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/sifa/03-enter-calls_random_modifications.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:53:31,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:53:31,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:53:31,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:53:31,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:53:31,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:53:31,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:53:31,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:53:31,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:53:31,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:53:31,672 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:53:31,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:53:31,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:53:31,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:53:31,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:53:31,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:53:31,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:53:31,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:53:31,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:53:31,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:53:31,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:53:31,685 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:53:31,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:53:31,687 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:53:31,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-05 09:53:31,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:53:31,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:53:31,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:53:31,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:53:31,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:53:31,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:53:31,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:53:31,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:53:31,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:53:31,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:53:31,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:53:31,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:53:31,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:53:31,762 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:53:31,764 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:53:31,765 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:53:31,767 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/BoogiePL/sifa/03-enter-calls_random_modifications.bpl [2019-08-05 09:53:31,767 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/BoogiePL/sifa/03-enter-calls_random_modifications.bpl' [2019-08-05 09:53:31,805 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:53:31,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:53:31,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:53:31,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:53:31,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:53:31,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:53:31,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:53:31,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:53:31,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:53:31,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,873 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,883 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/1) ... [2019-08-05 09:53:31,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:53:31,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:53:31,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:53:31,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:53:31,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (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 09:53:31,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 09:53:31,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 09:53:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 09:53:32,168 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 09:53:32,169 INFO L283 CfgBuilder]: Removed 10 assume(true) statements. [2019-08-05 09:53:32,170 INFO L202 PluginConnector]: Adding new model 03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:53:32 BoogieIcfgContainer [2019-08-05 09:53:32,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:53:32,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:53:32,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:53:32,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:53:32,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:53:31" (1/2) ... [2019-08-05 09:53:32,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@387c39d6 and model type 03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:53:32, skipping insertion in model container [2019-08-05 09:53:32,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:53:32" (2/2) ... [2019-08-05 09:53:32,178 INFO L109 eAbstractionObserver]: Analyzing ICFG 03-enter-calls_random_modifications.bpl [2019-08-05 09:53:32,188 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:53:32,195 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-08-05 09:53:32,212 INFO L252 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-08-05 09:53:32,238 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:53:32,239 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:53:32,239 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:53:32,239 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:53:32,239 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:53:32,240 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:53:32,240 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:53:32,240 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:53:32,240 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:53:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-08-05 09:53:32,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:53:32,263 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:32,265 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:53:32,269 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:32,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1026, now seen corresponding path program 1 times [2019-08-05 09:53:32,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:32,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:53:32,346 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:53:32,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:53:32,382 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 09:53:32,385 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:53:32,385 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:53:32,389 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:53:32,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:53:32,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:32,408 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2019-08-05 09:53:32,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:53:32,478 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-08-05 09:53:32,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:53:32,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:53:32,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:53:32,491 INFO L225 Difference]: With dead ends: 14 [2019-08-05 09:53:32,492 INFO L226 Difference]: Without dead ends: 12 [2019-08-05 09:53:32,494 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 09:53:32,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-05 09:53:32,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-08-05 09:53:32,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-08-05 09:53:32,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-08-05 09:53:32,527 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 2 [2019-08-05 09:53:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:53:32,527 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-08-05 09:53:32,527 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:53:32,528 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-08-05 09:53:32,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 09:53:32,528 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:32,528 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 09:53:32,529 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:32,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:32,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1154, now seen corresponding path program 1 times [2019-08-05 09:53:32,531 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:53:32,533 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:53:32,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:53:32,586 