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-simplified03.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c30ebe1 [2018-12-17 14:30:20,542 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-17 14:30:20,544 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-17 14:30:20,560 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-17 14:30:20,561 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-17 14:30:20,563 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-17 14:30:20,565 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-17 14:30:20,568 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-17 14:30:20,578 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-17 14:30:20,579 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-17 14:30:20,580 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-17 14:30:20,580 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-17 14:30:20,587 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-17 14:30:20,588 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-17 14:30:20,589 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-17 14:30:20,590 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-17 14:30:20,592 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-17 14:30:20,594 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-17 14:30:20,596 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-17 14:30:20,598 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-17 14:30:20,599 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-17 14:30:20,600 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-17 14:30:20,602 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-17 14:30:20,603 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-17 14:30:20,603 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-17 14:30:20,604 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-17 14:30:20,605 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-17 14:30:20,606 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-17 14:30:20,610 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-17 14:30:20,611 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-17 14:30:20,612 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-17 14:30:20,612 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-17 14:30:20,614 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-17 14:30:20,614 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-17 14:30:20,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-17 14:30:20,616 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-17 14:30:20,617 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 [2018-12-17 14:30:20,640 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-17 14:30:20,640 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-17 14:30:20,642 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-17 14:30:20,642 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-17 14:30:20,642 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-17 14:30:20,642 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-17 14:30:20,643 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-17 14:30:20,643 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-17 14:30:20,643 INFO L133 SettingsManager]: * Underlying domain=OctagonDomain [2018-12-17 14:30:20,643 INFO L133 SettingsManager]: * Abstract domain=ArrayDomain [2018-12-17 14:30:20,643 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-17 14:30:20,644 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-17 14:30:20,645 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-17 14:30:20,645 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-17 14:30:20,645 INFO L133 SettingsManager]: * Use SBE=true [2018-12-17 14:30:20,646 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-17 14:30:20,646 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-17 14:30:20,646 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-17 14:30:20,646 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-17 14:30:20,646 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-17 14:30:20,646 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-17 14:30:20,648 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-17 14:30:20,649 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-17 14:30:20,649 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-17 14:30:20,649 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-17 14:30:20,649 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-17 14:30:20,649 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-17 14:30:20,650 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-17 14:30:20,650 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-17 14:30:20,650 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-17 14:30:20,650 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-17 14:30:20,650 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-17 14:30:20,651 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-17 14:30:20,651 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-17 14:30:20,651 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-17 14:30:20,651 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-17 14:30:20,651 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-17 14:30:20,652 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-17 14:30:20,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-17 14:30:20,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-17 14:30:20,721 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-17 14:30:20,723 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-17 14:30:20,724 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-17 14:30:20,725 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified03.bpl [2018-12-17 14:30:20,726 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified03.bpl' [2018-12-17 14:30:20,788 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-17 14:30:20,790 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-17 14:30:20,791 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-17 14:30:20,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-17 14:30:20,791 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-17 14:30:20,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,830 WARN L165 Inliner]: Program contained no entry procedure! [2018-12-17 14:30:20,830 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-12-17 14:30:20,830 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-12-17 14:30:20,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-17 14:30:20,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-17 14:30:20,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-17 14:30:20,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-17 14:30:20,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/1) ... [2018-12-17 14:30:20,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-17 14:30:20,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-17 14:30:20,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-17 14:30:20,862 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-17 14:30:20,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (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 [2018-12-17 14:30:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-17 14:30:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-17 14:30:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure ~malloc [2018-12-17 14:30:21,254 INFO L272 CfgBuilder]: Using library mode [2018-12-17 14:30:21,254 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-17 14:30:21,255 INFO L202 PluginConnector]: Adding new model PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:30:21 BoogieIcfgContainer [2018-12-17 14:30:21,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-17 14:30:21,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-17 14:30:21,257 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-17 14:30:21,260 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-17 14:30:21,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.12 02:30:20" (1/2) ... [2018-12-17 14:30:21,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@664242d1 and model type PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 02:30:21, skipping insertion in model container [2018-12-17 14:30:21,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PointerIncrement-simplified03.