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/veris.c_NetBSD-libc__loop.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a9d37a5-m [2019-02-28 13:04:59,548 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-02-28 13:04:59,550 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-02-28 13:04:59,563 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-02-28 13:04:59,596 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 [2019-02-28 13:04:59,624 INFO L110 SettingsManager]: Loading preferences was successful [2019-02-28 13:04:59,624 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-02-28 13:04:59,625 INFO L131 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2019-02-28 13:04:59,625 INFO L133 SettingsManager]: * Show backtranslation warnings=false [2019-02-28 13:04:59,625 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-02-28 13:04:59,626 INFO L133 SettingsManager]: * User list type=DISABLED [2019-02-28 13:04:59,626 INFO L133 SettingsManager]: * Inline calls to unimplemented procedures=true [2019-02-28 13:04:59,626 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-02-28 13:04:59,626 INFO L133 SettingsManager]: * Explicit value domain=true [2019-02-28 13:04:59,626 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-02-28 13:04:59,627 INFO L133 SettingsManager]: * Octagon Domain=false [2019-02-28 13:04:59,627 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2019-02-28 13:04:59,627 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-02-28 13:04:59,628 INFO L133 SettingsManager]: * Interval Domain=false [2019-02-28 13:04:59,628 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-02-28 13:04:59,629 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-02-28 13:04:59,629 INFO L133 SettingsManager]: * Use SBE=true [2019-02-28 13:04:59,629 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-02-28 13:04:59,629 INFO L133 SettingsManager]: * sizeof long=4 [2019-02-28 13:04:59,629 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-02-28 13:04:59,630 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-02-28 13:04:59,631 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-02-28 13:04:59,631 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-02-28 13:04:59,631 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-02-28 13:04:59,631 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-02-28 13:04:59,631 INFO L133 SettingsManager]: * sizeof long double=12 [2019-02-28 13:04:59,632 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-02-28 13:04:59,632 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-02-28 13:04:59,632 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-02-28 13:04:59,633 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-02-28 13:04:59,633 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-02-28 13:04:59,633 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:16092 -smt2 -in -t:200000 [2019-02-28 13:04:59,633 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-02-28 13:04:59,633 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-02-28 13:04:59,633 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-02-28 13:04:59,634 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-02-28 13:04:59,634 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-02-28 13:04:59,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:16092 -smt2 -in [2019-02-28 13:04:59,634 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-02-28 13:04:59,634 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-02-28 13:04:59,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-02-28 13:04:59,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-02-28 13:04:59,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-02-28 13:04:59,702 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-02-28 13:04:59,703 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2019-02-28 13:04:59,704 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl [2019-02-28 13:04:59,704 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl' [2019-02-28 13:04:59,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-02-28 13:04:59,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-02-28 13:04:59,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-02-28 13:04:59,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-02-28 13:04:59,775 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-02-28 13:04:59,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-02-28 13:04:59,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-02-28 13:04:59,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-02-28 13:04:59,819 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-02-28 13:04:59,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/1) ... [2019-02-28 13:04:59,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-02-28 13:04:59,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-02-28 13:04:59,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-02-28 13:04:59,847 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-02-28 13:04:59,853 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (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:16092 -smt2 -in -t:200000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:16092 -smt2 -in -t:200000 [2019-02-28 13:04:59,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-02-28 