java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:22:35,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:22:35,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:22:35,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:22:35,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:22:35,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:22:35,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:22:35,812 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:22:35,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:22:35,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:22:35,817 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:22:35,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:22:35,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:22:35,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:22:35,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:22:35,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:22:35,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:22:35,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:22:35,838 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:22:35,840 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:22:35,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:22:35,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:22:35,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:22:35,848 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:22:35,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:22:35,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:22:35,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:22:35,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:22:35,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:22:35,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:22:35,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:22:35,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:22:35,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:22:35,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:22:35,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:22:35,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:22:35,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:22:35,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:22:35,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:22:35,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:22:35,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:22:35,901 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:22:35,913 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:22:35,915 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:22:35,916 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:22:35,917 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:22:35,917 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl [2019-08-05 10:22:35,917 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl' [2019-08-05 10:22:35,974 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:22:35,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:22:35,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:22:35,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:22:35,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:22:35,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:22:36,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:22:36,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:22:36,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:22:36,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,053 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/1) ... [2019-08-05 10:22:36,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:22:36,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:22:36,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:22:36,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:22:36,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (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 10:22:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 10:22:36,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 10:22:37,171 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 10:22:37,172 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 10:22:37,173 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:22:37 BoogieIcfgContainer [2019-08-05 10:22:37,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:22:37,174 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:22:37,175 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:22:37,188 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:22:37,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:22:35" (1/2) ... [2019-08-05 10:22:37,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b082863 and model type pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:22:37, skipping insertion in model container [2019-08-05 10:22:37,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:22:37" (2/2) ... [2019-08-05 10:22:37,192 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl [2019-08-05 10:22:37,201 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:22:37,209 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:22:37,225 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:22:37,251 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:22:37,252 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:22:37,252 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:22:37,252 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:22:37,252 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:22:37,253 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:22:37,253 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:22:37,253 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:22:37,253 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:22:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 10:22:37,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 10:22:37,276 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:22:37,277 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 10:22:37,279 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:22:37,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:22:37,285 INFO L82 PathProgramCache]: Analyzing trace with hash 990345, now seen corresponding path program 1 times [2019-08-05 10:22:37,342 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:22:37,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:22:37,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 13 conjunts are in the unsatisfiable core [2019-08-05 10:22:37,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:22:37,650 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:37,743 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 10:22:37,745 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:22:37,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 10:22:37,749 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:22:37,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:22:37,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:22:37,762 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-05 10:22:37,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:22:37,839 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-05 10:22:37,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:22:37,841 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-05 10:22:37,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:22:37,850 INFO L225 Difference]: With dead ends: 8 [2019-08-05 10:22:37,851 INFO L226 Difference]: Without dead ends: 8 [2019-08-05 10:22:37,852 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 [2019-08-05 10:22:37,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-05 10:22:37,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-05 10:22:37,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 10:22:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-05 10:22:37,885 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-05 10:22:37,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:22:37,885 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-05 10:22:37,886 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:22:37,886 