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_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:40:25,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:40:25,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:40:25,409 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:40:25,409 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:40:25,410 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:40:25,412 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:40:25,415 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:40:25,417 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:40:25,418 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:40:25,420 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:40:25,420 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:40:25,425 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:40:25,426 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:40:25,428 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:40:25,430 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:40:25,432 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:40:25,434 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:40:25,436 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:40:25,438 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:40:25,439 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:40:25,440 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:40:25,442 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:40:25,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:40:25,442 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:40:25,443 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:40:25,444 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:40:25,445 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:40:25,445 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:40:25,446 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:40:25,446 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:40:25,447 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:40:25,449 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 16:40:25,468 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:40:25,468 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:40:25,469 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:40:25,470 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:40:25,470 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:40:25,470 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:40:25,471 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:40:25,471 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:40:25,471 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:40:25,471 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:40:25,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:40:25,472 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:40:25,472 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:40:25,473 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:40:25,473 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:40:25,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:40:25,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:40:25,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:40:25,563 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:40:25,563 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:40:25,565 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:40:25,565 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/diff-alloca_true-valid-memsafety_true-termination.i_9.bpl' [2018-10-14 16:40:25,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:40:25,640 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:40:25,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:40:25,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:40:25,641 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:40:25,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (1/1) ... [2018-10-14 16:40:25,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (1/1) ... [2018-10-14 16:40:25,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (1/1) ... [2018-10-14 16:40:25,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (1/1) ... [2018-10-14 16:40:25,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (1/1) ... [2018-10-14 16:40:25,690 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (1/1) ... [2018-10-14 16:40:25,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (1/1) ... [2018-10-14 16:40:25,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:40:25,699 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:40:25,699 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:40:25,699 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:40:25,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (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 16:40:25,769 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:40:25,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:40:25,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:40:26,474 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:40:26,475 INFO L202 PluginConnector]: Adding new model diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:40:26 BoogieIcfgContainer [2018-10-14 16:40:26,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:40:26,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:40:26,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:40:26,480 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:40:26,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:40:25" (1/2) ... [2018-10-14 16:40:26,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd2d0df and model type diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:40:26, skipping insertion in model container [2018-10-14 16:40:26,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:40:26" (2/2) ... [2018-10-14 16:40:26,484 INFO L112 eAbstractionObserver]: Analyzing ICFG diff-alloca_true-valid-memsafety_true-termination.i_9.bpl [2018-10-14 16:40:26,494 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:40:26,503 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:40:26,522 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:40:26,551 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:40:26,552 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:40:26,552 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:40:26,553 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:40:26,553 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:40:26,553 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:40:26,553 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:40:26,553 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:40:26,553 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:40:26,574 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2018-10-14 16:40:26,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-14 16:40:26,585 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:40:26,586 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] [2018-10-14 16:40:26,587 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:40:26,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:40:26,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1888889440, now seen corresponding path program 1 times [2018-10-14 16:40:26,659 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:40:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:40:27,818 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-14 16:40:28,581 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 16:40:28,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:40:28,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2018-10-14 16:40:28,591 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-14 16:40:28,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-14 16:40:28,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2018-10-14 16:40:28,613 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 20 states. [2018-10-14 16:40:30,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:40:30,733 INFO L93 Difference]: Finished difference Result 129 states and 133 transitions. [2018-10-14 16:40:30,733 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-14 16:40:30,735 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 66 [2018-10-14 16:40:30,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:40:30,751 INFO L225 Difference]: With dead ends: 129 [2018-10-14 16:40:30,751 INFO L226 Difference]: Without dead ends: 129 [2018-10-14 16:40:30,754 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=337, Invalid=1223, Unknown=0, NotChecked=0, Total=1560 [2018-10-14 16:40:30,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-10-14 16:40:30,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 112. [2018-10-14 16:40:30,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-14 16:40:30,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 114 transitions. [2018-10-14 16:40:30,805 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 114 transitions. Word has length 66 [2018-10-14 16:40:30,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:40:30,806 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 114 transitions. [2018-10-14 16:40:30,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-14 16:40:30,807 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 114 transitions. [2018-10-14 16:40:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-10-14 16:40:30,809 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:40:30,810 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-14 16:40:30,810 