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_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:45:53,376 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:45:53,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:45:53,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:45:53,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:45:53,394 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:45:53,396 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:45:53,398 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:45:53,404 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:45:53,405 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:45:53,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:45:53,410 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:45:53,411 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:45:53,413 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:45:53,414 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:45:53,417 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:45:53,418 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:45:53,423 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:45:53,424 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:45:53,428 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:45:53,429 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:45:53,431 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:45:53,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:45:53,434 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:45:53,434 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:45:53,436 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:45:53,437 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:45:53,441 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:45:53,442 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:45:53,444 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:45:53,444 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:45:53,445 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 15:45:53,445 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 15:45:53,445 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 15:45:53,447 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 15:45:53,448 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 15:45:53,448 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 15:45:53,467 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:45:53,467 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:45:53,469 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:45:53,469 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:45:53,469 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:45:53,469 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:45:53,470 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:45:53,470 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:45:53,471 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:45:53,471 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:45:53,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:45:53,471 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:45:53,471 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:45:53,472 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:45:53,473 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:45:53,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:45:53,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:45:53,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:45:53,564 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:45:53,565 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:45:53,566 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl [2018-10-10 15:45:53,566 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl' [2018-10-10 15:45:53,669 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:45:53,671 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:45:53,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:45:53,672 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:45:53,672 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:45:53,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (1/1) ... [2018-10-10 15:45:53,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (1/1) ... [2018-10-10 15:45:53,726 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (1/1) ... [2018-10-10 15:45:53,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (1/1) ... [2018-10-10 15:45:53,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (1/1) ... [2018-10-10 15:45:53,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (1/1) ... [2018-10-10 15:45:53,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (1/1) ... [2018-10-10 15:45:53,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:45:53,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:45:53,766 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:45:53,766 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:45:53,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (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 15:45:53,836 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:45:53,836 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:45:53,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:45:54,717 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:45:54,719 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:45:54 BoogieIcfgContainer [2018-10-10 15:45:54,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:45:54,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:45:54,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:45:54,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:45:54,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:45:53" (1/2) ... [2018-10-10 15:45:54,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2331ec50 and model type sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:45:54, skipping insertion in model container [2018-10-10 15:45:54,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:45:54" (2/2) ... [2018-10-10 15:45:54,728 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl [2018-10-10 15:45:54,740 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:45:54,751 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:45:54,772 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:45:54,806 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:45:54,807 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:45:54,807 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:45:54,807 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:45:54,807 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:45:54,807 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:45:54,807 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:45:54,808 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:45:54,808 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:45:54,843 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-10-10 15:45:54,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-10 15:45:54,866 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:45:54,867 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] [2018-10-10 15:45:54,868 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:45:54,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:45:54,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1600413654, now seen corresponding path program 1 times [2018-10-10 15:45:54,943 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:45:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:45:55,655 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 15:45:55,658 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:45:55,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-10 15:45:55,664 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-10 15:45:55,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-10 15:45:55,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:45:55,684 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 10 states. [2018-10-10 15:45:56,819 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-10 15:45:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:45:57,159 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-10-10 15:45:57,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-10 15:45:57,163 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2018-10-10 15:45:57,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:45:57,180 INFO L225 Difference]: With dead ends: 182 [2018-10-10 15:45:57,181 INFO L226 Difference]: Without dead ends: 182 [2018-10-10 15:45:57,183 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-10-10 15:45:57,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-10-10 15:45:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 154. [2018-10-10 15:45:57,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-10 15:45:57,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-10-10 15:45:57,236 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 88 [2018-10-10 15:45:57,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:45:57,237 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-10-10 15:45:57,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-10 15:45:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-10-10 15:45:57,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-10 15:45:57,244 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:45:57,245 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:45:57,246 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:45:57,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:45:57,246 INFO L82 PathProgramCache]: Analyzing trace with hash -707260594, now seen corresponding path program 1 times [2018-10-10 15:45:57,247 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:45:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:45:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:45:57,752 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:45:57,752 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-10 15:45:57,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-10 15:45:57,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-10 15:45:57,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-10 15:45:57,756 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 12 states. [2018-10-10 15:45:58,621 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-10-10 15:45:58,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:45:58,816 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2018-10-10 15:45:58,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 15:45:58,816 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 153 [2018-10-10 15:45:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:45:58,822 INFO L225 Difference]: With dead ends: 180 [2018-10-10 15:45:58,822 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:45:58,823 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-10-10 15:45:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:45:58,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:45:58,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:45:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:45:58,824 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2018-10-10 15:45:58,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:45:58,825 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:45:58,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-10 15:45:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:45:58,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:45:58,830 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:45:58 BoogieIcfgContainer [2018-10-10 15:45:58,830 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:45:58,831 INFO L168 Benchmark]: Toolchain (without parser) took 5161.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 253.8 MB). Peak memory consumption was 253.8 MB. Max. memory is 7.1 GB. [2018-10-10 15:45:58,833 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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 15:45:58,834 INFO L168 Benchmark]: Boogie Preprocessor took 93.79 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 15:45:58,834 INFO L168 Benchmark]: RCFGBuilder took 953.43 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:45:58,836 INFO L168 Benchmark]: TraceAbstraction took 4109.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:45:58,840 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 0.21 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 93.79 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 953.43 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4109.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 242]: 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, 117 locations, 1 error locations. SAFE Result, 4.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 229 SDtfs, 695 SDslu, 962 SDs, 0 SdLazy, 590 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 28 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 241 NumberOfCodeBlocks, 241 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 239 ConstructedInterpolants, 0 QuantifiedInterpolants, 105664 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/39 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_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-45-58-852.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-45-58-852.csv Received shutdown request...