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/linear_sea.ch.i_4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fa1c628-m [2019-01-31 14:30:58,453 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-31 14:30:58,455 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-31 14:30:58,469 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-01-31 14:30:58,509 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 [2019-01-31 14:30:58,521 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-31 14:30:58,521 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-31 14:30:58,522 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-01-31 14:30:58,522 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-01-31 14:30:58,523 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-01-31 14:30:58,523 INFO L133 SettingsManager]: * User list type=DISABLED [2019-01-31 14:30:58,523 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-01-31 14:30:58,523 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-01-31 14:30:58,523 INFO L133 SettingsManager]: * Explicit value domain=true [2019-01-31 14:30:58,524 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-01-31 14:30:58,524 INFO L133 SettingsManager]: * Octagon Domain=false [2019-01-31 14:30:58,524 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-01-31 14:30:58,524 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-01-31 14:30:58,524 INFO L133 SettingsManager]: * Interval Domain=false [2019-01-31 14:30:58,525 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-31 14:30:58,525 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-31 14:30:58,525 INFO L133 SettingsManager]: * Use SBE=true [2019-01-31 14:30:58,525 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-31 14:30:58,526 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-31 14:30:58,526 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-31 14:30:58,526 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-31 14:30:58,526 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-31 14:30:58,526 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-31 14:30:58,527 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-31 14:30:58,527 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-31 14:30:58,527 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-31 14:30:58,527 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-31 14:30:58,527 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-31 14:30:58,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-31 14:30:58,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-31 14:30:58,528 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-31 14:30:58,528 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 14:30:58,528 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-31 14:30:58,528 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-31 14:30:58,529 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-31 14:30:58,529 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-01-31 14:30:58,529 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-31 14:30:58,529 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in [2019-01-31 14:30:58,529 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-01-31 14:30:58,530 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-01-31 14:30:58,558 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-31 14:30:58,570 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-31 14:30:58,574 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-31 14:30:58,576 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-01-31 14:30:58,576 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-01-31 14:30:58,577 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/linear_sea.ch.i_4.bpl [2019-01-31 14:30:58,577 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/linear_sea.ch.i_4.bpl' [2019-01-31 14:30:58,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-31 14:30:58,631 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-01-31 14:30:58,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-31 14:30:58,632 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-31 14:30:58,632 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-31 14:30:58,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-31 14:30:58,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-31 14:30:58,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-31 14:30:58,670 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-31 14:30:58,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,684 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/1) ... [2019-01-31 14:30:58,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-31 14:30:58,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-31 14:30:58,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-31 14:30:58,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-31 14:30:58,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (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:8092 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:8092 -smt2 -in -t:10000 [2019-01-31 14:30:58,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-31 14:30:58,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-31 14:30:59,255 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-31 14:30:59,255 