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/strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:54:24,337 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:54:24,339 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:54:24,350 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:54:24,351 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:54:24,352 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:54:24,353 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:54:24,355 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:54:24,356 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:54:24,357 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:54:24,358 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:54:24,358 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:54:24,359 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:54:24,360 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:54:24,361 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:54:24,362 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:54:24,363 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:54:24,365 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:54:24,367 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:54:24,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:54:24,369 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:54:24,371 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:54:24,377 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:54:24,377 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:54:24,377 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:54:24,379 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:54:24,379 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:54:24,380 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:54:24,381 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:54:24,385 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:54:24,385 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:54:24,387 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:54:24,391 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 16:54:24,408 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:54:24,408 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:54:24,412 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:54:24,412 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:54:24,412 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:54:24,413 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:54:24,413 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:54:24,414 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:54:24,414 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:54:24,414 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:54:24,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:54:24,414 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:54:24,415 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:54:24,415 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:54:24,416 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:54:24,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:54:24,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:54:24,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:54:24,489 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:54:24,490 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:54:24,490 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:54:24,491 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-14 16:54:24,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:54:24,552 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:54:24,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:54:24,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:54:24,553 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:54:24,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (1/1) ... [2018-10-14 16:54:24,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (1/1) ... [2018-10-14 16:54:24,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (1/1) ... [2018-10-14 16:54:24,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (1/1) ... [2018-10-14 16:54:24,601 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (1/1) ... [2018-10-14 16:54:24,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (1/1) ... [2018-10-14 16:54:24,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (1/1) ... [2018-10-14 16:54:24,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:54:24,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:54:24,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:54:24,608 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:54:24,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (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 16:54:24,685 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:54:24,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:54:24,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:54:25,346 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:54:25,347 INFO L202 PluginConnector]: Adding new model strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:54:25 BoogieIcfgContainer [2018-10-14 16:54:25,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:54:25,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:54:25,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:54:25,352 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:54:25,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:54:24" (1/2) ... [2018-10-14 16:54:25,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@333535d8 and model type strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:54:25, skipping insertion in model container [2018-10-14 16:54:25,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:54:25" (2/2) ... [2018-10-14 16:54:25,355 INFO L112 eAbstractionObserver]: Analyzing ICFG strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:54:25,365 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:54:25,373 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:54:25,391 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:54:25,419 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:54:25,420 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:54:25,420 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:54:25,420 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:54:25,421 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:54:25,421 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:54:25,421 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:54:25,421 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:54:25,421 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:54:25,439 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-10-14 16:54:25,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-10-14 16:54:25,449 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:25,450 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] [2018-10-14 16:54:25,451 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:25,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:25,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1936928653, now seen corresponding path program 1 times [2018-10-14 16:54:25,505 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:26,317 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 16:54:26,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:54:26,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 16:54:26,325 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:54:26,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:54:26,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:54:26,345 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 12 states. [2018-10-14 16:54:27,048 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-10-14 16:54:27,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:27,579 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2018-10-14 16:54:27,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-14 16:54:27,581 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 42 [2018-10-14 16:54:27,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:27,594 INFO L225 Difference]: With dead ends: 87 [2018-10-14 16:54:27,594 INFO L226 Difference]: Without dead ends: 87 [2018-10-14 16:54:27,597 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=149, Invalid=313, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:54:27,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-10-14 16:54:27,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 66. [2018-10-14 16:54:27,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-10-14 16:54:27,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2018-10-14 16:54:27,642 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 42 [2018-10-14 16:54:27,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:27,643 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2018-10-14 16:54:27,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:54:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2018-10-14 16:54:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-10-14 16:54:27,646 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:27,646 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:54:27,646 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:27,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:27,647 INFO L82 PathProgramCache]: Analyzing trace with hash 113803420, now seen corresponding path program 1 times [2018-10-14 16:54:27,648 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:28,156 WARN L179 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2018-10-14 16:54:28,663 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:54:28,664 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:54:28,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-14 16:54:28,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-14 16:54:28,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-14 16:54:28,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:54:28,668 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand 20 states. [2018-10-14 16:54:30,181 WARN L179 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2018-10-14 16:54:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:31,442 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2018-10-14 16:54:31,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-14 16:54:31,443 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 65 [2018-10-14 16:54:31,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:31,446 INFO L225 