java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl
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This is Ultimate 0.1.23-00a8621
[2018-09-30 10:29:14,443 INFO L170 SettingsManager]: Resetting all preferences to default values...
[2018-09-30 10:29:14,445 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values
[2018-09-30 10:29:14,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2018-09-30 10:29:14,461 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2018-09-30 10:29:14,462 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2018-09-30 10:29:14,463 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2018-09-30 10:29:14,465 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values
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[2018-09-30 10:29:14,471 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2018-09-30 10:29:14,471 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values
[2018-09-30 10:29:14,472 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2018-09-30 10:29:14,474 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2018-09-30 10:29:14,475 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2018-09-30 10:29:14,481 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2018-09-30 10:29:14,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2018-09-30 10:29:14,486 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2018-09-30 10:29:14,488 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values
[2018-09-30 10:29:14,494 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2018-09-30 10:29:14,495 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2018-09-30 10:29:14,498 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2018-09-30 10:29:14,504 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2018-09-30 10:29:14,504 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2018-09-30 10:29:14,504 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2018-09-30 10:29:14,505 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2018-09-30 10:29:14,507 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values
[2018-09-30 10:29:14,508 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values
[2018-09-30 10:29:14,509 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values
[2018-09-30 10:29:14,510 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2018-09-30 10:29:14,510 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values
[2018-09-30 10:29:14,511 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
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[2018-09-30 10:29:14,511 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values
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[2018-09-30 10:29:14,513 INFO L181 SettingsManager]: Finished resetting all preferences to default values...
[2018-09-30 10:29:14,513 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default.epf
[2018-09-30 10:29:14,528 INFO L110 SettingsManager]: Loading preferences was successful
[2018-09-30 10:29:14,528 INFO L112 SettingsManager]: Preferences different from defaults after loading the file:
[2018-09-30 10:29:14,529 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2018-09-30 10:29:14,529 INFO L133 SettingsManager]: * to procedures, called more than once=true
[2018-09-30 10:29:14,530 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2018-09-30 10:29:14,530 INFO L133 SettingsManager]: * Create parallel compositions if possible=false
[2018-09-30 10:29:14,530 INFO L133 SettingsManager]: * Use SBE=true
[2018-09-30 10:29:14,530 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2018-09-30 10:29:14,531 INFO L133 SettingsManager]: * sizeof long=4
[2018-09-30 10:29:14,531 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true
[2018-09-30 10:29:14,531 INFO L133 SettingsManager]: * sizeof POINTER=4
[2018-09-30 10:29:14,531 INFO L133 SettingsManager]: * Check division by zero=IGNORE
[2018-09-30 10:29:14,531 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2018-09-30 10:29:14,532 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2018-09-30 10:29:14,532 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2018-09-30 10:29:14,532 INFO L133 SettingsManager]: * sizeof long double=12
[2018-09-30 10:29:14,532 INFO L133 SettingsManager]: * Check if freed pointer was valid=false
[2018-09-30 10:29:14,532 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2018-09-30 10:29:14,533 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2018-09-30 10:29:14,533 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements
[2018-09-30 10:29:14,533 INFO L133 SettingsManager]: * To the following directory=./dump/
[2018-09-30 10:29:14,533 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode
[2018-09-30 10:29:14,533 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-09-30 10:29:14,534 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2018-09-30 10:29:14,534 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2018-09-30 10:29:14,534 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2018-09-30 10:29:14,534 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL
[2018-09-30 10:29:14,534 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2018-09-30 10:29:14,535 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2018-09-30 10:29:14,535 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2018-09-30 10:29:14,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2018-09-30 10:29:14,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2018-09-30 10:29:14,613 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2018-09-30 10:29:14,614 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2018-09-30 10:29:14,615 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized
[2018-09-30 10:29:14,616 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl
[2018-09-30 10:29:14,616 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl'
[2018-09-30 10:29:14,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2018-09-30 10:29:14,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2018-09-30 10:29:14,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2018-09-30 10:29:14,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2018-09-30 10:29:14,695 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized
[2018-09-30 10:29:14,714 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,731 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2018-09-30 10:29:14,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2018-09-30 10:29:14,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2018-09-30 10:29:14,741 INFO L276 PluginConnector]: Boogie Preprocessor initialized
[2018-09-30 10:29:14,753 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,753 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,754 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,755 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,759 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,761 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,762 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 30.09 10:29:14" (1/1) ...
