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-poc-dd-7-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:56:09,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:56:09,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:56:09,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:56:09,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:56:09,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:56:09,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:56:09,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:56:09,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:56:09,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:56:09,160 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:56:09,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:56:09,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:56:09,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:56:09,162 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:56:09,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:56:09,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:56:09,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:56:09,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:56:09,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:56:09,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:56:09,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:56:09,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:56:09,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:56:09,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:56:09,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:56:09,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:56:09,184 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:56:09,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:56:09,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:56:09,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:56:09,187 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:56:09,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:56:09,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:56:09,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:56:09,193 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:56:09,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:56:09,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:56:09,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:56:09,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:56:09,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:56:09,250 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:56:09,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:56:09,275 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:56:09,277 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:56:09,278 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:56:09,279 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl [2019-08-05 09:56:09,279 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-7-limited.bpl' [2019-08-05 09:56:09,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:56:09,327 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:56:09,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:56:09,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:56:09,328 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:56:09,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:56:09,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:56:09,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:56:09,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:56:09,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/1) ... [2019-08-05 09:56:09,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:56:09,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:56:09,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:56:09,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:56:09,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (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 09:56:09,502 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-08-05 09:56:09,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:56:09,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:56:09,890 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:56:09,890 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-05 09:56:09,892 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:56:09 BoogieIcfgContainer [2019-08-05 09:56:09,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:56:09,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:56:09,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:56:09,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:56:09,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:56:09" (1/2) ... [2019-08-05 09:56:09,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e4633d and model type speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:56:09, skipping insertion in model container [2019-08-05 09:56:09,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-7-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:56:09" (2/2) ... [2019-08-05 09:56:09,901 INFO L109 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-7-limited.bpl [2019-08-05 09:56:09,913 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:56:09,929 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-08-05 09:56:09,963 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-08-05 09:56:09,992 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:56:09,993 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:56:09,993 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:56:09,993 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:56:09,993 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:56:09,993 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:56:09,994 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:56:09,994 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:56:09,994 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:56:10,009 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-08-05 09:56:10,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:56:10,018 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:56:10,019 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:56:10,021 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:56:10,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:56:10,027 INFO L82 PathProgramCache]: Analyzing trace with hash 992, now seen corresponding path program 1 times [2019-08-05 09:56:10,077 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:56:10,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:56:10,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 8 conjunts are in the unsatisfiable core [2019-08-05 09:56:10,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:56:10,238 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,242 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,248 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,250 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,257 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,272 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,273 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,282 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,289 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,291 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,301 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,303 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,306 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,338 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,340 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,342 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,346 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,350 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:10,350 INFO L235 Elim1Store]: Index analysis took 120 ms [2019-08-05 09:56:10,368 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2019-08-05 09:56:10,369 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:10,530 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-08-05 09:56:10,530 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:56:10,538 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-08-05 09:56:10,539 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:43, output treesize:54 [2019-08-05 09:56:10,604 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 09:56:10,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:56:10,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:56:10,611 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:56:10,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:56:10,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:56:10,629 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-08-05 09:56:11,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:56:11,093 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2019-08-05 09:56:11,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:56:11,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:56:11,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:56:11,110 INFO L225 Difference]: With dead ends: 30 [2019-08-05 09:56:11,110 INFO L226 Difference]: Without dead ends: 28 [2019-08-05 09:56:11,117 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 09:56:11,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-08-05 09:56:11,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 16. [2019-08-05 09:56:11,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-08-05 09:56:11,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-08-05 09:56:11,162 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 2 [2019-08-05 09:56:11,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:56:11,162 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-08-05 09:56:11,163 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:56:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-08-05 09:56:11,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:56:11,163 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:56:11,163 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:56:11,164 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:56:11,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:56:11,165 INFO L82 PathProgramCache]: Analyzing trace with hash 30816, now seen corresponding path program 1 times [2019-08-05 09:56:11,166 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:56:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:56:11,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 7 conjunts are in the unsatisfiable core [2019-08-05 09:56:11,224 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:56:11,269 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,276 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,280 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,287 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,302 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,307 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,308 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,309 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,336 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,361 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,385 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,407 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,429 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,454 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:11,455 INFO L235 Elim1Store]: Index analysis took 199 ms [2019-08-05 09:56:11,539 INFO L341 Elim1Store]: treesize reduction 125, result has 3.8 percent of original size [2019-08-05 09:56:11,541 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 15 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 36 [2019-08-05 09:56:11,542 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:11,674 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2019-08-05 09:56:11,675 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:56:11,679 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 1 xjuncts. [2019-08-05 09:56:11,679 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 7 variables, input treesize:40, output treesize:51 [2019-08-05 09:56:11,782 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 09:56:11,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:56:11,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:56:11,785 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:56:11,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:56:11,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:56:11,786 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2019-08-05 09:56:11,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:56:11,942 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2019-08-05 09:56:11,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:56:11,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 09:56:11,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:56:11,944 INFO L225 Difference]: With dead ends: 27 [2019-08-05 09:56:11,945 INFO L226 Difference]: Without dead ends: 27 [2019-08-05 09:56:11,946 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 09:56:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-08-05 09:56:11,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 17. [2019-08-05 09:56:11,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-08-05 09:56:11,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2019-08-05 09:56:11,950 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 3 [2019-08-05 09:56:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:56:11,950 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2019-08-05 09:56:11,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:56:11,951 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2019-08-05 09:56:11,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:56:11,951 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:56:11,951 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:56:11,952 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr6ASSERT_VIOLATIONASSERT, ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:56:11,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:56:11,952 INFO L82 PathProgramCache]: Analyzing trace with hash 31310, now seen corresponding path program 1 