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/20170304-DifficultPathPrograms/sum_array.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-e4dfe74 [2018-12-18 17:52:12,282 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-18 17:52:12,284 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-18 17:52:12,299 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-12-18 17:52:12,340 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 17:52:12,352 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-18 17:52:12,352 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-18 17:52:12,353 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2018-12-18 17:52:12,353 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2018-12-18 17:52:12,354 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-18 17:52:12,354 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-18 17:52:12,354 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-18 17:52:12,354 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-18 17:52:12,354 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-18 17:52:12,355 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-18 17:52:12,355 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-18 17:52:12,355 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-18 17:52:12,355 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-18 17:52:12,356 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-18 17:52:12,356 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-18 17:52:12,356 INFO L133 SettingsManager]: * Use SBE=true [2018-12-18 17:52:12,356 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-18 17:52:12,357 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-18 17:52:12,357 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-18 17:52:12,357 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-18 17:52:12,357 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-18 17:52:12,357 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-18 17:52:12,358 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-18 17:52:12,358 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-18 17:52:12,358 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-18 17:52:12,358 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-18 17:52:12,358 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-18 17:52:12,359 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-18 17:52:12,359 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-18 17:52:12,359 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-18 17:52:12,359 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-18 17:52:12,360 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-18 17:52:12,360 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-18 17:52:12,360 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-18 17:52:12,360 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-18 17:52:12,360 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-18 17:52:12,361 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-18 17:52:12,361 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-18 17:52:12,361 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-12-18 17:52:12,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-18 17:52:12,407 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-18 17:52:12,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-18 17:52:12,415 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-12-18 17:52:12,416 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-12-18 17:52:12,417 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum_array.i_3.bpl [2018-12-18 17:52:12,417 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/sum_array.i_3.bpl' [2018-12-18 17:52:12,495 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-18 17:52:12,497 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-12-18 17:52:12,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-18 17:52:12,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-18 17:52:12,498 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-18 17:52:12,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,533 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-18 17:52:12,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-18 17:52:12,546 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-18 17:52:12,546 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-18 17:52:12,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/1) ... [2018-12-18 17:52:12,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-18 17:52:12,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-18 17:52:12,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-18 17:52:12,583 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-18 17:52:12,586 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (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 17:52:12,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-18 17:52:12,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-18 17:52:13,110 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-18 17:52:13,110 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-18 17:52:13,111 INFO L202 PluginConnector]: Adding new model sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:52:13 BoogieIcfgContainer [2018-12-18 17:52:13,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-18 17:52:13,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-18 17:52:13,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-18 17:52:13,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-18 17:52:13,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.12 05:52:12" (1/2) ... [2018-12-18 17:52:13,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b99d76 