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_PUPT.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-00a8621 [2018-09-30 10:56:40,646 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-30 10:56:40,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-30 10:56:40,661 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-30 10:56:40,662 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-30 10:56:40,663 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-30 10:56:40,664 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-30 10:56:40,666 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-30 10:56:40,667 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-30 10:56:40,668 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-30 10:56:40,669 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-30 10:56:40,669 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-30 10:56:40,670 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-30 10:56:40,671 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-30 10:56:40,672 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-30 10:56:40,673 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-30 10:56:40,674 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-30 10:56:40,676 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-30 10:56:40,678 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-30 10:56:40,679 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-30 10:56:40,680 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-30 10:56:40,682 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-30 10:56:40,684 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-30 10:56:40,684 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-30 10:56:40,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-30 10:56:40,685 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-30 10:56:40,687 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-30 10:56:40,687 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-30 10:56:40,688 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-30 10:56:40,689 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-30 10:56:40,689 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-30 10:56:40,690 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-30 10:56:40,690 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-30 10:56:40,691 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-30 10:56:40,692 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-30 10:56:40,692 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-30 10:56:40,693 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Automizer_Default_PUPT.epf [2018-09-30 10:56:40,708 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-30 10:56:40,708 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-30 10:56:40,709 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-30 10:56:40,709 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-30 10:56:40,709 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-30 10:56:40,710 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-30 10:56:40,710 INFO L133 SettingsManager]: * Use SBE=true [2018-09-30 10:56:40,710 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-30 10:56:40,710 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-30 10:56:40,710 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-30 10:56:40,711 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-30 10:56:40,712 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-30 10:56:40,712 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-30 10:56:40,712 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-30 10:56:40,712 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-30 10:56:40,713 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-30 10:56:40,713 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-30 10:56:40,713 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-30 10:56:40,713 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-30 10:56:40,715 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-30 10:56:40,715 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-30 10:56:40,715 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-30 10:56:40,715 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-30 10:56:40,715 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-30 10:56:40,716 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-30 10:56:40,716 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-30 10:56:40,716 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-30 10:56:40,716 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-30 10:56:40,716 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-30 10:56:40,716 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-30 10:56:40,717 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-30 10:56:40,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-30 10:56:40,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-30 10:56:40,801 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-30 10:56:40,802 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-30 10:56:40,803 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-30 10:56:40,804 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl [2018-09-30 10:56:40,804 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/veris.c_NetBSD-libc__loop.i_2.bpl' [2018-09-30 10:56:40,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-30 10:56:40,889 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-30 10:56:40,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-30 10:56:40,890 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-30 10:56:40,890 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-30 10:56:40,911 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,926 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,933 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-30 10:56:40,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-30 10:56:40,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-30 10:56:40,934 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-30 10:56:40,945 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,945 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,947 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,947 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,951 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,953 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,954 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 10:56:40" (1/1) ... [2018-09-30 10:56:40,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-30 10:56:40,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-30 10:56:40,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-30 10:56:40,957 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-30 10:56:40,958 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 10:56:40" (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 10:56:41,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-30 10:56:41,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-30 10:56:41,331 INFO L348 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-30 10:56:41,332 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 10:56:41 BoogieIcfgContainer [2018-09-30 10:56:41,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-30 10:56:41,334 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-30 10:56:41,334 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-30 10:56:41,340 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-30 10:56:41,340 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 10:56:40" (1/2) ... [2018-09-30 10:56:41,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e587b6 and model type veris.c_NetBSD-libc__loop.i_2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.09 10:56:41, skipping insertion in model container [2018-09-30 10:56:41,342 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 10:56:41" (2/2) ... [2018-09-30 10:56:41,344 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop.i_2.bpl [2018-09-30 10:56:41,354 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-30 10:56:41,365 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-30 10:56:41,415 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-30 10:56:41,416 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-30 10:56:41,416 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-30 10:56:41,416 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-30 10:56:41,416 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-30 10:56:41,416 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-30 10:56:41,417 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-30 10:56:41,417 