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_compound_exp_cong.epf -i ../../../trunk/examples/programs/heapseparator/speedup-poc-dd-6-limited.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e4dfe74 [2018-12-18 17:52:54,433 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-18 17:52:54,436 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-18 17:52:54,454 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-18 17:52:54,486 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/array-bench/reach_32bit_compound_exp_cong.epf [2018-12-18 17:52:54,499 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-18 17:52:54,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-18 17:52:54,500 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-18 17:52:54,501 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-18 17:52:54,501 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-18 17:52:54,501 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-18 17:52:54,501 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-18 17:52:54,501 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-18 17:52:54,502 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-18 17:52:54,502 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-18 17:52:54,502 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-18 17:52:54,502 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-18 17:52:54,502 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-18 17:52:54,503 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-18 17:52:54,503 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-18 17:52:54,503 INFO L133 SettingsManager]: * Use SBE=true [2018-12-18 17:52:54,504 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-18 17:52:54,504 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-18 17:52:54,504 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-18 17:52:54,504 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-18 17:52:54,504 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-18 17:52:54,504 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-18 17:52:54,505 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-18 17:52:54,505 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-18 17:52:54,505 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-18 17:52:54,505 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-18 17:52:54,505 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-18 17:52:54,506 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-18 17:52:54,506 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-18 17:52:54,506 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-18 17:52:54,506 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-18 17:52:54,506 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-18 17:52:54,507 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-18 17:52:54,507 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-18 17:52:54,507 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-18 17:52:54,507 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-18 17:52:54,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-18 17:52:54,507 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-18 17:52:54,508 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-18 17:52:54,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-18 17:52:54,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-18 17:52:54,567 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-18 17:52:54,568 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-18 17:52:54,569 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-18 17:52:54,569 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-6-limited.bpl [2018-12-18 17:52:54,570 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/heapseparator/speedup-poc-dd-6-limited.bpl' [2018-12-18 17:52:54,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-18 17:52:54,622 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-18 17:52:54,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-18 17:52:54,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-18 17:52:54,623 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-18 17:52:54,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-18 17:52:54,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-18 17:52:54,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-18 17:52:54,696 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-18 17:52:54,709 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/1) ... [2018-12-18 17:52:54,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-18 17:52:54,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-18 17:52:54,741 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-18 17:52:54,741 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-18 17:52:54,743 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (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 17:52:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2018-12-18 17:52:54,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-18 17:52:54,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-18 17:52:55,485 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-18 17:52:55,486 INFO L280 CfgBuilder]: Removed 3 assue(true) statements. [2018-12-18 17:52:55,486 INFO L202 PluginConnector]: Adding new model speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:52:55 BoogieIcfgContainer [2018-12-18 17:52:55,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-18 17:52:55,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-18 17:52:55,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-18 17:52:55,493 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-18 17:52:55,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:54" (1/2) ... [2018-12-18 17:52:55,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bc54489 and model type speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:52:55, skipping insertion in model container [2018-12-18 17:52:55,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "speedup-poc-dd-6-limited.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:52:55" (2/2) ... [2018-12-18 17:52:55,497 INFO L112 eAbstractionObserver]: Analyzing ICFG speedup-poc-dd-6-limited.bpl [2018-12-18 17:52:55,509 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-18 17:52:55,519 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-12-18 17:52:55,537 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2018-12-18 17:52:55,582 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-18 17:52:55,582 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-18 17:52:55,582 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-18 17:52:55,582 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-18 17:52:55,582 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-18 17:52:55,583 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-18 17:52:55,583 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-18 17:52:55,583 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-18 17:52:55,606 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-18 17:52:55,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-18 17:52:55,621 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:55,622 INFO L402 BasicCegarLoop]: trace histogram [1, 1] [2018-12-18 17:52:55,625 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:55,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:55,634 INFO L82 PathProgramCache]: Analyzing trace with hash 988, now seen corresponding path program 1 times [2018-12-18 17:52:55,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:55,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:55,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:55,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:55,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:55,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:55,891 INFO L273 TraceCheckUtils]: 0: Hoare triple {18#true} havoc main_p1, main_p2, main_p3, main_p4, main_p5, main_p6;call main_p1 := malloc();call main_p2 := malloc();call main_p3 := malloc();call main_p4 := malloc();call main_p5 := malloc();call main_p6 := malloc();assume main_p1 < main_p2;assume main_p2 < main_p3;assume main_p3 < main_p4;assume main_p4 < main_p5;assume main_p5 < main_p6;#memory_int := #memory_int[main_p1 := 0];#memory_int := #memory_int[main_p2 := 0];#memory_int := #memory_int[main_p3 := 0];#memory_int := #memory_int[main_p4 := 0];#memory_int := #memory_int[main_p5 := 0];#memory_int := #memory_int[main_p6 := 0]; {20#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} is VALID [2018-12-18 17:52:55,904 INFO L273 TraceCheckUtils]: 1: Hoare triple {20#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} assume !