and model type sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 05:52:13, skipping insertion in model container [2018-12-18 17:52:13,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 05:52:13" (2/2) ... [2018-12-18 17:52:13,120 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array.i_3.bpl [2018-12-18 17:52:13,130 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-18 17:52:13,139 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-18 17:52:13,153 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-18 17:52:13,184 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-18 17:52:13,185 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-18 17:52:13,185 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-18 17:52:13,185 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-18 17:52:13,185 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-18 17:52:13,185 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-18 17:52:13,185 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-18 17:52:13,186 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-18 17:52:13,201 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-18 17:52:13,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-18 17:52:13,208 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:13,209 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-18 17:52:13,211 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:13,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:13,218 INFO L82 PathProgramCache]: Analyzing trace with hash 28790250, now seen corresponding path program 1 times [2018-12-18 17:52:13,221 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:13,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:13,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:13,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:13,274 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:13,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:13,530 INFO L273 TraceCheckUtils]: 0: Hoare triple {11#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~nondet4, main_#t~post3, main_#t~post5, main_#t~post6, main_~M~6, main_~A~6, main_~B~6, main_~C~6, main_~i~6;main_~M~6 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~A~6;havoc main_~B~6;havoc main_~C~6;havoc main_~i~6;main_~i~6 := 0; {13#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2018-12-18 17:52:13,543 INFO L273 TraceCheckUtils]: 1: Hoare triple {13#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0; {14#(<= ULTIMATE.start_main_~M~6 (* 4294967296 (div ULTIMATE.start_main_~M~6 4294967296)))} is VALID [2018-12-18 17:52:13,556 INFO L273 TraceCheckUtils]: 2: Hoare triple {14#(<= ULTIMATE.start_main_~M~6 (* 4294967296 (div ULTIMATE.start_main_~M~6 4294967296)))} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0; {14#(<= ULTIMATE.start_main_~M~6 (* 4294967296 (div ULTIMATE.start_main_~M~6 4294967296)))} is VALID [2018-12-18 17:52:13,570 INFO L273 TraceCheckUtils]: 3: Hoare triple {14#(<= ULTIMATE.start_main_~M~6 (* 4294967296 (div ULTIMATE.start_main_~M~6 4294967296)))} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0;assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);__VERIFIER_assert_#in~cond := (if main_~C~6[main_~i~6 % 4294967296] == main_~A~6[main_~i~6 % 4294967296] + main_~B~6[main_~i~6 % 4294967296] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {12#false} is VALID [2018-12-18 17:52:13,571 INFO L273 TraceCheckUtils]: 4: Hoare triple {12#false} assume !false; {12#false} is VALID [2018-12-18 17:52:13,573 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 17:52:13,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-18 17:52:13,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-18 17:52:13,576 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-18 17:52:13,582 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-12-18 17:52:13,584 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:13,588 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-12-18 17:52:13,609 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:13,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-18 17:52:13,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-18 17:52:13,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-18 17:52:13,622 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2018-12-18 17:52:14,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:14,144 INFO L93 Difference]: Finished difference Result 17 states and 26 transitions. [2018-12-18 17:52:14,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-18 17:52:14,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2018-12-18 17:52:14,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:14,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-18 17:52:14,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-12-18 17:52:14,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-18 17:52:14,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 26 transitions. [2018-12-18 17:52:14,157 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 26 transitions. [2018-12-18 17:52:14,344 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:14,355 INFO L225 Difference]: With dead ends: 17 [2018-12-18 17:52:14,355 INFO L226 Difference]: Without dead ends: 9 [2018-12-18 17:52:14,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-18 17:52:14,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-12-18 17:52:14,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-12-18 17:52:14,587 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:14,588 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:14,589 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:14,589 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:14,592 