13:04:59,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-02-28 13:05:00,304 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-02-28 13:05:00,305 INFO L286 CfgBuilder]: Removed 1 assue(true) statements. [2019-02-28 13:05:00,306 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.02 01:05:00 BoogieIcfgContainer [2019-02-28 13:05:00,306 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-02-28 13:05:00,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-02-28 13:05:00,308 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-02-28 13:05:00,311 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-02-28 13:05:00,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.02 01:04:59" (1/2) ... [2019-02-28 13:05:00,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cb7222 and model type veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.02 01:05:00, skipping insertion in model container [2019-02-28 13:05:00,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.02 01:05:00" (2/2) ... [2019-02-28 13:05:00,314 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop.i_2.bpl [2019-02-28 13:05:00,324 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-02-28 13:05:00,333 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-02-28 13:05:00,359 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-02-28 13:05:00,397 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-02-28 13:05:00,398 INFO L383 AbstractCegarLoop]: Hoare is true [2019-02-28 13:05:00,398 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-02-28 13:05:00,398 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-02-28 13:05:00,398 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-02-28 13:05:00,399 INFO L387 AbstractCegarLoop]: Difference is false [2019-02-28 13:05:00,399 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-02-28 13:05:00,399 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-02-28 13:05:00,417 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-02-28 13:05:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-02-28 13:05:00,429 INFO L394 BasicCegarLoop]: Found error trace [2019-02-28 13:05:00,430 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-02-28 13:05:00,433 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-02-28 13:05:00,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-28 13:05:00,442 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2019-02-28 13:05:00,444 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-28 13:05:00,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-28 13:05:00,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-28 13:05:00,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-28 13:05:00,500 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-28 13:05:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-28 13:05:00,922 WARN L181 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-02-28 13:05:01,039 INFO L273 TraceCheckUtils]: 0: Hoare triple {10#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~tmp.base, ~tmp.offset := 0, 0;havoc main_#res;havoc main_#t~ret2, main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := 8;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_~#pathbuf~6.base, main_~#pathbuf~6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;main_~bound~6.base, main_~bound~6.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;~tmp.base, ~tmp.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset, glob2_#in~pathlim.base, glob2_#in~pathlim.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;havoc glob2_#res;havoc glob2_#t~post0.base, glob2_#t~post0.offset, glob2_~pathbuf.base, glob2_~pathbuf.offset, glob2_~pathlim.base, glob2_~pathlim.offset, glob2_~p~4.base, glob2_~p~4.offset;glob2_~pathbuf.base, glob2_~pathbuf.offset := glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset;glob2_~pathlim.base, glob2_~pathlim.offset := glob2_#in~pathlim.base, glob2_#in~pathlim.offset;havoc glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_~pathbuf.base, glob2_~pathbuf.offset; {12#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} is VALID [2019-02-28 13:05:01,053 INFO L273 TraceCheckUtils]: 1: Hoare triple {12#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {13#(= ULTIMATE.start___VERIFIER_assert_~cond 1)} is VALID [2019-02-28 13:05:01,067 INFO L273 TraceCheckUtils]: 2: Hoare triple {13#(= ULTIMATE.start___VERIFIER_assert_~cond 1)} assume __VERIFIER_assert_~cond == 0;assume !false; {11#false} is VALID [2019-02-28 13:05:01,068 INFO L273 TraceCheckUtils]: 3: Hoare triple {11#false} assume !false; {11#false} is VALID [2019-02-28 13:05:01,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-28 13:05:01,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-28 13:05:01,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-02-28 13:05:01,072 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-28 13:05:01,078 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-02-28 13:05:01,080 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-28 13:05:01,083 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2019-02-28 13:05:01,113 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-28 13:05:01,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-02-28 13:05:01,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-02-28 13:05:01,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-02-28 13:05:01,123 