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:40:30,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:40:30,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1821624552, now seen corresponding path program 1 times [2018-10-14 16:40:30,812 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:40:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:40:30,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:40:30,889 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:40:30,889 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-14 16:40:30,891 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-14 16:40:30,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-14 16:40:30,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:40:30,892 INFO L87 Difference]: Start difference. First operand 112 states and 114 transitions. Second operand 3 states. [2018-10-14 16:40:30,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:40:30,945 INFO L93 Difference]: Finished difference Result 115 states and 118 transitions. [2018-10-14 16:40:30,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-14 16:40:30,946 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2018-10-14 16:40:30,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:40:30,949 INFO L225 Difference]: With dead ends: 115 [2018-10-14 16:40:30,949 INFO L226 Difference]: Without dead ends: 114 [2018-10-14 16:40:30,950 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-14 16:40:30,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2018-10-14 16:40:30,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2018-10-14 16:40:30,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2018-10-14 16:40:30,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 116 transitions. [2018-10-14 16:40:30,962 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 116 transitions. Word has length 74 [2018-10-14 16:40:30,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:40:30,963 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 116 transitions. [2018-10-14 16:40:30,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-14 16:40:30,964 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 116 transitions. [2018-10-14 16:40:30,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-14 16:40:30,967 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:40:30,967 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-14 16:40:30,967 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:40:30,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:40:30,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1005090958, now seen corresponding path program 1 times [2018-10-14 16:40:30,968 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:40:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:40:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:40:31,898 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:40:31,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-10-14 16:40:31,898 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-14 16:40:31,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-14 16:40:31,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2018-10-14 16:40:31,900 INFO L87 Difference]: Start difference. First operand 114 states and 116 transitions. Second operand 24 states. [2018-10-14 16:40:34,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:40:34,267 INFO L93 Difference]: Finished difference Result 146 states and 149 transitions. [2018-10-14 16:40:34,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-10-14 16:40:34,271 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 95 [2018-10-14 16:40:34,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:40:34,273 INFO L225 Difference]: With dead ends: 146 [2018-10-14 16:40:34,273 INFO L226 Difference]: Without dead ends: 146 [2018-10-14 16:40:34,275 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=409, Invalid=1847, Unknown=0, NotChecked=0, Total=2256 [2018-10-14 16:40:34,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-10-14 16:40:34,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 143. [2018-10-14 16:40:34,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-10-14 16:40:34,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 146 transitions. [2018-10-14 16:40:34,285 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 146 transitions. Word has length 95 [2018-10-14 16:40:34,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:40:34,286 INFO L481 AbstractCegarLoop]: Abstraction has 143 states and 146 transitions. [2018-10-14 16:40:34,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-14 16:40:34,286 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 146 transitions. [2018-10-14 16:40:34,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-14 16:40:34,288 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:40:34,288 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-10-14 16:40:34,289 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:40:34,289 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:40:34,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1833739360, now seen corresponding path program 2 times [2018-10-14 16:40:34,290 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:40:34,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:40:34,813 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-14 16:40:35,194 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-14 16:40:35,194 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:40:35,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-10-14 16:40:35,195 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-10-14 16:40:35,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-10-14 16:40:35,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2018-10-14 16:40:35,196 INFO L87 Difference]: Start difference. First operand 143 states and 146 transitions. Second operand 27 states. [2018-10-14 16:40:37,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:40:37,714 INFO L93 Difference]: Finished difference Result 144 states and 147 transitions. [2018-10-14 16:40:37,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-10-14 16:40:37,715 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 124 [2018-10-14 16:40:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:40:37,717 INFO L225 Difference]: With dead ends: 144 [2018-10-14 16:40:37,717 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:40:37,719 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=555, Invalid=2525, Unknown=0, NotChecked=0, Total=3080 [2018-10-14 16:40:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:40:37,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:40:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:40:37,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:40:37,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 124 [2018-10-14 16:40:37,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:40:37,721 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:40:37,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-10-14 16:40:37,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:40:37,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:40:37,727 INFO L202 PluginConnector]: Adding new model diff-alloca_true-valid-memsafety_true-termination.i_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:40:37 BoogieIcfgContainer [2018-10-14 16:40:37,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:40:37,728 INFO L168 Benchmark]: Toolchain (without parser) took 12089.90 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 943.2 MB in the end (delta: 500.9 MB). Peak memory consumption was 541.8 MB. Max. memory is 7.1 GB. [2018-10-14 16:40:37,730 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:40:37,731 INFO L168 Benchmark]: Boogie Preprocessor took 58.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:40:37,732 INFO L168 Benchmark]: RCFGBuilder took 776.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:40:37,733 INFO L168 Benchmark]: TraceAbstraction took 11251.67 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 943.2 MB in the end (delta: 469.2 MB). Peak memory consumption was 510.1 MB. Max. memory is 7.1 GB. [2018-10-14 16:40:37,737 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 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 58.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 776.48 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11251.67 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 40.9 MB). Free memory was 1.4 GB in the beginning and 943.2 MB in the end (delta: 469.2 MB). Peak memory consumption was 510.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 177]: 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, 90 locations, 1 error locations. SAFE Result, 11.1s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 7.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 312 SDtfs, 2857 SDslu, 2216 SDs, 0 SdLazy, 1972 SolverSat, 75 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 157 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1087 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred 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, 20 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 355 ConstructedInterpolants, 0 QuantifiedInterpolants, 341435 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 7/62 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_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-40-37-749.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/diff-alloca_true-valid-memsafety_true-termination.i_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-40-37-749.csv Received shutdown request...