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.3.ufo.BOUNDED-6.pals.c_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-04 21:36:57,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-04 21:36:57,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-04 21:36:57,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-04 21:36:57,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-04 21:36:57,152 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-04 21:36:57,153 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-04 21:36:57,155 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-04 21:36:57,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-04 21:36:57,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-04 21:36:57,159 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-04 21:36:57,159 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-04 21:36:57,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-04 21:36:57,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-04 21:36:57,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-04 21:36:57,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-04 21:36:57,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-04 21:36:57,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-04 21:36:57,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-04 21:36:57,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-04 21:36:57,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-04 21:36:57,171 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-04 21:36:57,172 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-04 21:36:57,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-04 21:36:57,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-04 21:36:57,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-04 21:36:57,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-04 21:36:57,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-04 21:36:57,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-04 21:36:57,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-04 21:36:57,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-04 21:36:57,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-04 21:36:57,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-04 21:36:57,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-04 21:36:57,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-04 21:36:57,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-04 21:36:57,185 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-04 21:36:57,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-04 21:36:57,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-04 21:36:57,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-04 21:36:57,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-04 21:36:57,215 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-04 21:36:57,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-04 21:36:57,234 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-04 21:36:57,236 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-04 21:36:57,237 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-04 21:36:57,238 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl [2019-08-04 21:36:57,238 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl' [2019-08-04 21:36:57,311 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-04 21:36:57,313 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-04 21:36:57,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-04 21:36:57,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-04 21:36:57,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-04 21:36:57,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-04 21:36:57,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-04 21:36:57,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-04 21:36:57,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-04 21:36:57,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/1) ... [2019-08-04 21:36:57,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-04 21:36:57,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-04 21:36:57,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-04 21:36:57,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-04 21:36:57,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (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 21:36:57,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-04 21:36:57,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-04 21:36:58,363 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-04 21:36:58,364 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-04 21:36:58,365 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:36:58 BoogieIcfgContainer [2019-08-04 21:36:58,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-04 21:36:58,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-04 21:36:58,367 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-04 21:36:58,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-04 21:36:58,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.08 09:36:57" (1/2) ... [2019-08-04 21:36:58,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2721b9ba and model type pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.08 09:36:58, skipping insertion in model container [2019-08-04 21:36:58,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.08 09:36:58" (2/2) ... [2019-08-04 21:36:58,374 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl [2019-08-04 21:36:58,384 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-04 21:36:58,395 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-04 21:36:58,412 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-04 21:36:58,438 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-04 21:36:58,439 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-04 21:36:58,439 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-04 21:36:58,439 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-04 21:36:58,440 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-04 21:36:58,440 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-04 21:36:58,440 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-04 21:36:58,440 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-04 21:36:58,440 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-04 21:36:58,455 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-04 21:36:58,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-04 21:36:58,464 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:36:58,466 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-04 21:36:58,469 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:36:58,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:36:58,478 INFO L82 PathProgramCache]: Analyzing trace with hash 979518, now seen corresponding path program 1 times [2019-08-04 21:36:58,537 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:36:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:36:58,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 12 conjunts are in the unsatisfiable core [2019-08-04 21:36:58,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:36:58,785 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:36:58,855 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 21:36:58,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-04 21:36:58,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-04 21:36:58,863 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-04 21:36:58,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-04 21:36:58,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:36:58,880 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2019-08-04 21:36:59,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:36:59,000 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-08-04 21:36:59,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-04 21:36:59,002 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-08-04 21:36:59,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:36:59,012 INFO L225 Difference]: With dead ends: 8 [2019-08-04 21:36:59,013 INFO L226 Difference]: Without dead ends: 8 [2019-08-04 21:36:59,015 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 21:36:59,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-08-04 21:36:59,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-08-04 21:36:59,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-04 21:36:59,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-08-04 21:36:59,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-08-04 