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-01-31 14:30:59,257 INFO L202 PluginConnector]: Adding new model linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:30:59 BoogieIcfgContainer [2019-01-31 14:30:59,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-31 14:30:59,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-31 14:30:59,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-31 14:30:59,261 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-31 14:30:59,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 31.01 02:30:58" (1/2) ... [2019-01-31 14:30:59,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37ab969e and model type linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.01 02:30:59, skipping insertion in model container [2019-01-31 14:30:59,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.01 02:30:59" (2/2) ... [2019-01-31 14:30:59,265 INFO L112 eAbstractionObserver]: Analyzing ICFG linear_sea.ch.i_4.bpl [2019-01-31 14:30:59,274 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-31 14:30:59,282 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-31 14:30:59,299 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-31 14:30:59,334 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-31 14:30:59,334 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-31 14:30:59,334 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-31 14:30:59,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-31 14:30:59,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-31 14:30:59,335 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-31 14:30:59,335 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-31 14:30:59,335 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-31 14:30:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-01-31 14:30:59,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-01-31 14:30:59,357 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:30:59,358 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-01-31 14:30:59,361 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:30:59,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:30:59,367 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2019-01-31 14:30:59,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:30:59,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:30:59,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:30:59,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:30:59,422 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:30:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:00,139 WARN L181 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 10 [2019-01-31 14:31:00,367 INFO L273 TraceCheckUtils]: 0: Hoare triple {10#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~SIZE := 0;havoc main_#res;havoc main_#t~nondet3, main_#t~ret5, main_~#a~7.base, main_~#a~7.offset;~SIZE := (if main_#t~nondet3 % 4294967296 < 0 && main_#t~nondet3 % 4294967296 % 8 != 0 then main_#t~nondet3 % 4294967296 / 8 + 1 else main_#t~nondet3 % 4294967296 / 8) + 1;havoc main_#t~nondet3;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := ~SIZE % 4294967296 * 4;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_~#a~7.base, main_~#a~7.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 3, main_~#a~7.base, main_~#a~7.offset + (if ~SIZE % 4294967296 < 0 && ~SIZE % 4294967296 % 2 != 0 then ~SIZE % 4294967296 / 2 + 1 else ~SIZE % 4294967296 / 2) % 4294967296 * 4, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];linear_search_#in~a.base, linear_search_#in~a.offset, linear_search_#in~n, linear_search_#in~q := main_~#a~7.base, main_~#a~7.offset, (if ~SIZE % 4294967296 % 4294967296 <= 2147483647 then ~SIZE % 4294967296 % 4294967296 else ~SIZE % 4294967296 % 4294967296 - 4294967296), 3;havoc linear_search_#res;havoc linear_search_#t~post2, linear_search_#t~mem0, linear_search_#t~short1, linear_search_~a.base, linear_search_~a.offset, linear_search_~n, linear_search_~q, linear_search_~j~5;linear_search_~a.base, linear_search_~a.offset := linear_search_#in~a.base, linear_search_#in~a.offset;linear_search_~n := linear_search_#in~n;linear_search_~q := linear_search_#in~q;linear_search_~j~5 := 0; {12#(and (<= (div ~SIZE 4294967296) (div ULTIMATE.start_linear_search_~j~5 4294967296)) (<= (+ ULTIMATE.start_linear_search_~j~5 1) ~SIZE))} is VALID [2019-01-31 14:31:00,383 INFO L273 TraceCheckUtils]: 1: Hoare triple {12#(and (<= (div ~SIZE 4294967296) (div ULTIMATE.start_linear_search_~j~5 4294967296)) (<= (+ ULTIMATE.start_linear_search_~j~5 1) ~SIZE))} linear_search_#t~short1 := linear_search_~j~5 % 4294967296 < linear_search_~n % 4294967296;assume linear_search_#t~short1;read~int_#ptr.base, read~int_#ptr.offset, read~int_#sizeOfReadType := linear_search_~a.base, linear_search_~a.offset + linear_search_~j~5 % 4294967296 * 4, 4;havoc read~int_#value;assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];linear_search_#t~mem0 := read~int_#value;linear_search_#t~short1 := linear_search_#t~mem0 != linear_search_~q; {12#(and (<= (div ~SIZE 4294967296) (div ULTIMATE.start_linear_search_~j~5 4294967296)) (<= (+ ULTIMATE.start_linear_search_~j~5 1) ~SIZE))} is VALID [2019-01-31 14:31:00,396 INFO L273 TraceCheckUtils]: 2: Hoare triple {12#(and (<= (div ~SIZE 4294967296) (div ULTIMATE.start_linear_search_~j~5 4294967296)) (<= (+ ULTIMATE.start_linear_search_~j~5 1) ~SIZE))} assume !linear_search_#t~short1;havoc linear_search_#t~mem0;havoc linear_search_#t~short1;assume !