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/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:44:13,225 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:44:13,227 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:44:13,244 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:44:13,245 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:44:13,246 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:44:13,247 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:44:13,249 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:44:13,251 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:44:13,252 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:44:13,253 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:44:13,253 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:44:13,254 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:44:13,255 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:44:13,259 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:44:13,260 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:44:13,261 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:44:13,266 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:44:13,268 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:44:13,274 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:44:13,275 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:44:13,276 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:44:13,282 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-14 16:44:13,297 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 16:44:13,314 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:44:13,314 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:44:13,318 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:44:13,319 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:44:13,319 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:44:13,319 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:44:13,320 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:44:13,320 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:44:13,320 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:44:13,320 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:44:13,321 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:44:13,321 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:44:13,321 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:44:13,322 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:44:13,322 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:44:13,371 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:44:13,386 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:44:13,391 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:44:13,393 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:44:13,393 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:44:13,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:44:13,394 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-14 16:44:13,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:44:13,470 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:44:13,471 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:44:13,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:44:13,472 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:44:13,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (1/1) ... [2018-10-14 16:44:13,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (1/1) ... [2018-10-14 16:44:13,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (1/1) ... [2018-10-14 16:44:13,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (1/1) ... [2018-10-14 16:44:13,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (1/1) ... [2018-10-14 16:44:13,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (1/1) ... [2018-10-14 16:44:13,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (1/1) ... [2018-10-14 16:44:13,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:44:13,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:44:13,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:44:13,527 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:44:13,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (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 16:44:13,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:44:13,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:44:13,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:44:14,207 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:44:14,208 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:44:14 BoogieIcfgContainer [2018-10-14 16:44:14,208 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:44:14,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:44:14,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:44:14,212 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:44:14,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:44:13" (1/2) ... [2018-10-14 16:44:14,214 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7472627 and model type lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:44:14, skipping insertion in model container [2018-10-14 16:44:14,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:44:14" (2/2) ... [2018-10-14 16:44:14,216 INFO L112 eAbstractionObserver]: Analyzing ICFG lis-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:44:14,226 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:44:14,234 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:44:14,252 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:44:14,280 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:44:14,281 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:44:14,281 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:44:14,281 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:44:14,281 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:44:14,282 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:44:14,282 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:44:14,282 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:44:14,282 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:44:14,301 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-10-14 16:44:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-14 16:44:14,312 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:44:14,313 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] [2018-10-14 16:44:14,314 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:44:14,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:44:14,321 INFO L82 PathProgramCache]: Analyzing trace with hash -238183958, now seen corresponding path program 1 times [2018-10-14 16:44:14,369 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:44:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:44:15,083 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 16:44:15,086 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:44:15,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 16:44:15,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:44:15,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:44:15,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:44:15,112 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 12 states. [2018-10-14 16:44:15,867 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-14 16:44:16,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:44:16,649 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-10-14 16:44:16,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-14 16:44:16,651 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2018-10-14 16:44:16,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:44:16,664 INFO L225 Difference]: With dead ends: 94 [2018-10-14 16:44:16,665 INFO L226 Difference]: Without dead ends: 94 [2018-10-14 16:44:16,667 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2018-10-14 16:44:16,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-10-14 16:44:16,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2018-10-14 16:44:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2018-10-14 16:44:16,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 88 transitions. [2018-10-14 16:44:16,709 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 88 transitions. Word has length 67 [2018-10-14 16:44:16,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:44:16,710 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 88 transitions. [2018-10-14 16:44:16,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:44:16,711 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 88 transitions. [2018-10-14 16:44:16,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-10-14 16:44:16,714 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:44:16,715 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:44:16,715 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:44:16,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:44:16,716 INFO L82 PathProgramCache]: Analyzing trace with hash -2121530380, now seen corresponding path program 1 times [2018-10-14 16:44:16,718 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:44:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:44:17,179 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:44:17,180 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:44:17,180 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2018-10-14 16:44:17,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:44:17,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:44:17,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:44:17,183 INFO L87 Difference]: Start difference. First operand 88 states and 88 transitions. Second operand 12 states. [2018-10-14 16:44:18,396 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-10-14 16:44:18,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:44:18,533 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2018-10-14 16:44:18,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-14 16:44:18,534 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 87 [2018-10-14 16:44:18,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:44:18,537 INFO L225 Difference]: With dead ends: 118 [2018-10-14 16:44:18,539 INFO L226 Difference]: Without dead ends: 118 [2018-10-14 16:44:18,540 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=134, Invalid=328, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:44:18,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-10-14 16:44:18,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 108. [2018-10-14 16:44:18,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2018-10-14 16:44:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 108 transitions. [2018-10-14 16:44:18,553 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 108 transitions. Word has length 87 [2018-10-14 16:44:18,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:44:18,553 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 108 transitions. [2018-10-14 16:44:18,554 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:44:18,554 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 108 transitions. [2018-10-14 16:44:18,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-10-14 16:44:18,556 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:44:18,556 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-14 16:44:18,557 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:44:18,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:44:18,557 INFO L82 PathProgramCache]: Analyzing trace with hash -1712651010, now seen corresponding path program 2 times [2018-10-14 16:44:18,558 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:44:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:44:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 2 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:44:18,965 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:44:18,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-14 16:44:18,965 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-14 16:44:18,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-14 16:44:18,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2018-10-14 16:44:18,967 INFO L87 Difference]: Start difference. First operand 108 states and 108 transitions. Second operand 14 states. [2018-10-14 16:44:19,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:44:19,852 INFO L93 Difference]: Finished difference Result 116 states and 116 transitions. [2018-10-14 16:44:19,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-10-14 16:44:19,852 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 107 [2018-10-14 16:44:19,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:44:19,854 INFO L225 Difference]: With dead ends: 116 [2018-10-14 16:44:19,854 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:44:19,856 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=233, Invalid=579, Unknown=0, NotChecked=0, Total=812 [2018-10-14 16:44:19,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:44:19,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:44:19,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:44:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:44:19,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 107 [2018-10-14 16:44:19,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:44:19,857 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:44:19,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-14 16:44:19,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:44:19,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:44:19,863 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:44:19 BoogieIcfgContainer [2018-10-14 16:44:19,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:44:19,864 INFO L168 Benchmark]: Toolchain (without parser) took 6395.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 404.5 MB). Peak memory consumption was 404.5 MB. Max. memory is 7.1 GB. [2018-10-14 16:44:19,866 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:44:19,867 INFO L168 Benchmark]: Boogie Preprocessor took 54.69 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:44:19,867 INFO L168 Benchmark]: RCFGBuilder took 682.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:44:19,869 INFO L168 Benchmark]: TraceAbstraction took 5654.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 372.8 MB). Peak memory consumption was 372.8 MB. Max. memory is 7.1 GB. [2018-10-14 16:44:19,872 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.69 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 682.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5654.39 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 372.8 MB). Peak memory consumption was 372.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 149]: 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, 77 locations, 1 error locations. SAFE Result, 5.5s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 195 SDtfs, 1099 SDslu, 806 SDs, 0 SdLazy, 657 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=2, 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, 3 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 165106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/59 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/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-44-19-883.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-44-19-883.csv Received shutdown request...