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2019-02-28 13:05:01,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:01,381 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-02-28 13:05:01,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-02-28 13:05:01,381 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-02-28 13:05:01,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-28 13:05:01,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-28 13:05:01,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2019-02-28 13:05:01,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-02-28 13:05:01,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2019-02-28 13:05:01,390 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 13 transitions. [2019-02-28 13:05:01,561 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-28 13:05:01,572 INFO L225 Difference]: With dead ends: 12 [2019-02-28 13:05:01,573 INFO L226 Difference]: Without dead ends: 8 [2019-02-28 13:05:01,576 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-02-28 13:05:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-02-28 13:05:01,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-02-28 13:05:01,630 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-28 13:05:01,630 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand 7 states. [2019-02-28 13:05:01,631 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 7 states. [2019-02-28 13:05:01,631 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 7 states. [2019-02-28 13:05:01,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:01,633 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-02-28 13:05:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-02-28 13:05:01,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-28 13:05:01,633 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-28 13:05:01,634 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 8 states. [2019-02-28 13:05:01,634 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 8 states. [2019-02-28 13:05:01,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:01,636 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-02-28 13:05:01,636 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-02-28 13:05:01,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-28 13:05:01,636 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-28 13:05:01,637 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-28 13:05:01,637 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-28 13:05:01,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-02-28 13:05:01,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-02-28 13:05:01,640 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2019-02-28 13:05:01,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-28 13:05:01,640 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-02-28 13:05:01,640 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-02-28 13:05:01,641 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-02-28 13:05:01,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-02-28 13:05:01,641 INFO L394 BasicCegarLoop]: Found error trace [2019-02-28 13:05:01,641 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2019-02-28 13:05:01,642 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-02-28 13:05:01,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-28 13:05:01,642 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2019-02-28 13:05:01,642 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-28 13:05:01,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-28 13:05:01,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-28 13:05:01,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-28 13:05:01,644 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-28 13:05:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-28 13:05:01,954 INFO L273 TraceCheckUtils]: 0: Hoare triple {65#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~tmp.base, ~tmp.offset := 0, 0;havoc main_#res;havoc main_#t~ret2, main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := 8;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_~#pathbuf~6.base, main_~#pathbuf~6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;main_~bound~6.base, main_~bound~6.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;~tmp.base, ~tmp.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset, glob2_#in~pathlim.base, glob2_#in~pathlim.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;havoc glob2_#res;havoc glob2_#t~post0.base, glob2_#t~post0.offset, glob2_~pathbuf.base, glob2_~pathbuf.offset, glob2_~pathlim.base, glob2_~pathlim.offset, glob2_~p~4.base, glob2_~p~4.offset;glob2_~pathbuf.base, glob2_~pathbuf.offset := glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset;glob2_~pathlim.base, glob2_~pathlim.offset := glob2_#in~pathlim.base, glob2_#in~pathlim.offset;havoc glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_~pathbuf.base, glob2_~pathbuf.offset; {67#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} is VALID [2019-02-28 13:05:01,956 INFO L273 TraceCheckUtils]: 1: Hoare triple {67#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {68#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (or (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start___VERIFIER_assert_~cond 1)) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} is VALID [2019-02-28 13:05:01,959 INFO L273 TraceCheckUtils]: 2: Hoare triple {68#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (or (= 0 ULTIMATE.start___VERIFIER_assert_~cond) (= ULTIMATE.start___VERIFIER_assert_~cond 1)) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} assume !