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/ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-093a8c0 [2018-10-14 16:24:39,413 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-14 16:24:39,415 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-14 16:24:39,428 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-14 16:24:39,428 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-14 16:24:39,429 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-14 16:24:39,430 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-14 16:24:39,432 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-14 16:24:39,434 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-14 16:24:39,435 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-14 16:24:39,435 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-14 16:24:39,436 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-14 16:24:39,437 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-14 16:24:39,438 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-14 16:24:39,439 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-14 16:24:39,440 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-14 16:24:39,441 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-14 16:24:39,443 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-14 16:24:39,445 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-14 16:24:39,446 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-14 16:24:39,447 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-14 16:24:39,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-14 16:24:39,451 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-14 16:24:39,451 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-14 16:24:39,452 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-14 16:24:39,452 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-14 16:24:39,453 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-14 16:24:39,454 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-14 16:24:39,455 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-14 16:24:39,456 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-14 16:24:39,457 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-14 16:24:39,457 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-14 16:24:39,460 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 16:24:39,470 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-14 16:24:39,470 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-14 16:24:39,471 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-14 16:24:39,471 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-10-14 16:24:39,472 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-10-14 16:24:39,472 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-14 16:24:39,473 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-14 16:24:39,474 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-10-14 16:24:39,474 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-14 16:24:39,474 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_TreeInterpolation [2018-10-14 16:24:39,474 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-14 16:24:39,475 INFO L133 SettingsManager]: * Order in Petri net unfolding=Ken McMillan [2018-10-14 16:24:39,475 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-14 16:24:39,476 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-14 16:24:39,476 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-10-14 16:24:39,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-14 16:24:39,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-14 16:24:39,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-14 16:24:39,557 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-10-14 16:24:39,558 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-10-14 16:24:39,559 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl [2018-10-14 16:24:39,559 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20181010-MemSafetyPathprograms/ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl' [2018-10-14 16:24:39,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-14 16:24:39,654 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-10-14 16:24:39,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-14 16:24:39,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-14 16:24:39,655 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-14 16:24:39,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (1/1) ... [2018-10-14 16:24:39,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (1/1) ... [2018-10-14 16:24:39,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (1/1) ... [2018-10-14 16:24:39,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (1/1) ... [2018-10-14 16:24:39,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (1/1) ... [2018-10-14 16:24:39,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (1/1) ... [2018-10-14 16:24:39,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (1/1) ... [2018-10-14 16:24:39,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-14 16:24:39,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-14 16:24:39,731 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-14 16:24:39,731 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-14 16:24:39,732 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (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 16:24:39,818 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-10-14 16:24:39,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-14 16:24:39,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-14 16:24:40,500 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-14 16:24:40,501 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:24:40 BoogieIcfgContainer [2018-10-14 16:24:40,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-14 16:24:40,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-14 16:24:40,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-14 16:24:40,515 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-14 16:24:40,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.10 04:24:39" (1/2) ... [2018-10-14 16:24:40,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44eea31d and model type ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 04:24:40, skipping insertion in model container [2018-10-14 16:24:40,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 04:24:40" (2/2) ... [2018-10-14 16:24:40,518 INFO L112 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl [2018-10-14 16:24:40,528 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_TreeInterpolation Determinization: PREDICATE_ABSTRACTION [2018-10-14 16:24:40,537 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-14 16:24:40,554 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-14 16:24:40,583 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-14 16:24:40,584 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-14 16:24:40,584 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-14 16:24:40,584 INFO L384 AbstractCegarLoop]: Compute interpolants for Craig_TreeInterpolation [2018-10-14 16:24:40,585 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-14 16:24:40,585 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-14 16:24:40,585 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-14 16:24:40,585 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-14 16:24:40,585 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-14 16:24:40,605 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states. [2018-10-14 16:24:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-10-14 16:24:40,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:24:40,618 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] [2018-10-14 16:24:40,619 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:24:40,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:24:40,626 INFO L82 PathProgramCache]: Analyzing trace with hash 2012783469, now seen corresponding path program 1 times [2018-10-14 16:24:40,676 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:24:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:24:41,552 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 16:24:41,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-14 16:24:41,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-10-14 16:24:41,563 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-14 16:24:41,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-14 16:24:41,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2018-10-14 16:24:41,580 INFO L87 Difference]: Start difference. First operand 95 states. Second operand 12 states. [2018-10-14 16:24:42,257 WARN L179 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-14 