[2018-09-30 10:29:14,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2018-09-30 10:29:14,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2018-09-30 10:29:14,765 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2018-09-30 10:29:14,765 INFO L276 PluginConnector]: RCFGBuilder initialized
[2018-09-30 10:29:14,766 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 30.09 10:29:14" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2018-09-30 10:29:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2018-09-30 10:29:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2018-09-30 10:29:15,068 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2018-09-30 10:29:15,068 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.09 10:29:15 BoogieIcfgContainer
[2018-09-30 10:29:15,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2018-09-30 10:29:15,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2018-09-30 10:29:15,070 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2018-09-30 10:29:15,073 INFO L276 PluginConnector]: TraceAbstraction initialized
[2018-09-30 10:29:15,073 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 30.09 10:29:14" (1/2) ...
[2018-09-30 10:29:15,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@325c0fe3 and model type veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:29:15, skipping insertion in model container
[2018-09-30 10:29:15,075 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 30.09 10:29:15" (2/2) ...
[2018-09-30 10:29:15,077 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop.i_2.bpl
[2018-09-30 10:29:15,086 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2018-09-30 10:29:15,094 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2018-09-30 10:29:15,149 INFO L133 ementStrategyFactory]: Using default assertion order modulation
[2018-09-30 10:29:15,150 INFO L381 AbstractCegarLoop]: Interprodecural is true
[2018-09-30 10:29:15,150 INFO L382 AbstractCegarLoop]: Hoare is true
[2018-09-30 10:29:15,150 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP
[2018-09-30 10:29:15,150 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2018-09-30 10:29:15,151 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2018-09-30 10:29:15,151 INFO L386 AbstractCegarLoop]: Difference is false
[2018-09-30 10:29:15,151 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2018-09-30 10:29:15,151 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2018-09-30 10:29:15,167 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states.
[2018-09-30 10:29:15,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5
[2018-09-30 10:29:15,173 INFO L367 BasicCegarLoop]: Found error trace
[2018-09-30 10:29:15,174 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1]
[2018-09-30 10:29:15,175 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-09-30 10:29:15,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-09-30 10:29:15,181 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times
[2018-09-30 10:29:15,184 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-09-30 10:29:15,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-09-30 10:29:15,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:29:15,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-09-30 10:29:15,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:29:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-09-30 10:29:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:29:15,512 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-09-30 10:29:15,512 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2018-09-30 10:29:15,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states
[2018-09-30 10:29:15,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2018-09-30 10:29:15,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2018-09-30 10:29:15,530 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states.
[2018-09-30 10:29:15,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-09-30 10:29:15,649 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions.
[2018-09-30 10:29:15,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2018-09-30 10:29:15,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4
[2018-09-30 10:29:15,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-09-30 10:29:15,668 INFO L225 Difference]: With dead ends: 12
[2018-09-30 10:29:15,668 INFO L226 Difference]: Without dead ends: 8
[2018-09-30 10:29:15,672 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2018-09-30 10:29:15,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states.
[2018-09-30 10:29:15,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7.
[2018-09-30 10:29:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states.
[2018-09-30 10:29:15,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions.
[2018-09-30 10:29:15,706 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4
[2018-09-30 10:29:15,706 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-09-30 10:29:15,706 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions.
[2018-09-30 10:29:15,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2018-09-30 10:29:15,706 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions.
[2018-09-30 10:29:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2018-09-30 10:29:15,707 INFO L367 BasicCegarLoop]: Found error trace
[2018-09-30 10:29:15,707 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1]
[2018-09-30 10:29:15,707 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-09-30 10:29:15,707 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-09-30 10:29:15,708 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times
[2018-09-30 10:29:15,708 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-09-30 10:29:15,708 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-09-30 10:29:15,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:29:15,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-09-30 10:29:15,709 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:29:15,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-09-30 10:29:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:29:15,906 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more.
[2018-09-30 10:29:15,906 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000
[2018-09-30 10:29:15,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-09-30 10:29:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-09-30 10:29:15,963 INFO L273 TraceCheckSpWp]: Computing forward predicates...
[2018-09-30 10:29:16,213 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 12
[2018-09-30 10:29:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:29:16,329 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2018-09-30 10:29:16,330 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2018-09-30 10:29:16,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states
[2018-09-30 10:29:16,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2018-09-30 10:29:16,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2018-09-30 10:29:16,332 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states.
[2018-09-30 10:29:16,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-09-30 10:29:16,566 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions.
[2018-09-30 10:29:16,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2018-09-30 10:29:16,567 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6
[2018-09-30 10:29:16,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-09-30 10:29:16,568 INFO L225 Difference]: With dead ends: 12
[2018-09-30 10:29:16,568 INFO L226 Difference]: Without dead ends: 10
[2018-09-30 10:29:16,570 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72
[2018-09-30 10:29:16,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2018-09-30 10:29:16,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9.
