java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e4dfe74 [2018-12-18 18:09:32,362 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-18 18:09:32,367 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-18 18:09:32,381 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-18 18:09:32,414 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_array_oct.epf [2018-12-18 18:09:32,428 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-18 18:09:32,428 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-18 18:09:32,429 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-18 18:09:32,429 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-18 18:09:32,429 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-18 18:09:32,429 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-18 18:09:32,430 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-18 18:09:32,430 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-18 18:09:32,430 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-18 18:09:32,430 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-18 18:09:32,430 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-18 18:09:32,431 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-18 18:09:32,432 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-18 18:09:32,432 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-18 18:09:32,432 INFO L133 SettingsManager]: * Use SBE=true [2018-12-18 18:09:32,432 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-18 18:09:32,432 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-18 18:09:32,433 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-18 18:09:32,433 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-18 18:09:32,433 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-18 18:09:32,433 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-18 18:09:32,433 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-18 18:09:32,434 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-18 18:09:32,435 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-18 18:09:32,435 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-18 18:09:32,435 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-18 18:09:32,436 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-18 18:09:32,436 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-18 18:09:32,436 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-18 18:09:32,436 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-18 18:09:32,436 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-18 18:09:32,437 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-18 18:09:32,437 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-18 18:09:32,437 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-18 18:09:32,437 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-18 18:09:32,437 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-18 18:09:32,438 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-18 18:09:32,438 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-18 18:09:32,476 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-18 18:09:32,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-18 18:09:32,504 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-18 18:09:32,506 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-18 18:09:32,506 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-18 18:09:32,508 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified02.bpl [2018-12-18 18:09:32,508 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified02.bpl' [2018-12-18 18:09:32,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-18 18:09:32,575 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-18 18:09:32,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-18 18:09:32,576 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-18 18:09:32,576 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-18 18:09:32,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,620 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-18 18:09:32,620 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-18 18:09:32,621 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-18 18:09:32,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-18 18:09:32,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-18 18:09:32,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-18 18:09:32,625 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-18 18:09:32,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,656 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/1) ... [2018-12-18 18:09:32,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-18 18:09:32,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-18 18:09:32,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-18 18:09:32,659 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-18 18:09:32,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (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:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-18 18:09:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-18 18:09:32,737 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-18 18:09:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ~malloc [2018-12-18 18:09:33,198 INFO L272 CfgBuilder]: Using library mode [2018-12-18 18:09:33,199 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-18 18:09:33,199 INFO L202 PluginConnector]: Adding new model PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:09:33 BoogieIcfgContainer [2018-12-18 18:09:33,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-18 18:09:33,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-18 18:09:33,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-18 18:09:33,205 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-18 18:09:33,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 06:09:32" (1/2) ... [2018-12-18 18:09:33,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@91cef5a and model type PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:09:33, skipping insertion in model container [2018-12-18 18:09:33,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PointerIncrement-simplified02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:09:33" (2/2) ... [2018-12-18 18:09:33,209 INFO L112 eAbstractionObserver]: Analyzing ICFG PointerIncrement-simplified02.bpl [2018-12-18 18:09:33,220 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-18 18:09:33,229 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-18 18:09:33,249 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-18 18:09:33,286 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-18 18:09:33,287 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-18 18:09:33,287 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-18 18:09:33,287 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-18 18:09:33,287 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-18 18:09:33,288 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-18 18:09:33,288 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-18 18:09:33,288 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-18 18:09:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-18 18:09:33,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-18 18:09:33,317 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:09:33,318 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-18 18:09:33,324 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:09:33,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:09:33,332 INFO L82 PathProgramCache]: Analyzing trace with hash 927590, now seen corresponding path program 1 times [2018-12-18 18:09:33,336 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:09:33,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:09:33,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 18:09:33,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:09:33,398 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:09:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:09:33,683 INFO L273 TraceCheckUtils]: 0: Hoare triple {11#true} call p.base, p.offset := ~malloc(400);q.base, q.offset := p.base, p.offset; {13#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} is VALID [2018-12-18 18:09:33,700 INFO L273 TraceCheckUtils]: 1: Hoare triple {13#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} #t~short2 := q.offset < p.offset + 400; {13#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} is VALID [2018-12-18 18:09:33,702 INFO L273 TraceCheckUtils]: 2: Hoare triple {13#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} assume #t~short2; {13#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} is VALID [2018-12-18 18:09:33,703 INFO L273 TraceCheckUtils]: 3: Hoare triple {13#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} assume !