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 02:30:21" (2/2) ... [2018-12-17 14:30:21,264 INFO L112 eAbstractionObserver]: Analyzing ICFG PointerIncrement-simplified03.bpl [2018-12-17 14:30:21,274 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-17 14:30:21,284 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-17 14:30:21,302 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-17 14:30:21,338 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-17 14:30:21,338 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-17 14:30:21,338 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-17 14:30:21,339 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-17 14:30:21,339 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-17 14:30:21,339 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-17 14:30:21,339 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-17 14:30:21,339 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-17 14:30:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-12-17 14:30:21,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-17 14:30:21,362 INFO L394 BasicCegarLoop]: Found error trace [2018-12-17 14:30:21,363 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-17 14:30:21,366 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-17 14:30:21,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-17 14:30:21,373 INFO L82 PathProgramCache]: Analyzing trace with hash 29984, now seen corresponding path program 1 times [2018-12-17 14:30:21,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-17 14:30:21,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-17 14:30:21,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-17 14:30:21,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-17 14:30:21,433 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-17 14:30:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-17 14:30:21,734 INFO L273 TraceCheckUtils]: 0: Hoare triple {10#true} call p.base, p.offset := ~malloc(400);q.base, q.offset := p.base, p.offset; {12#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} is VALID [2018-12-17 14:30:21,740 INFO L273 TraceCheckUtils]: 1: Hoare triple {12#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} assume q.offset < p.offset + 400; {12#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} is VALID [2018-12-17 14:30:21,742 INFO L273 TraceCheckUtils]: 2: Hoare triple {12#(and (<= main_q.offset 0) (= (select |#length| main_q.base) 400))} assume !(4 + q.offset <= #length[q.base]); {11#false} is VALID [2018-12-17 14:30:21,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-17 14:30:21,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-17 14:30:21,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-17 14:30:21,746 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-17 14:30:21,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-17 14:30:21,752 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-17 14:30:21,756 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-12-17 14:30:21,785 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-17 14:30:21,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-17 14:30:21,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-17 14:30:21,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-17 14:30:21,796 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2018-12-17 14:30:21,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-17 14:30:21,961 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-12-17 14:30:21,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-17 14:30:21,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2018-12-17 14:30:21,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-17 14:30:21,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-17 14:30:21,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2018-12-17 14:30:21,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-17 14:30:21,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2018-12-17 14:30:21,971 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 16 transitions. [2018-12-17 14:30:22,044 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-17 14:30:22,058 INFO L225 Difference]: With dead ends: 15 [2018-12-17 14:30:22,058 INFO L226 Difference]: Without dead ends: 8 [2018-12-17 14:30:22,073 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 [2018-12-17 14:30:22,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-17 14:30:22,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-12-17 14:30:22,154 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-17 14:30:22,155 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand 7 states. [2018-12-17 14:30:22,155 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 7 states. [2018-12-17 14:30:22,156 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 7 states. [2018-12-17 14:30:22,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-17 14:30:22,158 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-12-17 14:30:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-17 14:30:22,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-17 14:30:22,159 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-17 14:30:22,159 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 8 states. [2018-12-17 14:30:22,159 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 8 states. [2018-12-17 14:30:22,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-17 14:30:22,161 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-12-17 14:30:22,161 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-17 14:30:22,162 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-17 14:30:22,162 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-17 14:30:22,162 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-17 14:30:22,163 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-17 14:30:22,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-17 14:30:22,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-12-17 14:30:22,166 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 3 [2018-12-17 14:30:22,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-17 14:30:22,166 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-12-17 14:30:22,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-17 14:30:22,167 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-12-17 14:30:22,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-17 14:30:22,167 INFO L394 BasicCegarLoop]: Found error trace [2018-12-17 14:30:22,168 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-12-17 14:30:22,168 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-12-17 14:30:22,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-17 14:30:22,169 INFO L82 PathProgramCache]: Analyzing trace with hash 893294860, now seen corresponding path program 1 times [2018-12-17 14:30:22,169 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-17 14:30:22,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-17 14:30:22,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-17 14:30:22,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-17 14:30:22,171 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-17 14:30:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-17 14:30:22,510 INFO L273 TraceCheckUtils]: 0: Hoare triple {57#true} call p.base, p.offset := ~malloc(400);q.base, q.offset := p.base, p.offset; {59#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} is VALID [2018-12-17 14:30:22,520 INFO L273 TraceCheckUtils]: 1: Hoare triple {59#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} assume q.offset < p.offset + 400; {59#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} is VALID [2018-12-17 14:30:22,533 INFO L273 TraceCheckUtils]: 2: Hoare triple {59#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} assume 4 + q.offset <= #length[q.base]; {59#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} is VALID [2018-12-17 14:30:22,546 INFO L273 TraceCheckUtils]: 3: Hoare triple {59#(and (<= main_q.offset 0) (= 400 (select |#length| main_q.base)))} q.base, q.offset := q.base, q.offset + 4; {60#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} is VALID [2018-12-17 14:30:22,559 INFO L273 TraceCheckUtils]: 4: Hoare triple {60#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} assume q.offset < p.offset + 400; {60#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} is VALID [2018-12-17 14:30:22,561 INFO L273 TraceCheckUtils]: 5: Hoare triple {60#(and (<= main_q.offset 4) (= (select |#length| main_q.base) 400))} assume !(4 + q.offset <= #length[q.base]); {58#false} is VALID [2018-12-17 14:30:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-17 14:30:22,562 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-17 14:30:22,563 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-17 14:30:22,564 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2018-12-17 14:30:22,566 INFO L207 CegarAbsIntRunner]: [0], [6], [7], [8], [12] [2018-12-17 14:30:22,623 INFO L148 AbstractInterpreter]: Using domain ArrayDomain [2018-12-17 14:30:22,623 INFO L101 FixpointEngine]: Starting fixpoint engine with domain ArrayDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-17 14:30:22,654 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:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.array.ArrayDomainPostOperator.apply(ArrayDomainPostOperator.java:70) 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:340) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:536) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:340) 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 [2018-12-17 14:30:22,661 INFO L168 Benchmark]: Toolchain (without parser) took 1872.31 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. [2018-12-17 14:30:22,664 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 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. [2018-12-17 14:30:22,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.82 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. [2018-12-17 14:30:22,665 INFO L168 Benchmark]: Boogie Preprocessor took 27.60 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. [2018-12-17 14:30:22,666 INFO L168 Benchmark]: RCFGBuilder took 394.26 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. [2018-12-17 14:30:22,667 INFO L168 Benchmark]: TraceAbstraction took 1400.93 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. [2018-12-17 14:30:22,672 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 0.25 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 41.82 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 27.60 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 394.26 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 1400.93 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...