java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-04 21:38:33,970 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-04 21:38:33,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-04 21:38:33,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-04 21:38:33,983 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-04 21:38:33,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-04 21:38:33,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-04 21:38:33,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-04 21:38:33,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-04 21:38:33,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-04 21:38:33,991 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-04 21:38:33,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-04 21:38:33,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-04 21:38:33,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-04 21:38:33,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-04 21:38:33,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-04 21:38:33,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-04 21:38:33,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-04 21:38:33,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-04 21:38:34,001 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-04 21:38:34,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-04 21:38:34,006 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-04 21:38:34,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-04 21:38:34,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-04 21:38:34,015 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-04 21:38:34,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-04 21:38:34,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-04 21:38:34,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-04 21:38:34,025 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-04 21:38:34,026 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-04 21:38:34,026 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-04 21:38:34,027 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-04 21:38:34,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-04 21:38:34,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-04 21:38:34,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-04 21:38:34,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-04 21:38:34,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-04 21:38:34,084 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-04 21:38:34,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-04 21:38:34,089 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-04 21:38:34,089 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-04 21:38:34,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl [2019-08-04 21:38:34,090 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum01_bug02.i_3.bpl' [2019-08-04 21:38:34,123 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-04 21:38:34,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-04 21:38:34,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-04 21:38:34,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-04 21:38:34,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-04 21:38:34,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,148 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,155 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-04 21:38:34,156 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-04 21:38:34,156 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-04 21:38:34,156 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-04 21:38:34,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/1) ... [2019-08-04 21:38:34,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-04 21:38:34,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-04 21:38:34,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-04 21:38:34,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-04 21:38:34,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (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 [2019-08-04 21:38:34,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-04 21:38:34,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-04 21:38:34,538 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-04 21:38:34,538 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-04 21:38:34,540 INFO L202 PluginConnector]: Adding new model sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:38:34 BoogieIcfgContainer [2019-08-04 21:38:34,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-04 21:38:34,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-04 21:38:34,542 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-04 21:38:34,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-04 21:38:34,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:38:34" (1/2) ... [2019-08-04 21:38:34,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5126c1a5 and model type sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 09:38:34, skipping insertion in model container [2019-08-04 21:38:34,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:38:34" (2/2) ... [2019-08-04 21:38:34,552 INFO L109 eAbstractionObserver]: Analyzing ICFG sum01_bug02.i_3.bpl [2019-08-04 21:38:34,563 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-04 21:38:34,571 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-04 21:38:34,588 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-04 21:38:34,618 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-04 21:38:34,619 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-04 21:38:34,619 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-04 21:38:34,619 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-04 21:38:34,619 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-04 21:38:34,619 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-04 21:38:34,620 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-04 21:38:34,620 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-04 21:38:34,620 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-04 21:38:34,633 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-04 21:38:34,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-04 21:38:34,641 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:34,642 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-04 21:38:34,644 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:34,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:34,653 INFO L82 PathProgramCache]: Analyzing trace with hash 29955, now seen corresponding path program 1 times [2019-08-04 21:38:34,694 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:34,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-04 21:38:34,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:34,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:38:34,797 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-04 21:38:34,801 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-04 21:38:34,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-04 21:38:34,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-04 21:38:34,819 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 3 states. [2019-08-04 21:38:34,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:34,849 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2019-08-04 21:38:34,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-04 21:38:34,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-04 21:38:34,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:34,884 INFO L225 Difference]: With dead ends: 5 [2019-08-04 21:38:34,884 INFO L226 Difference]: Without dead ends: 5 [2019-08-04 21:38:34,890 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 [2019-08-04 21:38:34,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-04 21:38:34,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-04 21:38:34,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-04 21:38:34,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2019-08-04 21:38:34,947 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2019-08-04 21:38:34,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:34,947 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2019-08-04 21:38:34,948 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-04 21:38:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2019-08-04 