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/Arrays/regression/MultipleStores.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:19,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:19,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:19,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:19,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:19,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:19,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:19,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:19,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:19,575 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:19,576 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:19,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:19,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:19,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:19,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:19,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:19,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:19,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:19,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:19,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:19,604 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:19,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:19,606 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:19,607 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:19,609 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:19,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:19,610 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:19,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:19,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:19,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:19,612 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:19,613 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:19,614 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:19,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:19,615 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:19,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:19,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:19,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:19,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:19,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:19,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:19,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:19,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:19,668 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:19,669 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:19,670 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:19,671 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/Arrays/regression/MultipleStores.bpl [2019-08-05 09:52:19,671 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/Arrays/regression/MultipleStores.bpl' [2019-08-05 09:52:19,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:19,708 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:19,708 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:19,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:19,709 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:19,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,741 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 09:52:19,741 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 09:52:19,741 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 09:52:19,744 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:19,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:19,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:19,746 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:19,758 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/1) ... [2019-08-05 09:52:19,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:19,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:19,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:19,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:19,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (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 09:52:19,839 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 09:52:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 09:52:19,839 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 09:52:20,065 INFO L275 CfgBuilder]: Using library mode [2019-08-05 09:52:20,066 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:52:20,067 INFO L202 PluginConnector]: Adding new model MultipleStores.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:20 BoogieIcfgContainer [2019-08-05 09:52:20,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:20,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:20,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:20,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:20,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:19" (1/2) ... [2019-08-05 09:52:20,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ced82e7 and model type MultipleStores.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:20, skipping insertion in model container [2019-08-05 09:52:20,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "MultipleStores.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:20" (2/2) ... [2019-08-05 09:52:20,076 INFO L109 eAbstractionObserver]: Analyzing ICFG MultipleStores.bpl [2019-08-05 09:52:20,085 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:20,091 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-08-05 09:52:20,107 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-08-05 09:52:20,131 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:20,131 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:20,132 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:20,132 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:20,132 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:20,132 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:20,132 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:20,132 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:20,133 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-08-05 09:52:20,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:52:20,154 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:20,155 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:52:20,157 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:20,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:20,163 INFO L82 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2019-08-05 09:52:20,213 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:20,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:20,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:20,358 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 09:52:20,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:20,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:20,370 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:20,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:20,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:20,394 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2019-08-05 09:52:20,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:20,482 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-08-05 09:52:20,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:20,484 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:52:20,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:20,494 INFO L225 Difference]: With dead ends: 7 [2019-08-05 09:52:20,494 INFO L226 Difference]: Without dead ends: 6 [2019-08-05 09:52:20,496 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 09:52:20,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-05 09:52:20,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-05 09:52:20,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 09:52:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5 transitions. [2019-08-05 09:52:20,530 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 5 transitions. Word has length 2 [2019-08-05 09:52:20,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:20,531 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 5 transitions. [2019-08-05 09:52:20,531 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:20,531 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2019-08-05 09:52:20,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:52:20,532 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:20,532 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:52:20,533 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:20,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:20,533 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2019-08-05 09:52:20,534 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:20,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:20,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:20,637 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-05 09:52:20,638 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 09:52:20,703 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:52:20,703 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 09:52:20,704 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-08-05 09:52:20,749 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 09:52:20,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:20,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:20,752 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:20,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:20,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:20,753 INFO L87 Difference]: Start difference. First operand 6 states and 5 transitions. Second operand 3 states. [2019-08-05 09:52:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:20,772 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2019-08-05 09:52:20,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:20,772 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 09:52:20,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:20,773 INFO L225 Difference]: With dead ends: 5 [2019-08-05 09:52:20,773 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 09:52:20,774 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 09:52:20,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 09:52:20,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 09:52:20,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 09:52:20,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2019-08-05 09:52:20,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2019-08-05 09:52:20,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:20,777 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2019-08-05 09:52:20,777 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:20,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2019-08-05 09:52:20,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 09:52:20,777 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:20,778 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 09:52:20,778 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:20,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:20,779 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2019-08-05 09:52:20,780 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:20,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:20,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:20,831 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-05 09:52:20,832 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 09:52:20,850 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 09:52:20,851 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 09:52:20,851 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2019-08-05 09:52:20,879 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 09:52:20,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:20,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:52:20,880 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:20,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:20,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:20,881 INFO L87 Difference]: Start difference. First operand 5 states and 4 transitions. Second operand 3 states. [2019-08-05 09:52:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:20,906 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-05 09:52:20,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:20,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 09:52:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:20,907 INFO L225 Difference]: With dead ends: 4 [2019-08-05 09:52:20,907 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 09:52:20,908 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 09:52:20,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 09:52:20,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 09:52:20,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 09:52:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 09:52:20,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-08-05 09:52:20,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:20,909 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 09:52:20,909 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:20,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 09:52:20,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 09:52:20,915 INFO L202 PluginConnector]: Adding new model MultipleStores.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:20 BoogieIcfgContainer [2019-08-05 09:52:20,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:20,918 INFO L168 Benchmark]: Toolchain (without parser) took 1209.93 ms. Allocated memory is still 135.3 MB. Free memory was 109.3 MB in the beginning and 63.7 MB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:20,918 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory is still 110.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 09:52:20,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.33 ms. Allocated memory is still 135.3 MB. Free memory was 109.3 MB in the beginning and 107.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:20,921 INFO L168 Benchmark]: Boogie Preprocessor took 24.34 ms. Allocated memory is still 135.3 MB. Free memory was 107.2 MB in the beginning and 106.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 7.1 GB. [2019-08-05 09:52:20,921 INFO L168 Benchmark]: RCFGBuilder took 297.42 ms. Allocated memory is still 135.3 MB. Free memory was 106.3 MB in the beginning and 96.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:20,922 INFO L168 Benchmark]: TraceAbstraction took 846.97 ms. Allocated memory is still 135.3 MB. Free memory was 95.9 MB in the beginning and 64.1 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:20,926 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 0.21 ms. Allocated memory is still 135.3 MB. Free memory is still 110.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.33 ms. Allocated memory is still 135.3 MB. Free memory was 109.3 MB in the beginning and 107.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.34 ms. Allocated memory is still 135.3 MB. Free memory was 107.2 MB in the beginning and 106.3 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 7.1 GB. * RCFGBuilder took 297.42 ms. Allocated memory is still 135.3 MB. Free memory was 106.3 MB in the beginning and 96.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 846.97 ms. Allocated memory is still 135.3 MB. Free memory was 95.9 MB in the beginning and 64.1 MB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 31]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 29]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 3 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 0 SDs, 0 SdLazy, 10 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...