java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -s ../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf -i ../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:43:58,823 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:43:58,825 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:43:58,838 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-10 15:43:58,899 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:43:58,915 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:43:58,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:43:58,918 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:43:58,918 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:43:58,918 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:43:58,918 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:43:58,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:43:58,920 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:43:58,920 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:43:58,920 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:43:58,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:43:58,921 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:43:58,921 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:43:58,922 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:43:58,922 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:43:58,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:43:59,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:43:59,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:43:59,020 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:43:59,021 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:43:59,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl [2018-10-10 15:43:59,022 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl' [2018-10-10 15:43:59,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:43:59,139 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:43:59,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:43:59,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:43:59,140 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:43:59,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (1/1) ... [2018-10-10 15:43:59,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (1/1) ... [2018-10-10 15:43:59,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (1/1) ... [2018-10-10 15:43:59,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (1/1) ... [2018-10-10 15:43:59,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (1/1) ... [2018-10-10 15:43:59,221 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (1/1) ... [2018-10-10 15:43:59,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (1/1) ... [2018-10-10 15:43:59,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:43:59,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:43:59,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:43:59,239 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:43:59,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (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 [2018-10-10 15:43:59,303 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:43:59,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:43:59,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:44:00,324 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:44:00,325 INFO L202 PluginConnector]: Adding new model sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:44:00 BoogieIcfgContainer [2018-10-10 15:44:00,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:44:00,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:44:00,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:44:00,330 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:44:00,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:43:59" (1/2) ... [2018-10-10 15:44:00,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8696345 and model type sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:44:00, skipping insertion in model container [2018-10-10 15:44:00,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:44:00" (2/2) ... [2018-10-10 15:44:00,334 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl [2018-10-10 15:44:00,344 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:44:00,353 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:44:00,371 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:44:00,401 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:44:00,402 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:44:00,402 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:44:00,402 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:44:00,402 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:44:00,403 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:44:00,403 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:44:00,403 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:44:00,403 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:44:00,436 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2018-10-10 15:44:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-10 15:44:00,472 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:44:00,475 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:44:00,477 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:44:00,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:44:00,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1911280593, now seen corresponding path program 1 times [2018-10-10 15:44:00,549 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:44:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:44:01,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:44:01,180 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:44:01,181 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 15:44:01,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:44:01,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:44:01,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:44:01,207 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 6 states. [2018-10-10 15:44:01,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:44:01,625 INFO L93 Difference]: Finished difference Result 216 states and 216 transitions. [2018-10-10 15:44:01,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-10 15:44:01,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-10-10 15:44:01,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:44:01,644 INFO L225 Difference]: With dead ends: 216 [2018-10-10 15:44:01,644 INFO L226 Difference]: Without dead ends: 216 [2018-10-10 15:44:01,646 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:44:01,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2018-10-10 15:44:01,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 178. [2018-10-10 15:44:01,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-10-10 15:44:01,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-10-10 15:44:01,696 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 138 [2018-10-10 15:44:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:44:01,698 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-10-10 15:44:01,698 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:44:01,698 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-10-10 15:44:01,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-10 15:44:01,702 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:44:01,702 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:44:01,703 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:44:01,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:44:01,703 INFO L82 PathProgramCache]: Analyzing trace with hash -981874200, now seen corresponding path program 1 times [2018-10-10 15:44:01,704 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:44:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:44:04,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:44:04,663 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:44:04,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2018-10-10 15:44:04,665 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2018-10-10 15:44:04,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2018-10-10 15:44:04,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1517, Unknown=0, NotChecked=0, Total=1640 [2018-10-10 15:44:04,667 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 41 states. [2018-10-10 15:44:07,098 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-10-10 15:44:07,447 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2018-10-10 15:44:07,590 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2018-10-10 15:44:07,910 