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-05 10:22:37,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 10:22:37,886 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:22:37,887 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-05 10:22:37,887 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:22:37,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:22:37,887 INFO L82 PathProgramCache]: Analyzing trace with hash 951799901, now seen corresponding path program 1 times [2019-08-05 10:22:37,890 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:22:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:22:37,991 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 15 conjunts are in the unsatisfiable core [2019-08-05 10:22:37,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:22:38,030 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:38,217 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:38,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:22:38,249 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:22:38,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-05 10:22:38,252 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 10:22:38,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 10:22:38,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-05 10:22:38,253 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-08-05 10:22:38,456 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-08-05 10:22:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:22:38,536 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-05 10:22:38,536 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 10:22:38,536 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-08-05 10:22:38,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:22:38,537 INFO L225 Difference]: With dead ends: 10 [2019-08-05 10:22:38,537 INFO L226 Difference]: Without dead ends: 10 [2019-08-05 10:22:38,538 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-08-05 10:22:38,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-05 10:22:38,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-08-05 10:22:38,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-05 10:22:38,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-05 10:22:38,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-08-05 10:22:38,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:22:38,541 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-05 10:22:38,541 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 10:22:38,541 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-05 10:22:38,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-05 10:22:38,541 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:22:38,542 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-08-05 10:22:38,542 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:22:38,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:22:38,542 INFO L82 PathProgramCache]: Analyzing trace with hash -148250831, now seen corresponding path program 2 times [2019-08-05 10:22:38,545 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:22:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:22:38,642 INFO L256 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 24 conjunts are in the unsatisfiable core [2019-08-05 10:22:38,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:22:38,689 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:38,897 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2019-08-05 10:22:38,902 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:38,903 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:39,758 WARN L188 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-08-05 10:22:39,761 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:39,809 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:39,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:22:39,888 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:22:39,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 10:22:39,888 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 10:22:39,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 10:22:39,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:22:39,889 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 7 states. [2019-08-05 10:22:40,093 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2019-08-05 10:22:40,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:22:40,183 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-08-05 10:22:40,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:22:40,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2019-08-05 10:22:40,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:22:40,184 INFO L225 Difference]: With dead ends: 11 [2019-08-05 10:22:40,184 INFO L226 Difference]: Without dead ends: 11 [2019-08-05 10:22:40,185 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2019-08-05 10:22:40,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-08-05 10:22:40,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-08-05 10:22:40,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-05 10:22:40,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-05 10:22:40,189 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-08-05 10:22:40,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:22:40,189 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-05 10:22:40,189 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 10:22:40,189 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-05 10:22:40,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-05 10:22:40,190 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:22:40,190 INFO L399 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2019-08-05 10:22:40,191 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:22:40,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:22:40,191 INFO L82 PathProgramCache]: Analyzing trace with hash -735049467, now seen corresponding path program 3 times [2019-08-05 10:22:40,193 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:22:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:22:40,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 16 conjunts are in the unsatisfiable core [2019-08-05 10:22:40,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:22:40,406 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:40,539 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:40,589 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:22:40,589 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:22:40,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-05 10:22:40,590 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-05 10:22:40,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-05 10:22:40,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-05 10:22:40,590 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2019-08-05 10:22:40,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:22:40,737 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2019-08-05 10:22:40,738 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-05 10:22:40,738 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-08-05 10:22:40,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:22:40,739 INFO L225 Difference]: With dead ends: 16 [2019-08-05 10:22:40,739 INFO L226 Difference]: Without dead ends: 16 [2019-08-05 10:22:40,739 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-08-05 10:22:40,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-08-05 10:22:40,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2019-08-05 10:22:40,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-08-05 10:22:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-08-05 10:22:40,743 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2019-08-05 10:22:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:22:40,743 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-08-05 10:22:40,743 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-05 10:22:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-08-05 10:22:40,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-08-05 10:22:40,744 