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2018-12-18 17:52:14,592 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-18 17:52:14,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:14,593 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:14,593 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:14,593 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 9 states. [2018-12-18 17:52:14,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:14,595 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2018-12-18 17:52:14,596 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-18 17:52:14,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:14,597 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:14,597 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:14,600 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-18 17:52:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-12-18 17:52:14,607 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2018-12-18 17:52:14,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:14,607 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-12-18 17:52:14,607 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-18 17:52:14,608 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-12-18 17:52:14,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-18 17:52:14,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-18 17:52:14,608 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-18 17:52:14,610 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-12-18 17:52:14,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:14,611 INFO L82 PathProgramCache]: Analyzing trace with hash 266557342, now seen corresponding path program 1 times [2018-12-18 17:52:14,612 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-18 17:52:14,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:14,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:14,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-18 17:52:14,616 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-18 17:52:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:15,590 WARN L181 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 5 [2018-12-18 17:52:16,101 INFO L273 TraceCheckUtils]: 0: Hoare triple {82#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~nondet4, main_#t~post3, main_#t~post5, main_#t~post6, main_~M~6, main_~A~6, main_~B~6, main_~C~6, main_~i~6;main_~M~6 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~A~6;havoc main_~B~6;havoc main_~C~6;havoc main_~i~6;main_~i~6 := 0; {84#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2018-12-18 17:52:16,101 INFO L273 TraceCheckUtils]: 1: Hoare triple {84#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;main_~A~6 := main_~A~6[main_~i~6 % 4294967296 := main_#t~nondet2];havoc main_#t~nondet2;assume !!(main_~A~6[main_~i~6 % 4294967296] <= 1000000);main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {82#true} is VALID [2018-12-18 17:52:16,102 INFO L273 TraceCheckUtils]: 2: Hoare triple {82#true} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0; {82#true} is VALID [2018-12-18 17:52:16,102 INFO L273 TraceCheckUtils]: 3: Hoare triple {82#true} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647;main_~B~6 := main_~B~6[main_~i~6 % 4294967296 := main_#t~nondet4];havoc main_#t~nondet4;assume !!(main_~B~6[main_~i~6 % 4294967296] <= 1000000);main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 + 1;havoc main_#t~post3; {82#true} is VALID [2018-12-18 17:52:16,105 INFO L273 TraceCheckUtils]: 4: Hoare triple {82#true} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0; {85#(= ULTIMATE.start_main_~i~6 (* 4294967296 (div ULTIMATE.start_main_~i~6 4294967296)))} is VALID [2018-12-18 17:52:16,107 INFO L273 TraceCheckUtils]: 5: Hoare triple {85#(= ULTIMATE.start_main_~i~6 (* 4294967296 (div ULTIMATE.start_main_~i~6 4294967296)))} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~C~6 := main_~C~6[main_~i~6 % 4294967296 := main_~A~6[main_~i~6 % 4294967296] + main_~B~6[main_~i~6 % 4294967296]];main_#t~post5 := main_~i~6;main_~i~6 := main_#t~post5 + 1;havoc main_#t~post5; {86#(= (select ULTIMATE.start_main_~C~6 0) (+ (select ULTIMATE.start_main_~B~6 0) (select ULTIMATE.start_main_~A~6 0)))} is VALID [2018-12-18 17:52:16,109 INFO L273 TraceCheckUtils]: 6: Hoare triple {86#(= (select ULTIMATE.start_main_~C~6 0) (+ (select ULTIMATE.start_main_~B~6 0) (select ULTIMATE.start_main_~A~6 0)))} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0;assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);__VERIFIER_assert_#in~cond := (if main_~C~6[main_~i~6 % 4294967296] == main_~A~6[main_~i~6 % 4294967296] + main_~B~6[main_~i~6 % 4294967296] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {83#false} is VALID [2018-12-18 17:52:16,109 INFO L273 TraceCheckUtils]: 7: Hoare triple {83#false} assume !false; {83#false} is VALID [2018-12-18 17:52:16,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-18 17:52:16,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:16,111 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-18 17:52:16,112 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 9 with the following transitions: [2018-12-18 17:52:16,114 INFO L207 CegarAbsIntRunner]: [0], [5], [7], [12], [14], [19], [21], [23] [2018-12-18 17:52:16,156 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-18 17:52:16,157 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-18 17:52:16,726 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-18 17:52:16,728 INFO L272 AbstractInterpreter]: Visited 8 different actions 24 times. Merged at 3 different actions 8 times. Never widened. Performed 314 root evaluator evaluations with