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2018-10-10 15:44:10,063 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-10-10 15:44:13,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:44:13,291 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2018-10-10 15:44:13,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-10-10 15:44:13,292 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 177 [2018-10-10 15:44:13,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:44:13,296 INFO L225 Difference]: With dead ends: 247 [2018-10-10 15:44:13,296 INFO L226 Difference]: Without dead ends: 247 [2018-10-10 15:44:13,301 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1717 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1198, Invalid=7174, Unknown=0, NotChecked=0, Total=8372 [2018-10-10 15:44:13,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-10-10 15:44:13,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 217. [2018-10-10 15:44:13,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-10-10 15:44:13,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 217 transitions. [2018-10-10 15:44:13,316 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 217 transitions. Word has length 177 [2018-10-10 15:44:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:44:13,317 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 217 transitions. [2018-10-10 15:44:13,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 41 states. [2018-10-10 15:44:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 217 transitions. [2018-10-10 15:44:13,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-10-10 15:44:13,320 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:44:13,321 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:44:13,321 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:44:13,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:44:13,322 INFO L82 PathProgramCache]: Analyzing trace with hash 131112463, now seen corresponding path program 2 times [2018-10-10 15:44:13,323 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:44:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:44:17,134 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:44:17,134 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:44:17,134 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [54] total 54 [2018-10-10 15:44:17,135 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2018-10-10 15:44:17,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2018-10-10 15:44:17,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=2720, Unknown=0, NotChecked=0, Total=2862 [2018-10-10 15:44:17,137 INFO L87 Difference]: Start difference. First operand 217 states and 217 transitions. Second operand 54 states. [2018-10-10 15:44:19,088 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-10-10 15:44:19,269 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-10-10 15:44:19,639 WARN L178 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-10-10 15:44:19,799 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2018-10-10 15:44:20,021 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-10 15:44:20,221 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2018-10-10 15:44:20,681 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-10 15:44:20,923 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-10 15:44:22,380 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2018-10-10 15:44:22,862 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2018-10-10 15:44:23,128 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2018-10-10 15:44:23,567 WARN L178 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 82 [2018-10-10 15:44:23,863 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 87 [2018-10-10 15:44:24,046 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2018-10-10 15:44:24,196 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2018-10-10 15:44:24,553 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2018-10-10 15:44:24,774 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2018-10-10 15:44:25,924 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-10-10 15:44:26,111 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2018-10-10 15:44:29,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:44:29,514 INFO L93 Difference]: Finished difference Result 286 states and 286 transitions. [2018-10-10 15:44:29,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2018-10-10 15:44:29,515 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 216 [2018-10-10 15:44:29,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:44:29,517 INFO L225 Difference]: With dead ends: 286 [2018-10-10 15:44:29,517 INFO L226 Difference]: Without dead ends: 286 [2018-10-10 15:44:29,522 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3599 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=1301, Invalid=13951, Unknown=0, NotChecked=0, Total=15252 [2018-10-10 15:44:29,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2018-10-10 15:44:29,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 256. [2018-10-10 15:44:29,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-10-10 15:44:29,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 256 transitions. [2018-10-10 15:44:29,538 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 256 transitions. Word has length 216 [2018-10-10 15:44:29,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:44:29,539 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 256 transitions. [2018-10-10 15:44:29,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 54 states. [2018-10-10 15:44:29,539 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 256 transitions. [2018-10-10 15:44:29,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-10-10 15:44:29,543 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:44:29,543 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:44:29,544 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:44:29,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:44:29,544 INFO L82 PathProgramCache]: Analyzing trace with hash -2117927928, now seen corresponding path program 3 times [2018-10-10 15:44:29,545 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:44:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:44:30,821 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-10-10 15:44:31,151 WARN L178 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 12 [2018-10-10 15:44:31,881 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 15 [2018-10-10 15:44:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:44:46,003 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:44:46,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [68] total 68 [2018-10-10 15:44:46,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 68 states [2018-10-10 15:44:46,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2018-10-10 15:44:46,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=4387, Unknown=0, NotChecked=0, Total=4556 [2018-10-10 15:44:46,006 INFO L87 Difference]: Start difference. First operand 256 states and 256 transitions. Second operand 68 states. [2018-10-10 15:44:48,297 WARN L178 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2018-10-10 15:44:50,358 WARN L178 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2018-10-10 15:44:50,933 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2018-10-10 15:44:51,218 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2018-10-10 15:44:51,595 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2018-10-10 15:44:51,843 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2018-10-10 15:44:52,217 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-10 15:44:52,515 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-10 15:44:53,107 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2018-10-10 15:44:53,391 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2018-10-10 15:44:54,101 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2018-10-10 15:44:54,362 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2018-10-10 15:44:55,732 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2018-10-10 15:44:56,435 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2018-10-10 15:44:56,788 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2018-10-10 15:44:57,353 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2018-10-10 15:44:57,685 WARN L178 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2018-10-10 15:45:01,198 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2018-10-10 15:45:02,472 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2018-10-10 15:45:03,454 WARN L178 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2018-10-10 