21:36:59,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:36:59,045 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-08-04 21:36:59,045 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-04 21:36:59,046 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-08-04 21:36:59,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-04 21:36:59,046 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:36:59,046 INFO L399 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-08-04 21:36:59,047 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:36:59,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:36:59,047 INFO L82 PathProgramCache]: Analyzing trace with hash 941392015, now seen corresponding path program 1 times [2019-08-04 21:36:59,050 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:36:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:36:59,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 14 conjunts are in the unsatisfiable core [2019-08-04 21:36:59,192 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:36:59,276 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:36:59,405 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:36:59,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:36:59,445 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:36:59,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-08-04 21:36:59,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-04 21:36:59,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-04 21:36:59,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-08-04 21:36:59,449 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 5 states. [2019-08-04 21:36:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:36:59,570 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-08-04 21:36:59,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-04 21:36:59,571 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2019-08-04 21:36:59,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:36:59,572 INFO L225 Difference]: With dead ends: 10 [2019-08-04 21:36:59,572 INFO L226 Difference]: Without dead ends: 10 [2019-08-04 21:36:59,574 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-08-04 21:36:59,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-08-04 21:36:59,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-08-04 21:36:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-08-04 21:36:59,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-08-04 21:36:59,577 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-08-04 21:36:59,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:36:59,577 INFO L475 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-08-04 21:36:59,578 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-04 21:36:59,578 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-08-04 21:36:59,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-08-04 21:36:59,578 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:36:59,578 INFO L399 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-08-04 21:36:59,579 INFO L418 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:36:59,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:36:59,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1560297824, now seen corresponding path program 2 times [2019-08-04 21:36:59,581 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:36:59,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:36:59,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 15 conjunts are in the unsatisfiable core [2019-08-04 21:36:59,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:36:59,712 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:36:59,861 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:36:59,949 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:36:59,950 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:36:59,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-08-04 21:36:59,951 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-08-04 21:36:59,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-08-04 21:36:59,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-08-04 21:36:59,952 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 6 states. [2019-08-04 21:37:00,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:37:00,278 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-08-04 21:37:00,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-08-04 21:37:00,282 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-08-04 21:37:00,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:37:00,283 INFO L225 Difference]: With dead ends: 12 [2019-08-04 21:37:00,283 INFO L226 Difference]: Without dead ends: 12 [2019-08-04 21:37:00,284 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-08-04 21:37:00,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-08-04 21:37:00,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-08-04 21:37:00,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-08-04 21:37:00,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-08-04 21:37:00,287 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-08-04 21:37:00,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:37:00,287 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-08-04 21:37:00,287 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-08-04 21:37:00,287 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-08-04 21:37:00,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-08-04 21:37:00,288 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:37:00,288 INFO L399 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1] [2019-08-04 21:37:00,288 INFO L418 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:37:00,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:37:00,289 INFO L82 PathProgramCache]: Analyzing trace with hash -502547343, now seen corresponding path program 3 times [2019-08-04 21:37:00,290 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:37:00,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:37:00,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 16 conjunts are in the unsatisfiable core [2019-08-04 21:37:00,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:37:00,462 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:00,687 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:37:00,708 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:37:00,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2019-08-04 21:37:00,709 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-08-04 21:37:00,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-08-04 21:37:00,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-08-04 21:37:00,710 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 7 states. [2019-08-04 21:37:01,025 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-08-04 21:37:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:37:01,124 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2019-08-04 21:37:01,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-04 21:37:01,125 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-08-04 21:37:01,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:37:01,126 INFO L225 Difference]: With dead ends: 14 [2019-08-04 21:37:01,127 INFO L226 Difference]: Without dead ends: 14 [2019-08-04 21:37:01,128 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-08-04 21:37:01,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-08-04 21:37:01,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2019-08-04 21:37:01,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-08-04 21:37:01,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-08-04 21:37:01,132 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2019-08-04 21:37:01,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:37:01,132 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-08-04 21:37:01,132 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-08-04 21:37:01,132 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-08-04 21:37:01,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-08-04 21:37:01,133 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:37:01,133 INFO L399 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1] [2019-08-04 21:37:01,133 INFO L418 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:37:01,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:37:01,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1911584254, now seen corresponding path program 4 times [2019-08-04 21:37:01,135 