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_35.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:51:21,739 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:51:21,742 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:51:21,753 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-10-14 16:51:21,800 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-14 16:51:21,809 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:51:21,810 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:51:21,810 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:51:21,811 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:51:21,813 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:51:21,813 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:51:21,814 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:51:21,815 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:51:21,815 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:51:21,815 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:51:21,815 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:51:21,815 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:51:21,816 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:51:21,817 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:51:21,817 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:51:21,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:51:21,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:51:21,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:51:21,884 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:51:21,885 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:51:21,886 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl [2018-10-14 16:51:21,886 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl' [2018-10-14 16:51:21,980 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:51:21,982 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:51:21,982 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:51:21,982 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:51:21,983 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:51:22,010 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (1/1) ... [2018-10-14 16:51:22,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (1/1) ... [2018-10-14 16:51:22,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (1/1) ... [2018-10-14 16:51:22,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (1/1) ... [2018-10-14 16:51:22,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (1/1) ... [2018-10-14 16:51:22,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (1/1) ... [2018-10-14 16:51:22,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (1/1) ... [2018-10-14 16:51:22,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:51:22,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:51:22,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:51:22,080 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:51:22,081 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (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 [2018-10-14 16:51:22,155 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:51:22,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:51:22,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:51:23,241 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:51:23,242 INFO L202 PluginConnector]: Adding new model sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:51:23 BoogieIcfgContainer [2018-10-14 16:51:23,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:51:23,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:51:23,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:51:23,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:51:23,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:21" (1/2) ... [2018-10-14 16:51:23,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb0c493 and model type sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:51:23, skipping insertion in model container [2018-10-14 16:51:23,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:51:23" (2/2) ... [2018-10-14 16:51:23,252 INFO L112 eAbstractionObserver]: Analyzing ICFG sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl [2018-10-14 16:51:23,264 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:51:23,275 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:51:23,294 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:51:23,329 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:51:23,330 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:51:23,330 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:51:23,330 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:51:23,331 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:51:23,331 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:51:23,331 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:51:23,331 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:51:23,331 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:51:23,366 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2018-10-14 16:51:23,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-10-14 16:51:23,397 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:51:23,400 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] [2018-10-14 16:51:23,402 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:51:23,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:51:23,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1911372851, now seen corresponding path program 1 times [2018-10-14 16:51:23,478 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:51:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:51:24,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:51:24,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:51:24,182 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-14 16:51:24,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-14 16:51:24,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-14 16:51:24,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-10-14 16:51:24,211 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 9 states. [2018-10-14 16:51:25,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:51:25,813 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2018-10-14 16:51:25,814 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-14 16:51:25,816 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 138 [2018-10-14 16:51:25,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:51:25,833 INFO L225 Difference]: With dead ends: 212 [2018-10-14 16:51:25,833 INFO L226 Difference]: Without dead ends: 212 [2018-10-14 16:51:25,836 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:51:25,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2018-10-14 16:51:25,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 178. [2018-10-14 16:51:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2018-10-14 16:51:25,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2018-10-14 16:51:25,899 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 138 [2018-10-14 16:51:25,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:51:25,901 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2018-10-14 16:51:25,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-14 16:51:25,904 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2018-10-14 16:51:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-10-14 16:51:25,907 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:51:25,908 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:51:25,908 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:51:25,908 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:51:25,909 INFO L82 PathProgramCache]: Analyzing trace with hash 136862692, now seen corresponding path