a maximum evaluation depth of 5. Performed 314 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 11 fixpoints after 6 different actions. Largest state had 0 variables. [2018-12-18 17:52:16,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-18 17:52:16,736 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-18 17:52:16,737 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-18 17:52:16,737 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-18 17:52:16,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-18 17:52:16,750 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-18 17:52:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-18 17:52:16,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-18 17:52:17,136 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:17,164 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:17,208 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:17,208 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:1 [2018-12-18 17:52:17,211 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:17,212 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~A~6_8, v_ULTIMATE.start_main_~i~6_17, |v_ULTIMATE.start_main_#t~nondet2_4|]. (and (<= 0 v_ULTIMATE.start_main_~i~6_17) (= (store v_ULTIMATE.start_main_~A~6_8 (mod v_ULTIMATE.start_main_~i~6_17 4294967296) |v_ULTIMATE.start_main_#t~nondet2_4|) ULTIMATE.start_main_~A~6) (<= v_ULTIMATE.start_main_~i~6_17 0)) [2018-12-18 17:52:17,212 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. true [2018-12-18 17:52:17,335 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-12-18 17:52:17,338 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:17,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:17,423 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:1 [2018-12-18 17:52:17,433 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:17,433 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~B~6_8, v_ULTIMATE.start_main_~i~6_18, |v_ULTIMATE.start_main_#t~nondet4_4|]. (and (<= 0 v_ULTIMATE.start_main_~i~6_18) (= (store v_ULTIMATE.start_main_~B~6_8 (mod v_ULTIMATE.start_main_~i~6_18 4294967296) |v_ULTIMATE.start_main_#t~nondet4_4|) ULTIMATE.start_main_~B~6) (<= v_ULTIMATE.start_main_~i~6_18 0)) [2018-12-18 17:52:17,433 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ []. true [2018-12-18 17:52:17,571 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-12-18 17:52:17,592 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:17,643 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-12-18 17:52:17,644 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:24 [2018-12-18 17:52:17,652 WARN L383 uantifierElimination]: Trying to double check SDD result, but SMT solver's response was UNKNOWN. [2018-12-18 17:52:17,652 WARN L384 uantifierElimination]: Input elimination task: ∃ [v_ULTIMATE.start_main_~i~6_19, v_ULTIMATE.start_main_~C~6_7]. (and (<= v_ULTIMATE.start_main_~i~6_19 0) (<= 0 v_ULTIMATE.start_main_~i~6_19) (= (let ((.cse0 (mod v_ULTIMATE.start_main_~i~6_19 4294967296))) (store v_ULTIMATE.start_main_~C~6_7 .cse0 (+ (select ULTIMATE.start_main_~B~6 .cse0) (select ULTIMATE.start_main_~A~6 .cse0)))) ULTIMATE.start_main_~C~6)) [2018-12-18 17:52:17,653 WARN L385 uantifierElimination]: ElimStorePlain result: ∃ [v_ULTIMATE.start_main_~i~6_19]. (and (<= v_ULTIMATE.start_main_~i~6_19 0) (<= 0 v_ULTIMATE.start_main_~i~6_19) (let ((.cse0 (mod v_ULTIMATE.start_main_~i~6_19 4294967296))) (= (+ (select ULTIMATE.start_main_~B~6 .cse0) (select ULTIMATE.start_main_~A~6 .cse0)) (select ULTIMATE.start_main_~C~6 .cse0)))) [2018-12-18 17:52:17,692 INFO L273 TraceCheckUtils]: 0: Hoare triple {82#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~nondet4, main_#t~post3, main_#t~post5, main_#t~post6, main_~M~6, main_~A~6, main_~B~6, main_~C~6, main_~i~6;main_~M~6 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~A~6;havoc main_~B~6;havoc main_~C~6;havoc main_~i~6;main_~i~6 := 0; {84#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2018-12-18 17:52:17,693 INFO L273 TraceCheckUtils]: 1: Hoare triple {84#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;main_~A~6 := main_~A~6[main_~i~6 % 4294967296 := main_#t~nondet2];havoc main_#t~nondet2;assume !!(main_~A~6[main_~i~6 % 4294967296] <= 1000000);main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {82#true} is VALID [2018-12-18 17:52:17,705 INFO L273 TraceCheckUtils]: 2: Hoare triple {82#true} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0; {84#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2018-12-18 17:52:17,705 INFO L273 TraceCheckUtils]: 3: Hoare triple {84#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647;main_~B~6 := main_~B~6[main_~i~6 % 4294967296 := main_#t~nondet4];havoc main_#t~nondet4;assume !!(main_~B~6[main_~i~6 % 4294967296] <= 1000000);main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 + 1;havoc main_#t~post3; {82#true} is VALID [2018-12-18 17:52:17,709 INFO L273 TraceCheckUtils]: 4: Hoare triple {82#true} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0; {84#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} is VALID [2018-12-18 17:52:17,711 INFO L273 TraceCheckUtils]: 5: Hoare triple {84#(and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6))} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~C~6 := main_~C~6[main_~i~6 % 4294967296 := main_~A~6[main_~i~6 % 4294967296] + main_~B~6[main_~i~6 % 4294967296]];main_#t~post5 := main_~i~6;main_~i~6 := main_#t~post5 + 1;havoc main_#t~post5; {86#(= (select ULTIMATE.start_main_~C~6 0) (+ (select ULTIMATE.start_main_~B~6 0) (select ULTIMATE.start_main_~A~6 0)))} is VALID [2018-12-18 17:52:17,712 INFO L273 TraceCheckUtils]: 6: Hoare triple {86#(= (select ULTIMATE.start_main_~C~6 