(__VERIFIER_assert_~cond == 0);write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 1, glob2_~p~4.base, glob2_~p~4.offset, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_#t~post0.base, glob2_#t~post0.offset + 4;havoc glob2_#t~post0.base, glob2_#t~post0.offset; {69#(and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} is VALID [2019-02-28 13:05:01,961 INFO L273 TraceCheckUtils]: 3: Hoare triple {69#(and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {70#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2019-02-28 13:05:01,962 INFO L273 TraceCheckUtils]: 4: Hoare triple {70#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume __VERIFIER_assert_~cond == 0;assume !false; {66#false} is VALID [2019-02-28 13:05:01,962 INFO L273 TraceCheckUtils]: 5: Hoare triple {66#false} assume !false; {66#false} is VALID [2019-02-28 13:05:01,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-28 13:05:01,963 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-28 13:05:01,964 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-02-28 13:05:01,964 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 7 with the following transitions: [2019-02-28 13:05:01,966 INFO L207 CegarAbsIntRunner]: [0], [2], [6], [8], [10] [2019-02-28 13:05:02,004 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-02-28 13:05:02,004 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2019-02-28 13:05:02,458 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-02-28 13:05:02,459 INFO L272 AbstractInterpreter]: Visited 5 different actions 17 times. Merged at 4 different actions 12 times. Widened at 1 different actions 1 times. Performed 268 root evaluator evaluations with a maximum evaluation depth of 5. Performed 268 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 1 fixpoints after 1 different actions. Largest state had 0 variables. [2019-02-28 13:05:02,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-28 13:05:02,466 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-02-28 13:05:02,466 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-02-28 13:05:02,466 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 [2019-02-28 13:05:02,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-28 13:05:02,478 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-02-28 13:05:02,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-28 13:05:02,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 26 conjunts are in the unsatisfiable core [2019-02-28 13:05:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-28 13:05:02,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-02-28 13:05:02,829 WARN L181 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 12 [2019-02-28 13:05:03,251 INFO L273 TraceCheckUtils]: 0: Hoare triple {65#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~tmp.base, ~tmp.offset := 0, 0;havoc main_#res;havoc main_#t~ret2, main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := 8;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_~#pathbuf~6.base, main_~#pathbuf~6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;main_~bound~6.base, main_~bound~6.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;~tmp.base, ~tmp.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset, glob2_#in~pathlim.base, glob2_#in~pathlim.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;havoc glob2_#res;havoc glob2_#t~post0.base, glob2_#t~post0.offset, glob2_~pathbuf.base, glob2_~pathbuf.offset, glob2_~pathlim.base, glob2_~pathlim.offset, glob2_~p~4.base, glob2_~p~4.offset;glob2_~pathbuf.base, glob2_~pathbuf.offset := glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset;glob2_~pathlim.base, glob2_~pathlim.offset := glob2_#in~pathlim.base, glob2_#in~pathlim.offset;havoc glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_~pathbuf.base, glob2_~pathbuf.offset; {67#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} is VALID [2019-02-28 13:05:03,252 INFO L273 TraceCheckUtils]: 1: Hoare triple {67#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {77#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} is VALID [2019-02-28 13:05:03,253 INFO L273 TraceCheckUtils]: 2: Hoare triple {77#(and (<= (+ ULTIMATE.start_glob2_~p~4.offset 4) ~tmp.offset) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} assume !