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_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:36:36,481 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:36:36,483 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:36:36,498 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:36:36,499 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:36:36,500 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:36:36,501 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:36:36,503 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:36:36,505 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:36:36,505 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:36:36,506 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 15:36:36,507 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 15:36:36,508 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 15:36:36,509 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 15:36:36,510 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 15:36:36,510 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 15:36:36,511 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 15:36:36,518 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 15:36:36,520 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 15:36:36,524 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 15:36:36,525 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 15:36:36,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 15:36:36,536 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-10 15:36:36,550 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-10 15:36:36,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:36:36,564 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:36:36,565 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:36:36,565 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:36:36,565 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:36:36,565 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:36:36,566 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:36:36,566 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:36:36,566 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:36:36,567 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:36:36,567 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:36:36,567 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:36:36,567 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:36:36,568 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:36:36,568 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:36:36,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:36:36,636 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:36:36,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:36:36,642 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:36:36,643 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:36:36,646 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_5.bpl [2018-10-10 15:36:36,646 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/lis-alloca_true-valid-memsafety_true-termination.i_5.bpl' [2018-10-10 15:36:36,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:36:36,737 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:36:36,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:36:36,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:36:36,737 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:36:36,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/1) ... [2018-10-10 15:36:36,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/1) ... [2018-10-10 15:36:36,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/1) ... [2018-10-10 15:36:36,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/1) ... [2018-10-10 15:36:36,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/1) ... [2018-10-10 15:36:36,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/1) ... [2018-10-10 15:36:36,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/1) ... [2018-10-10 15:36:36,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:36:36,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:36:36,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:36:36,789 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:36:36,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-10 15:36:36,871 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:36:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:36:36,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:36:37,530 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:36:37,531 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:37 BoogieIcfgContainer [2018-10-10 15:36:37,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:36:37,532 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:36:37,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:36:37,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:36:37,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:36:36" (1/2) ... [2018-10-10 15:36:37,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3415cd and model type lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:36:37, skipping insertion in model container [2018-10-10 15:36:37,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:36:37" (2/2) ... [2018-10-10 15:36:37,540 INFO L112 eAbstractionObserver]: Analyzing ICFG lis-alloca_true-valid-memsafety_true-termination.i_5.bpl [2018-10-10 15:36:37,551 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:36:37,560 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:36:37,578 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:36:37,608 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:36:37,609 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:36:37,609 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:36:37,609 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:36:37,610 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:36:37,610 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:36:37,610 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:36:37,610 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:36:37,610 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:36:37,630 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-10-10 15:36:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-10 15:36:37,640 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:37,642 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] [2018-10-10 15:36:37,643 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:37,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:37,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1544429586, now seen corresponding path program 1 times [2018-10-10 15:36:37,714 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:38,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:38,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:36:38,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-10-10 15:36:38,764 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-10 15:36:38,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-10 15:36:38,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2018-10-10 15:36:38,785 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 16 states. [2018-10-10 15:36:41,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:41,178 INFO L93 Difference]: Finished difference Result 94 states and 94 transitions. [2018-10-10 15:36:41,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-10 15:36:41,180 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 59 [2018-10-10 15:36:41,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:41,206 INFO L225 Difference]: With dead ends: 94 [2018-10-10 15:36:41,209 INFO L226 Difference]: Without dead ends: 94 [2018-10-10 15:36:41,213 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=364, Invalid=968, Unknown=0, NotChecked=0, Total=1332 [2018-10-10 15:36:41,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2018-10-10 