(4 + q.offset <= #length[q.base]); {12#false} is VALID [2018-12-18 18:09:33,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:09:33,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-18 18:09:33,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-18 18:09:33,709 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-18 18:09:33,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-12-18 18:09:33,717 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 18:09:33,721 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-12-18 18:09:33,760 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:09:33,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-18 18:09:33,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-18 18:09:33,769 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-18 18:09:33,771 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2018-12-18 18:09:33,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:09:33,926 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-12-18 18:09:33,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-18 18:09:33,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-12-18 18:09:33,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 18:09:33,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-18 18:09:33,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2018-12-18 18:09:33,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-18 18:09:33,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18 transitions. [2018-12-18 18:09:33,936 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 18 transitions. [2018-12-18 18:09:34,024 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 18:09:34,035 INFO L225 Difference]: With dead ends: 17 [2018-12-18 18:09:34,035 INFO L226 Difference]: Without dead ends: 10 [2018-12-18 18:09:34,039 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-18 18:09:34,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-12-18 18:09:34,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-12-18 18:09:34,089 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 18:09:34,090 INFO L82 GeneralOperation]: Start isEquivalent. First operand 10 states. Second operand 9 states. [2018-12-18 18:09:34,091 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 9 states. [2018-12-18 18:09:34,091 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 9 states. [2018-12-18 18:09:34,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:09:34,093 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-12-18 18:09:34,094 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-12-18 18:09:34,094 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:09:34,094 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:09:34,095 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 10 states. [2018-12-18 18:09:34,095 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 10 states. [2018-12-18 18:09:34,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 18:09:34,097 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-12-18 18:09:34,097 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2018-12-18 18:09:34,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 18:09:34,098 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 18:09:34,098 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 18:09:34,098 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 18:09:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-18 18:09:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-12-18 18:09:34,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2018-12-18 18:09:34,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 18:09:34,103 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-12-18 18:09:34,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-18 18:09:34,103 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-18 18:09:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-18 18:09:34,104 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 18:09:34,104 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2018-12-18 18:09:34,104 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 18:09:34,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 18:09:34,105 INFO L82 PathProgramCache]: Analyzing trace with hash 1951667359, now seen corresponding path program 1 times [2018-12-18 18:09:34,105 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 18:09:34,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:09:34,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 18:09:34,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 18:09:34,107 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 18:09:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 18:09:34,611 WARN L181 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2018-12-18 18:09:34,622 INFO L273 TraceCheckUtils]: 0: Hoare triple {66#true} call p.base, p.offset := ~malloc(400);q.base, q.offset := p.base, p.offset; {68#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} is VALID [2018-12-18 18:09:34,624 INFO L273 TraceCheckUtils]: 1: Hoare triple {68#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} #t~short2 := q.offset < p.offset + 400; {68#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} is VALID [2018-12-18 18:09:34,634 INFO L273 TraceCheckUtils]: 2: Hoare triple {68#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} assume #t~short2; {68#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} is VALID [2018-12-18 18:09:34,648 INFO L273 TraceCheckUtils]: 3: Hoare triple {68#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} assume 4 + q.offset <= #length[q.base]; {68#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} is VALID [2018-12-18 18:09:34,668 INFO L273 TraceCheckUtils]: 4: Hoare triple {68#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} q.base, q.offset := q.base, q.offset + 4; {69#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} is VALID [2018-12-18 18:09:34,678 INFO L273 TraceCheckUtils]: 5: Hoare triple {69#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} #t~short2 := q.offset < p.offset + 400; {69#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} is VALID [2018-12-18 18:09:34,688 INFO L273 TraceCheckUtils]: 6: Hoare triple {69#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} assume #t~short2; {69#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} is VALID [2018-12-18 18:09:34,692 INFO L273 TraceCheckUtils]: 7: Hoare triple {69#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} assume !(4 + q.offset <= #length[q.base]); {67#false} is VALID [2018-12-18 18:09:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 18:09:34,694 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 18:09:34,694 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 18:09:34,695 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 9 with the following transitions: [2018-12-18 18:09:34,697 INFO L207 CegarAbsIntRunner]: [0], [4], [7], [8], [9], [13] [2018-12-18 18:09:34,768 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-18 18:09:34,769 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-18 18:09:34,805 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: java.lang.UnsupportedOperationException: Unknonwn type of statement: CallStatement[false,[VariableLHS[p.base,],VariableLHS[p.offset,]],~malloc,[IntegerLiteral[400]]] at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.handleInfeasibleCase(BaseRefinementStrategy.java:296) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:206) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.lang.UnsupportedOperationException: Unknonwn type of statement: CallStatement[false,[VariableLHS[p.base,],VariableLHS[p.offset,]],~malloc,[IntegerLiteral[400]]] at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainStatementProcessor.process(ArrayDomainStatementProcessor.java:51) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainPostOperator.handleInternalTransition(ArrayDomainPostOperator.java:124) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainPostOperator.apply(ArrayDomainPostOperator.java:74) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainPostOperator.apply(ArrayDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.constructInterpolantGenerator(BaseTaipanRefinementStrategy.java:382) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseTaipanRefinementStrategy.getInterpolantGenerator(BaseTaipanRefinementStrategy.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:380) ... 20 more [2018-12-18 18:09:34,810 INFO L168 Benchmark]: Toolchain (without parser) took 2236.50 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-12-18 18:09:34,812 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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. [2018-12-18 18:09:34,813 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.73 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. [2018-12-18 18:09:34,815 INFO L168 Benchmark]: Boogie Preprocessor took 33.86 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. [2018-12-18 18:09:34,816 INFO L168 Benchmark]: RCFGBuilder took 541.34 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-18 18:09:34,819 INFO L168 Benchmark]: TraceAbstraction took 1607.69 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-12-18 18:09:34,832 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.24 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 Procedure Inliner took 47.73 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 33.86 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 541.34 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1607.69 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: java.lang.UnsupportedOperationException: Unknonwn type of statement: CallStatement[false,[VariableLHS[p.base,],VariableLHS[p.offset,]],~malloc,[IntegerLiteral[400]]] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: java.lang.UnsupportedOperationException: Unknonwn type of statement: CallStatement[false,[VariableLHS[p.base,],VariableLHS[p.offset,]],~malloc,[IntegerLiteral[400]]]: de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.extractInterpolants(BaseRefinementStrategy.java:391) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...