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/random/RanFile056.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:04:55,541 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:04:55,543 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:04:55,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:04:55,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:04:55,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:04:55,557 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:04:55,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:04:55,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:04:55,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:04:55,563 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:04:55,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:04:55,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:04:55,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:04:55,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:04:55,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:04:55,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:04:55,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:04:55,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:04:55,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:04:55,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:04:55,575 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:04:55,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:04:55,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:04:55,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:04:55,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:04:55,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:04:55,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:04:55,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:04:55,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:04:55,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:04:55,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:04:55,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:04:55,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:04:55,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:04:55,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:04:55,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:04:55,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:04:55,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:04:55,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:04:55,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:04:55,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:04:55,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:04:55,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:04:55,634 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:04:55,635 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:04:55,635 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/random/RanFile056.bpl [2019-08-05 10:04:55,635 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/random/RanFile056.bpl' [2019-08-05 10:04:55,677 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:04:55,680 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:04:55,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:04:55,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:04:55,681 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:04:55,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,715 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:04:55,715 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:04:55,715 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:04:55,717 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:04:55,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:04:55,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:04:55,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:04:55,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/1) ... [2019-08-05 10:04:55,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:04:55,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:04:55,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:04:55,768 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:04:55,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (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 10:04:55,839 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 10:04:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 10:04:55,840 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 10:04:56,954 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:04:56,954 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:04:56,955 INFO L202 PluginConnector]: Adding new model RanFile056.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:04:56 BoogieIcfgContainer [2019-08-05 10:04:56,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:04:56,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:04:56,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:04:56,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:04:56,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:04:55" (1/2) ... [2019-08-05 10:04:56,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@675344a0 and model type RanFile056.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:04:56, skipping insertion in model container [2019-08-05 10:04:56,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "RanFile056.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:04:56" (2/2) ... [2019-08-05 10:04:56,964 INFO L109 eAbstractionObserver]: Analyzing ICFG RanFile056.bpl [2019-08-05 10:04:56,974 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:04:56,982 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-08-05 10:04:56,996 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-08-05 10:04:57,020 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:04:57,021 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:04:57,021 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:04:57,021 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:04:57,021 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:04:57,022 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:04:57,022 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:04:57,022 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:04:57,022 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:04:57,037 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2019-08-05 10:04:57,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-08-05 10:04:57,046 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:04:57,047 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:04:57,049 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:04:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:04:57,055 INFO L82 PathProgramCache]: Analyzing trace with hash 431911473, now seen corresponding path program 1 times [2019-08-05 10:04:57,096 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:04:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:04:57,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 10:04:57,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:04:57,266 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 10:04:57,269 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:04:57,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-08-05 10:04:57,273 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:04:57,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:04:57,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:04:57,289 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 4 states. [2019-08-05 10:04:57,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:04:57,753 INFO L93 Difference]: Finished difference Result 37 states and 62 transitions. [2019-08-05 10:04:57,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:04:57,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-08-05 10:04:57,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:04:57,767 INFO L225 Difference]: With dead ends: 37 [2019-08-05 10:04:57,767 INFO L226 Difference]: Without dead ends: 35 [2019-08-05 10:04:57,769 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:04:57,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2019-08-05 10:04:57,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2019-08-05 10:04:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-08-05 10:04:57,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 57 transitions. [2019-08-05 10:04:57,806 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 57 transitions. Word has length 15 [2019-08-05 10:04:57,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:04:57,807 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 57 transitions. [2019-08-05 10:04:57,807 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:04:57,807 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2019-08-05 10:04:57,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-08-05 10:04:57,808 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:04:57,808 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:04:57,809 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:04:57,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:04:57,810 INFO L82 PathProgramCache]: Analyzing trace with hash -2088653871, now seen corresponding path program 1 times [2019-08-05 10:04:57,811 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:04:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:04:57,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2019-08-05 10:04:57,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:04:58,340 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:04:58,341 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:04:58,343 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:04:58,349 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:04:58,351 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:04:58,779 