15:36:41,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 80. [2018-10-10 15:36:41,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-10-10 15:36:41,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 80 transitions. [2018-10-10 15:36:41,266 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 80 transitions. Word has length 59 [2018-10-10 15:36:41,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:41,268 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 80 transitions. [2018-10-10 15:36:41,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-10 15:36:41,268 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 80 transitions. [2018-10-10 15:36:41,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-10-10 15:36:41,272 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:41,274 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:41,275 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:41,275 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:41,275 INFO L82 PathProgramCache]: Analyzing trace with hash -742676872, now seen corresponding path program 1 times [2018-10-10 15:36:41,277 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:41,845 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:41,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-10-10 15:36:41,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-10 15:36:41,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-10 15:36:41,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=232, Unknown=0, NotChecked=0, Total=272 [2018-10-10 15:36:41,849 INFO L87 Difference]: Start difference. First operand 80 states and 80 transitions. Second operand 17 states. [2018-10-10 15:36:43,071 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2018-10-10 15:36:43,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:43,445 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2018-10-10 15:36:43,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-10 15:36:43,446 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 79 [2018-10-10 15:36:43,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:43,449 INFO L225 Difference]: With dead ends: 114 [2018-10-10 15:36:43,449 INFO L226 Difference]: Without dead ends: 114 [2018-10-10 15:36:43,451 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=322, Invalid=1010, Unknown=0, NotChecked=0, Total=1332 [2018-10-10 15:36:43,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-10-10 15:36:43,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 100. [2018-10-10 15:36:43,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-10-10 15:36:43,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 100 transitions. [2018-10-10 15:36:43,463 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 100 transitions. Word has length 79 [2018-10-10 15:36:43,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:43,464 INFO L481 AbstractCegarLoop]: Abstraction has 100 states and 100 transitions. [2018-10-10 15:36:43,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-10-10 15:36:43,464 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 100 transitions. [2018-10-10 15:36:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-10 15:36:43,467 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:36:43,467 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 15:36:43,467 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:36:43,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:36:43,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1566229506, now seen corresponding path program 2 times [2018-10-10 15:36:43,469 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:36:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:36:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:36:44,279 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:36:44,279 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2018-10-10 15:36:44,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-10 15:36:44,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-10 15:36:44,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2018-10-10 15:36:44,280 INFO L87 Difference]: Start difference. First operand 100 states and 100 transitions. Second operand 20 states. [2018-10-10 15:36:44,755 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-10-10 15:36:46,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:36:46,578 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2018-10-10 15:36:46,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-10-10 15:36:46,579 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 99 [2018-10-10 15:36:46,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:36:46,580 INFO L225 Difference]: With dead ends: 112 [2018-10-10 15:36:46,581 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:36:46,582 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=420, Invalid=1472, Unknown=0, NotChecked=0, Total=1892 [2018-10-10 15:36:46,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:36:46,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:36:46,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:36:46,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:36:46,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2018-10-10 15:36:46,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:36:46,584 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:36:46,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-10 15:36:46,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:36:46,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:36:46,590 INFO L202 PluginConnector]: Adding new model lis-alloca_true-valid-memsafety_true-termination.i_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:36:46 BoogieIcfgContainer [2018-10-10 15:36:46,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:36:46,591 INFO L168 Benchmark]: Toolchain (without parser) took 9855.18 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.6 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 214.3 MB). Peak memory consumption was 237.9 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:46,593 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.27 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:36:46,593 INFO L168 Benchmark]: Boogie Preprocessor took 51.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 15:36:46,594 INFO L168 Benchmark]: RCFGBuilder took 742.74 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. [2018-10-10 15:36:46,595 INFO L168 Benchmark]: TraceAbstraction took 9057.68 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 182.6 MB). Peak memory consumption was 206.2 MB. Max. memory is 7.1 GB. [2018-10-10 15:36:46,599 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 0.27 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 51.14 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 742.74 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 9057.68 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 23.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 182.6 MB). Peak memory consumption was 206.2 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, 8.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 6.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 156 SDtfs, 1575 SDslu, 872 SDs, 0 SdLazy, 1159 SolverSat, 130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 615 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred 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, 28 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 234 ConstructedInterpolants, 0 QuantifiedInterpolants, 165304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/35 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_5.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-36-46-611.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/lis-alloca_true-valid-memsafety_true-termination.i_5.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-36-46-611.csv Received shutdown request...