(__VERIFIER_assert_~cond == 0);write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 1, glob2_~p~4.base, glob2_~p~4.offset, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_#t~post0.base, glob2_#t~post0.offset + 4;havoc glob2_#t~post0.base, glob2_#t~post0.offset; {69#(and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} is VALID [2019-02-28 13:05:03,255 INFO L273 TraceCheckUtils]: 3: Hoare triple {69#(and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {84#(= 1 ULTIMATE.start___VERIFIER_assert_~cond)} is VALID [2019-02-28 13:05:03,256 INFO L273 TraceCheckUtils]: 4: Hoare triple {84#(= 1 ULTIMATE.start___VERIFIER_assert_~cond)} assume __VERIFIER_assert_~cond == 0;assume !false; {66#false} is VALID [2019-02-28 13:05:03,256 INFO L273 TraceCheckUtils]: 5: Hoare triple {66#false} assume !false; {66#false} is VALID [2019-02-28 13:05:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-28 13:05:03,258 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-02-28 13:05:03,439 INFO L273 TraceCheckUtils]: 5: Hoare triple {66#false} assume !false; {66#false} is VALID [2019-02-28 13:05:03,440 INFO L273 TraceCheckUtils]: 4: Hoare triple {70#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume __VERIFIER_assert_~cond == 0;assume !false; {66#false} is VALID [2019-02-28 13:05:03,443 INFO L273 TraceCheckUtils]: 3: Hoare triple {69#(and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {70#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2019-02-28 13:05:03,445 INFO L273 TraceCheckUtils]: 2: Hoare triple {100#(or (and (< (+ ULTIMATE.start_glob2_~p~4.offset 3) ~tmp.offset) (= ULTIMATE.start_glob2_~p~4.base ~tmp.base)) (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume !(__VERIFIER_assert_~cond == 0);write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 1, glob2_~p~4.base, glob2_~p~4.offset, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_#t~post0.base, glob2_#t~post0.offset + 4;havoc glob2_#t~post0.base, glob2_#t~post0.offset; {69#(and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))} is VALID [2019-02-28 13:05:03,447 INFO L273 TraceCheckUtils]: 1: Hoare triple {104#(or (< (+ ULTIMATE.start_glob2_~p~4.offset 3) ~tmp.offset) (not (= ULTIMATE.start_glob2_~p~4.base ~tmp.base)) (< ~tmp.offset ULTIMATE.start_glob2_~p~4.offset))} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {100#(or (and (< (+ ULTIMATE.start_glob2_~p~4.offset 3) ~tmp.offset) (= ULTIMATE.start_glob2_~p~4.base ~tmp.base)) (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2019-02-28 13:05:03,449 INFO L273 TraceCheckUtils]: 0: Hoare triple {65#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~tmp.base, ~tmp.offset := 0, 0;havoc main_#res;havoc main_#t~ret2, main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := 8;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_~#pathbuf~6.base, main_~#pathbuf~6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;main_~bound~6.base, main_~bound~6.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;~tmp.base, ~tmp.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset, glob2_#in~pathlim.base, glob2_#in~pathlim.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;havoc glob2_#res;havoc glob2_#t~post0.base, glob2_#t~post0.offset, glob2_~pathbuf.base, glob2_~pathbuf.offset, glob2_~pathlim.base, glob2_~pathlim.offset, glob2_~p~4.base, glob2_~p~4.offset;glob2_~pathbuf.base, glob2_~pathbuf.offset := glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset;glob2_~pathlim.base, glob2_~pathlim.offset := glob2_#in~pathlim.base, glob2_#in~pathlim.offset;havoc glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_~pathbuf.base, glob2_~pathbuf.offset; {104#(or (< (+ ULTIMATE.start_glob2_~p~4.offset 3) ~tmp.offset) (not (= ULTIMATE.start_glob2_~p~4.base ~tmp.base)) (< ~tmp.offset ULTIMATE.start_glob2_~p~4.offset))} is VALID [2019-02-28 13:05:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-28 13:05:03,472 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-02-28 13:05:03,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2019-02-28 13:05:03,473 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-02-28 13:05:03,477 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2019-02-28 13:05:03,477 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-28 13:05:03,477 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2019-02-28 13:05:03,494 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-28 13:05:03,494 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-02-28 13:05:03,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-02-28 13:05:03,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-02-28 13:05:03,496 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2019-02-28 13:05:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:03,622 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-02-28 13:05:03,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-02-28 13:05:03,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2019-02-28 13:05:03,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-28 13:05:03,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-02-28 13:05:03,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-02-28 13:05:03,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-02-28 13:05:03,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 12 transitions. [2019-02-28 13:05:03,627 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 12 transitions. [2019-02-28 13:05:03,641 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-28 13:05:03,643 INFO L225 Difference]: With dead ends: 12 [2019-02-28 13:05:03,643 INFO L226 Difference]: Without dead ends: 10 [2019-02-28 13:05:03,644 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2019-02-28 13:05:03,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-02-28 13:05:03,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2019-02-28 13:05:03,677 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-28 13:05:03,678 INFO L82 GeneralOperation]: Start isEquivalent. First operand 10 states. Second operand 9 states. [2019-02-28 13:05:03,678 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states. Second