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 0.1.23-093a8c0 [2018-10-14 16:53:19,193 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:53:19,196 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:53:19,213 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:53:19,214 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:53:19,215 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:53:19,216 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:53:19,218 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:53:19,219 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:53:19,220 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:53:19,221 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:53:19,221 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:53:19,222 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:53:19,223 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:53:19,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:53:19,225 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:53:19,226 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:53:19,228 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:53:19,230 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:53:19,232 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:53:19,233 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:53:19,234 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:53:19,237 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:53:19,237 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:53:19,237 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:53:19,238 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:53:19,239 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:53:19,240 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:53:19,241 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:53:19,242 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:53:19,242 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:53:19,243 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:53:19,243 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:53:19,243 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:53:19,244 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:53:19,245 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:53:19,245 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 16:53:19,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:53:19,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:53:19,256 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:53:19,256 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:53:19,256 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:53:19,256 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:53:19,257 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:53:19,257 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:53:19,258 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:53:19,258 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:53:19,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:53:19,258 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:53:19,259 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:53:19,259 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:53:19,260 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:53:19,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:53:19,329 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:53:19,336 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:53:19,337 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:53:19,338 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:53:19,339 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl [2018-10-14 16:53:19,339 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl' [2018-10-14 16:53:19,412 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:53:19,414 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:53:19,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:53:19,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:53:19,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:53:19,442 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 14.10 04:53:19" (1/1) ... [2018-10-14 16:53:19,444 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 14.10 04:53:19" (1/1) ... [2018-10-14 16:53:19,463 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 14.10 04:53:19" (1/1) ... [2018-10-14 16:53:19,463 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 14.10 04:53:19" (1/1) ... [2018-10-14 16:53:19,471 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 14.10 04:53:19" (1/1) ... [2018-10-14 16:53:19,474 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 14.10 04:53:19" (1/1) ... [2018-10-14 16:53:19,476 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 14.10 04:53:19" (1/1) ... [2018-10-14 16:53:19,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:53:19,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:53:19,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:53:19,481 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:53:19,482 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 14.10 04:53:19" (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 16:53:19,553 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:53:19,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:53:19,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:53:20,376 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:53:20,377 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 14.10 04:53:20 BoogieIcfgContainer [2018-10-14 16:53:20,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:53:20,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:53:20,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:53:20,381 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:53:20,382 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 14.10 04:53:19" (1/2) ... [2018-10-14 16:53:20,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5205ece8 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 14.10 04:53:20, skipping insertion in model container [2018-10-14 16:53:20,383 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 14.10 04:53:20" (2/2) ... [2018-10-14 16:53:20,385 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_16.bpl [2018-10-14 16:53:20,395 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:53:20,404 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:53:20,422 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:53:20,452 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:53:20,453 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:53:20,453 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:53:20,453 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:53:20,453 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:53:20,453 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:53:20,454 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:53:20,454 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:53:20,454 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:53:20,476 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-10-14 16:53:20,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-14 16:53:20,489 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:20,490 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] [2018-10-14 16:53:20,491 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:20,497 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:20,498 INFO L82 PathProgramCache]: Analyzing trace with hash -1600413654, now seen corresponding path program 1 times [2018-10-14 16:53:20,567 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:20,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:21,300 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 16:53:21,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:53:21,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-10-14 16:53:21,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-14 16:53:21,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-14 16:53:21,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:53:21,330 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 10 states. [2018-10-14 16:53:22,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:22,817 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2018-10-14 16:53:22,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-14 16:53:22,824 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 88 [2018-10-14 16:53:22,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:22,840 INFO L225 Difference]: With dead ends: 182 [2018-10-14 16:53:22,840 INFO L226 Difference]: Without dead ends: 182 [2018-10-14 16:53:22,843 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2018-10-14 16:53:22,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-10-14 16:53:22,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 154. [2018-10-14 16:53:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-10-14 16:53:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2018-10-14 16:53:22,899 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 88 [2018-10-14 16:53:22,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:22,905 INFO L481 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2018-10-14 16:53:22,906 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-14 16:53:22,906 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2018-10-14 16:53:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-10-14 16:53:22,913 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:22,914 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] [2018-10-14 16:53:22,914 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:22,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:22,915 INFO L82 PathProgramCache]: Analyzing trace with hash -707260594, now seen corresponding path program 1 times [2018-10-14 16:53:22,915 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:23,428 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 1 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:53:23,429 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:23,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-14 16:53:23,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:53:23,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:53:23,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:53:23,433 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand 12 states. [2018-10-14 16:53:24,293 WARN L179 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2018-10-14 16:53:24,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:24,425 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2018-10-14 16:53:24,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-14 16:53:24,426 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 153 [2018-10-14 16:53:24,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:24,428 INFO L225 Difference]: With dead ends: 180 [2018-10-14 16:53:24,428 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:53:24,429 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2018-10-14 16:53:24,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:53:24,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:53:24,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:53:24,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:53:24,430 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 153 [2018-10-14 16:53:24,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:24,430 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:53:24,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:53:24,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:53:24,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:53:24,435 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 14.10 04:53:24 BoogieIcfgContainer [2018-10-14 16:53:24,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:53:24,436 INFO L168 Benchmark]: Toolchain (without parser) took 5023.68 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:24,438 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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 16:53:24,439 INFO L168 Benchmark]: Boogie Preprocessor took 65.30 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 16:53:24,439 INFO L168 Benchmark]: RCFGBuilder took 896.41 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. [2018-10-14 16:53:24,440 INFO L168 Benchmark]: TraceAbstraction took 4057.77 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: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:24,444 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 0.20 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 65.30 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 896.41 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 4057.77 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: 211.4 MB). Peak memory consumption was 211.4 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, 3.9s 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, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 1.4s 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-0-2018-10-14_16-53-24-456.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-0-2018-10-14_16-53-24-456.csv Received shutdown request...