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/selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:51:05,218 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:51:05,220 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:51:05,232 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:51:05,232 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:51:05,233 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:51:05,234 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:51:05,236 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:51:05,240 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:51:05,245 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:51:05,246 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:51:05,246 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:51:05,247 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:51:05,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:51:05,253 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:51:05,254 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:51:05,255 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:51:05,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:51:05,260 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:51:05,261 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:51:05,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:51:05,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:51:05,267 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-14 16:51:05,287 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 16:51:05,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:51:05,301 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:51:05,303 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:51:05,303 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:51:05,303 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:51:05,303 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:51:05,304 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:51:05,304 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:51:05,304 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:51:05,304 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:51:05,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:51:05,305 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:51:05,305 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:51:05,306 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:51:05,306 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:51:05,354 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:51:05,369 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:51:05,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:51:05,377 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:51:05,378 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:51:05,379 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-14 16:51:05,379 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl' [2018-10-14 16:51:05,472 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:51:05,475 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:51:05,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:51:05,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:51:05,476 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:51:05,506 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (1/1) ... [2018-10-14 16:51:05,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (1/1) ... [2018-10-14 16:51:05,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (1/1) ... [2018-10-14 16:51:05,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (1/1) ... [2018-10-14 16:51:05,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (1/1) ... [2018-10-14 16:51:05,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (1/1) ... [2018-10-14 16:51:05,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (1/1) ... [2018-10-14 16:51:05,557 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:51:05,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:51:05,558 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:51:05,558 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:51:05,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (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 16:51:05,640 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:51:05,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:51:05,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:51:06,199 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:51:06,200 INFO L202 PluginConnector]: Adding new model selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:51:06 BoogieIcfgContainer [2018-10-14 16:51:06,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:51:06,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:51:06,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:51:06,205 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:51:06,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:51:05" (1/2) ... [2018-10-14 16:51:06,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46a74323 and model type selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:51:06, skipping insertion in model container [2018-10-14 16:51:06,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:51:06" (2/2) ... [2018-10-14 16:51:06,208 INFO L112 eAbstractionObserver]: Analyzing ICFG selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-14 16:51:06,219 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:51:06,230 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:51:06,248 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:51:06,282 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:51:06,283 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:51:06,283 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:51:06,283 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:51:06,283 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:51:06,283 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:51:06,283 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:51:06,284 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:51:06,284 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:51:06,307 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states. [2018-10-14 16:51:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-14 16:51:06,331 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:51:06,334 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] [2018-10-14 16:51:06,336 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:51:06,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:51:06,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1660076691, now seen corresponding path program 1 times [2018-10-14 16:51:06,395 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:51:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:51:06,568 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 16:51:06,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:51:06,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-14 16:51:06,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-14 16:51:06,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-14 16:51:06,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-14 16:51:06,591 INFO L87 Difference]: Start difference. First operand 73 states. Second operand 4 states. [2018-10-14 16:51:06,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:51:06,786 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2018-10-14 16:51:06,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-14 16:51:06,788 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2018-10-14 16:51:06,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:51:06,801 INFO L225 Difference]: With dead ends: 74 [2018-10-14 16:51:06,801 INFO L226 Difference]: Without dead ends: 74 [2018-10-14 16:51:06,803 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-14 16:51:06,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-10-14 16:51:06,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-10-14 16:51:06,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-10-14 16:51:06,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2018-10-14 16:51:06,849 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 47 [2018-10-14 16:51:06,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:51:06,850 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2018-10-14 16:51:06,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-14 16:51:06,850 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2018-10-14 16:51:06,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-10-14 16:51:06,853 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:51:06,853 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] [2018-10-14 16:51:06,853 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:51:06,854 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:51:06,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1790080112, now seen corresponding path program 1 times [2018-10-14 16:51:06,855 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:51:06,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:51:07,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:51:07,941 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:51:07,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2018-10-14 16:51:07,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-14 16:51:07,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-14 16:51:07,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2018-10-14 16:51:07,945 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 16 states. [2018-10-14 16:51:08,948 WARN L179 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2018-10-14 16:51:09,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:51:09,511 INFO L93 Difference]: Finished difference Result 122 states and 125 transitions. [2018-10-14 16:51:09,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-14 16:51:09,513 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 70 [2018-10-14 16:51:09,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:51:09,515 INFO L225 Difference]: With dead ends: 122 [2018-10-14 16:51:09,515 INFO L226 Difference]: Without dead ends: 109 [2018-10-14 16:51:09,517 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2018-10-14 16:51:09,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-10-14 16:51:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 96. [2018-10-14 16:51:09,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-10-14 16:51:09,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 98 transitions. [2018-10-14 16:51:09,529 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 98 transitions. Word has length 70 [2018-10-14 16:51:09,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:51:09,530 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 98 transitions. [2018-10-14 16:51:09,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-14 16:51:09,530 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 98 transitions. [2018-10-14 16:51:09,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-14 16:51:09,533 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:51:09,533 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] [2018-10-14 16:51:09,533 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:51:09,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:51:09,534 INFO L82 PathProgramCache]: Analyzing trace with hash 107441622, now seen corresponding path program 1 times [2018-10-14 16:51:09,535 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:51:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:51:09,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:51:09,829 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:51:09,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-14 16:51:09,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-14 16:51:09,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-14 16:51:09,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:51:09,831 INFO L87 Difference]: Start difference. First operand 96 states and 98 transitions. Second operand 10 states. [2018-10-14 16:51:10,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:51:10,705 INFO L93 Difference]: Finished difference Result 97 states and 99 transitions. [2018-10-14 16:51:10,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-14 16:51:10,706 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2018-10-14 16:51:10,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:51:10,707 INFO L225 Difference]: With dead ends: 97 [2018-10-14 16:51:10,707 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:51:10,708 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2018-10-14 16:51:10,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:51:10,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:51:10,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:51:10,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:51:10,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2018-10-14 16:51:10,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:51:10,710 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:51:10,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-14 16:51:10,710 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:51:10,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:51:10,716 INFO L202 PluginConnector]: Adding new model selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:51:10 BoogieIcfgContainer [2018-10-14 16:51:10,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:51:10,717 INFO L168 Benchmark]: Toolchain (without parser) took 5243.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 264.4 MB). Peak memory consumption was 264.4 MB. Max. memory is 7.1 GB. [2018-10-14 16:51:10,719 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:51:10,719 INFO L168 Benchmark]: Boogie Preprocessor took 81.70 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:51:10,720 INFO L168 Benchmark]: RCFGBuilder took 642.57 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:51:10,721 INFO L168 Benchmark]: TraceAbstraction took 4514.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 7.1 GB. [2018-10-14 16:51:10,725 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 0.22 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 81.70 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 642.57 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4514.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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, 75 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 167 SDtfs, 913 SDslu, 489 SDs, 0 SdLazy, 421 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=96occurred 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, 13 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 185 ConstructedInterpolants, 0 QuantifiedInterpolants, 97383 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 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/selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-51-10-737.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/selectionsort-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-51-10-737.csv Received shutdown request...