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/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b8f97f7-m [2018-10-10 15:19:22,455 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 15:19:22,457 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 15:19:22,471 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 15:19:22,472 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 15:19:22,473 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 15:19:22,474 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 15:19:22,476 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 15:19:22,477 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 15:19:22,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 15:19:22,479 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-10-10 15:19:22,504 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 15:19:22,521 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 15:19:22,522 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 15:19:22,523 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-10 15:19:22,524 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-10 15:19:22,524 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-10 15:19:22,524 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-10 15:19:22,525 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 15:19:22,525 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-10 15:19:22,525 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 15:19:22,526 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-10 15:19:22,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-10 15:19:22,526 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-10 15:19:22,526 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-10 15:19:22,528 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-10 15:19:22,528 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-10 15:19:22,594 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 15:19:22,610 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 15:19:22,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 15:19:22,615 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-10 15:19:22,615 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-10 15:19:22,616 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl [2018-10-10 15:19:22,616 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl' [2018-10-10 15:19:22,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 15:19:22,691 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-10 15:19:22,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 15:19:22,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 15:19:22,693 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 15:19:22,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (1/1) ... [2018-10-10 15:19:22,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (1/1) ... [2018-10-10 15:19:22,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (1/1) ... [2018-10-10 15:19:22,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (1/1) ... [2018-10-10 15:19:22,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (1/1) ... [2018-10-10 15:19:22,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (1/1) ... [2018-10-10 15:19:22,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (1/1) ... [2018-10-10 15:19:22,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 15:19:22,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 15:19:22,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 15:19:22,750 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 15:19:22,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (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 15:19:22,824 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-10 15:19:22,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 15:19:22,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 15:19:23,285 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 15:19:23,286 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:19:23 BoogieIcfgContainer [2018-10-10 15:19:23,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 15:19:23,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 15:19:23,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 15:19:23,290 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 15:19:23,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.10 03:19:22" (1/2) ... [2018-10-10 15:19:23,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@521bb851 and model type ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 03:19:23, skipping insertion in model container [2018-10-10 15:19:23,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 03:19:23" (2/2) ... [2018-10-10 15:19:23,294 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_true-valid-memsafety.c_9.bpl [2018-10-10 15:19:23,308 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-10 15:19:23,319 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-10 15:19:23,338 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-10 15:19:23,372 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 15:19:23,373 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 15:19:23,373 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 15:19:23,373 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-10 15:19:23,373 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 15:19:23,373 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 15:19:23,373 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 15:19:23,374 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 15:19:23,376 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 15:19:23,397 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-10-10 15:19:23,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-10-10 15:19:23,421 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:19:23,422 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] [2018-10-10 15:19:23,427 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:19:23,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:19:23,437 INFO L82 PathProgramCache]: Analyzing trace with hash 575352496, now seen corresponding path program 1 times [2018-10-10 15:19:23,503 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:19:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:19:23,715 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 15:19:23,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 15:19:23,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 15:19:23,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 15:19:23,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 15:19:23,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 15:19:23,741 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 6 states. [2018-10-10 15:19:24,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:19:24,216 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2018-10-10 15:19:24,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 15:19:24,217 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-10-10 15:19:24,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:19:24,230 INFO L225 Difference]: With dead ends: 80 [2018-10-10 15:19:24,230 INFO L226 Difference]: Without dead ends: 79 [2018-10-10 15:19:24,232 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-10-10 15:19:24,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2018-10-10 15:19:24,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 60. [2018-10-10 15:19:24,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-10-10 15:19:24,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 60 transitions. [2018-10-10 15:19:24,285 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 60 transitions. Word has length 33 [2018-10-10 15:19:24,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:19:24,286 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 60 transitions. [2018-10-10 15:19:24,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 15:19:24,286 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 60 transitions. [2018-10-10 15:19:24,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-10 15:19:24,288 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:19:24,288 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-10 15:19:24,290 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:19:24,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:19:24,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1378543043, now seen corresponding path program 1 times [2018-10-10 15:19:24,292 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:19:24,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:19:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:19:24,877 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:19:24,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2018-10-10 15:19:24,879 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 15:19:24,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 15:19:24,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-10-10 15:19:24,881 INFO L87 Difference]: Start difference. First operand 60 states and 60 transitions. Second operand 14 states. [2018-10-10 15:19:26,610 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-10-10 15:19:27,028 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-10-10 15:19:27,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:19:27,133 INFO L93 Difference]: Finished difference Result 109 states and 109 transitions. [2018-10-10 15:19:27,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-10 15:19:27,134 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 59 [2018-10-10 15:19:27,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:19:27,137 INFO L225 Difference]: With dead ends: 109 [2018-10-10 15:19:27,137 INFO L226 Difference]: Without dead ends: 105 [2018-10-10 15:19:27,139 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=259, Invalid=611, Unknown=0, NotChecked=0, Total=870 [2018-10-10 15:19:27,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-10-10 15:19:27,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 86. [2018-10-10 15:19:27,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-10-10 15:19:27,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2018-10-10 15:19:27,151 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 59 [2018-10-10 15:19:27,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:19:27,152 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2018-10-10 15:19:27,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 15:19:27,152 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2018-10-10 15:19:27,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-10-10 15:19:27,155 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 15:19:27,156 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2018-10-10 15:19:27,156 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-10 15:19:27,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 15:19:27,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1814396810, now seen corresponding path program 2 times [2018-10-10 15:19:27,158 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-10 15:19:27,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 15:19:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 37 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 15:19:27,317 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-10 15:19:27,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-10 15:19:27,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 15:19:27,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 15:19:27,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-10 15:19:27,319 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand 8 states. [2018-10-10 15:19:27,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 15:19:27,493 INFO L93 Difference]: Finished difference Result 54 states and 53 transitions. [2018-10-10 15:19:27,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 15:19:27,494 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 85 [2018-10-10 15:19:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 15:19:27,495 INFO L225 Difference]: With dead ends: 54 [2018-10-10 15:19:27,496 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 15:19:27,496 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-10-10 15:19:27,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 15:19:27,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 15:19:27,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 15:19:27,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 15:19:27,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2018-10-10 15:19:27,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 15:19:27,498 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 15:19:27,498 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 15:19:27,499 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 15:19:27,499 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 15:19:27,505 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength_true-valid-memsafety.c_9.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 03:19:27 BoogieIcfgContainer [2018-10-10 15:19:27,505 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 15:19:27,506 INFO L168 Benchmark]: Toolchain (without parser) took 4816.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 7.1 GB. [2018-10-10 15:19:27,508 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 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. [2018-10-10 15:19:27,508 INFO L168 Benchmark]: Boogie Preprocessor took 57.48 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. [2018-10-10 15:19:27,509 INFO L168 Benchmark]: RCFGBuilder took 536.52 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-10-10 15:19:27,510 INFO L168 Benchmark]: TraceAbstraction took 4218.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB. [2018-10-10 15:19:27,514 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 0.20 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 57.48 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 536.52 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4218.14 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.5 MB). Peak memory consumption was 211.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 109]: 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, 51 locations, 1 error locations. SAFE Result, 4.1s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 127 SDtfs, 633 SDslu, 615 SDs, 0 SdLazy, 250 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred 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, 38 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 48176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 37/59 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/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-10_15-19-27-526.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength_true-valid-memsafety.c_9.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-10_15-19-27-526.csv Received shutdown request...