times [2019-08-05 09:56:11,953 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:56:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:56:12,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 9 conjunts are in the unsatisfiable core [2019-08-05 09:56:12,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:56:12,058 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,060 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,065 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,066 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,067 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,068 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,069 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,070 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,071 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,073 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,074 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,075 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,077 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,077 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,079 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,080 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,081 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,083 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,084 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,086 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,087 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,094 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2019-08-05 09:56:12,094 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:12,180 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:56:12,181 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 09:56:12,182 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:54 [2019-08-05 09:56:12,401 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2019-08-05 09:56:12,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 7 terms [2019-08-05 09:56:12,483 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,512 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,534 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,559 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,570 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,571 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,573 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,575 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,577 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,580 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,582 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,584 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,586 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,587 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,589 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,590 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,593 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,597 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,598 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,670 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,692 INFO L235 Elim1Store]: Index analysis took 222 ms [2019-08-05 09:56:12,697 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2019-08-05 09:56:12,699 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:12,724 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,725 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,734 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,736 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,738 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,739 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,741 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,756 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,763 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,765 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,767 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,768 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,770 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,772 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,773 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,775 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,825 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,835 INFO L235 Elim1Store]: Index analysis took 111 ms [2019-08-05 09:56:12,840 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2019-08-05 09:56:12,842 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:12,874 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,883 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,885 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,886 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,887 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,889 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,890 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,892 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,894 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,896 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,897 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,899 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,901 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,902 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,904 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,905 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,907 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,908 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,910 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,914 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,956 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:12,963 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2019-08-05 09:56:12,966 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:13,001 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,003 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,004 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,005 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,006 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,008 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,009 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,011 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,013 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,014 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,041 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,042 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,043 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,045 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,046 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,048 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,049 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,051 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,052 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,054 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,059 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,117 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,118 INFO L235 Elim1Store]: Index analysis took 120 ms [2019-08-05 09:56:13,121 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2019-08-05 09:56:13,123 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:13,162 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,163 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,168 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,169 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,170 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,171 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,172 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,173 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,174 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,176 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,177 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,179 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,181 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,183 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,184 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,186 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,187 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,188 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,190 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,191 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,203 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,242 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2019-08-05 09:56:13,243 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:13,282 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,283 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,284 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,297 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,298 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,300 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,300 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,310 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,311 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,312 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,313 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,314 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,316 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,318 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,319 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,320 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,322 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,323 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,324 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,326 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,327 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,386 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,391 INFO L235 Elim1Store]: Index analysis took 118 ms [2019-08-05 09:56:13,396 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2019-08-05 09:56:13,397 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:13,441 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,442 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,443 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,464 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,465 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,466 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,469 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,470 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,471 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,480 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,481 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,482 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,483 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,485 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,486 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,487 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,489 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,494 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,495 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,498 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 09:56:13,502 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2019-08-05 09:56:13,504 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-08-05 09:56:13,811 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2019-08-05 09:56:13,811 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:56:13,820 INFO L496 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 1 dim-1 vars, End of recursive call: 42 dim-0 vars, and 7 xjuncts. [2019-08-05 09:56:13,820 INFO L221 ElimStorePlain]: Needed 8 recursive calls to eliminate 7 variables, input treesize:449, output treesize:385 [2019-08-05 09:56:52,604 WARN L193 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000) stderr output: (error "out of memory") [2019-08-05 09:56:52,605 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:626) 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 09:56:52,610 INFO L168 Benchmark]: Toolchain (without parser) took 43283.03 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 109.2 MB in the beginning and 95.1 MB in the end (delta: 14.1 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2019-08-05 09:56:52,611 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 110.6 MB in the beginning and 110.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 09:56:52,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.14 ms. Allocated memory is still 134.2 MB. Free memory was 109.2 MB in the beginning and 107.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:56:52,614 INFO L168 Benchmark]: Boogie Preprocessor took 38.09 ms. Allocated memory is still 134.2 MB. Free memory was 107.0 MB in the beginning and 105.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:56:52,615 INFO L168 Benchmark]: RCFGBuilder took 467.52 ms. Allocated memory is still 134.2 MB. Free memory was 105.7 MB in the beginning and 92.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2019-08-05 09:56:52,616 INFO L168 Benchmark]: TraceAbstraction took 42714.23 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 95.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 59.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:56:52,620 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 110.6 MB in the beginning and 110.4 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 58.14 ms. Allocated memory is still 134.2 MB. Free memory was 109.2 MB in the beginning and 107.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.09 ms. Allocated memory is still 134.2 MB. Free memory was 107.0 MB in the beginning and 105.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.52 ms. Allocated memory is still 134.2 MB. Free memory was 105.7 MB in the beginning and 92.3 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 42714.23 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 91.9 MB in the beginning and 95.1 MB in the end (delta: -3.2 MB). Peak memory consumption was 59.7 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...