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/BoogiePL/structexpander/StructFunctionAttributesTest.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:53:34,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:53:34,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:53:34,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:53:34,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:53:34,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:53:34,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:53:34,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:53:34,522 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:53:34,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:53:34,525 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:53:34,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:53:34,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:53:34,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:53:34,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:53:34,537 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:53:34,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:53:34,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:53:34,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:53:34,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:53:34,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:53:34,554 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:53:34,555 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:53:34,557 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:53:34,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 09:53:34,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:53:34,567 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:53:34,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:53:34,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:53:34,573 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:53:34,573 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:53:34,574 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:53:34,575 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:53:34,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:53:34,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:53:34,577 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:53:34,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:53:34,644 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:53:34,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:53:34,651 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:53:34,651 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:53:34,652 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/BoogiePL/structexpander/StructFunctionAttributesTest.bpl [2019-08-05 09:53:34,652 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/BoogiePL/structexpander/StructFunctionAttributesTest.bpl' [2019-08-05 09:53:34,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:53:34,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:53:34,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:53:34,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:53:34,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:53:34,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,746 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 09:53:34,746 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 09:53:34,746 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 09:53:34,748 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:53:34,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:53:34,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:53:34,750 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:53:34,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,776 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/1) ... [2019-08-05 09:53:34,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:53:34,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:53:34,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:53:34,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:53:34,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (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 09:53:34,849 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 09:53:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 09:53:34,849 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 09:53:35,155 INFO L275 CfgBuilder]: Using library mode [2019-08-05 09:53:35,155 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:53:35,156 INFO L202 PluginConnector]: Adding new model StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:53:35 BoogieIcfgContainer [2019-08-05 09:53:35,157 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:53:35,158 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:53:35,159 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:53:35,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:53:35,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:34" (1/2) ... [2019-08-05 09:53:35,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24ef2d5c and model type StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:53:35, skipping insertion in model container [2019-08-05 09:53:35,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "StructFunctionAttributesTest.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:53:35" (2/2) ... [2019-08-05 09:53:35,165 INFO L109 eAbstractionObserver]: Analyzing ICFG StructFunctionAttributesTest.bpl [2019-08-05 09:53:35,174 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:53:35,182 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-08-05 09:53:35,204 INFO L252 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-08-05 09:53:35,230 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:53:35,231 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:53:35,231 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:53:35,232 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:53:35,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:53:35,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:53:35,232 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:53:35,232 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:53:35,232 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:53:35,244 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-08-05 09:53:35,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:53:35,254 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:35,255 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:53:35,258 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:35,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:35,264 INFO L82 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2019-08-05 09:53:35,310 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:53:35,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:53:35,345 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:53:35,390 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 09:53:35,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:53:35,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:53:35,396 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:53:35,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:53:35,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:35,412 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2019-08-05 09:53:35,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:53:35,437 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-08-05 09:53:35,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:53:35,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:53:35,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:53:35,449 INFO L225 Difference]: With dead ends: 9 [2019-08-05 09:53:35,450 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 09:53:35,452 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 09:53:35,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 09:53:35,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-08-05 09:53:35,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-08-05 09:53:35,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2019-08-05 09:53:35,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 2 [2019-08-05 09:53:35,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:53:35,486 INFO L475 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2019-08-05 09:53:35,486 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:53:35,486 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-08-05 09:53:35,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:53:35,487 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:35,487 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:53:35,487 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:35,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:35,488 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2019-08-05 09:53:35,490 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:35,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:53:35,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:53:35,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:53:35,550 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 09:53:35,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:53:35,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:53:35,553 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:53:35,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:53:35,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:35,554 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 3 states. [2019-08-05 09:53:35,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:53:35,569 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-08-05 09:53:35,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:53:35,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 09:53:35,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:53:35,571 INFO L225 Difference]: With dead ends: 7 [2019-08-05 09:53:35,571 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 09:53:35,573 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 09:53:35,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 09:53:35,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 09:53:35,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 09:53:35,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2019-08-05 09:53:35,575 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 3 [2019-08-05 09:53:35,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:53:35,576 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2019-08-05 09:53:35,576 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:53:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-08-05 09:53:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 09:53:35,577 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:35,577 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 09:53:35,578 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:35,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:35,578 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2019-08-05 09:53:35,580 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:53:35,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:53:35,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:53:35,641 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 09:53:35,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:53:35,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:53:35,642 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:53:35,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:53:35,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:35,646 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand 3 states. [2019-08-05 09:53:35,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:53:35,668 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-08-05 09:53:35,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:53:35,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 09:53:35,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:53:35,671 INFO L225 Difference]: With dead ends: 6 [2019-08-05 09:53:35,671 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 09:53:35,672 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 09:53:35,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 09:53:35,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 09:53:35,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 09:53:35,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2019-08-05 09:53:35,677 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 4 [2019-08-05 09:53:35,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:53:35,677 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2019-08-05 09:53:35,678 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:53:35,678 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2019-08-05 09:53:35,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 09:53:35,680 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:35,680 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-08-05 09:53:35,681 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:35,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:35,681 INFO L82 PathProgramCache]: Analyzing trace with hash 28692770, now seen corresponding path program 1 times [2019-08-05 09:53:35,683 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:35,684 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Undeclared function symbol (bv2) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:355) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.TermTransferrer.convertApplicationTerm(TermTransferrer.java:176) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$BuildApplicationTerm.walk(TermTransformer.java:319) 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.TermTransformer.transform(TermTransformer.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedSsaBuilder.transferToCurrentScriptIfNecessary(NestedSsaBuilder.java:505) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedSsaBuilder.access$0(NestedSsaBuilder.java:502) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedSsaBuilder$VariableVersioneer.(NestedSsaBuilder.java:531) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedSsaBuilder.buildSSA(NestedSsaBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedSsaBuilder.(NestedSsaBuilder.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:276) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheck.(TraceCheck.java:214) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:134) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-08-05 09:53:35,698 INFO L168 Benchmark]: Toolchain (without parser) took 993.05 ms. Allocated memory is still 131.6 MB. Free memory was 108.7 MB in the beginning and 71.0 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:35,700 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 131.6 MB. Free memory was 109.9 MB in the beginning and 109.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 09:53:35,701 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.24 ms. Allocated memory is still 131.6 MB. Free memory was 108.5 MB in the beginning and 106.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:35,702 INFO L168 Benchmark]: Boogie Preprocessor took 29.11 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 105.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:35,704 INFO L168 Benchmark]: RCFGBuilder took 378.20 ms. Allocated memory is still 131.6 MB. Free memory was 105.6 MB in the beginning and 95.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:35,705 INFO L168 Benchmark]: TraceAbstraction took 535.13 ms. Allocated memory is still 131.6 MB. Free memory was 95.7 MB in the beginning and 71.0 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:35,717 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.25 ms. Allocated memory is still 131.6 MB. Free memory was 109.9 MB in the beginning and 109.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.24 ms. Allocated memory is still 131.6 MB. Free memory was 108.5 MB in the beginning and 106.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.11 ms. Allocated memory is still 131.6 MB. Free memory was 106.7 MB in the beginning and 105.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 378.20 ms. Allocated memory is still 131.6 MB. Free memory was 105.6 MB in the beginning and 95.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 535.13 ms. Allocated memory is still 131.6 MB. Free memory was 95.7 MB in the beginning and 71.0 MB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Undeclared function symbol (bv2) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Undeclared function symbol (bv2): de.uni_freiburg.informatik.ultimate.logic.NoopScript.term(NoopScript.java:355) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...