15:45:04,114 WARN L178 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2018-10-10 15:45:07,406 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2018-10-10 15:45:07,963 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2018-10-10 15:45:08,319 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2018-10-10 15:45:11,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:45:11,910 INFO L93 Difference]: Finished difference Result 333 states and 333 transitions. [2018-10-10 15:45:11,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-10-10 15:45:11,918 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 255 [2018-10-10 15:45:11,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:45:11,920 INFO L225 Difference]: With dead ends: 333 [2018-10-10 15:45:11,921 INFO L226 Difference]: Without dead ends: 331 [2018-10-10 15:45:11,927 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 51 SyntacticMatches, 12 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4481 ImplicationChecksByTransitivity, 28.0s TimeCoverageRelationStatistics Valid=1041, Invalid=20715, Unknown=0, NotChecked=0, Total=21756 [2018-10-10 15:45:11,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2018-10-10 15:45:11,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 295. [2018-10-10 15:45:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2018-10-10 15:45:11,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 295 transitions. [2018-10-10 15:45:11,940 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 295 transitions. Word has length 255 [2018-10-10 15:45:11,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:45:11,941 INFO L481 AbstractCegarLoop]: Abstraction has 295 states and 295 transitions. [2018-10-10 15:45:11,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 68 states. [2018-10-10 15:45:11,941 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 295 transitions. [2018-10-10 15:45:11,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2018-10-10 15:45:11,946 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:45:11,947 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:45:11,947 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:45:11,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:45:11,948 INFO L82 PathProgramCache]: Analyzing trace with hash 942753775, now seen corresponding path program 4 times [2018-10-10 15:45:11,948 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:45:11,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:45:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 54 proven. 184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:45:16,065 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:45:16,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [65] total 65 [2018-10-10 15:45:16,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2018-10-10 15:45:16,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2018-10-10 15:45:16,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=3988, Unknown=0, NotChecked=0, Total=4160 [2018-10-10 15:45:16,067 INFO L87 Difference]: Start difference. First operand 295 states and 295 transitions. Second operand 65 states. [2018-10-10 15:45:18,641 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2018-10-10 15:45:18,804 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2018-10-10 15:45:19,043 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2018-10-10 15:45:19,249 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-10-10 15:45:19,623 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2018-10-10 15:45:19,823 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-10 15:45:21,307 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2018-10-10 15:45:21,845 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2018-10-10 15:45:22,165 WARN L178 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2018-10-10 15:45:22,630 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2018-10-10 15:45:22,949 WARN L178 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2018-10-10 15:45:23,148 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2018-10-10 15:45:23,698 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2018-10-10 15:45:23,910 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2018-10-10 15:45:25,731 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2018-10-10 15:45:26,903 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2018-10-10 15:45:27,150 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2018-10-10 15:45:31,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:45:31,179 INFO L93 Difference]: Finished difference Result 284 states and 283 transitions. [2018-10-10 15:45:31,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2018-10-10 15:45:31,180 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 294 [2018-10-10 15:45:31,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:45:31,181 INFO L225 Difference]: With dead ends: 284 [2018-10-10 15:45:31,181 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:45:31,184 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5380 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=1398, Invalid=20358, Unknown=0, NotChecked=0, Total=21756 [2018-10-10 15:45:31,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:45:31,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:45:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:45:31,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:45:31,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 294 [2018-10-10 15:45:31,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:45:31,186 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:45:31,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 65 states. [2018-10-10 15:45:31,186 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:45:31,186 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:45:31,191 INFO L202 PluginConnector]: Adding new model sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:45:31 BoogieIcfgContainer [2018-10-10 15:45:31,191 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:45:31,192 INFO L168 Benchmark]: Toolchain (without parser) took 92053.52 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 578.8 MB). Free memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: -314.7 MB). Peak memory consumption was 264.1 MB. Max. memory is 7.1 GB. [2018-10-10 15:45:31,193 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:45:31,193 INFO L168 Benchmark]: Boogie Preprocessor took 97.71 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:45:31,194 INFO L168 Benchmark]: RCFGBuilder took 1087.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:45:31,195 INFO L168 Benchmark]: TraceAbstraction took 90864.30 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 578.8 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -367.5 MB). Peak memory consumption was 211.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:45:31,198 INFO L336 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 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.71 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1087.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 90864.30 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 578.8 MB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -367.5 MB). Peak memory consumption was 211.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 279]: 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, 179 locations, 1 error locations. SAFE Result, 90.7s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 62.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 572 SDtfs, 6393 SDslu, 13097 SDs, 0 SdLazy, 25015 SolverSat, 537 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 24.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 604 GetRequests, 72 SyntacticMatches, 20 SemanticMatches, 512 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15180 ImplicationChecksByTransitivity, 58.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=295occurred in iteration=4, 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, 5 MinimizatonAttempts, 134 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 26.5s InterpolantComputationTime, 1080 NumberOfCodeBlocks, 1080 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1075 ConstructedInterpolants, 0 QuantifiedInterpolants, 5443275 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 54/400 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-45-31-209.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll-buckets_true-unreach-call_true-valid-memsafety.i_34.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-45-31-209.csv Received shutdown request...