(linear_search_~j~5 % 4294967296 < ~SIZE % 4294967296);linear_search_#res := 0;main_#t~ret5 := linear_search_#res;assume -2147483648 <= main_#t~ret5 && main_#t~ret5 <= 2147483647;__VERIFIER_assert_#in~cond := main_#t~ret5;havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {11#false} is VALID [2019-01-31 14:31:00,397 INFO L273 TraceCheckUtils]: 3: Hoare triple {11#false} assume !false; {11#false} is VALID [2019-01-31 14:31:00,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-31 14:31:00,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-31 14:31:00,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-31 14:31:00,401 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-01-31 14:31:00,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-31 14:31:00,407 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:00,410 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2019-01-31 14:31:00,437 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:00,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-31 14:31:00,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-31 14:31:00,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-31 14:31:00,450 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-01-31 14:31:00,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:00,595 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2019-01-31 14:31:00,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-31 14:31:00,596 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-01-31 14:31:00,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:00,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-31 14:31:00,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-01-31 14:31:00,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-31 14:31:00,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2019-01-31 14:31:00,608 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 12 transitions. [2019-01-31 14:31:00,672 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:00,683 INFO L225 Difference]: With dead ends: 11 [2019-01-31 14:31:00,683 INFO L226 Difference]: Without dead ends: 7 [2019-01-31 14:31:00,687 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-31 14:31:00,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-01-31 14:31:00,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-31 14:31:00,847 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:00,848 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states. Second operand 7 states. [2019-01-31 14:31:00,849 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 7 states. [2019-01-31 14:31:00,849 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 7 states. [2019-01-31 14:31:00,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:00,853 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-01-31 14:31:00,853 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-31 14:31:00,853 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:00,854 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:00,854 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 7 states. [2019-01-31 14:31:00,855 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 7 states. [2019-01-31 14:31:00,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:00,858 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-01-31 14:31:00,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-31 14:31:00,860 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:00,860 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:00,862 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:00,862 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:00,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-31 14:31:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-01-31 14:31:00,867 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-01-31 14:31:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:00,867 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-01-31 14:31:00,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-31 14:31:00,868 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-01-31 14:31:00,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-31 14:31:00,868 INFO L394 BasicCegarLoop]: Found error trace [2019-01-31 14:31:00,869 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-01-31 14:31:00,869 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-01-31 14:31:00,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:00,870 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2019-01-31 14:31:00,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-01-31 14:31:00,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:00,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:00,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-31 14:31:00,873 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-01-31 14:31:00,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:01,728 WARN L181 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 16 [2019-01-31 14:31:02,067 INFO L273 TraceCheckUtils]: 0: Hoare triple {58#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~SIZE := 0;havoc main_#res;havoc main_#t~nondet3, main_#t~ret5, main_~#a~7.base, main_~#a~7.offset;~SIZE := (if main_#t~nondet3 % 4294967296 < 0 && main_#t~nondet3 % 4294967296 % 8 != 0 then main_#t~nondet3 % 4294967296 / 8 + 1 else main_#t~nondet3 % 4294967296 / 8) + 1;havoc main_#t~nondet3;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := ~SIZE % 4294967296 * 4;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_~#a~7.base, main_~#a~7.