21:38:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-04 21:38:34,949 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:34,949 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-04 21:38:34,950 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:34,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:34,950 INFO L82 PathProgramCache]: Analyzing trace with hash 930412, now seen corresponding path program 1 times [2019-08-04 21:38:34,951 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:34,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:34,997 WARN L254 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-04 21:38:35,001 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:35,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:35,137 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:38:35,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-04 21:38:35,139 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-04 21:38:35,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-04 21:38:35,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:38:35,140 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 4 states. [2019-08-04 21:38:35,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:35,176 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-08-04 21:38:35,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-04 21:38:35,176 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-04 21:38:35,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:35,177 INFO L225 Difference]: With dead ends: 6 [2019-08-04 21:38:35,177 INFO L226 Difference]: Without dead ends: 6 [2019-08-04 21:38:35,178 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:38:35,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-08-04 21:38:35,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-08-04 21:38:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-04 21:38:35,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-08-04 21:38:35,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-08-04 21:38:35,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:35,182 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-08-04 21:38:35,182 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-04 21:38:35,182 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-08-04 21:38:35,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-04 21:38:35,182 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:35,183 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1] [2019-08-04 21:38:35,183 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:35,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:35,184 INFO L82 PathProgramCache]: Analyzing trace with hash 28844579, now seen corresponding path program 2 times [2019-08-04 21:38:35,185 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:35,214 WARN L254 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 17 conjunts are in the unsatisfiable core [2019-08-04 21:38:35,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:35,353 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:35,353 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:38:35,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-04 21:38:35,354 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-04 21:38:35,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-04 21:38:35,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-04 21:38:35,355 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2019-08-04 21:38:35,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:35,413 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-04 21:38:35,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-04 21:38:35,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-08-04 21:38:35,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:35,415 INFO L225 Difference]: With dead ends: 7 [2019-08-04 21:38:35,415 INFO L226 Difference]: Without dead ends: 7 [2019-08-04 21:38:35,416 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-04 21:38:35,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-04 21:38:35,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-04 21:38:35,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-04 21:38:35,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-04 21:38:35,420 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-08-04 21:38:35,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:35,422 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-04 21:38:35,422 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-04 21:38:35,422 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-04 21:38:35,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-04 21:38:35,423 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:35,423 INFO L399 BasicCegarLoop]: trace histogram [3, 1, 1, 1] [2019-08-04 21:38:35,424 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:35,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:35,424 INFO L82 PathProgramCache]: Analyzing trace with hash 894183756, now seen corresponding path program 3 times [2019-08-04 21:38:35,426 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:35,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:35,497 WARN L254 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 21 conjunts are in the unsatisfiable core [2019-08-04 21:38:35,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:35,756 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:35,756 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:38:35,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-04 21:38:35,757 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-04 21:38:35,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-04 21:38:35,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-08-04 21:38:35,758 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-08-04 21:38:35,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:35,935 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-04 21:38:35,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-04 21:38:35,936 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-08-04 21:38:35,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:35,936 INFO L225 Difference]: With dead ends: 8 [2019-08-04 21:38:35,936 INFO L226 Difference]: Without dead ends: 8 [2019-08-04 21:38:35,937 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-08-04 21:38:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-04 21:38:35,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-08-04 21:38:35,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-08-04 21:38:35,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-08-04 21:38:35,939 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-08-04 21:38:35,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:35,939 INFO L475 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-08-04 21:38:35,939 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-04 21:38:35,939 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-08-04 21:38:35,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-08-04 21:38:35,940 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:35,940 INFO L399 BasicCegarLoop]: trace histogram [4, 1, 1, 1] [2019-08-04 21:38:35,940 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:35,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:35,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1949894467, now seen corresponding path program 4 times [2019-08-04 21:38:35,942 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:35,970 WARN L254 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 25 conjunts are in the unsatisfiable core [2019-08-04 21:38:35,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:36,140 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:38:36,141 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-04 21:38:36,141 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-04 21:38:36,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-04 21:38:36,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-04 21:38:36,142 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 7 states. [2019-08-04 21:38:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:36,208 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2019-08-04 21:38:36,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-04 21:38:36,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-08-04 21:38:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:36,212 