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 09:53:32,587 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:53:32,587 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 09:53:32,589 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:53:32,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:53:32,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:32,590 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states. [2019-08-05 09:53:32,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:53:32,634 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-08-05 09:53:32,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:53:32,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 09:53:32,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:53:32,636 INFO L225 Difference]: With dead ends: 11 [2019-08-05 09:53:32,637 INFO L226 Difference]: Without dead ends: 11 [2019-08-05 09:53:32,638 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 09:53:32,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-08-05 09:53:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-08-05 09:53:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 09:53:32,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-05 09:53:32,642 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 2 [2019-08-05 09:53:32,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:53:32,642 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-05 09:53:32,642 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:53:32,643 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-05 09:53:32,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 09:53:32,644 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:32,644 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 09:53:32,644 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:32,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:32,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1110308, now seen corresponding path program 1 times [2019-08-05 09:53:32,646 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:53:32,653 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 09:53:32,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:53:32,711 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 09:53:32,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:53:32,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 09:53:32,712 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:53:32,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:53:32,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:32,713 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 3 states. [2019-08-05 09:53:32,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:53:32,756 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 09:53:32,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:53:32,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-08-05 09:53:32,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:53:32,757 INFO L225 Difference]: With dead ends: 10 [2019-08-05 09:53:32,758 INFO L226 Difference]: Without dead ends: 9 [2019-08-05 09:53:32,758 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 09:53:32,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-05 09:53:32,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-05 09:53:32,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 09:53:32,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 09:53:32,761 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2019-08-05 09:53:32,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:53:32,761 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 09:53:32,761 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:53:32,762 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 09:53:32,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 09:53:32,762 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:53:32,763 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-08-05 09:53:32,763 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:53:32,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:53:32,764 INFO L82 PathProgramCache]: Analyzing trace with hash 34425583, now seen corresponding path program 1 times [2019-08-05 09:53:32,765 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:53:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:53:32,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:53:32,772 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:53:32,802 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 09:53:32,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:53:32,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 09:53:32,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:53:32,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:53:32,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:53:32,804 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 3 states. [2019-08-05 09:53:32,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:53:32,821 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-05 09:53:32,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:53:32,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-08-05 09:53:32,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:53:32,822 INFO L225 Difference]: With dead ends: 7 [2019-08-05 09:53:32,822 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 09:53:32,823 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 09:53:32,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 09:53:32,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 09:53:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 09:53:32,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 09:53:32,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-08-05 09:53:32,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:53:32,825 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 09:53:32,825 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:53:32,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 09:53:32,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 09:53:32,831 INFO L202 PluginConnector]: Adding new model 03-enter-calls_random_modifications.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:53:32 BoogieIcfgContainer [2019-08-05 09:53:32,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:53:32,834 INFO L168 Benchmark]: Toolchain (without parser) took 1026.11 ms. Allocated memory is still 140.0 MB. Free memory was 109.4 MB in the beginning and 66.7 MB in the end (delta: 42.7 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:32,835 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 110.7 MB in the beginning and 110.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 09:53:32,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.31 ms. Allocated memory is still 140.0 MB. Free memory was 109.4 MB in the beginning and 107.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:32,837 INFO L168 Benchmark]: Boogie Preprocessor took 22.85 ms. Allocated memory is still 140.0 MB. Free memory was 107.3 MB in the beginning and 106.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:32,838 INFO L168 Benchmark]: RCFGBuilder took 285.30 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 96.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:32,839 INFO L168 Benchmark]: TraceAbstraction took 659.54 ms. Allocated memory is still 140.0 MB. Free memory was 96.1 MB in the beginning and 66.7 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2019-08-05 09:53:32,844 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 0.28 ms. Allocated memory is still 140.0 MB. Free memory was 110.7 MB in the beginning and 110.5 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 53.31 ms. Allocated memory is still 140.0 MB. Free memory was 109.4 MB in the beginning and 107.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.85 ms. Allocated memory is still 140.0 MB. Free memory was 107.3 MB in the beginning and 106.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 285.30 ms. Allocated memory is still 140.0 MB. Free memory was 106.1 MB in the beginning and 96.3 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 659.54 ms. Allocated memory is still 140.0 MB. Free memory was 96.1 MB in the beginning and 66.7 MB in the end (delta: 29.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 5]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 8]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 32]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 5 error locations. SAFE Result, 0.6s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 8 SDslu, 21 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 1 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...