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:37:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:37:01,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 25 conjunts are in the unsatisfiable core [2019-08-04 21:37:01,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:37:01,287 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:01,400 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:01,509 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:01,510 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:01,513 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:01,514 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:01,516 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:01,517 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:02,875 WARN L188 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-08-04 21:37:02,878 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 5 terms [2019-08-04 21:37:03,236 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-04 21:37:03,241 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-04 21:37:03,290 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:37:03,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-08-04 21:37:03,290 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-08-04 21:37:03,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-08-04 21:37:03,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-08-04 21:37:03,291 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 9 states. [2019-08-04 21:37:05,444 WARN L188 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 54 [2019-08-04 21:37:05,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:37:05,570 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-08-04 21:37:05,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-08-04 21:37:05,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 12 [2019-08-04 21:37:05,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:37:05,571 INFO L225 Difference]: With dead ends: 15 [2019-08-04 21:37:05,571 INFO L226 Difference]: Without dead ends: 15 [2019-08-04 21:37:05,572 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-08-04 21:37:05,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-08-04 21:37:05,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-08-04 21:37:05,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-08-04 21:37:05,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-08-04 21:37:05,577 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 12 [2019-08-04 21:37:05,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:37:05,577 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-08-04 21:37:05,577 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-08-04 21:37:05,577 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-08-04 21:37:05,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-08-04 21:37:05,578 INFO L391 BasicCegarLoop]: Found error trace [2019-08-04 21:37:05,578 INFO L399 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1] [2019-08-04 21:37:05,579 INFO L418 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-04 21:37:05,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-04 21:37:05,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1213609811, now seen corresponding path program 5 times [2019-08-04 21:37:05,580 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-04 21:37:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-04 21:37:05,725 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 11 conjunts are in the unsatisfiable core [2019-08-04 21:37:05,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-04 21:37:05,833 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:05,843 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-04 21:37:06,065 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 27 [2019-08-04 21:37:06,084 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-08-04 21:37:06,085 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-08-04 21:37:06,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2019-08-04 21:37:06,085 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-04 21:37:06,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-04 21:37:06,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-08-04 21:37:06,086 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 4 states. [2019-08-04 21:37:06,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-04 21:37:06,107 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-04 21:37:06,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-04 21:37:06,108 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-08-04 21:37:06,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-04 21:37:06,108 INFO L225 Difference]: With dead ends: 4 [2019-08-04 21:37:06,108 INFO L226 Difference]: Without dead ends: 0 [2019-08-04 21:37:06,108 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 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 21:37:06,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-04 21:37:06,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-04 21:37:06,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-04 21:37:06,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-04 21:37:06,109 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-08-04 21:37:06,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-04 21:37:06,110 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-04 21:37:06,110 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-04 21:37:06,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-04 21:37:06,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-04 21:37:06,115 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.3.ufo.BOUNDED-6.pals.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.08 09:37:06 BoogieIcfgContainer [2019-08-04 21:37:06,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-04 21:37:06,117 INFO L168 Benchmark]: Toolchain (without parser) took 8803.99 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 110.0 MB in the beginning and 50.8 MB in the end (delta: 59.2 MB). Peak memory consumption was 122.1 MB. Max. memory is 7.1 GB. [2019-08-04 21:37:06,118 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 111.8 MB in the beginning and 111.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-04 21:37:06,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.72 ms. Allocated memory is still 134.2 MB. Free memory was 109.8 MB in the beginning and 108.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-04 21:37:06,120 INFO L168 Benchmark]: Boogie Preprocessor took 29.91 ms. Allocated memory is still 134.2 MB. Free memory was 108.0 MB in the beginning and 106.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-04 21:37:06,121 INFO L168 Benchmark]: RCFGBuilder took 983.06 ms. Allocated memory is still 134.2 MB. Free memory was 106.7 MB in the beginning and 72.7 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. [2019-08-04 21:37:06,122 INFO L168 Benchmark]: TraceAbstraction took 7748.13 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 72.3 MB in the beginning and 50.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2019-08-04 21:37:06,127 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 134.2 MB. Free memory was 111.8 MB in the beginning and 111.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.72 ms. Allocated memory is still 134.2 MB. Free memory was 109.8 MB in the beginning and 108.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.91 ms. Allocated memory is still 134.2 MB. Free memory was 108.0 MB in the beginning and 106.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 983.06 ms. Allocated memory is still 134.2 MB. Free memory was 106.7 MB in the beginning and 72.7 MB in the end (delta: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 7748.13 ms. Allocated memory was 134.2 MB in the beginning and 197.1 MB in the end (delta: 62.9 MB). Free memory was 72.3 MB in the beginning and 50.8 MB in the end (delta: 21.5 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 314]: 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, 7.6s OverallTime, 6 OverallIterations, 6 TraceHistogramMax, 3.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 14 SDslu, 36 SDs, 0 SdLazy, 112 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0.6s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 54 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 48 ConstructedInterpolants, 8 QuantifiedInterpolants, 11391 SizeOfPredicates, 117 NumberOfNonLiveVariables, 1053 ConjunctsInSsa, 93 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 35/70 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...