program 1 times [2018-10-14 16:51:25,910 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:51:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:51:28,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:51:28,831 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:51:28,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2018-10-14 16:51:28,834 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2018-10-14 16:51:28,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2018-10-14 16:51:28,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1949, Unknown=0, NotChecked=0, Total=2070 [2018-10-14 16:51:28,836 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand 46 states. [2018-10-14 16:51:33,842 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2018-10-14 16:51:34,619 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2018-10-14 16:51:34,806 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2018-10-14 16:51:37,183 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2018-10-14 16:51:37,347 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2018-10-14 16:51:38,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:51:38,384 INFO L93 Difference]: Finished difference Result 245 states and 245 transitions. [2018-10-14 16:51:38,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2018-10-14 16:51:38,384 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 177 [2018-10-14 16:51:38,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:51:38,389 INFO L225 Difference]: With dead ends: 245 [2018-10-14 16:51:38,389 INFO L226 Difference]: Without dead ends: 245 [2018-10-14 16:51:38,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1934 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1149, Invalid=8553, Unknown=0, NotChecked=0, Total=9702 [2018-10-14 16:51:38,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-10-14 16:51:38,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 217. [2018-10-14 16:51:38,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2018-10-14 16:51:38,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 217 transitions. [2018-10-14 16:51:38,410 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 217 transitions. Word has length 177 [2018-10-14 16:51:38,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:51:38,410 INFO L481 AbstractCegarLoop]: Abstraction has 217 states and 217 transitions. [2018-10-14 16:51:38,410 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2018-10-14 16:51:38,411 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 217 transitions. [2018-10-14 16:51:38,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-10-14 16:51:38,414 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:51:38,415 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-10-14 16:51:38,415 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:51:38,415 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:51:38,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1423415315, now seen corresponding path program 2 times [2018-10-14 16:51:38,417 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:51:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:51:40,108 WARN L179 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2018-10-14 16:51:43,612 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:51:43,613 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:51:43,613 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [66] total 66 [2018-10-14 16:51:43,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2018-10-14 16:51:43,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2018-10-14 16:51:43,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=4111, Unknown=0, NotChecked=0, Total=4290 [2018-10-14 16:51:43,616 INFO L87 Difference]: Start difference. First operand 217 states and 217 transitions. Second operand 66 states. [2018-10-14 16:51:46,339 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2018-10-14 16:51:46,549 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-10-14 16:51:46,822 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2018-10-14 16:51:47,015 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-10-14 16:51:47,307 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2018-10-14 16:51:47,555 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2018-10-14 16:51:47,980 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70 [2018-10-14 16:51:48,233 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2018-10-14 16:51:48,672 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2018-10-14 16:51:50,185 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2018-10-14 16:51:50,865 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2018-10-14 16:51:51,289 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2018-10-14 16:51:51,715 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2018-10-14 16:51:51,998 WARN L179 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2018-10-14 16:51:52,780 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2018-10-14 16:51:53,184 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2018-10-14 16:51:53,452 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2018-10-14 16:51:54,035 WARN L179 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2018-10-14 16:51:54,264 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2018-10-14 16:51:54,839 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2018-10-14 16:51:55,319 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2018-10-14 16:51:55,584 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-10-14 16:51:55,827 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2018-10-14 16:51:56,202 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2018-10-14 16:51:56,498 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2018-10-14 16:51:56,705 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2018-10-14 16:51:57,238 WARN L179 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-10-14 16:51:57,713 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2018-10-14 16:51:58,049 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2018-10-14 16:51:59,148 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-14 16:52:01,037 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2018-10-14 16:52:01,294 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2018-10-14 16:52:01,947 WARN L179 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-10-14 16:52:03,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:03,264 INFO L93 Difference]: Finished difference Result 284 states and 284 transitions. [2018-10-14 16:52:03,264 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2018-10-14 16:52:03,264 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 216 [2018-10-14 16:52:03,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:03,268 INFO L225 Difference]: With dead ends: 284 [2018-10-14 16:52:03,268 INFO L226 Difference]: Without dead ends: 284 [2018-10-14 16:52:03,274 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4873 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=1590, Invalid=19580, Unknown=0, NotChecked=0, Total=21170 [2018-10-14 16:52:03,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-10-14 16:52:03,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 256. [2018-10-14 16:52:03,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2018-10-14 16:52:03,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 256 transitions. [2018-10-14 16:52:03,291 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 256 transitions. Word has length 216 [2018-10-14 16:52:03,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:03,291 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 256 transitions. [2018-10-14 16:52:03,292 INFO L482 AbstractCegarLoop]: Interpolant automaton has 66 states. [2018-10-14 