:26,558 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:58:26,558 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:58:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 10:58:26,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:58:26,580 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:58:26,581 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:58:26,583 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:58:26,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:58:26,589 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-08-05 10:58:26,634 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:58:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:58:27,342 WARN L254 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 113 conjunts are in the unsatisfiable core [2019-08-05 10:58:27,352 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:59:09,304 WARN L188 SmtUtils]: Spent 41.89 s on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2019-08-05 10:59:30,849 WARN L188 SmtUtils]: Spent 21.54 s on a formula simplification that was a NOOP. DAG size: 187 [2019-08-05 10:59:52,008 WARN L188 SmtUtils]: Spent 21.16 s on a formula simplification that was a NOOP. DAG size: 185 [2019-08-05 11:00:13,033 WARN L188 SmtUtils]: Spent 21.02 s on a formula simplification that was a NOOP. DAG size: 183 [2019-08-05 11:00:33,971 WARN L188 SmtUtils]: Spent 20.94 s on a formula simplification that was a NOOP. DAG size: 181 [2019-08-05 11:00:34,075 INFO L392 ElimStorePlain]: Different costs {1=[|ULTIMATE.start_ULTIMATE.dealloc_old_#valid|], 40=[|ULTIMATE.start_main_old_#valid|]} [2019-08-05 11:00:34,433 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2019-08-05 11:00:34,434 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:00:40,769 WARN L188 SmtUtils]: Spent 6.33 s on a formula simplification. DAG size of input: 170 DAG size of output: 162 [2019-08-05 11:00:40,769 INFO L567 ElimStorePlain]: treesize reduction 74, result has 100.0 percent of original size [2019-08-05 11:00:41,074 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:41,160 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:42,118 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:42,463 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:42,562 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:42,930 INFO L235 Elim1Store]: Index analysis took 576 ms [2019-08-05 11:00:43,007 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:00:43,009 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 81 [2019-08-05 11:00:43,011 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:00:43,012 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:00:43,015 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:00:46,215 WARN L188 SmtUtils]: Spent 3.20 s on a formula simplification that was a NOOP. DAG size: 166 [2019-08-05 11:00:46,216 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:00:46,272 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,285 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:46,286 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:46,291 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,294 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,297 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,331 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,391 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,407 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:46,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,454 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,488 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,523 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:46,533 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:46,560 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:46,602 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:46,606 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:00:47,268 WARN L188 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-08-05 11:00:47,269 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:00:47,284 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,285 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,286 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,303 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,312 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,322 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,322 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,323 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,359 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,393 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,418 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,440 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,461 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,483 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,528 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,565 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,585 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-05 11:00:47,586 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,594 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:00:47,610 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 11:00:48,382 WARN L188 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 66 [2019-08-05 11:00:48,382 INFO L567 ElimStorePlain]: treesize reduction 878579, result has 0.0 percent of original size [2019-08-05 11:00:48,386 INFO L496 ElimStorePlain]: Start of recursive call 1: 15 dim-0 vars, 2 dim-1 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2019-08-05 11:00:48,387 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 19 variables, input treesize:319726, output treesize:46 [2019-08-05 11:00:48,434 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 11:00:48,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:00:48,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:00:48,440 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:00:48,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:00:48,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:00:48,456 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 11:00:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:00:48,469 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-08-05 11:00:48,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:00:48,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 11:00:48,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:00:48,478 INFO L225 Difference]: With dead ends: 2 [2019-08-05 11:00:48,479 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:00:48,481 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:00:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:00:48,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:00:48,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:00:48,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:00:48,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-08-05 11:00:48,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:00:48,507 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:00:48,507 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:00:48,508 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:00:48,508 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:00:48,513 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_30.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:00:48 BoogieIcfgContainer [2019-08-05 11:00:48,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:00:48,515 INFO L168 Benchmark]: Toolchain (without parser) took 143192.48 ms. Allocated memory was 134.2 MB in the beginning and 270.0 MB in the end (delta: 135.8 MB). Free memory was 109.7 MB in the beginning and 199.9 MB in the end (delta: -90.1 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:48,515 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 134.2 MB. Free memory is still 112.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:00:48,516 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.91 ms. Allocated memory is still 134.2 MB. Free memory was 109.7 MB in the beginning and 107.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:48,517 INFO L168 Benchmark]: Boogie Preprocessor took 81.46 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 105.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:48,518 INFO L168 Benchmark]: RCFGBuilder took 1025.53 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 105.3 MB in the beginning and 126.3 MB in the end (delta: -21.0 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:48,519 INFO L168 Benchmark]: TraceAbstraction took 142020.26 ms. Allocated memory was 169.9 MB in the beginning and 270.0 MB in the end (delta: 100.1 MB). Free memory was 126.3 MB in the beginning and 199.9 MB in the end (delta: -73.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-08-05 11:00:48,523 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 0.20 ms. Allocated memory is still 134.2 MB. Free memory is still 112.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 60.91 ms. Allocated memory is still 134.2 MB. Free memory was 109.7 MB in the beginning and 107.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 81.46 ms. Allocated memory is still 134.2 MB. Free memory was 107.5 MB in the beginning and 105.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1025.53 ms. Allocated memory was 134.2 MB in the beginning and 169.9 MB in the end (delta: 35.7 MB). Free memory was 105.3 MB in the beginning and 126.3 MB in the end (delta: -21.0 MB). Peak memory consumption was 50.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 142020.26 ms. Allocated memory was 169.9 MB in the beginning and 270.0 MB in the end (delta: 100.1 MB). Free memory was 126.3 MB in the beginning and 199.9 MB in the end (delta: -73.5 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 483]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 141.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 141.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 1 QuantifiedInterpolants, 153 SizeOfPredicates, 54 NumberOfNonLiveVariables, 198 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...