operand 9 states. [2019-02-28 13:05:03,678 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 9 states. [2019-02-28 13:05:03,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:03,679 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-02-28 13:05:03,679 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-02-28 13:05:03,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-28 13:05:03,679 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-28 13:05:03,680 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 10 states. [2019-02-28 13:05:03,680 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 10 states. [2019-02-28 13:05:03,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:03,681 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-02-28 13:05:03,681 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-02-28 13:05:03,682 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-28 13:05:03,682 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-28 13:05:03,682 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-28 13:05:03,682 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-28 13:05:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-02-28 13:05:03,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-02-28 13:05:03,683 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2019-02-28 13:05:03,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-28 13:05:03,683 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-02-28 13:05:03,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-02-28 13:05:03,683 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-02-28 13:05:03,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-02-28 13:05:03,684 INFO L394 BasicCegarLoop]: Found error trace [2019-02-28 13:05:03,684 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2019-02-28 13:05:03,684 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-02-28 13:05:03,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-02-28 13:05:03,684 INFO L82 PathProgramCache]: Analyzing trace with hash 141355773, now seen corresponding path program 2 times [2019-02-28 13:05:03,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-02-28 13:05:03,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-28 13:05:03,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-02-28 13:05:03,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-02-28 13:05:03,686 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-02-28 13:05:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-02-28 13:05:03,840 INFO L273 TraceCheckUtils]: 0: Hoare triple {166#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~tmp.base, ~tmp.offset := 0, 0;havoc main_#res;havoc main_#t~ret2, main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;#Ultimate.alloc_old_#length, #Ultimate.alloc_old_#valid := #length, #valid;#Ultimate.alloc_~size := 8;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_~#pathbuf~6.base, main_~#pathbuf~6.offset := #Ultimate.alloc_#res.base, #Ultimate.alloc_#res.offset;main_~bound~6.base, main_~bound~6.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;~tmp.base, ~tmp.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset + 8 - 4;glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset, glob2_#in~pathlim.base, glob2_#in~pathlim.offset := main_~#pathbuf~6.base, main_~#pathbuf~6.offset, main_~bound~6.base, main_~bound~6.offset;havoc glob2_#res;havoc glob2_#t~post0.base, glob2_#t~post0.offset, glob2_~pathbuf.base, glob2_~pathbuf.offset, glob2_~pathlim.base, glob2_~pathlim.offset, glob2_~p~4.base, glob2_~p~4.offset;glob2_~pathbuf.base, glob2_~pathbuf.offset := glob2_#in~pathbuf.base, glob2_#in~pathbuf.offset;glob2_~pathlim.base, glob2_~pathlim.offset := glob2_#in~pathlim.base, glob2_#in~pathlim.offset;havoc glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_~pathbuf.base, glob2_~pathbuf.offset; {168#(<= ULTIMATE.start_glob2_~pathlim.offset (+ ULTIMATE.start_glob2_~p~4.offset 4))} is VALID [2019-02-28 13:05:03,850 INFO L273 TraceCheckUtils]: 1: Hoare triple {168#(<= ULTIMATE.start_glob2_~pathlim.offset (+ ULTIMATE.start_glob2_~p~4.offset 4))} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {168#(<= ULTIMATE.start_glob2_~pathlim.offset (+ ULTIMATE.start_glob2_~p~4.offset 4))} is VALID [2019-02-28 13:05:03,851 INFO L273 TraceCheckUtils]: 2: Hoare triple {168#(<= ULTIMATE.start_glob2_~pathlim.offset (+ ULTIMATE.start_glob2_~p~4.offset 4))} assume !(__VERIFIER_assert_~cond == 0);write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 1, glob2_~p~4.base, glob2_~p~4.offset, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_#t~post0.base, glob2_#t~post0.offset + 4;havoc glob2_#t~post0.base, glob2_#t~post0.offset; {169#(<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~4.offset)} is VALID [2019-02-28 13:05:03,851 INFO L273 TraceCheckUtils]: 3: Hoare triple {169#(<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~4.offset)} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {169#(<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~4.offset)} is VALID [2019-02-28 13:05:03,852 INFO L273 TraceCheckUtils]: 4: Hoare triple {169#(<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~4.offset)} assume !