16:52:03,292 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 256 transitions. [2018-10-14 16:52:03,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-10-14 16:52:03,296 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:52:03,296 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 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] [2018-10-14 16:52:03,297 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:52:03,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:52:03,297 INFO L82 PathProgramCache]: Analyzing trace with hash 528503748, now seen corresponding path program 3 times [2018-10-14 16:52:03,298 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:52:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:52:05,150 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 25 [2018-10-14 16:52:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 6 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:52:08,172 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:52:08,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [64] total 64 [2018-10-14 16:52:08,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2018-10-14 16:52:08,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2018-10-14 16:52:08,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=3872, Unknown=0, NotChecked=0, Total=4032 [2018-10-14 16:52:08,174 INFO L87 Difference]: Start difference. First operand 256 states and 256 transitions. Second operand 64 states. [2018-10-14 16:52:10,541 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2018-10-14 16:52:10,761 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2018-10-14 16:52:10,938 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2018-10-14 16:52:11,200 WARN L179 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-10-14 16:52:11,454 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2018-10-14 16:52:11,974 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2018-10-14 16:52:12,207 WARN L179 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-10-14 16:52:13,886 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2018-10-14 16:52:14,429 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2018-10-14 16:52:14,689 WARN L179 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2018-10-14 16:52:15,137 WARN L179 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2018-10-14 16:52:15,468 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2018-10-14 16:52:15,665 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2018-10-14 16:52:16,204 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2018-10-14 16:52:16,423 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2018-10-14 16:52:17,862 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2018-10-14 16:52:18,093 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2018-10-14 16:52:18,539 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2018-10-14 16:52:18,797 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2018-10-14 16:52:19,155 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2018-10-14 16:52:19,394 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2018-10-14 16:52:19,595 WARN L179 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2018-10-14 16:52:19,825 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2018-10-14 16:52:20,238 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2018-10-14 16:52:20,554 WARN L179 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 102 [2018-10-14 16:52:22,887 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2018-10-14 16:52:24,655 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2018-10-14 16:52:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:52:24,960 INFO L93 Difference]: Finished difference Result 252 states and 251 transitions. [2018-10-14 16:52:24,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-10-14 16:52:24,961 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 255 [2018-10-14 16:52:24,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:52:24,962 INFO L225 Difference]: With dead ends: 252 [2018-10-14 16:52:24,962 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:52:24,968 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5042 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=1387, Invalid=19493, Unknown=0, NotChecked=0, Total=20880 [2018-10-14 16:52:24,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:52:24,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:52:24,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:52:24,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:52:24,969 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 255 [2018-10-14 16:52:24,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:52:24,969 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:52:24,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 64 states. [2018-10-14 16:52:24,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:52:24,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:52:24,974 INFO L202 PluginConnector]: Adding new model sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:52:24 BoogieIcfgContainer [2018-10-14 16:52:24,974 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:52:24,975 INFO L168 Benchmark]: Toolchain (without parser) took 62994.96 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 544.2 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 234.7 MB). Peak memory consumption was 778.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:52:24,977 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-10-14 16:52:24,977 INFO L168 Benchmark]: Boogie Preprocessor took 92.69 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. [2018-10-14 16:52:24,978 INFO L168 Benchmark]: RCFGBuilder took 1166.65 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:52:24,979 INFO L168 Benchmark]: TraceAbstraction took 61731.33 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 544.2 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Peak memory consumption was 726.1 MB. Max. memory is 7.1 GB. [2018-10-14 16:52:24,982 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 0.19 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 92.69 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 1166.65 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 61731.33 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 544.2 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 181.9 MB). Peak memory consumption was 726.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 277]: 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, 177 locations, 1 error locations. SAFE Result, 61.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 47.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 370 SDtfs, 5582 SDslu, 7885 SDs, 0 SdLazy, 18853 SolverSat, 531 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 431 GetRequests, 20 SyntacticMatches, 9 SemanticMatches, 402 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11918 ImplicationChecksByTransitivity, 38.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=256occurred in iteration=3, 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, 4 MinimizatonAttempts, 90 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 12.6s InterpolantComputationTime, 786 NumberOfCodeBlocks, 786 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 782 ConstructedInterpolants, 0 QuantifiedInterpolants, 3781962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/174 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_35.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-52-24-993.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll-buckets_true-unreach-call_true-valid-memsafety.i_35.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-52-24-993.csv Received shutdown request...