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 3, main_~#a~7.base, main_~#a~7.offset + (if ~SIZE % 4294967296 < 0 && ~SIZE % 4294967296 % 2 != 0 then ~SIZE % 4294967296 / 2 + 1 else ~SIZE % 4294967296 / 2) % 4294967296 * 4, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];linear_search_#in~a.base, linear_search_#in~a.offset, linear_search_#in~n, linear_search_#in~q := main_~#a~7.base, main_~#a~7.offset, (if ~SIZE % 4294967296 % 4294967296 <= 2147483647 then ~SIZE % 4294967296 % 4294967296 else ~SIZE % 4294967296 % 4294967296 - 4294967296), 3;havoc linear_search_#res;havoc linear_search_#t~post2, linear_search_#t~mem0, linear_search_#t~short1, linear_search_~a.base, linear_search_~a.offset, linear_search_~n, linear_search_~q, linear_search_~j~5;linear_search_~a.base, linear_search_~a.offset := linear_search_#in~a.base, linear_search_#in~a.offset;linear_search_~n := linear_search_#in~n;linear_search_~q := linear_search_#in~q;linear_search_~j~5 := 0; {60#(and (<= ~SIZE 536870912) (= ~SIZE (+ (* 4294967296 (div ~SIZE 4294967296)) ULTIMATE.start_linear_search_~n)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) (div ~SIZE 4294967296) 1)))} is VALID [2019-01-31 14:31:02,070 INFO L273 TraceCheckUtils]: 1: Hoare triple {60#(and (<= ~SIZE 536870912) (= ~SIZE (+ (* 4294967296 (div ~SIZE 4294967296)) ULTIMATE.start_linear_search_~n)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) (div ~SIZE 4294967296) 1)))} linear_search_#t~short1 := linear_search_~j~5 % 4294967296 < linear_search_~n % 4294967296;assume linear_search_#t~short1;read~int_#ptr.base, read~int_#ptr.offset, read~int_#sizeOfReadType := linear_search_~a.base, linear_search_~a.offset + linear_search_~j~5 % 4294967296 * 4, 4;havoc read~int_#value;assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];linear_search_#t~mem0 := read~int_#value;linear_search_#t~short1 := linear_search_#t~mem0 != linear_search_~q; {60#(and (<= ~SIZE 536870912) (= ~SIZE (+ (* 4294967296 (div ~SIZE 4294967296)) ULTIMATE.start_linear_search_~n)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) (div ~SIZE 4294967296) 1)))} is VALID [2019-01-31 14:31:02,072 INFO L273 TraceCheckUtils]: 2: Hoare triple {60#(and (<= ~SIZE 536870912) (= ~SIZE (+ (* 4294967296 (div ~SIZE 4294967296)) ULTIMATE.start_linear_search_~n)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) (div ~SIZE 4294967296) 1)))} assume !!linear_search_#t~short1;havoc linear_search_#t~mem0;havoc linear_search_#t~short1;linear_search_#t~post2 := linear_search_~j~5;linear_search_~j~5 := linear_search_#t~post2 + 1;havoc linear_search_#t~post2; {60#(and (<= ~SIZE 536870912) (= ~SIZE (+ (* 4294967296 (div ~SIZE 4294967296)) ULTIMATE.start_linear_search_~n)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) (div ~SIZE 4294967296) 1)))} is VALID [2019-01-31 14:31:02,073 INFO L273 TraceCheckUtils]: 3: Hoare triple {60#(and (<= ~SIZE 536870912) (= ~SIZE (+ (* 4294967296 (div ~SIZE 4294967296)) ULTIMATE.start_linear_search_~n)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) (div ~SIZE 4294967296) 1)))} linear_search_#t~short1 := linear_search_~j~5 % 4294967296 < linear_search_~n % 4294967296;assume linear_search_#t~short1;read~int_#ptr.base, read~int_#ptr.offset, read~int_#sizeOfReadType := linear_search_~a.base, linear_search_~a.offset + linear_search_~j~5 % 4294967296 * 4, 4;havoc read~int_#value;assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];linear_search_#t~mem0 := read~int_#value;linear_search_#t~short1 := linear_search_#t~mem0 != linear_search_~q; {61#(and (<= ~SIZE 536870912) (<= (+ ULTIMATE.start_linear_search_~j~5 (* 4294967296 (div ~SIZE 4294967296)) 1) (+ (* 4294967296 (div ULTIMATE.start_linear_search_~j~5 4294967296)) ~SIZE)))} is VALID [2019-01-31 14:31:02,078 INFO L273 TraceCheckUtils]: 4: Hoare triple {61#(and (<= ~SIZE 536870912) (<= (+ ULTIMATE.start_linear_search_~j~5 (* 4294967296 (div ~SIZE 4294967296)) 1) (+ (* 4294967296 (div ULTIMATE.start_linear_search_~j~5 4294967296)) ~SIZE)))} assume !linear_search_#t~short1;havoc linear_search_#t~mem0;havoc linear_search_#t~short1;assume !(linear_search_~j~5 % 4294967296 < ~SIZE % 4294967296);linear_search_#res := 0;main_#t~ret5 := linear_search_#res;assume -2147483648 <= main_#t~ret5 && main_#t~ret5 <= 2147483647;__VERIFIER_assert_#in~cond := main_#t~ret5;havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {59#false} is VALID [2019-01-31 14:31:02,079 INFO L273 TraceCheckUtils]: 5: Hoare triple {59#false} assume !false; {59#false} is VALID [2019-01-31 14:31:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-31 14:31:02,081 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:02,081 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-01-31 14:31:02,082 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2019-01-31 14:31:02,084 INFO L207 CegarAbsIntRunner]: [0], [2], [6], [8], [10] [2019-01-31 14:31:02,122 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-01-31 14:31:02,122 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-01-31 14:31:02,685 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-01-31 14:31:02,686 INFO L272 AbstractInterpreter]: Visited 5 different actions 17 times. Merged at 4 different actions 12 times. Widened at 1 different actions 1 times. Performed 328 root evaluator evaluations with a maximum evaluation depth of 9. Performed 328 inverse root evaluator evaluations with a maximum inverse evaluation depth of 9. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-01-31 14:31:02,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-31 14:31:02,692 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-01-31 14:31:02,692 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-31 14:31:02,692 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 [2019-01-31 14:31:02,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-31 14:31:02,702 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-01-31 14:31:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:02,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-31 14:31:02,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-31 14:31:03,154 INFO L273 TraceCheckUtils]: 0: Hoare triple {58#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~SIZE := 0;havoc main_#res;havoc main_#t~nondet3, main_#t~ret5, main_~#a~7.base, main_~#a~7.offset;~SIZE := (if main_#t~nondet3 % 4294967296 < 0 && main_#t~nondet3 % 4294967296 % 8 != 0 then main_#t~nondet3 % 4294967296 / 8 + 1 else main_#t~nondet3 % 4294967296 / 8) + 1;havoc main_#t~nondet3;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := ~SIZE % 4294967296 * 4;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_~#a~7.base, main_~#a~7.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 3, main_~#a~7.base, main_~#a~7.offset + (if ~SIZE % 4294967296 < 0 && ~SIZE % 4294967296 % 2 != 0 then ~SIZE % 4294967296 / 2 + 1 else ~SIZE % 4294967296 / 2) % 4294967296 * 4, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];linear_search_#in~a.base, linear_search_#in~a.offset, linear_search_#in~n, linear_search_#in~q := main_~#a~7.base, main_~#a~7.offset, (if ~SIZE % 4294967296 % 4294967296 <= 2147483647 then ~SIZE % 4294967296 % 4294967296 else ~SIZE % 4294967296 % 4294967296 - 4294967296), 3;havoc linear_search_#res;havoc linear_search_#t~post2, linear_search_#t~mem0, linear_search_#t~short1, linear_search_~a.base, linear_search_~a.offset, linear_search_~n, linear_search_~q, linear_search_~j~5;linear_search_~a.base, linear_search_~a.offset := linear_search_#in~a.base, linear_search_#in~a.offset;linear_search_~n := linear_search_#in~n;linear_search_~q := linear_search_#in~q;linear_search_~j~5 := 0; {65#(or (and (= (+ ULTIMATE.start_linear_search_~n 4294967296) (mod ~SIZE 4294967296)) (< 2147483647 (mod ~SIZE 4294967296))) (and (= (mod ~SIZE 4294967296) ULTIMATE.start_linear_search_~n) (<= (mod ~SIZE 4294967296) 2147483647)))} is VALID [2019-01-31 14:31:03,156 INFO L273 TraceCheckUtils]: 1: Hoare triple {65#(or (and (= (+ ULTIMATE.start_linear_search_~n 4294967296) (mod ~SIZE 4294967296)) (< 2147483647 (mod ~SIZE 4294967296))) (and (= (mod ~SIZE 4294967296) ULTIMATE.start_linear_search_~n) (<= (mod ~SIZE 4294967296) 2147483647)))} linear_search_#t~short1 := linear_search_~j~5 % 4294967296 < linear_search_~n % 4294967296;assume linear_search_#t~short1;read~int_#ptr.base, read~int_#ptr.offset, read~int_#sizeOfReadType := linear_search_~a.base, linear_search_~a.offset + linear_search_~j~5 % 4294967296 * 4, 4;havoc read~int_#value;assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];linear_search_#t~mem0 := read~int_#value;linear_search_#t~short1 := linear_search_#t~mem0 != linear_search_~q; {65#(or (and (= (+ ULTIMATE.start_linear_search_~n 4294967296) (mod ~SIZE 4294967296)) (< 2147483647 (mod ~SIZE 4294967296))) (and (= (mod ~SIZE 4294967296) ULTIMATE.start_linear_search_~n) (<= (mod ~SIZE 4294967296) 2147483647)))} is VALID [2019-01-31 14:31:03,161 INFO L273 TraceCheckUtils]: 2: Hoare triple {65#(or (and (= (+ ULTIMATE.start_linear_search_~n 4294967296) (mod ~SIZE 4294967296)) (< 2147483647 (mod ~SIZE 4294967296))) (and (= (mod ~SIZE 4294967296) ULTIMATE.start_linear_search_~n) (<= (mod ~SIZE 4294967296) 2147483647)))} assume !!linear_search_#t~short1;havoc linear_search_#t~mem0;havoc linear_search_#t~short1;linear_search_#t~post2 := linear_search_~j~5;linear_search_~j~5 := linear_search_#t~post2 + 1;havoc linear_search_#t~post2; {65#(or (and (= (+ ULTIMATE.start_linear_search_~n 4294967296) (mod ~SIZE 4294967296)) (< 2147483647 (mod ~SIZE 4294967296))) (and (= (mod ~SIZE 4294967296) ULTIMATE.start_linear_search_~n) (<= (mod ~SIZE 4294967296) 2147483647)))} is VALID [2019-01-31 14:31:03,163 INFO L273 TraceCheckUtils]: 3: Hoare triple {65#(or (and (= (+ ULTIMATE.start_linear_search_~n 4294967296) (mod ~SIZE 4294967296)) (< 2147483647 (mod ~SIZE 4294967296))) (and (= (mod ~SIZE 4294967296) ULTIMATE.start_linear_search_~n) (<= (mod ~SIZE 4294967296) 2147483647)))} linear_search_#t~short1 := linear_search_~j~5 % 4294967296 < linear_search_~n % 4294967296;assume linear_search_#t~short1;read~int_#ptr.base, read~int_#ptr.offset, read~int_#sizeOfReadType := linear_search_~a.base, linear_search_~a.offset + linear_search_~j~5 % 4294967296 * 4, 4;havoc read~int_#value;assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];linear_search_#t~mem0 := read~int_#value;linear_search_#t~short1 := linear_search_#t~mem0 != linear_search_~q; {75#(< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))} is VALID [2019-01-31 14:31:03,167 INFO L273 TraceCheckUtils]: 4: Hoare triple {75#(< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))} assume !linear_search_#t~short1;havoc linear_search_#t~mem0;havoc linear_search_#t~short1;assume !