0) (+ (select ULTIMATE.start_main_~B~6 0) (select ULTIMATE.start_main_~A~6 0)))} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0;assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);__VERIFIER_assert_#in~cond := (if main_~C~6[main_~i~6 % 4294967296] == main_~A~6[main_~i~6 % 4294967296] + main_~B~6[main_~i~6 % 4294967296] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {83#false} is VALID [2018-12-18 17:52:17,713 INFO L273 TraceCheckUtils]: 7: Hoare triple {83#false} assume !false; {83#false} is VALID [2018-12-18 17:52:17,713 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 17:52:17,713 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-18 17:52:17,861 INFO L478 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2018-12-18 17:52:17,864 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-12-18 17:52:17,883 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-12-18 17:52:17,883 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:5 [2018-12-18 17:52:17,951 INFO L273 TraceCheckUtils]: 7: Hoare triple {83#false} assume !false; {83#false} is VALID [2018-12-18 17:52:17,954 INFO L273 TraceCheckUtils]: 6: Hoare triple {86#(= (select ULTIMATE.start_main_~C~6 0) (+ (select ULTIMATE.start_main_~B~6 0) (select ULTIMATE.start_main_~A~6 0)))} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0;assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);__VERIFIER_assert_#in~cond := (if main_~C~6[main_~i~6 % 4294967296] == main_~A~6[main_~i~6 % 4294967296] + main_~B~6[main_~i~6 % 4294967296] then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {83#false} is VALID [2018-12-18 17:52:17,955 INFO L273 TraceCheckUtils]: 5: Hoare triple {85#(= ULTIMATE.start_main_~i~6 (* 4294967296 (div ULTIMATE.start_main_~i~6 4294967296)))} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~C~6 := main_~C~6[main_~i~6 % 4294967296 := main_~A~6[main_~i~6 % 4294967296] + main_~B~6[main_~i~6 % 4294967296]];main_#t~post5 := main_~i~6;main_~i~6 := main_#t~post5 + 1;havoc main_#t~post5; {86#(= (select ULTIMATE.start_main_~C~6 0) (+ (select ULTIMATE.start_main_~B~6 0) (select ULTIMATE.start_main_~A~6 0)))} is VALID [2018-12-18 17:52:17,956 INFO L273 TraceCheckUtils]: 4: Hoare triple {82#true} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0; {85#(= ULTIMATE.start_main_~i~6 (* 4294967296 (div ULTIMATE.start_main_~i~6 4294967296)))} is VALID [2018-12-18 17:52:17,956 INFO L273 TraceCheckUtils]: 3: Hoare triple {82#true} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);assume -2147483648 <= main_#t~nondet4 && main_#t~nondet4 <= 2147483647;main_~B~6 := main_~B~6[main_~i~6 % 4294967296 := main_#t~nondet4];havoc main_#t~nondet4;assume !!(main_~B~6[main_~i~6 % 4294967296] <= 1000000);main_#t~post3 := main_~i~6;main_~i~6 := main_#t~post3 + 1;havoc main_#t~post3; {82#true} is VALID [2018-12-18 17:52:17,956 INFO L273 TraceCheckUtils]: 2: Hoare triple {82#true} assume !(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);main_~i~6 := 0; {82#true} is VALID [2018-12-18 17:52:17,957 INFO L273 TraceCheckUtils]: 1: Hoare triple {82#true} assume !!(main_~i~6 % 4294967296 < main_~M~6 % 4294967296);assume -2147483648 <= main_#t~nondet2 && main_#t~nondet2 <= 2147483647;main_~A~6 := main_~A~6[main_~i~6 % 4294967296 := main_#t~nondet2];havoc main_#t~nondet2;assume !!(main_~A~6[main_~i~6 % 4294967296] <= 1000000);main_#t~post1 := main_~i~6;main_~i~6 := main_#t~post1 + 1;havoc main_#t~post1; {82#true} is VALID [2018-12-18 17:52:17,957 INFO L273 TraceCheckUtils]: 0: Hoare triple {82#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet2, main_#t~post1, main_#t~nondet4, main_#t~post3, main_#t~post5, main_#t~post6, main_~M~6, main_~A~6, main_~B~6, main_~C~6, main_~i~6;main_~M~6 := main_#t~nondet0;havoc main_#t~nondet0;havoc main_~A~6;havoc main_~B~6;havoc main_~C~6;havoc main_~i~6;main_~i~6 := 0; {82#true} is VALID [2018-12-18 17:52:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-18 17:52:17,993 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-18 17:52:17,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 5 [2018-12-18 17:52:17,993 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-18 17:52:17,994 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-12-18 17:52:17,994 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-12-18 17:52:17,995 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-12-18 17:52:18,042 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:18,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-18 17:52:18,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-18 17:52:18,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-18 17:52:18,043 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 5 states. [2018-12-18 17:52:18,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:18,155 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2018-12-18 17:52:18,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-18 17:52:18,156 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-12-18 17:52:18,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-18 17:52:18,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-18 17:52:18,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-12-18 17:52:18,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-18 17:52:18,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-12-18 17:52:18,159 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 11 transitions. [2018-12-18 17:52:18,190 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-12-18 17:52:18,191 INFO L225 Difference]: With dead ends: 9 [2018-12-18 17:52:18,191 INFO L226 Difference]: Without dead ends: 0 [2018-12-18 17:52:18,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 6 