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:22:40,744 INFO L399 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2019-08-05 10:22:40,744 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:22:40,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:22:40,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1077400147, now seen corresponding path program 4 times [2019-08-05 10:22:40,747 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:22:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:22:40,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 18 conjunts are in the unsatisfiable core [2019-08-05 10:22:40,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:22:41,006 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:41,288 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:41,446 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:22:41,447 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:22:41,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-08-05 10:22:41,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-08-05 10:22:41,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-08-05 10:22:41,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-08-05 10:22:41,448 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 9 states. [2019-08-05 10:22:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:22:53,945 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2019-08-05 10:22:53,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-08-05 10:22:53,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2019-08-05 10:22:53,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:22:53,948 INFO L225 Difference]: With dead ends: 20 [2019-08-05 10:22:53,948 INFO L226 Difference]: Without dead ends: 20 [2019-08-05 10:22:53,949 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-08-05 10:22:53,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-08-05 10:22:53,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2019-08-05 10:22:53,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-08-05 10:22:53,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2019-08-05 10:22:53,952 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 14 [2019-08-05 10:22:53,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:22:53,952 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2019-08-05 10:22:53,952 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-08-05 10:22:53,952 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2019-08-05 10:22:53,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-08-05 10:22:53,953 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:22:53,953 INFO L399 BasicCegarLoop]: trace histogram [8, 7, 1, 1, 1] [2019-08-05 10:22:53,953 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:22:53,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:22:53,954 INFO L82 PathProgramCache]: Analyzing trace with hash 602783317, now seen corresponding path program 5 times [2019-08-05 10:22:53,955 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:22:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:22:54,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 10 conjunts are in the unsatisfiable core [2019-08-05 10:22:54,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:22:54,401 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-08-05 10:22:54,403 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:54,423 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 10:22:54,497 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-08-05 10:22:54,497 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-05 10:22:54,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-05 10:22:54,497 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 10:22:54,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 10:22:54,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:22:54,498 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 4 states. [2019-08-05 10:22:54,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:22:54,511 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-05 10:22:54,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 10:22:54,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2019-08-05 10:22:54,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:22:54,512 INFO L225 Difference]: With dead ends: 4 [2019-08-05 10:22:54,512 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 10:22:54,513 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-05 10:22:54,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 10:22:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 10:22:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 10:22:54,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 10:22:54,513 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-08-05 10:22:54,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:22:54,513 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 10:22:54,514 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 10:22:54,514 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 10:22:54,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 10:22:54,518 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.4.ufo.UNBOUNDED.pals.c_10.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:22:54 BoogieIcfgContainer [2019-08-05 10:22:54,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:22:54,520 INFO L168 Benchmark]: Toolchain (without parser) took 18545.04 ms. Allocated memory was 140.5 MB in the beginning and 240.1 MB in the end (delta: 99.6 MB). Free memory was 107.9 MB in the beginning and 173.4 MB in the end (delta: -65.5 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:22:54,521 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 140.5 MB. Free memory was 110.0 MB in the beginning and 109.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-08-05 10:22:54,522 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.03 ms. Allocated memory is still 140.5 MB. Free memory was 107.7 MB in the beginning and 106.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 10:22:54,523 INFO L168 Benchmark]: Boogie Preprocessor took 35.28 ms. Allocated memory is still 140.5 MB. Free memory was 106.0 MB in the beginning and 104.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-08-05 10:22:54,524 INFO L168 Benchmark]: RCFGBuilder took 1114.21 ms. Allocated memory is still 140.5 MB. Free memory was 104.5 MB in the beginning and 61.7 MB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:22:54,525 INFO L168 Benchmark]: TraceAbstraction took 17344.12 ms. Allocated memory was 140.5 MB in the beginning and 240.1 MB in the end (delta: 99.6 MB). Free memory was 61.5 MB in the beginning and 173.4 MB in the end (delta: -111.9 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 10:22:54,529 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 140.5 MB. Free memory was 110.0 MB in the beginning and 109.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.03 ms. Allocated memory is still 140.5 MB. Free memory was 107.7 MB in the beginning and 106.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.28 ms. Allocated memory is still 140.5 MB. Free memory was 106.0 MB in the beginning and 104.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1114.21 ms. Allocated memory is still 140.5 MB. Free memory was 104.5 MB in the beginning and 61.7 MB in the end (delta: 42.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17344.12 ms. Allocated memory was 140.5 MB in the beginning and 240.1 MB in the end (delta: 99.6 MB). Free memory was 61.5 MB in the beginning and 173.4 MB in the end (delta: -111.9 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 386]: 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, 17.2s OverallTime, 6 OverallIterations, 8 TraceHistogramMax, 13.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 20 SDslu, 41 SDs, 0 SdLazy, 160 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=5, 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 16 QuantifiedInterpolants, 10246 SizeOfPredicates, 121 NumberOfNonLiveVariables, 1308 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 56/106 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...