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 36 [2019-08-05 10:04:58,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:04:58,788 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:04:58,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-08-05 10:04:58,789 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-08-05 10:04:58,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-08-05 10:04:58,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-08-05 10:04:58,790 INFO L87 Difference]: Start difference. First operand 34 states and 57 transitions. Second operand 9 states. [2019-08-05 10:04:59,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:04:59,990 INFO L93 Difference]: Finished difference Result 74 states and 118 transitions. [2019-08-05 10:04:59,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-08-05 10:04:59,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-08-05 10:04:59,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:04:59,995 INFO L225 Difference]: With dead ends: 74 [2019-08-05 10:04:59,995 INFO L226 Difference]: Without dead ends: 74 [2019-08-05 10:04:59,996 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-08-05 10:04:59,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2019-08-05 10:05:00,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 49. [2019-08-05 10:05:00,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-08-05 10:05:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 84 transitions. [2019-08-05 10:05:00,008 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 84 transitions. Word has length 17 [2019-08-05 10:05:00,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:05:00,008 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 84 transitions. [2019-08-05 10:05:00,008 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-08-05 10:05:00,008 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 84 transitions. [2019-08-05 10:05:00,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-08-05 10:05:00,009 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:05:00,010 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:05:00,010 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:05:00,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:05:00,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1226614233, now seen corresponding path program 1 times [2019-08-05 10:05:00,011 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:05:00,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:05:00,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:05:00,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:05:00,075 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 10:05:00,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:05:00,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:05:00,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:05:00,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:05:00,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:05:00,077 INFO L87 Difference]: Start difference. First operand 49 states and 84 transitions. Second operand 3 states. [2019-08-05 10:05:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:05:00,177 INFO L93 Difference]: Finished difference Result 52 states and 86 transitions. [2019-08-05 10:05:00,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:05:00,178 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-08-05 10:05:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:05:00,179 INFO L225 Difference]: With dead ends: 52 [2019-08-05 10:05:00,179 INFO L226 Difference]: Without dead ends: 40 [2019-08-05 10:05:00,180 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 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 10:05:00,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-08-05 10:05:00,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-08-05 10:05:00,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-08-05 10:05:00,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 62 transitions. [2019-08-05 10:05:00,185 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 62 transitions. Word has length 17 [2019-08-05 10:05:00,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:05:00,185 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 62 transitions. [2019-08-05 10:05:00,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:05:00,185 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 62 transitions. [2019-08-05 10:05:00,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-08-05 10:05:00,186 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:05:00,187 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 10:05:00,187 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:05:00,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:05:00,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1075013681, now seen corresponding path program 1 times [2019-08-05 10:05:00,188 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:05:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:05:00,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 10:05:00,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:05:00,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-08-05 10:05:00,266 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:05:00,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-08-05 10:05:00,267 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:05:00,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:05:00,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:05:00,268 INFO L87 Difference]: Start difference. First operand 40 states and 62 transitions. Second operand 4 states. [2019-08-05 10:05:00,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:05:00,400 INFO L93 Difference]: Finished difference Result 39 states and 64 transitions. [2019-08-05 10:05:00,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:05:00,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-08-05 10:05:00,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:05:00,401 INFO L225 Difference]: With dead ends: 39 [2019-08-05 10:05:00,402 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:05:00,402 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:05:00,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:05:00,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:05:00,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:05:00,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:05:00,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-08-05 10:05:00,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:05:00,404 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:05:00,404 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:05:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:05:00,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:05:00,409 INFO L202 PluginConnector]: Adding new model RanFile056.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:05:00 BoogieIcfgContainer [2019-08-05 10:05:00,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:05:00,412 INFO L168 Benchmark]: Toolchain (without parser) took 4732.29 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 110.8 MB in the beginning and 129.6 MB in the end (delta: -18.8 MB). Peak memory consumption was 44.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:05:00,413 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 141.6 MB. Free memory is still 112.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:05:00,414 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.28 ms. Allocated memory is still 141.6 MB. Free memory was 110.4 MB in the beginning and 108.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 10:05:00,415 INFO L168 Benchmark]: Boogie Preprocessor took 49.21 ms. Allocated memory is still 141.6 MB. Free memory was 108.6 MB in the beginning and 107.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:05:00,416 INFO L168 Benchmark]: RCFGBuilder took 1188.07 ms. Allocated memory is still 141.6 MB. Free memory was 107.0 MB in the beginning and 74.3 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. [2019-08-05 10:05:00,417 INFO L168 Benchmark]: TraceAbstraction took 3452.17 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 74.3 MB in the beginning and 129.6 MB in the end (delta: -55.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. [2019-08-05 10:05:00,422 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 0.16 ms. Allocated memory is still 141.6 MB. Free memory is still 112.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.28 ms. Allocated memory is still 141.6 MB. Free memory was 110.4 MB in the beginning and 108.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 49.21 ms. Allocated memory is still 141.6 MB. Free memory was 108.6 MB in the beginning and 107.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1188.07 ms. Allocated memory is still 141.6 MB. Free memory was 107.0 MB in the beginning and 74.3 MB in the end (delta: 32.7 MB). Peak memory consumption was 32.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3452.17 ms. Allocated memory was 141.6 MB in the beginning and 204.5 MB in the end (delta: 62.9 MB). Free memory was 74.3 MB in the beginning and 129.6 MB in the end (delta: -55.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 126]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 128]: 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, 32 locations, 3 error locations. SAFE Result, 3.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 148 SDtfs, 76 SDslu, 55 SDs, 0 SdLazy, 669 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=2, 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, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 63 ConstructedInterpolants, 5 QuantifiedInterpolants, 4133 SizeOfPredicates, 8 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...