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_17.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:53:24,754 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:53:24,757 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:53:24,770 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:53:24,770 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:53:24,771 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:53:24,773 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:53:24,774 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:53:24,776 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:53:24,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:53:24,778 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:53:24,778 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:53:24,779 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:53:24,780 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:53:24,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:53:24,782 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:53:24,785 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:53:24,787 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:53:24,791 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:53:24,792 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:53:24,794 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:53:24,796 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:53:24,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:53:24,799 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:53:24,801 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:53:24,802 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:53:24,803 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:53:24,806 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:53:24,807 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:53:24,809 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:53:24,810 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:53:24,811 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-14 16:53:24,811 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-14 16:53:24,811 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-14 16:53:24,812 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-14 16:53:24,813 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-14 16:53:24,815 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 16:53:24,828 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:53:24,828 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:53:24,830 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:53:24,830 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:53:24,830 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:53:24,830 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:53:24,831 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:53:24,831 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:53:24,831 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:53:24,832 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:53:24,832 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:53:24,832 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:53:24,832 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:53:24,833 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:53:24,833 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:53:24,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:53:24,909 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:53:24,916 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:53:24,917 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:53:24,918 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:53:24,918 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl [2018-10-14 16:53:24,919 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl' [2018-10-14 16:53:25,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:53:25,004 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:53:25,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:53:25,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:53:25,005 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:53:25,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (1/1) ... [2018-10-14 16:53:25,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (1/1) ... [2018-10-14 16:53:25,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (1/1) ... [2018-10-14 16:53:25,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (1/1) ... [2018-10-14 16:53:25,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (1/1) ... [2018-10-14 16:53:25,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (1/1) ... [2018-10-14 16:53:25,085 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (1/1) ... [2018-10-14 16:53:25,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:53:25,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:53:25,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:53:25,094 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:53:25,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (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 16:53:25,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:53:25,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:53:25,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:53:25,960 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:53:25,961 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:25 BoogieIcfgContainer [2018-10-14 16:53:25,961 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:53:25,962 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:53:25,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:53:25,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:53:25,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:53:24" (1/2) ... [2018-10-14 16:53:25,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e041432 and model type sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:53:25, skipping insertion in model container [2018-10-14 16:53:25,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:53:25" (2/2) ... [2018-10-14 16:53:25,968 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl [2018-10-14 16:53:25,978 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:53:25,989 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:53:26,007 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:53:26,038 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:53:26,039 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:53:26,039 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:53:26,039 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:53:26,039 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:53:26,039 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:53:26,040 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:53:26,040 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:53:26,040 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:53:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-10-14 16:53:26,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-14 16:53:26,071 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:26,072 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] [2018-10-14 16:53:26,073 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:26,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:26,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1926780616, now seen corresponding path program 1 times [2018-10-14 16:53:26,125 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:26,934 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 16:53:26,937 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:53:26,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-14 16:53:26,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-14 16:53:26,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-14 16:53:26,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-14 16:53:26,963 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 13 states. [2018-10-14 16:53:29,164 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-14 16:53:29,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:29,414 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-10-14 16:53:29,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-14 16:53:29,416 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2018-10-14 16:53:29,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:29,432 INFO L225 Difference]: With dead ends: 189 [2018-10-14 16:53:29,432 INFO L226 Difference]: Without dead ends: 189 [2018-10-14 16:53:29,435 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2018-10-14 16:53:29,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-10-14 16:53:29,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 155. [2018-10-14 16:53:29,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-10-14 16:53:29,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-10-14 16:53:29,490 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 89 [2018-10-14 16:53:29,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:29,491 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-10-14 16:53:29,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-14 16:53:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-10-14 16:53:29,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-14 16:53:29,498 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:53:29,498 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:53:29,499 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:53:29,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:53:29,499 INFO L82 PathProgramCache]: Analyzing trace with hash -687612343, now seen corresponding path program 1 times [2018-10-14 16:53:29,500 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:53:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:53:30,622 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-14 16:53:30,623 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:53:30,623 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-14 16:53:30,625 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-14 16:53:30,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-14 16:53:30,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:53:30,627 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 20 states. [2018-10-14 16:53:31,806 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2018-10-14 16:53:32,127 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2018-10-14 16:53:32,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:53:32,656 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-14 16:53:32,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-14 16:53:32,657 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 154 [2018-10-14 16:53:32,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:53:32,658 INFO L225 Difference]: With dead ends: 153 [2018-10-14 16:53:32,659 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:53:32,660 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2018-10-14 16:53:32,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:53:32,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:53:32,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:53:32,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:53:32,661 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2018-10-14 16:53:32,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:53:32,662 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:53:32,662 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-14 16:53:32,662 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:53:32,662 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:53:32,667 INFO L202 PluginConnector]: Adding new model sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:53:32 BoogieIcfgContainer [2018-10-14 16:53:32,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:53:32,668 INFO L168 Benchmark]: Toolchain (without parser) took 7665.10 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 35.1 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 30.1 MB). Peak memory consumption was 65.2 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:32,670 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 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 16:53:32,670 INFO L168 Benchmark]: Boogie Preprocessor took 87.30 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 16:53:32,671 INFO L168 Benchmark]: RCFGBuilder took 867.19 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 16:53:32,672 INFO L168 Benchmark]: TraceAbstraction took 6705.59 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 35.1 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -12.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2018-10-14 16:53:32,675 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 0.16 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 87.30 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 867.19 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 6705.59 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 35.1 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -12.2 MB). Peak memory consumption was 22.9 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, 6.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 4.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 147 SDtfs, 1571 SDslu, 845 SDs, 0 SdLazy, 1022 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred 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, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 243 NumberOfCodeBlocks, 243 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 290819 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/40 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_17.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-53-32-687.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-53-32-687.csv Received shutdown request...