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/diff-alloca_true-valid-memsafety_true-termination.i_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-502d2f4 [2018-10-12 21:00:02,565 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-12 21:00:02,567 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-12 21:00:02,578 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-12 21:00:02,579 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-12 21:00:02,580 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-12 21:00:02,581 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-12 21:00:02,583 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-12 21:00:02,585 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-12 21:00:02,586 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-12 21:00:02,587 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-12 21:00:02,614 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/heapseparator/heapsep-2018-09-18.epf [2018-10-12 21:00:02,623 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-12 21:00:02,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-12 21:00:02,625 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-12 21:00:02,625 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-12 21:00:02,625 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-12 21:00:02,625 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-12 21:00:02,626 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-12 21:00:02,626 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-12 21:00:02,627 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-12 21:00:02,627 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-12 21:00:02,627 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-12 21:00:02,627 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-12 21:00:02,627 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-12 21:00:02,628 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-12 21:00:02,629 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-12 21:00:02,679 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-12 21:00:02,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-12 21:00:02,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-12 21:00:02,706 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-12 21:00:02,707 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-12 21:00:02,708 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-12 21:00:02,708 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_14.bpl' [2018-10-12 21:00:02,781 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-12 21:00:02,782 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-12 21:00:02,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-12 21:00:02,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-12 21:00:02,783 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-12 21:00:02,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (1/1) ... [2018-10-12 21:00:02,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (1/1) ... [2018-10-12 21:00:02,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (1/1) ... [2018-10-12 21:00:02,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (1/1) ... [2018-10-12 21:00:02,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (1/1) ... [2018-10-12 21:00:02,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (1/1) ... [2018-10-12 21:00:02,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (1/1) ... [2018-10-12 21:00:02,844 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-12 21:00:02,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-12 21:00:02,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-12 21:00:02,849 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-12 21:00:02,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (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 [2018-10-12 21:00:02,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-12 21:00:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-12 21:00:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-12 21:00:03,642 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-12 21:00:03,643 INFO L202 PluginConnector]: Adding new model diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:00:03 BoogieIcfgContainer [2018-10-12 21:00:03,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-12 21:00:03,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-12 21:00:03,644 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-12 21:00:03,648 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-12 21:00:03,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.10 09:00:02" (1/2) ... [2018-10-12 21:00:03,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b96668a and model type diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 09:00:03, skipping insertion in model container [2018-10-12 21:00:03,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 09:00:03" (2/2) ... [2018-10-12 21:00:03,651 INFO L112 eAbstractionObserver]: Analyzing ICFG diff-alloca_true-valid-memsafety_true-termination.i_14.bpl [2018-10-12 21:00:03,661 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-12 21:00:03,669 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-12 21:00:03,690 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-12 21:00:03,719 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-12 21:00:03,720 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-12 21:00:03,720 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-12 21:00:03,720 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-12 21:00:03,720 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-12 21:00:03,720 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-12 21:00:03,721 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-12 21:00:03,721 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-12 21:00:03,721 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-12 21:00:03,744 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states. [2018-10-12 21:00:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2018-10-12 21:00:03,774 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:00:03,775 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:00:03,776 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:00:03,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:00:03,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1229679545, now seen corresponding path program 1 times [2018-10-12 21:00:03,841 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:00:03,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:00:04,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-12 21:00:04,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:00:04,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-10-12 21:00:04,319 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-12 21:00:04,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-12 21:00:04,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-10-12 21:00:04,339 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 8 states. [2018-10-12 21:00:04,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:04,649 INFO L93 Difference]: Finished difference Result 132 states and 133 transitions. [2018-10-12 21:00:04,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-12 21:00:04,651 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 76 [2018-10-12 21:00:04,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:04,666 INFO L225 Difference]: With dead ends: 132 [2018-10-12 21:00:04,666 INFO L226 Difference]: Without dead ends: 132 [2018-10-12 21:00:04,668 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-10-12 21:00:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-10-12 21:00:04,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 111. [2018-10-12 21:00:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2018-10-12 21:00:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 112 transitions. [2018-10-12 21:00:04,715 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 112 transitions. Word has length 76 [2018-10-12 21:00:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:04,715 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 112 transitions. [2018-10-12 21:00:04,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-12 21:00:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 112 transitions. [2018-10-12 21:00:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-10-12 21:00:04,720 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:00:04,720 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:00:04,721 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:00:04,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:00:04,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1878659430, now seen corresponding path program 1 times [2018-10-12 21:00:04,723 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:00:04,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:00:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-12 21:00:05,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-12 21:00:05,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-12 21:00:05,878 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-12 21:00:05,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-12 21:00:05,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2018-10-12 