(linear_search_~j~5 % 4294967296 < ~SIZE % 4294967296);linear_search_#res := 0;main_#t~ret5 := linear_search_#res;assume -2147483648 <= main_#t~ret5 && main_#t~ret5 <= 2147483647;__VERIFIER_assert_#in~cond := main_#t~ret5;havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {59#false} is VALID [2019-01-31 14:31:03,167 INFO L273 TraceCheckUtils]: 5: Hoare triple {59#false} assume !false; {59#false} is VALID [2019-01-31 14:31:03,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-31 14:31:03,168 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2019-01-31 14:31:03,362 INFO L273 TraceCheckUtils]: 5: Hoare triple {59#false} assume !false; {59#false} is VALID [2019-01-31 14:31:03,363 INFO L273 TraceCheckUtils]: 4: Hoare triple {75#(< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))} assume !linear_search_#t~short1;havoc linear_search_#t~mem0;havoc linear_search_#t~short1;assume !(linear_search_~j~5 % 4294967296 < ~SIZE % 4294967296);linear_search_#res := 0;main_#t~ret5 := linear_search_#res;assume -2147483648 <= main_#t~ret5 && main_#t~ret5 <= 2147483647;__VERIFIER_assert_#in~cond := main_#t~ret5;havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond;assume __VERIFIER_assert_~cond == 0;assume !false; {59#false} is VALID [2019-01-31 14:31:03,365 INFO L273 TraceCheckUtils]: 3: Hoare triple {88#(forall ((ULTIMATE.start_linear_search_~j~5 Int)) (or (<= (mod ULTIMATE.start_linear_search_~n 4294967296) (mod ULTIMATE.start_linear_search_~j~5 4294967296)) (< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))))} linear_search_#t~short1 := linear_search_~j~5 % 4294967296 < linear_search_~n % 4294967296;assume linear_search_#t~short1;read~int_#ptr.base, read~int_#ptr.offset, read~int_#sizeOfReadType := linear_search_~a.base, linear_search_~a.offset + linear_search_~j~5 % 4294967296 * 4, 4;havoc read~int_#value;assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];linear_search_#t~mem0 := read~int_#value;linear_search_#t~short1 := linear_search_#t~mem0 != linear_search_~q; {75#(< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))} is VALID [2019-01-31 14:31:03,368 INFO L273 TraceCheckUtils]: 2: Hoare triple {88#(forall ((ULTIMATE.start_linear_search_~j~5 Int)) (or (<= (mod ULTIMATE.start_linear_search_~n 4294967296) (mod ULTIMATE.start_linear_search_~j~5 4294967296)) (< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))))} assume !!linear_search_#t~short1;havoc linear_search_#t~mem0;havoc linear_search_#t~short1;linear_search_#t~post2 := linear_search_~j~5;linear_search_~j~5 := linear_search_#t~post2 + 1;havoc linear_search_#t~post2; {88#(forall ((ULTIMATE.start_linear_search_~j~5 Int)) (or (<= (mod ULTIMATE.start_linear_search_~n 4294967296) (mod ULTIMATE.start_linear_search_~j~5 4294967296)) (< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))))} is VALID [2019-01-31 14:31:03,369 INFO L273 TraceCheckUtils]: 1: Hoare triple {88#(forall ((ULTIMATE.start_linear_search_~j~5 Int)) (or (<= (mod ULTIMATE.start_linear_search_~n 4294967296) (mod ULTIMATE.start_linear_search_~j~5 4294967296)) (< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))))} linear_search_#t~short1 := linear_search_~j~5 % 4294967296 < linear_search_~n % 4294967296;assume linear_search_#t~short1;read~int_#ptr.base, read~int_#ptr.offset, read~int_#sizeOfReadType := linear_search_~a.base, linear_search_~a.offset + linear_search_~j~5 % 4294967296 * 4, 4;havoc read~int_#value;assume read~int_#value == #memory_int[read~int_#ptr.base,read~int_#ptr.offset];linear_search_#t~mem0 := read~int_#value;linear_search_#t~short1 := linear_search_#t~mem0 != linear_search_~q; {88#(forall ((ULTIMATE.start_linear_search_~j~5 Int)) (or (<= (mod ULTIMATE.start_linear_search_~n 4294967296) (mod ULTIMATE.start_linear_search_~j~5 4294967296)) (< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))))} is VALID [2019-01-31 14:31:03,375 INFO L273 TraceCheckUtils]: 0: Hoare triple {58#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~SIZE := 0;havoc main_#res;havoc main_#t~nondet3, main_#t~ret5, main_~#a~7.base, main_~#a~7.offset;~SIZE := (if main_#t~nondet3 % 4294967296 < 0 && main_#t~nondet3 % 4294967296 % 8 != 0 then main_#t~nondet3 % 4294967296 / 8 + 1 else main_#t~nondet3 % 4294967296 / 8) + 1;havoc main_#t~nondet3;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := ~SIZE % 4294967296 * 4;havoc #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;havoc #valid, #length;assume #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base] == 0;assume #valid == #Ultimate.alloc_old_#valid[#Ultimate.alloc_#res.base := 1];assume #Ultimate.alloc_#res.offset == 0;assume #Ultimate.alloc_#res.base != 0;assume #length == #Ultimate.alloc_old_#length[#Ultimate.alloc_#res.base := #Ultimate.alloc_~size];main_~#a~7.base, main_~#a~7.