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-b8f97f7-m [2018-10-10 15:46:01,351 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:46:01,354 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:46:01,368 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:46:01,368 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:46:01,370 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:46:01,372 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:46:01,375 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:46:01,376 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:46:01,379 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:46:01,380 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:46:01,380 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:46:01,381 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:46:01,382 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:46:01,387 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:46:01,388 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:46:01,388 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:46:01,397 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:46:01,402 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:46:01,407 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:46:01,408 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:46:01,410 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:46:01,416 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 15:46:01,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 15:46:01,416 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 15:46:01,418 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 15:46:01,420 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 15:46:01,421 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 15:46:01,423 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 15:46:01,425 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 15:46:01,427 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 15:46:01,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 15:46:01,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 15:46:01,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 15:46:01,431 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 15:46:01,431 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 15:46:01,432 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 15:46:01,448 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:46:01,448 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:46:01,449 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:46:01,449 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:46:01,449 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:46:01,449 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:46:01,450 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:46:01,450 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:46:01,451 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:46:01,451 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:46:01,451 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:46:01,451 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:46:01,451 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:46:01,452 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:46:01,453 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:46:01,496 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:46:01,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:46:01,517 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:46:01,519 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:46:01,520 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:46:01,521 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl [2018-10-10 15:46:01,521 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl' [2018-10-10 15:46:01,631 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:46:01,633 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:46:01,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:46:01,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:46:01,635 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:46:01,665 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 10.10 03:46:01" (1/1) ... [2018-10-10 15:46:01,667 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 10.10 03:46:01" (1/1) ... [2018-10-10 15:46:01,689 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 10.10 03:46:01" (1/1) ... [2018-10-10 15:46:01,690 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 10.10 03:46:01" (1/1) ... [2018-10-10 15:46:01,707 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 10.10 03:46:01" (1/1) ... [2018-10-10 15:46:01,710 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 10.10 03:46:01" (1/1) ... [2018-10-10 15:46:01,712 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 10.10 03:46:01" (1/1) ... [2018-10-10 15:46:01,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:46:01,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:46:01,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:46:01,717 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:46:01,718 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 10.10 03:46:01" (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 15:46:01,791 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:46:01,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:46:01,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:46:02,573 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:46:02,574 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 10.10 03:46:02 BoogieIcfgContainer [2018-10-10 15:46:02,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:46:02,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:46:02,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:46:02,579 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:46:02,579 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 10.10 03:46:01" (1/2) ... [2018-10-10 15:46:02,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e178ac4 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 10.10 03:46:02, skipping insertion in model container [2018-10-10 15:46:02,580 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 10.10 03:46:02" (2/2) ... [2018-10-10 15:46:02,582 INFO L112 eAbstractionObserver]: Analyzing ICFG sll_to_dll_rev_true-unreach-call_true-valid-memsafety.i_17.bpl [2018-10-10 15:46:02,592 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:46:02,601 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:46:02,620 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:46:02,650 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:46:02,651 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:46:02,651 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:46:02,652 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:46:02,652 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:46:02,652 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:46:02,652 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:46:02,652 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:46:02,652 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:46:02,674 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-10-10 15:46:02,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-10 15:46:02,687 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:46:02,688 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] [2018-10-10 15:46:02,689 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:46:02,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:46:02,696 INFO L82 PathProgramCache]: Analyzing trace with hash 1926780616, now seen corresponding path program 1 times [2018-10-10 15:46:02,757 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:46:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:46:03,618 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 15:46:03,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:46:03,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-10-10 15:46:03,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-10 15:46:03,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-10 15:46:03,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-10-10 15:46:03,647 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 13 states. [2018-10-10 15:46:05,730 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-10 15:46:05,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:46:05,950 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2018-10-10 15:46:05,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-10 15:46:05,953 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 89 [2018-10-10 15:46:05,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:46:05,971 INFO L225 Difference]: With dead ends: 189 [2018-10-10 15:46:05,971 INFO L226 Difference]: Without dead ends: 189 [2018-10-10 15:46:05,973 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=163, Invalid=539, Unknown=0, NotChecked=0, Total=702 [2018-10-10 15:46:05,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2018-10-10 15:46:06,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 155. [2018-10-10 15:46:06,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-10-10 15:46:06,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2018-10-10 15:46:06,025 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 89 [2018-10-10 15:46:06,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:46:06,026 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2018-10-10 15:46:06,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-10 15:46:06,027 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2018-10-10 15:46:06,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-10-10 15:46:06,032 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:46:06,032 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] [2018-10-10 15:46:06,033 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:46:06,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:46:06,033 INFO L82 PathProgramCache]: Analyzing trace with hash -687612343, now seen corresponding path program 1 times [2018-10-10 15:46:06,034 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:46:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:46:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-10 15:46:07,142 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:46:07,142 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-10 15:46:07,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-10 15:46:07,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-10 15:46:07,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2018-10-10 15:46:07,146 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand 20 states. [2018-10-10 15:46:08,412 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2018-10-10 15:46:09,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:46:09,297 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2018-10-10 15:46:09,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-10 15:46:09,298 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 154 [2018-10-10 15:46:09,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:46:09,300 INFO L225 Difference]: With dead ends: 153 [2018-10-10 15:46:09,300 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:46:09,302 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 6 SyntacticMatches, 6 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=337, Invalid=1069, Unknown=0, NotChecked=0, Total=1406 [2018-10-10 15:46:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:46:09,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:46:09,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:46:09,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:46:09,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2018-10-10 15:46:09,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:46:09,303 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:46:09,304 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-10 15:46:09,304 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:46:09,304 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:46:09,308 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 10.10 03:46:09 BoogieIcfgContainer [2018-10-10 15:46:09,308 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:46:09,309 INFO L168 Benchmark]: Toolchain (without parser) took 7677.34 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 30.9 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 33.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:46:09,311 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 15:46:09,312 INFO L168 Benchmark]: Boogie Preprocessor took 81.36 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 15:46:09,312 INFO L168 Benchmark]: RCFGBuilder took 857.91 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 15:46:09,314 INFO L168 Benchmark]: TraceAbstraction took 6733.38 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 30.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -8.7 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2018-10-10 15:46:09,318 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 81.36 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 857.91 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 6733.38 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 30.9 MB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -8.7 MB). Peak memory consumption was 22.3 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, 3.3s 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-0-2018-10-10_15-46-09-330.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-0-2018-10-10_15-46-09-330.csv Received shutdown request...