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/recursive/regression/bpl/CTL/encT_TRE.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:07:32,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:07:32,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:07:32,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:07:32,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:07:32,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:07:32,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:07:32,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:07:32,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:07:32,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:07:32,905 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:07:32,906 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:07:32,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:07:32,907 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:07:32,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:07:32,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:07:32,910 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:07:32,911 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:07:32,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:07:32,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:07:32,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:07:32,918 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:07:32,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:07:32,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:07:32,923 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:07:32,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:07:32,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:07:32,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:07:32,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:07:32,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:07:32,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:07:32,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:07:32,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:07:32,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:07:32,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:07:32,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:07:32,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:07:32,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:07:32,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:07:32,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:07:32,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:07:32,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:07:32,985 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:07:32,989 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:07:32,990 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:07:32,991 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:07:32,992 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/CTL/encT_TRE.bpl [2019-08-05 11:07:32,992 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/recursive/regression/bpl/CTL/encT_TRE.bpl' [2019-08-05 11:07:33,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:07:33,035 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:07:33,040 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:07:33,040 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:07:33,040 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:07:33,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,070 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,079 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:07:33,079 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:07:33,080 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:07:33,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:07:33,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:07:33,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:07:33,131 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:07:33,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/1) ... [2019-08-05 11:07:33,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:07:33,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:07:33,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:07:33,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:07:33,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (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 11:07:33,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure encLT given in one single declaration [2019-08-05 11:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure encLT [2019-08-05 11:07:33,262 INFO L138 BoogieDeclarations]: Found implementation of procedure encLT [2019-08-05 11:07:33,262 INFO L124 BoogieDeclarations]: Specification and implementation of procedure encRLT given in one single declaration [2019-08-05 11:07:33,262 INFO L130 BoogieDeclarations]: Found specification of procedure encRLT [2019-08-05 11:07:33,263 INFO L138 BoogieDeclarations]: Found implementation of procedure encRLT [2019-08-05 11:07:33,263 INFO L124 BoogieDeclarations]: Specification and implementation of procedure encT given in one single declaration [2019-08-05 11:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure encT [2019-08-05 11:07:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure encT [2019-08-05 11:07:33,265 INFO L124 BoogieDeclarations]: Specification and implementation of procedure Test given in one single declaration [2019-08-05 11:07:33,265 INFO L130 BoogieDeclarations]: Found specification of procedure Test [2019-08-05 11:07:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure Test [2019-08-05 11:07:33,266 INFO L124 BoogieDeclarations]: Specification and implementation of procedure encLLT given in one single declaration [2019-08-05 11:07:33,266 INFO L130 BoogieDeclarations]: Found specification of procedure encLLT [2019-08-05 11:07:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure encLLT [2019-08-05 11:07:36,394 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:07:36,394 INFO L283 CfgBuilder]: Removed 80 assume(true) statements. [2019-08-05 11:07:36,396 INFO L202 PluginConnector]: Adding new model encT_TRE.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:07:36 BoogieIcfgContainer [2019-08-05 11:07:36,396 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:07:36,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:07:36,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:07:36,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:07:36,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:33" (1/2) ... [2019-08-05 11:07:36,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606e43fc and model type encT_TRE.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:07:36, skipping insertion in model container [2019-08-05 11:07:36,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "encT_TRE.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:07:36" (2/2) ... [2019-08-05 11:07:36,405 INFO L109 eAbstractionObserver]: Analyzing ICFG encT_TRE.bpl [2019-08-05 11:07:36,417 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:07:36,426 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:07:36,444 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:07:36,473 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:07:36,473 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:07:36,474 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:07:36,474 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:07:36,474 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:07:36,475 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:07:36,475 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:07:36,475 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:07:36,475 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:07:36,496 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2019-08-05 11:07:36,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 11:07:36,517 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:07:36,518 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-08-05 11:07:36,520 INFO L418 AbstractCegarLoop]: === Iteration 1 === [TestErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:07:36,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:07:36,530 INFO L82 PathProgramCache]: Analyzing trace with hash 246616900, now seen corresponding path program 1 times [2019-08-05 11:07:36,594 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:07:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:07:36,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 1 conjunts are in the unsatisfiable core [2019-08-05 11:07:36,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:07:36,660 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 11:07:36,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:07:36,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:07:36,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-08-05 11:07:36,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-08-05 11:07:36,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:07:36,692 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 2 states. [2019-08-05 