INFO L225 Difference]: With dead ends: 9 [2019-08-04 21:38:36,212 INFO L226 Difference]: Without dead ends: 9 [2019-08-04 21:38:36,213 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-04 21:38:36,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-08-04 21:38:36,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-08-04 21:38:36,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-04 21:38:36,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-04 21:38:36,215 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-08-04 21:38:36,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:36,219 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-04 21:38:36,219 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-04 21:38:36,219 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-04 21:38:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-04 21:38:36,220 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:36,220 INFO L399 BasicCegarLoop]: trace histogram [5, 1, 1, 1] [2019-08-04 21:38:36,220 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:36,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:36,221 INFO L82 PathProgramCache]: Analyzing trace with hash 317188140, now seen corresponding path program 5 times [2019-08-04 21:38:36,222 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:36,257 WARN L254 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 29 conjunts are in the unsatisfiable core [2019-08-04 21:38:36,259 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:36,535 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:36,535 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:38:36,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2019-08-04 21:38:36,536 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-04 21:38:36,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-04 21:38:36,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-08-04 21:38:36,537 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 8 states. [2019-08-04 21:38:36,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:36,634 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-04 21:38:36,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-08-04 21:38:36,635 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2019-08-04 21:38:36,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:36,636 INFO L225 Difference]: With dead ends: 10 [2019-08-04 21:38:36,636 INFO L226 Difference]: Without dead ends: 10 [2019-08-04 21:38:36,637 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-08-04 21:38:36,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-04 21:38:36,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-08-04 21:38:36,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-08-04 21:38:36,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-08-04 21:38:36,639 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-08-04 21:38:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:36,639 INFO L475 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-08-04 21:38:36,640 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-08-04 21:38:36,640 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-08-04 21:38:36,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-08-04 21:38:36,640 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:38:36,640 INFO L399 BasicCegarLoop]: trace histogram [6, 1, 1, 1] [2019-08-04 21:38:36,641 INFO L418 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:38:36,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:38:36,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1242899555, now seen corresponding path program 6 times [2019-08-04 21:38:36,642 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:38:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:38:36,668 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-04 21:38:36,669 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:38:37,116 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:38:37,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:38:37,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-08-04 21:38:37,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-08-04 21:38:37,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-08-04 21:38:37,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-08-04 21:38:37,120 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 8 states. [2019-08-04 21:38:37,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:38:37,202 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2019-08-04 21:38:37,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-08-04 21:38:37,203 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-08-04 21:38:37,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:38:37,203 INFO L225 Difference]: With dead ends: 7 [2019-08-04 21:38:37,204 INFO L226 Difference]: Without dead ends: 0 [2019-08-04 21:38:37,205 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2019-08-04 21:38:37,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-04 21:38:37,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-04 21:38:37,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-04 21:38:37,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-04 21:38:37,206 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-08-04 21:38:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:38:37,206 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-04 21:38:37,206 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-08-04 21:38:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-04 21:38:37,207 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-04 21:38:37,211 INFO L202 PluginConnector]: Adding new model sum01_bug02.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 09:38:37 BoogieIcfgContainer [2019-08-04 21:38:37,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-04 21:38:37,214 INFO L168 Benchmark]: Toolchain (without parser) took 3088.15 ms. Allocated memory was 133.7 MB in the beginning and 170.9 MB in the end (delta: 37.2 MB). Free memory was 108.8 MB in the beginning and 91.8 MB in the end (delta: 17.0 MB). Peak memory consumption was 54.2 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:37,215 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 110.0 MB in the beginning and 109.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-04 21:38:37,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.67 ms. Allocated memory is still 133.7 MB. Free memory was 108.6 MB in the beginning and 107.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:37,217 INFO L168 Benchmark]: Boogie Preprocessor took 20.77 ms. Allocated memory is still 133.7 MB. Free memory was 107.1 MB in the beginning and 105.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:37,218 INFO L168 Benchmark]: RCFGBuilder took 362.75 ms. Allocated memory is still 133.7 MB. Free memory was 105.8 MB in the beginning and 96.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:37,219 INFO L168 Benchmark]: TraceAbstraction took 2669.69 ms. Allocated memory was 133.7 MB in the beginning and 170.9 MB in the end (delta: 37.2 MB). Free memory was 95.8 MB in the beginning and 91.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. [2019-08-04 21:38:37,223 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 133.7 MB. Free memory was 110.0 MB in the beginning and 109.8 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 30.67 ms. Allocated memory is still 133.7 MB. Free memory was 108.6 MB in the beginning and 107.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.77 ms. Allocated memory is still 133.7 MB. Free memory was 107.1 MB in the beginning and 105.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 362.75 ms. Allocated memory is still 133.7 MB. Free memory was 105.8 MB in the beginning and 96.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2669.69 ms. Allocated memory was 133.7 MB in the beginning and 170.9 MB in the end (delta: 37.2 MB). Free memory was 95.8 MB in the beginning and 91.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 2.6s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 0 SDslu, 21 SDs, 0 SdLazy, 144 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=6, 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 1230 SizeOfPredicates, 29 NumberOfNonLiveVariables, 294 ConjunctsInSsa, 124 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 21/56 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...