[2018-09-30 10:29:16,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states.
[2018-09-30 10:29:16,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions.
[2018-09-30 10:29:16,574 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6
[2018-09-30 10:29:16,574 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-09-30 10:29:16,574 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions.
[2018-09-30 10:29:16,574 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states.
[2018-09-30 10:29:16,575 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions.
[2018-09-30 10:29:16,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9
[2018-09-30 10:29:16,575 INFO L367 BasicCegarLoop]: Found error trace
[2018-09-30 10:29:16,575 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1]
[2018-09-30 10:29:16,576 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2018-09-30 10:29:16,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier
[2018-09-30 10:29:16,577 INFO L82 PathProgramCache]: Analyzing trace with hash 141355773, now seen corresponding path program 2 times
[2018-09-30 10:29:16,577 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2018-09-30 10:29:16,577 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2018-09-30 10:29:16,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:29:16,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2018-09-30 10:29:16,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2018-09-30 10:29:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2018-09-30 10:29:16,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2018-09-30 10:29:16,686 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2018-09-30 10:29:16,686 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2018-09-30 10:29:16,687 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states
[2018-09-30 10:29:16,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2018-09-30 10:29:16,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20
[2018-09-30 10:29:16,688 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states.
[2018-09-30 10:29:16,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2018-09-30 10:29:16,718 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions.
[2018-09-30 10:29:16,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2018-09-30 10:29:16,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8
[2018-09-30 10:29:16,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2018-09-30 10:29:16,720 INFO L225 Difference]: With dead ends: 10
[2018-09-30 10:29:16,720 INFO L226 Difference]: Without dead ends: 0
[2018-09-30 10:29:16,721 INFO L605 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
[2018-09-30 10:29:16,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2018-09-30 10:29:16,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2018-09-30 10:29:16,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2018-09-30 10:29:16,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2018-09-30 10:29:16,722 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8
[2018-09-30 10:29:16,722 INFO L84 Accepts]: Finished accepts. word is rejected.
[2018-09-30 10:29:16,722 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2018-09-30 10:29:16,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2018-09-30 10:29:16,723 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2018-09-30 10:29:16,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2018-09-30 10:29:16,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2018-09-30 10:29:16,911 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 19
[2018-09-30 10:29:17,058 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24
[2018-09-30 10:29:17,062 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 12 83) no Hoare annotation was computed.
[2018-09-30 10:29:17,063 INFO L422 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)))
[2018-09-30 10:29:17,063 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 12 83) no Hoare annotation was computed.
[2018-09-30 10:29:17,063 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 12 83) no Hoare annotation was computed.
[2018-09-30 10:29:17,063 INFO L422 ceAbstractionStarter]: At program point L80(lines 80 81) the Hoare annotation is: false
[2018-09-30 10:29:17,064 INFO L422 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)))
[2018-09-30 10:29:17,064 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 82) no Hoare annotation was computed.
[2018-09-30 10:29:17,077 INFO L202 PluginConnector]: Adding new model veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.09 10:29:17 BoogieIcfgContainer
[2018-09-30 10:29:17,078 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2018-09-30 10:29:17,079 INFO L168 Benchmark]: Toolchain (without parser) took 2387.09 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 97.8 MB). Peak memory consumption was 97.8 MB. Max. memory is 7.1 GB.
[2018-09-30 10:29:17,080 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
[2018-09-30 10:29:17,081 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.32 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
[2018-09-30 10:29:17,081 INFO L168 Benchmark]: Boogie Preprocessor took 23.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
[2018-09-30 10:29:17,082 INFO L168 Benchmark]: RCFGBuilder took 304.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB.
[2018-09-30 10:29:17,083 INFO L168 Benchmark]: TraceAbstraction took 2008.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.7 MB). Peak memory consumption was 76.7 MB. Max. memory is 7.1 GB.
[2018-09-30 10:29:17,087 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
* Boogie Procedure Inliner took 45.32 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
* Boogie Preprocessor took 23.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB.
* RCFGBuilder took 304.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 2008.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.7 MB). Peak memory consumption was 76.7 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, 1.9s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 12 SDs, 0 SdLazy, 28 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s 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, 0.0s AbstIntTime, 0 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, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 545 SizeOfPredicates, 14 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 6/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_NetBSD-libc__loop.i_2.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-29-17-101.csv
Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_NetBSD-libc__loop.i_2.bpl_svcomp-Reach-32bit-Automizer_Default.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-29-17-101.csv
Received shutdown request...