(__VERIFIER_assert_~cond == 0);write~int_old_#memory_int := #memory_int;write~int_#value, write~int_#ptr.base, write~int_#ptr.offset, write~int_#sizeOfWrittenType := 1, glob2_~p~4.base, glob2_~p~4.offset, 4;havoc #memory_int;assume #memory_int == write~int_old_#memory_int[write~int_#ptr.base,write~int_#ptr.offset := write~int_#value];glob2_#t~post0.base, glob2_#t~post0.offset := glob2_~p~4.base, glob2_~p~4.offset;glob2_~p~4.base, glob2_~p~4.offset := glob2_#t~post0.base, glob2_#t~post0.offset + 4;havoc glob2_#t~post0.base, glob2_#t~post0.offset; {170#(<= (+ ULTIMATE.start_glob2_~pathlim.offset 4) ULTIMATE.start_glob2_~p~4.offset)} is VALID [2019-02-28 13:05:03,853 INFO L273 TraceCheckUtils]: 5: Hoare triple {170#(<= (+ ULTIMATE.start_glob2_~pathlim.offset 4) ULTIMATE.start_glob2_~p~4.offset)} assume !!(glob2_~p~4.base == glob2_~pathlim.base && glob2_~p~4.offset <= glob2_~pathlim.offset);__VERIFIER_assert_#in~cond := (if glob2_~p~4.base == ~tmp.base && glob2_~p~4.offset <= ~tmp.offset then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {167#false} is VALID [2019-02-28 13:05:03,853 INFO L273 TraceCheckUtils]: 6: Hoare triple {167#false} assume __VERIFIER_assert_~cond == 0;assume !false; {167#false} is VALID [2019-02-28 13:05:03,854 INFO L273 TraceCheckUtils]: 7: Hoare triple {167#false} assume !false; {167#false} is VALID [2019-02-28 13:05:03,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-02-28 13:05:03,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-02-28 13:05:03,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-02-28 13:05:03,855 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-02-28 13:05:03,855 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-02-28 13:05:03,856 INFO L84 Accepts]: Finished accepts. word is accepted. [2019-02-28 13:05:03,856 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2019-02-28 13:05:03,879 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-28 13:05:03,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-02-28 13:05:03,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-02-28 13:05:03,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-02-28 13:05:03,880 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2019-02-28 13:05:03,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:03,956 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-02-28 13:05:03,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-02-28 13:05:03,956 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-02-28 13:05:03,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-02-28 13:05:03,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-02-28 13:05:03,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-02-28 13:05:03,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-02-28 13:05:03,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2019-02-28 13:05:03,959 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 10 transitions. [2019-02-28 13:05:03,974 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2019-02-28 13:05:03,975 INFO L225 Difference]: With dead ends: 10 [2019-02-28 13:05:03,975 INFO L226 Difference]: Without dead ends: 0 [2019-02-28 13:05:03,976 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-02-28 13:05:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-02-28 13:05:03,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-02-28 13:05:03,977 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2019-02-28 13:05:03,977 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2019-02-28 13:05:03,977 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2019-02-28 13:05:03,977 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2019-02-28 13:05:03,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:03,977 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-02-28 13:05:03,978 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-02-28 13:05:03,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-28 13:05:03,978 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-28 13:05:03,978 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2019-02-28 13:05:03,978 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2019-02-28 13:05:03,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-02-28 13:05:03,979 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-02-28 13:05:03,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-02-28 13:05:03,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-28 13:05:03,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2019-02-28 13:05:03,979 INFO L88 GeneralOperation]: Finished isEquivalent. [2019-02-28 13:05:03,979 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2019-02-28 13:05:03,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-02-28 13:05:03,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-02-28 13:05:03,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-02-28 13:05:03,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-02-28 13:05:03,980 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-02-28 13:05:03,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-02-28 13:05:03,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-02-28 13:05:03,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-02-28 13:05:03,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-02-28 13:05:04,191 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 12 83) no Hoare annotation was computed. [2019-02-28 13:05:04,192 INFO L444 ceAbstractionStarter]: At program point L64(lines 64 77) the Hoare annotation is: (let ((.cse1 (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))) (or (let ((.cse0 (+ ULTIMATE.start_glob2_~p~4.offset 4))) (and (<= .cse0 ~tmp.offset) (= ULTIMATE.start___VERIFIER_assert_~cond 1) (<= ULTIMATE.start_glob2_~pathlim.offset .cse0) .cse1)) (and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~4.offset) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1))) [2019-02-28 13:05:04,192 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 12 83) no Hoare annotation was computed. [2019-02-28 13:05:04,192 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 12 83) no Hoare annotation was computed. [2019-02-28 13:05:04,193 INFO L444 ceAbstractionStarter]: At program point L80(lines 80 81) the Hoare annotation is: false [2019-02-28 13:05:04,193 INFO L444 ceAbstractionStarter]: At program point L76(lines 57 76) the Hoare annotation is: (let ((.cse1 (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))) (or (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= (+ ULTIMATE.start_glob2_~pathlim.offset 4) ULTIMATE.start_glob2_~p~4.offset)) (let ((.cse0 (+ ULTIMATE.start_glob2_~p~4.offset 4))) (and (<= .cse0 ~tmp.offset) (<= ULTIMATE.start_glob2_~pathlim.offset .cse0) .cse1)) (and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~4.offset) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) .cse1))) [2019-02-28 13:05:04,193 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 82) no Hoare annotation was computed. [2019-02-28 13:05:04,195 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2019-02-28 13:05:04,234 WARN L170 areAnnotationChecker]: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT has no Hoare annotation [2019-02-28 13:05:04,234 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2019-02-28 13:05:04,235 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2019-02-28 13:05:04,235 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. [2019-02-28 13:05:04,243 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.02 01:05:04 BoogieIcfgContainer [2019-02-28 13:05:04,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-02-28 13:05:04,245 INFO L168 Benchmark]: Toolchain (without parser) took 4472.40 ms. Allocated memory was 135.3 MB in the beginning and 221.8 MB in the end (delta: 86.5 MB). Free memory was 110.4 MB in the beginning and 102.9 MB in the end (delta: 7.6 MB). Peak memory consumption was 94.1 MB. Max. memory is 7.1 GB. [2019-02-28 13:05:04,247 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 135.3 MB. Free memory is still 111.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-02-28 13:05:04,248 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 135.3 MB. Free memory was 110.2 MB in the beginning and 108.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-02-28 13:05:04,249 INFO L168 Benchmark]: Boogie Preprocessor took 27.78 ms. Allocated memory is still 135.3 MB. Free memory was 108.5 MB in the beginning and 107.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-02-28 13:05:04,250 INFO L168 Benchmark]: RCFGBuilder took 459.87 ms. Allocated memory is still 135.3 MB. Free memory was 107.2 MB in the beginning and 93.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-02-28 13:05:04,251 INFO L168 Benchmark]: TraceAbstraction took 3936.41 ms. Allocated memory was 135.3 MB in the beginning and 221.8 MB in the end (delta: 86.5 MB). Free memory was 93.4 MB in the beginning and 102.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2019-02-28 13:05:04,256 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 0.21 ms. Allocated memory is still 135.3 MB. Free memory is still 111.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 135.3 MB. Free memory was 110.2 MB in the beginning and 108.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.78 ms. Allocated memory is still 135.3 MB. Free memory was 108.5 MB in the beginning and 107.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 459.87 ms. Allocated memory is still 135.3 MB. Free memory was 107.2 MB in the beginning and 93.6 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3936.41 ms. Allocated memory was 135.3 MB in the beginning and 221.8 MB in the end (delta: 86.5 MB). Free memory was 93.4 MB in the beginning and 102.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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: 64]: Loop Invariant Derived loop invariant: (((glob2_~p~4.offset + 4 <= ~tmp.offset && __VERIFIER_assert_~cond == 1) && glob2_~pathlim.offset <= glob2_~p~4.offset + 4) && ~tmp.base == glob2_~p~4.base) || (((glob2_~p~4.offset <= ~tmp.offset && glob2_~pathlim.offset <= glob2_~p~4.offset) && 1 == __VERIFIER_assert_~cond) && ~tmp.base == glob2_~p~4.base) - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((!(0 == __VERIFIER_assert_~cond) && glob2_~pathlim.offset + 4 <= glob2_~p~4.offset) || ((glob2_~p~4.offset + 4 <= ~tmp.offset && glob2_~pathlim.offset <= glob2_~p~4.offset + 4) && ~tmp.base == glob2_~p~4.base)) || (((glob2_~p~4.offset <= ~tmp.offset && glob2_~pathlim.offset <= glob2_~p~4.offset) && 1 == __VERIFIER_assert_~cond) && ~tmp.base == glob2_~p~4.base) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 12 SDs, 0 SdLazy, 28 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 70 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 735 SizeOfPredicates, 14 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...