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-18 17:52:18,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-18 17:52:18,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-18 17:52:18,193 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-12-18 17:52:18,193 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:18,193 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:18,193 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:18,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:18,194 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-18 17:52:18,194 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-18 17:52:18,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:18,194 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:18,194 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:18,194 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-12-18 17:52:18,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-18 17:52:18,195 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-12-18 17:52:18,195 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-18 17:52:18,195 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:18,195 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-12-18 17:52:18,196 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-12-18 17:52:18,196 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-12-18 17:52:18,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-18 17:52:18,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-18 17:52:18,196 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-12-18 17:52:18,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-18 17:52:18,197 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-18 17:52:18,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-18 17:52:18,197 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-18 17:52:18,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-18 17:52:18,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-18 17:52:18,261 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 92) no Hoare annotation was computed. [2018-12-18 17:52:18,261 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 1 92) no Hoare annotation was computed. [2018-12-18 17:52:18,262 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 92) no Hoare annotation was computed. [2018-12-18 17:52:18,262 INFO L444 ceAbstractionStarter]: At program point L89(lines 56 89) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~i~6 0) (<= 0 ULTIMATE.start_main_~i~6)) (= (select ULTIMATE.start_main_~C~6 0) (+ (select ULTIMATE.start_main_~B~6 0) (select ULTIMATE.start_main_~A~6 0)))) [2018-12-18 17:52:18,262 INFO L444 ceAbstractionStarter]: At program point L82(lines 82 90) the Hoare annotation is: false [2018-12-18 17:52:18,263 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 91) no Hoare annotation was computed. [2018-12-18 17:52:18,263 INFO L451 ceAbstractionStarter]: At program point L47(lines 28 47) the Hoare annotation is: true [2018-12-18 17:52:18,263 INFO L451 ceAbstractionStarter]: At program point L66(lines 37 66) the Hoare annotation is: true [2018-12-18 17:52:18,264 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-12-18 17:52:18,271 WARN L170 areAnnotationChecker]: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has no Hoare annotation [2018-12-18 17:52:18,271 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-12-18 17:52:18,272 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-12-18 17:52:18,272 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-12-18 17:52:18,278 INFO L202 PluginConnector]: Adding new model sum_array.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 05:52:18 BoogieIcfgContainer [2018-12-18 17:52:18,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-18 17:52:18,279 INFO L168 Benchmark]: Toolchain (without parser) took 5783.25 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 621.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -562.2 MB). Peak memory consumption was 59.6 MB. Max. memory is 7.1 GB. [2018-12-18 17:52:18,280 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-18 17:52:18,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-18 17:52:18,282 INFO L168 Benchmark]: Boogie Preprocessor took 35.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-12-18 17:52:18,282 INFO L168 Benchmark]: RCFGBuilder took 528.93 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-12-18 17:52:18,283 INFO L168 Benchmark]: TraceAbstraction took 5165.77 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 621.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -583.3 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2018-12-18 17:52:18,287 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 35.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 528.93 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5165.77 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 621.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -583.3 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: true - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: true - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: (main_~i~6 <= 0 && 0 <= main_~i~6) || main_~C~6[0] == main_~B~6[0] + main_~A~6[0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. SAFE Result, 5.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 3 SDs, 0 SdLazy, 30 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.6s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 22 HoareAnnotationTreeSize, 4 FomulaSimplifications, 14 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 697 SizeOfPredicates, 7 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 3/9 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...