(#memory_int[main_p1] <= 0); {19#false} is VALID [2018-12-18 17:52:55,906 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 17:52:55,908 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-18 17:52:55,908 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-18 17:52:55,909 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-18 17:52:55,913 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-18 17:52:55,915 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:55,918 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-12-18 17:52:55,954 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:55,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-18 17:52:55,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-18 17:52:55,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-18 17:52:55,967 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2018-12-18 17:52:56,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:56,443 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2018-12-18 17:52:56,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-18 17:52:56,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-12-18 17:52:56,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:56,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-18 17:52:56,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2018-12-18 17:52:56,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-18 17:52:56,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2018-12-18 17:52:56,453 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 39 transitions. [2018-12-18 17:52:56,539 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 39 edges. 39 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:56,553 INFO L225 Difference]: With dead ends: 29 [2018-12-18 17:52:56,553 INFO L226 Difference]: Without dead ends: 24 [2018-12-18 17:52:56,557 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-18 17:52:56,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-18 17:52:56,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 14. [2018-12-18 17:52:56,626 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:56,627 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand 14 states. [2018-12-18 17:52:56,628 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand 14 states. [2018-12-18 17:52:56,628 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 14 states. [2018-12-18 17:52:56,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:56,633 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2018-12-18 17:52:56,633 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-12-18 17:52:56,634 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:56,634 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:56,634 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 24 states. [2018-12-18 17:52:56,635 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 24 states. [2018-12-18 17:52:56,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:56,639 INFO L93 Difference]: Finished difference Result 24 states and 34 transitions. [2018-12-18 17:52:56,639 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2018-12-18 17:52:56,640 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:56,640 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:56,640 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:56,641 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-18 17:52:56,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 25 transitions. [2018-12-18 17:52:56,645 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 25 transitions. Word has length 2 [2018-12-18 17:52:56,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:56,646 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 25 transitions. [2018-12-18 17:52:56,646 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-18 17:52:56,646 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 25 transitions. [2018-12-18 17:52:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-18 17:52:56,647 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:56,647 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-18 17:52:56,648 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr5ASSERT_VIOLATIONASSERT, ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:56,649 INFO L82 PathProgramCache]: Analyzing trace with hash 30376, now seen corresponding path program 1 times [2018-12-18 17:52:56,649 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:56,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:56,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:56,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:56,651 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:57,047 WARN L181 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 13 [2018-12-18 17:52:57,121 INFO L273 TraceCheckUtils]: 0: Hoare triple {118#true} havoc main_p1, main_p2, main_p3, main_p4, main_p5, main_p6;call main_p1 := malloc();call main_p2 := malloc();call main_p3 := malloc();call main_p4 := malloc();call main_p5 := malloc();call main_p6 := malloc();assume main_p1 < main_p2;assume main_p2 < main_p3;assume main_p3 < main_p4;assume main_p4 < main_p5;assume main_p5 < main_p6;#memory_int := #memory_int[main_p1 := 0];#memory_int := #memory_int[main_p2 := 0];#memory_int := #memory_int[main_p3 := 0];#memory_int := #memory_int[main_p4 := 0];#memory_int := #memory_int[main_p5 := 0];#memory_int := #memory_int[main_p6 := 0]; {120#(and (= 0 (select (store |#memory_int| ULTIMATE.start_main_p4 (+ (select |#memory_int| ULTIMATE.start_main_p4) (- 1))) ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p4)))} is VALID [2018-12-18 17:52:57,136 INFO L273 TraceCheckUtils]: 1: Hoare triple {120#(and (= 0 (select (store |#memory_int| ULTIMATE.start_main_p4 (+ (select |#memory_int| ULTIMATE.start_main_p4) (- 1))) ULTIMATE.start_main_p1)) (not (= ULTIMATE.start_main_p1 ULTIMATE.start_main_p4)))} #memory_int := #memory_int[main_p4 := #memory_int[main_p4] - 1]; {121#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} is VALID [2018-12-18 17:52:57,152 INFO L273 TraceCheckUtils]: 2: Hoare triple {121#(= (select |#memory_int| ULTIMATE.start_main_p1) 0)} assume !(#memory_int[main_p1] <= 0); {119#false} is VALID [2018-12-18 17:52:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-18 17:52:57,153 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:57,153 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:57,155 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 4 with the following transitions: [2018-12-18 17:52:57,162 INFO L207 CegarAbsIntRunner]: [0], [18], [27] [2018-12-18 17:52:57,214 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-18 17:52:57,214 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-18 17:52:57,254 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:425) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:416) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.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) 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) [2018-12-18 17:52:57,260 INFO L168 Benchmark]: Toolchain (without parser) took 2639.08 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-12-18 17:52:57,262 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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 17:52:57,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.11 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 17:52:57,263 INFO L168 Benchmark]: Boogie Preprocessor took 42.46 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 17:52:57,264 INFO L168 Benchmark]: RCFGBuilder took 748.02 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. [2018-12-18 17:52:57,265 INFO L168 Benchmark]: TraceAbstraction took 1771.16 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2018-12-18 17:52:57,271 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 0.23 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 72.11 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 42.46 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 748.02 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 1771.16 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: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: null de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: null: de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:140) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...