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/20170319-ConjunctivePathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-04 21:27:53,895 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-04 21:27:53,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-04 21:27:53,909 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-04 21:27:53,909 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-04 21:27:53,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-04 21:27:53,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-04 21:27:53,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-04 21:27:53,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-04 21:27:53,916 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-04 21:27:53,917 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-04 21:27:53,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-04 21:27:53,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-04 21:27:53,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-04 21:27:53,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-04 21:27:53,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-04 21:27:53,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-04 21:27:53,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-04 21:27:53,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-04 21:27:53,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-04 21:27:53,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-04 21:27:53,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-04 21:27:53,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-04 21:27:53,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-04 21:27:53,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-04 21:27:53,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-04 21:27:53,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-04 21:27:53,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-04 21:27:53,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-04 21:27:53,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-04 21:27:53,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-04 21:27:53,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-04 21:27:53,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-04 21:27:53,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-04 21:27:53,948 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-04 21:27:53,950 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-04 21:27:53,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-04 21:27:53,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-04 21:27:53,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-04 21:27:53,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-04 21:27:53,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-04 21:27:54,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-04 21:27:54,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-04 21:27:54,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-04 21:27:54,020 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-04 21:27:54,020 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-04 21:27:54,021 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl [2019-08-04 21:27:54,021 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl' [2019-08-04 21:27:54,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-04 21:27:54,077 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-04 21:27:54,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-04 21:27:54,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-04 21:27:54,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-04 21:27:54,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-04 21:27:54,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-04 21:27:54,115 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-04 21:27:54,115 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-04 21:27:54,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/1) ... [2019-08-04 21:27:54,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-04 21:27:54,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-04 21:27:54,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-04 21:27:54,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-04 21:27:54,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (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 21:27:54,249 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-04 21:27:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-04 21:27:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-04 21:27:55,206 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-04 21:27:55,206 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-04 21:27:55,208 INFO L202 PluginConnector]: Adding new model pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:27:55 BoogieIcfgContainer [2019-08-04 21:27:55,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-04 21:27:55,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-04 21:27:55,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-04 21:27:55,213 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-04 21:27:55,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:27:54" (1/2) ... [2019-08-04 21:27:55,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6083c566 and model type pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 09:27:55, skipping insertion in model container [2019-08-04 21:27:55,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:27:55" (2/2) ... [2019-08-04 21:27:55,218 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl [2019-08-04 21:27:55,227 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-04 21:27:55,235 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-04 21:27:55,264 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-04 21:27:55,289 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-04 21:27:55,290 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-04 21:27:55,290 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-04 21:27:55,290 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-04 21:27:55,290 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-04 21:27:55,291 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-04 21:27:55,291 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-04 21:27:55,291 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-04 21:27:55,291 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-04 21:27:55,306 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-04 21:27:55,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-04 21:27:55,314 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:27:55,315 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-04 21:27:55,318 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:27:55,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:27:55,323 INFO L82 PathProgramCache]: Analyzing trace with hash 998287, now seen corresponding path program 1 times [2019-08-04 21:27:55,363 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:27:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:27:55,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2019-08-04 21:27:55,466 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:27:55,612 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:27:55,630 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:27:55,635 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:27:55,730 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 21:27:55,734 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:27:55,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-04 21:27:55,741 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-04 21:27:55,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-04 21:27:55,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:27:55,764 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-04 21:27:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:27:55,891 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-08-04 21:27:55,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-04 21:27:55,892 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-04 21:27:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:27:55,901 INFO L225 Difference]: With dead ends: 7 [2019-08-04 21:27:55,902 INFO L226 Difference]: Without dead ends: 7 [2019-08-04 21:27:55,904 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 21:27:55,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-04 21:27:55,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-04 21:27:55,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-04 21:27:55,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-04 21:27:55,936 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-04 21:27:55,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:27:55,937 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-04 21:27:55,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-04 21:27:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-04 21:27:55,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-04 21:27:55,937 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:27:55,938 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-04 21:27:55,938 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:27:55,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:27:55,939 INFO L82 PathProgramCache]: Analyzing trace with hash 959315175, now seen corresponding path program 1 times [2019-08-04 21:27:55,940 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:27:56,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:27:56,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-04 21:27:56,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:27:56,105 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:27:56,118 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:27:56,271 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 15 [2019-08-04 21:27:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:27:56,276 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:27:56,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-04 21:27:56,278 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-04 21:27:56,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-04 21:27:56,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:27:56,279 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2019-08-04 21:27:56,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:27:56,324 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-04 21:27:56,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-04 21:27:56,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-08-04 21:27:56,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:27:56,326 INFO L225 Difference]: With dead ends: 4 [2019-08-04 21:27:56,326 INFO L226 Difference]: Without dead ends: 0 [2019-08-04 21:27:56,328 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:27:56,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-04 21:27:56,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-04 21:27:56,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-04 21:27:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-04 21:27:56,329 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-08-04 21:27:56,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:27:56,330 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-04 21:27:56,330 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-04 21:27:56,335 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-04 21:27:56,336 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-04 21:27:56,344 INFO L202 PluginConnector]: Adding new model pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 09:27:56 BoogieIcfgContainer [2019-08-04 21:27:56,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-04 21:27:56,350 INFO L168 Benchmark]: Toolchain (without parser) took 2269.71 ms. Allocated memory was 135.8 MB in the beginning and 170.9 MB in the end (delta: 35.1 MB). Free memory was 108.9 MB in the beginning and 112.9 MB in the end (delta: -4.0 MB). Peak memory consumption was 31.1 MB. Max. memory is 7.1 GB. [2019-08-04 21:27:56,351 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 135.8 MB. Free memory is still 110.6 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-04 21:27:56,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.41 ms. Allocated memory is still 135.8 MB. Free memory was 108.9 MB in the beginning and 107.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-04 21:27:56,353 INFO L168 Benchmark]: Boogie Preprocessor took 48.46 ms. Allocated memory is still 135.8 MB. Free memory was 107.2 MB in the beginning and 105.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-04 21:27:56,355 INFO L168 Benchmark]: RCFGBuilder took 1041.68 ms. Allocated memory is still 135.8 MB. Free memory was 105.9 MB in the beginning and 64.1 MB in the end (delta: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2019-08-04 21:27:56,356 INFO L168 Benchmark]: TraceAbstraction took 1135.53 ms. Allocated memory was 135.8 MB in the beginning and 170.9 MB in the end (delta: 35.1 MB). Free memory was 64.1 MB in the beginning and 112.9 MB in the end (delta: -48.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-04 21:27:56,363 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 0.20 ms. Allocated memory is still 135.8 MB. Free memory is still 110.6 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.41 ms. Allocated memory is still 135.8 MB. Free memory was 108.9 MB in the beginning and 107.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.46 ms. Allocated memory is still 135.8 MB. Free memory was 107.2 MB in the beginning and 105.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1041.68 ms. Allocated memory is still 135.8 MB. Free memory was 105.9 MB in the beginning and 64.1 MB in the end (delta: 41.8 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1135.53 ms. Allocated memory was 135.8 MB in the beginning and 170.9 MB in the end (delta: 35.1 MB). Free memory was 64.1 MB in the beginning and 112.9 MB in the end (delta: -48.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 309]: 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, 6 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 313 SizeOfPredicates, 27 NumberOfNonLiveVariables, 225 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 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...