11:07:36,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:07:36,713 INFO L93 Difference]: Finished difference Result 44 states and 67 transitions. [2019-08-05 11:07:36,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-08-05 11:07:36,715 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-08-05 11:07:36,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:07:36,728 INFO L225 Difference]: With dead ends: 44 [2019-08-05 11:07:36,728 INFO L226 Difference]: Without dead ends: 19 [2019-08-05 11:07:36,730 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:07:36,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-08-05 11:07:36,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-08-05 11:07:36,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-08-05 11:07:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 32 transitions. [2019-08-05 11:07:36,768 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 32 transitions. Word has length 5 [2019-08-05 11:07:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:07:36,768 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 32 transitions. [2019-08-05 11:07:36,769 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-08-05 11:07:36,769 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 32 transitions. [2019-08-05 11:07:36,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 11:07:36,770 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:07:36,770 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-08-05 11:07:36,770 INFO L418 AbstractCegarLoop]: === Iteration 2 === [TestErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:07:36,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:07:36,771 INFO L82 PathProgramCache]: Analyzing trace with hash 251005787, now seen corresponding path program 1 times [2019-08-05 11:07:36,772 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:07:36,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:07:36,802 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 8 conjunts are in the unsatisfiable core [2019-08-05 11:07:36,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:07:36,867 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:07:36,930 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 11:07:36,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:07:36,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:07:36,933 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:07:36,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:07:36,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:07:36,934 INFO L87 Difference]: Start difference. First operand 19 states and 32 transitions. Second operand 4 states. [2019-08-05 11:07:37,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:07:37,298 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2019-08-05 11:07:37,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:07:37,299 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-08-05 11:07:37,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:07:37,301 INFO L225 Difference]: With dead ends: 29 [2019-08-05 11:07:37,301 INFO L226 Difference]: Without dead ends: 29 [2019-08-05 11:07:37,303 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 11:07:37,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-08-05 11:07:37,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2019-08-05 11:07:37,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-08-05 11:07:37,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 26 transitions. [2019-08-05 11:07:37,307 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 26 transitions. Word has length 5 [2019-08-05 11:07:37,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:07:37,307 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 26 transitions. [2019-08-05 11:07:37,307 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:07:37,308 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2019-08-05 11:07:37,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 11:07:37,308 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:07:37,308 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-08-05 11:07:37,308 INFO L418 AbstractCegarLoop]: === Iteration 3 === [TestErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:07:37,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:07:37,309 INFO L82 PathProgramCache]: Analyzing trace with hash -808861467, now seen corresponding path program 1 times [2019-08-05 11:07:37,310 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:07:37,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:07:37,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 11:07:37,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:07:37,377 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 11:07:37,377 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:07:37,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:07:37,378 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:07:37,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:07:37,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:07:37,379 INFO L87 Difference]: Start difference. First operand 19 states and 26 transitions. Second operand 4 states. [2019-08-05 11:07:37,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:07:37,410 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2019-08-05 11:07:37,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:07:37,414 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-05 11:07:37,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:07:37,414 INFO L225 Difference]: With dead ends: 18 [2019-08-05 11:07:37,415 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:07:37,415 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 11:07:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:07:37,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:07:37,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:07:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:07:37,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-05 11:07:37,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:07:37,417 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:07:37,417 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:07:37,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:07:37,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:07:37,422 INFO L202 PluginConnector]: Adding new model encT_TRE.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:07:37 BoogieIcfgContainer [2019-08-05 11:07:37,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:07:37,425 INFO L168 Benchmark]: Toolchain (without parser) took 4388.29 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 111.4 MB in the beginning and 164.1 MB in the end (delta: -52.6 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:37,426 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory was 112.9 MB in the beginning and 112.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 11:07:37,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.01 ms. Allocated memory is still 134.2 MB. Free memory was 111.4 MB in the beginning and 108.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:37,428 INFO L168 Benchmark]: Boogie Preprocessor took 42.61 ms. Allocated memory is still 134.2 MB. Free memory was 108.4 MB in the beginning and 106.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:37,429 INFO L168 Benchmark]: RCFGBuilder took 3222.51 ms. Allocated memory was 134.2 MB in the beginning and 170.4 MB in the end (delta: 36.2 MB). Free memory was 106.3 MB in the beginning and 82.0 MB in the end (delta: 24.3 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:37,430 INFO L168 Benchmark]: TraceAbstraction took 1023.89 ms. Allocated memory was 170.4 MB in the beginning and 197.1 MB in the end (delta: 26.7 MB). Free memory was 82.0 MB in the beginning and 164.1 MB in the end (delta: -82.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:07:37,434 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 0.24 ms. Allocated memory is still 134.2 MB. Free memory was 112.9 MB in the beginning and 112.7 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 91.01 ms. Allocated memory is still 134.2 MB. Free memory was 111.4 MB in the beginning and 108.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.61 ms. Allocated memory is still 134.2 MB. Free memory was 108.4 MB in the beginning and 106.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3222.51 ms. Allocated memory was 134.2 MB in the beginning and 170.4 MB in the end (delta: 36.2 MB). Free memory was 106.3 MB in the beginning and 82.0 MB in the end (delta: 24.3 MB). Peak memory consumption was 60.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1023.89 ms. Allocated memory was 170.4 MB in the beginning and 197.1 MB in the end (delta: 26.7 MB). Free memory was 82.0 MB in the beginning and 164.1 MB in the end (delta: -82.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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 5 procedures, 44 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 109 SDtfs, 45 SDslu, 50 SDs, 0 SdLazy, 20 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 12 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...