Difference]: With dead ends: 110 [2018-10-14 16:54:31,446 INFO L226 Difference]: Without dead ends: 110 [2018-10-14 16:54:31,448 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=384, Invalid=1022, Unknown=0, NotChecked=0, Total=1406 [2018-10-14 16:54:31,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2018-10-14 16:54:31,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 89. [2018-10-14 16:54:31,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-10-14 16:54:31,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2018-10-14 16:54:31,459 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 65 [2018-10-14 16:54:31,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:31,460 INFO L481 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2018-10-14 16:54:31,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-14 16:54:31,460 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2018-10-14 16:54:31,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-10-14 16:54:31,463 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:31,464 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-10-14 16:54:31,464 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:31,464 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:31,465 INFO L82 PathProgramCache]: Analyzing trace with hash -971018579, now seen corresponding path program 2 times [2018-10-14 16:54:31,466 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:31,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:32,133 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 18 [2018-10-14 16:54:32,754 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:54:32,754 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:54:32,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-10-14 16:54:32,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-10-14 16:54:32,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-10-14 16:54:32,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2018-10-14 16:54:32,756 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand 22 states. [2018-10-14 16:54:33,891 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2018-10-14 16:54:34,429 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2018-10-14 16:54:34,702 WARN L179 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2018-10-14 16:54:34,909 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2018-10-14 16:54:35,161 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2018-10-14 16:54:35,482 WARN L179 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2018-10-14 16:54:35,854 WARN L179 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2018-10-14 16:54:36,204 WARN L179 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2018-10-14 16:54:36,518 WARN L179 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2018-10-14 16:54:36,897 WARN L179 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2018-10-14 16:54:37,073 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2018-10-14 16:54:37,408 WARN L179 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-10-14 16:54:37,574 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2018-10-14 16:54:37,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:37,913 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2018-10-14 16:54:37,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-14 16:54:37,915 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 88 [2018-10-14 16:54:37,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:37,918 INFO L225 Difference]: With dead ends: 133 [2018-10-14 16:54:37,921 INFO L226 Difference]: Without dead ends: 133 [2018-10-14 16:54:37,923 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=440, Invalid=1366, Unknown=0, NotChecked=0, Total=1806 [2018-10-14 16:54:37,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2018-10-14 16:54:37,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 112. [2018-10-14 16:54:37,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-14 16:54:37,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 112 transitions. [2018-10-14 16:54:37,949 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 112 transitions. Word has length 88 [2018-10-14 16:54:37,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:37,949 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 112 transitions. [2018-10-14 16:54:37,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-10-14 16:54:37,950 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 112 transitions. [2018-10-14 16:54:37,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-14 16:54:37,953 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:54:37,954 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:54:37,954 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:54:37,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:54:37,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1425489276, now seen corresponding path program 3 times [2018-10-14 16:54:37,957 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:54:38,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:54:38,800 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 2 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:54:38,801 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:54:38,801 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2018-10-14 16:54:38,802 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-10-14 16:54:38,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-10-14 16:54:38,802 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=544, Unknown=0, NotChecked=0, Total=600 [2018-10-14 16:54:38,803 INFO L87 Difference]: Start difference. First operand 112 states and 112 transitions. Second operand 25 states. [2018-10-14 16:54:40,247 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-10-14 16:54:41,187 WARN L179 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2018-10-14 16:54:41,943 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2018-10-14 16:54:42,202 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2018-10-14 16:54:42,414 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2018-10-14 16:54:42,640 WARN L179 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2018-10-14 16:54:42,910 WARN L179 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2018-10-14 16:54:43,240 WARN L179 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2018-10-14 16:54:43,502 WARN L179 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2018-10-14 16:54:43,706 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2018-10-14 16:54:43,992 WARN L179 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2018-10-14 16:54:44,224 WARN L179 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2018-10-14 16:54:44,418 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2018-10-14 16:54:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:54:44,428 INFO L93 Difference]: Finished difference Result 131 states and 131 transitions. [2018-10-14 16:54:44,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-14 16:54:44,429 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 111 [2018-10-14 16:54:44,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:54:44,430 INFO L225 Difference]: With dead ends: 131 [2018-10-14 16:54:44,430 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:54:44,432 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=775, Invalid=2195, Unknown=0, NotChecked=0, Total=2970 [2018-10-14 16:54:44,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:54:44,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:54:44,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:54:44,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:54:44,433 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2018-10-14 16:54:44,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:54:44,433 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:54:44,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-10-14 16:54:44,434 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:54:44,434 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:54:44,439 INFO L202 PluginConnector]: Adding new model strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:54:44 BoogieIcfgContainer [2018-10-14 16:54:44,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:54:44,440 INFO L168 Benchmark]: Toolchain (without parser) took 19888.94 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 238.6 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -80.3 MB). Peak memory consumption was 158.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:54:44,441 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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 16:54:44,442 INFO L168 Benchmark]: Boogie Preprocessor took 54.53 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 16:54:44,442 INFO L168 Benchmark]: RCFGBuilder took 739.38 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 16:54:44,443 INFO L168 Benchmark]: TraceAbstraction took 19090.94 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 238.6 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -112.0 MB). Peak memory consumption was 126.6 MB. Max. memory is 7.1 GB. [2018-10-14 16:54:44,447 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 54.53 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 739.38 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 19090.94 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 238.6 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -112.0 MB). Peak memory consumption was 126.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 130]: 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, 65 locations, 1 error locations. SAFE Result, 19.0s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 14.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 212 SDtfs, 3118 SDslu, 1736 SDs, 0 SdLazy, 1932 SolverSat, 104 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 159 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 150 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=112occurred in iteration=3, 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, 4 MinimizatonAttempts, 63 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 302 ConstructedInterpolants, 0 QuantifiedInterpolants, 365376 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 2/110 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/strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-54-44-458.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/strreplace-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-54-44-458.csv Received shutdown request...