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 3, main_~#a~7.base, main_~#a~7.offset + (if ~SIZE % 4294967296 < 0 && ~SIZE % 4294967296 % 2 != 0 then ~SIZE % 4294967296 / 2 + 1 else ~SIZE % 4294967296 / 2) % 4294967296 * 4, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];linear_search_#in~a.base, linear_search_#in~a.offset, linear_search_#in~n, linear_search_#in~q := main_~#a~7.base, main_~#a~7.offset, (if ~SIZE % 4294967296 % 4294967296 <= 2147483647 then ~SIZE % 4294967296 % 4294967296 else ~SIZE % 4294967296 % 4294967296 - 4294967296), 3;havoc linear_search_#res;havoc linear_search_#t~post2, linear_search_#t~mem0, linear_search_#t~short1, linear_search_~a.base, linear_search_~a.offset, linear_search_~n, linear_search_~q, linear_search_~j~5;linear_search_~a.base, linear_search_~a.offset := linear_search_#in~a.base, linear_search_#in~a.offset;linear_search_~n := linear_search_#in~n;linear_search_~q := linear_search_#in~q;linear_search_~j~5 := 0; {88#(forall ((ULTIMATE.start_linear_search_~j~5 Int)) (or (<= (mod ULTIMATE.start_linear_search_~n 4294967296) (mod ULTIMATE.start_linear_search_~j~5 4294967296)) (< (mod ULTIMATE.start_linear_search_~j~5 4294967296) (mod ~SIZE 4294967296))))} is VALID [2019-01-31 14:31:03,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-31 14:31:03,407 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-01-31 14:31:03,407 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2019-01-31 14:31:03,407 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-01-31 14:31:03,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-01-31 14:31:03,409 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-01-31 14:31:03,409 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2019-01-31 14:31:03,572 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:03,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-31 14:31:03,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-31 14:31:03,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-01-31 14:31:03,576 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 6 states. [2019-01-31 14:31:03,866 WARN L181 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2019-01-31 14:31:03,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:03,996 INFO L93 Difference]: Finished difference Result 7 states and 7 transitions. [2019-01-31 14:31:03,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-31 14:31:03,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2019-01-31 14:31:03,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-31 14:31:03,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-31 14:31:03,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-01-31 14:31:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-01-31 14:31:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2019-01-31 14:31:04,000 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 6 transitions. [2019-01-31 14:31:04,020 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-01-31 14:31:04,020 INFO L225 Difference]: With dead ends: 7 [2019-01-31 14:31:04,020 INFO L226 Difference]: Without dead ends: 0 [2019-01-31 14:31:04,021 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-31 14:31:04,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-31 14:31:04,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-31 14:31:04,022 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-01-31 14:31:04,022 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2019-01-31 14:31:04,022 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2019-01-31 14:31:04,023 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2019-01-31 14:31:04,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:04,023 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-31 14:31:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-31 14:31:04,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:04,024 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:04,024 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2019-01-31 14:31:04,024 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2019-01-31 14:31:04,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-31 14:31:04,024 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-31 14:31:04,025 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-31 14:31:04,025 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:04,025 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-01-31 14:31:04,025 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-01-31 14:31:04,025 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-01-31 14:31:04,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-31 14:31:04,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-31 14:31:04,026 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-01-31 14:31:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-31 14:31:04,026 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-31 14:31:04,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-31 14:31:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-31 14:31:04,027 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-31 14:31:04,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-31 14:31:04,107 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 11 102) no Hoare annotation was