21:00:05,879 INFO L87 Difference]: Start difference. First operand 111 states and 112 transitions. Second operand 12 states. [2018-10-12 21:00:06,936 WARN L178 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2018-10-12 21:00:07,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:07,315 INFO L93 Difference]: Finished difference Result 158 states and 160 transitions. [2018-10-12 21:00:07,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-12 21:00:07,316 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 99 [2018-10-12 21:00:07,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:07,319 INFO L225 Difference]: With dead ends: 158 [2018-10-12 21:00:07,320 INFO L226 Difference]: Without dead ends: 158 [2018-10-12 21:00:07,321 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2018-10-12 21:00:07,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-10-12 21:00:07,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 151. [2018-10-12 21:00:07,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-10-12 21:00:07,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 153 transitions. [2018-10-12 21:00:07,336 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 153 transitions. Word has length 99 [2018-10-12 21:00:07,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:07,337 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 153 transitions. [2018-10-12 21:00:07,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-12 21:00:07,338 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 153 transitions. [2018-10-12 21:00:07,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-10-12 21:00:07,340 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:00:07,341 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:00:07,341 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:00:07,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:00:07,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1748554681, now seen corresponding path program 1 times [2018-10-12 21:00:07,342 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:00:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:00:08,230 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-12 21:00:08,230 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:00:08,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-10-12 21:00:08,231 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-12 21:00:08,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-12 21:00:08,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2018-10-12 21:00:08,232 INFO L87 Difference]: Start difference. First operand 151 states and 153 transitions. Second operand 19 states. [2018-10-12 21:00:10,253 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-10-12 21:00:11,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:11,055 INFO L93 Difference]: Finished difference Result 251 states and 255 transitions. [2018-10-12 21:00:11,056 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-10-12 21:00:11,056 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 150 [2018-10-12 21:00:11,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:11,062 INFO L225 Difference]: With dead ends: 251 [2018-10-12 21:00:11,063 INFO L226 Difference]: Without dead ends: 251 [2018-10-12 21:00:11,065 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=328, Invalid=1004, Unknown=0, NotChecked=0, Total=1332 [2018-10-12 21:00:11,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-10-12 21:00:11,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 202. [2018-10-12 21:00:11,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2018-10-12 21:00:11,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 205 transitions. [2018-10-12 21:00:11,091 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 205 transitions. Word has length 150 [2018-10-12 21:00:11,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:11,097 INFO L481 AbstractCegarLoop]: Abstraction has 202 states and 205 transitions. [2018-10-12 21:00:11,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-12 21:00:11,097 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 205 transitions. [2018-10-12 21:00:11,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-10-12 21:00:11,106 INFO L367 BasicCegarLoop]: Found error trace [2018-10-12 21:00:11,106 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-12 21:00:11,107 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-12 21:00:11,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-12 21:00:11,107 INFO L82 PathProgramCache]: Analyzing trace with hash 714023290, now seen corresponding path program 2 times [2018-10-12 21:00:11,108 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-12 21:00:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-12 21:00:12,152 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 2 proven. 135 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-12 21:00:12,152 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-12 21:00:12,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-10-12 21:00:12,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-12 21:00:12,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-12 21:00:12,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2018-10-12 21:00:12,154 INFO L87 Difference]: Start difference. First operand 202 states and 205 transitions. Second operand 23 states. [2018-10-12 21:00:13,442 WARN L178 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2018-10-12 21:00:15,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-12 21:00:15,514 INFO L93 Difference]: Finished difference Result 249 states and 253 transitions. [2018-10-12 21:00:15,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-12 21:00:15,515 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 201 [2018-10-12 21:00:15,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-12 21:00:15,517 INFO L225 Difference]: With dead ends: 249 [2018-10-12 21:00:15,517 INFO L226 Difference]: Without dead ends: 0 [2018-10-12 21:00:15,519 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=597, Invalid=2055, Unknown=0, NotChecked=0, Total=2652 [2018-10-12 21:00:15,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-12 21:00:15,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-12 21:00:15,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-12 21:00:15,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-12 21:00:15,520 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2018-10-12 21:00:15,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-12 21:00:15,521 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-12 21:00:15,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-10-12 21:00:15,521 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-12 21:00:15,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-12 21:00:15,526 INFO L202 PluginConnector]: Adding new model diff-alloca_true-valid-memsafety_true-termination.i_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 09:00:15 BoogieIcfgContainer [2018-10-12 21:00:15,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-12 21:00:15,528 INFO L168 Benchmark]: Toolchain (without parser) took 12746.41 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 119.5 MB). Free memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: -120.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:00:15,529 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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. [2018-10-12 21:00:15,530 INFO L168 Benchmark]: Boogie Preprocessor took 64.91 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. [2018-10-12 21:00:15,530 INFO L168 Benchmark]: RCFGBuilder took 794.46 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. [2018-10-12 21:00:15,531 INFO L168 Benchmark]: TraceAbstraction took 11882.61 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 119.5 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -151.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-10-12 21:00:15,535 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 0.19 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 64.91 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 794.46 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 11882.61 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 119.5 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -151.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 204]: 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, 112 locations, 1 error locations. SAFE Result, 11.8s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 7.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 549 SDtfs, 4278 SDslu, 3393 SDs, 0 SdLazy, 1693 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 445 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred 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, 77 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 526 NumberOfCodeBlocks, 526 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 932105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/185 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/diff-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-12_21-00-15-547.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_14.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-12_21-00-15-547.csv Received shutdown request...