16:24:43,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:24:43,315 INFO L93 Difference]: Finished difference Result 178 states and 180 transitions. [2018-10-14 16:24:43,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-14 16:24:43,317 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 64 [2018-10-14 16:24:43,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:24:43,344 INFO L225 Difference]: With dead ends: 178 [2018-10-14 16:24:43,344 INFO L226 Difference]: Without dead ends: 178 [2018-10-14 16:24:43,348 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2018-10-14 16:24:43,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2018-10-14 16:24:43,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 159. [2018-10-14 16:24:43,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2018-10-14 16:24:43,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 161 transitions. [2018-10-14 16:24:43,416 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 161 transitions. Word has length 64 [2018-10-14 16:24:43,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:24:43,418 INFO L481 AbstractCegarLoop]: Abstraction has 159 states and 161 transitions. [2018-10-14 16:24:43,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-14 16:24:43,418 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 161 transitions. [2018-10-14 16:24:43,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-10-14 16:24:43,422 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:24:43,423 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, 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] [2018-10-14 16:24:43,423 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:24:43,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:24:43,424 INFO L82 PathProgramCache]: Analyzing trace with hash 138911859, now seen corresponding path program 1 times [2018-10-14 16:24:43,425 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:24:43,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:24:43,727 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 26 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-14 16:24:43,728 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:24:43,728 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2018-10-14 16:24:43,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-14 16:24:43,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-14 16:24:43,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-14 16:24:43,732 INFO L87 Difference]: Start difference. First operand 159 states and 161 transitions. Second operand 8 states. [2018-10-14 16:24:44,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:24:44,355 INFO L93 Difference]: Finished difference Result 267 states and 270 transitions. [2018-10-14 16:24:44,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-14 16:24:44,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2018-10-14 16:24:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:24:44,360 INFO L225 Difference]: With dead ends: 267 [2018-10-14 16:24:44,360 INFO L226 Difference]: Without dead ends: 267 [2018-10-14 16:24:44,361 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-10-14 16:24:44,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-10-14 16:24:44,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 187. [2018-10-14 16:24:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 187 states. [2018-10-14 16:24:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 189 transitions. [2018-10-14 16:24:44,378 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 189 transitions. Word has length 118 [2018-10-14 16:24:44,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:24:44,379 INFO L481 AbstractCegarLoop]: Abstraction has 187 states and 189 transitions. [2018-10-14 16:24:44,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-14 16:24:44,379 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 189 transitions. [2018-10-14 16:24:44,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-14 16:24:44,382 INFO L367 BasicCegarLoop]: Found error trace [2018-10-14 16:24:44,382 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, 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] [2018-10-14 16:24:44,383 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-10-14 16:24:44,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-14 16:24:44,383 INFO L82 PathProgramCache]: Analyzing trace with hash -873880243, now seen corresponding path program 1 times [2018-10-14 16:24:44,384 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-10-14 16:24:44,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-14 16:24:44,642 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 30 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-14 16:24:44,643 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-10-14 16:24:44,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-10-14 16:24:44,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-14 16:24:44,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-14 16:24:44,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-10-14 16:24:44,645 INFO L87 Difference]: Start difference. First operand 187 states and 189 transitions. Second operand 10 states. [2018-10-14 16:24:44,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-14 16:24:44,946 INFO L93 Difference]: Finished difference Result 141 states and 142 transitions. [2018-10-14 16:24:44,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-14 16:24:44,947 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 139 [2018-10-14 16:24:44,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-14 16:24:44,948 INFO L225 Difference]: With dead ends: 141 [2018-10-14 16:24:44,948 INFO L226 Difference]: Without dead ends: 0 [2018-10-14 16:24:44,949 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2018-10-14 16:24:44,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-14 16:24:44,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-14 16:24:44,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-14 16:24:44,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-14 16:24:44,950 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2018-10-14 16:24:44,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-14 16:24:44,951 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-14 16:24:44,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-14 16:24:44,951 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-14 16:24:44,951 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-14 16:24:44,957 INFO L202 PluginConnector]: Adding new model ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 04:24:44 BoogieIcfgContainer [2018-10-14 16:24:44,957 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-14 16:24:44,958 INFO L168 Benchmark]: Toolchain (without parser) took 5305.15 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 264.3 MB). Peak memory consumption was 264.3 MB. Max. memory is 7.1 GB. [2018-10-14 16:24:44,960 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:24:44,961 INFO L168 Benchmark]: Boogie Preprocessor took 75.12 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-14 16:24:44,962 INFO L168 Benchmark]: RCFGBuilder took 771.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-14 16:24:44,963 INFO L168 Benchmark]: TraceAbstraction took 4454.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 7.1 GB. [2018-10-14 16:24:44,966 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 0.21 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 75.12 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 771.37 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 4454.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 232.6 MB). Peak memory consumption was 232.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 178]: 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, 95 locations, 1 error locations. SAFE Result, 4.3s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 2.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 368 SDtfs, 674 SDslu, 1715 SDs, 0 SdLazy, 410 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=187occurred 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, 99 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 318 ConstructedInterpolants, 0 QuantifiedInterpolants, 124440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 44/94 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/ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-10-14_16-24-44-978.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/ArraysOfVariableLength2_true-valid-memsafety.c_17.bpl_heapsep-2018-09-18.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-10-14_16-24-44-978.csv Received shutdown request...