computed. [2019-01-31 14:31:04,107 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 11 102) no Hoare annotation was computed. [2019-01-31 14:31:04,107 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 11 102) no Hoare annotation was computed. [2019-01-31 14:31:04,107 INFO L444 ceAbstractionStarter]: At program point L91(lines 91 100) the Hoare annotation is: false [2019-01-31 14:31:04,108 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 101) no Hoare annotation was computed. [2019-01-31 14:31:04,108 INFO L444 ceAbstractionStarter]: At program point L75(lines 75 92) the Hoare annotation is: (let ((.cse1 (div ~SIZE 4294967296))) (let ((.cse0 (* 4294967296 .cse1))) (and (<= ~SIZE 536870912) (= ~SIZE (+ .cse0 ULTIMATE.start_linear_search_~n)) (<= (+ ULTIMATE.start_linear_search_~j~5 .cse0 1) (+ (* 4294967296 (div ULTIMATE.start_linear_search_~j~5 4294967296)) ~SIZE)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) .cse1 1))))) [2019-01-31 14:31:04,108 INFO L444 ceAbstractionStarter]: At program point L99(lines 65 99) the Hoare annotation is: (let ((.cse0 (div ~SIZE 4294967296))) (and (<= ~SIZE 536870912) (= ~SIZE (+ (* 4294967296 .cse0) ULTIMATE.start_linear_search_~n)) (< 0 (+ (div ULTIMATE.start_linear_search_~n 4294967296) .cse0 1)))) [2019-01-31 14:31:04,109 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2019-01-31 14:31:04,113 WARN L170 areAnnotationChecker]: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has no Hoare annotation [2019-01-31 14:31:04,113 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2019-01-31 14:31:04,113 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2019-01-31 14:31:04,114 INFO L163 areAnnotationChecker]: CFG has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2019-01-31 14:31:04,122 INFO L202 PluginConnector]: Adding new model linear_sea.ch.i_4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.01 02:31:04 BoogieIcfgContainer [2019-01-31 14:31:04,122 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-31 14:31:04,123 INFO L168 Benchmark]: Toolchain (without parser) took 5493.48 ms. Allocated memory was 142.1 MB in the beginning and 224.4 MB in the end (delta: 82.3 MB). Free memory was 109.3 MB in the beginning and 145.0 MB in the end (delta: -35.7 MB). Peak memory consumption was 46.6 MB. Max. memory is 7.1 GB. [2019-01-31 14:31:04,125 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 142.1 MB. Free memory is still 110.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-01-31 14:31:04,125 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.58 ms. Allocated memory is still 142.1 MB. Free memory was 109.1 MB in the beginning and 107.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2019-01-31 14:31:04,126 INFO L168 Benchmark]: Boogie Preprocessor took 24.91 ms. Allocated memory is still 142.1 MB. Free memory was 107.4 MB in the beginning and 106.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-01-31 14:31:04,127 INFO L168 Benchmark]: RCFGBuilder took 562.01 ms. Allocated memory is still 142.1 MB. Free memory was 106.1 MB in the beginning and 91.3 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-01-31 14:31:04,128 INFO L168 Benchmark]: TraceAbstraction took 4864.36 ms. Allocated memory was 142.1 MB in the beginning and 224.4 MB in the end (delta: 82.3 MB). Free memory was 90.9 MB in the beginning and 145.0 MB in the end (delta: -54.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-01-31 14:31:04,132 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 0.17 ms. Allocated memory is still 142.1 MB. Free memory is still 110.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.58 ms. Allocated memory is still 142.1 MB. Free memory was 109.1 MB in the beginning and 107.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.91 ms. Allocated memory is still 142.1 MB. Free memory was 107.4 MB in the beginning and 106.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 562.01 ms. Allocated memory is still 142.1 MB. Free memory was 106.1 MB in the beginning and 91.3 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4864.36 ms. Allocated memory was 142.1 MB in the beginning and 224.4 MB in the end (delta: 82.3 MB). Free memory was 90.9 MB in the beginning and 145.0 MB in the end (delta: -54.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 101]: 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: 75]: Loop Invariant Derived loop invariant: ((~SIZE <= 536870912 && ~SIZE == 4294967296 * (~SIZE / 4294967296) + linear_search_~n) && linear_search_~j~5 + 4294967296 * (~SIZE / 4294967296) + 1 <= 4294967296 * (linear_search_~j~5 / 4294967296) + ~SIZE) && 0 < linear_search_~n / 4294967296 + ~SIZE / 4294967296 + 1 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: (~SIZE <= 536870912 && ~SIZE == 4294967296 * (~SIZE / 4294967296) + linear_search_~n) && 0 < linear_search_~n / 4294967296 + ~SIZE / 4294967296 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 4.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 1 SDs, 0 SdLazy, 8 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 63 HoareAnnotationTreeSize, 3 FomulaSimplifications, 104 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 3 QuantifiedInterpolants, 1226 SizeOfPredicates, 3 NumberOfNonLiveVariables, 93 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...