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-30 10:56:41,417 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-30 10:56:41,431 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-30 10:56:41,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-30 10:56:41,437 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:56:41,438 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-30 10:56:41,439 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:56:41,449 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:56:41,450 INFO L82 PathProgramCache]: Analyzing trace with hash 925701, now seen corresponding path program 1 times [2018-09-30 10:56:41,452 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:56:41,452 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:56:41,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:56:41,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:56:41,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:56:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:56:41,763 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 10:56:41,765 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:56:41,765 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-30 10:56:41,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-30 10:56:41,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-30 10:56:41,780 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:56:41,782 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2018-09-30 10:56:41,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:56:41,984 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2018-09-30 10:56:41,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:56:41,986 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-09-30 10:56:41,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:56:41,997 INFO L225 Difference]: With dead ends: 12 [2018-09-30 10:56:41,997 INFO L226 Difference]: Without dead ends: 8 [2018-09-30 10:56:42,000 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:56:42,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-30 10:56:42,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-09-30 10:56:42,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-30 10:56:42,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-30 10:56:42,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-30 10:56:42,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:56:42,031 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-30 10:56:42,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-30 10:56:42,031 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-30 10:56:42,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-30 10:56:42,031 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:56:42,032 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-30 10:56:42,032 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:56:42,032 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:56:42,032 INFO L82 PathProgramCache]: Analyzing trace with hash 889531649, now seen corresponding path program 1 times [2018-09-30 10:56:42,032 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:56:42,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:56:42,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:56:42,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:56:42,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:56:42,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:56:42,189 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 10:56:42,189 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-30 10:56:42,189 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 10:56:42,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:56:42,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:56:42,243 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-30 10:56:42,389 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 10:56:42,410 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-09-30 10:56:42,410 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-09-30 10:56:42,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-30 10:56:42,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-30 10:56:42,411 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:56:42,412 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 8 states. [2018-09-30 10:56:42,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:56:42,898 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-09-30 10:56:42,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-30 10:56:42,901 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 6 [2018-09-30 10:56:42,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:56:42,902 INFO L225 Difference]: With dead ends: 12 [2018-09-30 10:56:42,903 INFO L226 Difference]: Without dead ends: 10 [2018-09-30 10:56:42,904 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:56:42,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-09-30 10:56:42,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-09-30 10:56:42,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-09-30 10:56:42,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-09-30 10:56:42,914 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-09-30 10:56:42,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:56:42,914 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-09-30 10:56:42,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-30 10:56:42,914 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-09-30 10:56:42,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-30 10:56:42,915 INFO L367 BasicCegarLoop]: Found error trace [2018-09-30 10:56:42,915 INFO L375 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1] [2018-09-30 10:56:42,916 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-30 10:56:42,916 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-30 10:56:42,916 INFO L82 PathProgramCache]: Analyzing trace with hash 141355773, now seen corresponding path program 2 times [2018-09-30 10:56:42,917 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-30 10:56:42,917 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-30 10:56:42,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:56:42,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-30 10:56:42,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-30 10:56:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-30 10:56:43,126 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 10:56:43,127 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-30 10:56:43,127 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-30 10:56:43,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-30 10:56:43,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-30 10:56:43,128 INFO L146 InterpolantAutomaton]: No coverage relation statistics for PredicateCoverageChecker [2018-09-30 10:56:43,128 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 5 states. [2018-09-30 10:56:43,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-30 10:56:43,221 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2018-09-30 10:56:43,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-30 10:56:43,222 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2018-09-30 10:56:43,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-30 10:56:43,222 INFO L225 Difference]: With dead ends: 10 [2018-09-30 10:56:43,222 INFO L226 Difference]: Without dead ends: 0 [2018-09-30 10:56:43,223 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time [2018-09-30 10:56:43,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-30 10:56:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-30 10:56:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-30 10:56:43,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-30 10:56:43,224 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-09-30 10:56:43,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-30 10:56:43,224 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-30 10:56:43,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-30 10:56:43,225 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-30 10:56:43,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-30 10:56:43,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-30 10:56:43,395 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 18 [2018-09-30 10:56:43,631 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2018-09-30 10:56:43,636 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 12 83) no Hoare annotation was computed. [2018-09-30 10:56:43,636 INFO L422 ceAbstractionStarter]: At program point L64(lines 64 77) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) (.cse1 (= ~tmp.base ULTIMATE.start_glob2_~p~4.base))) (or (and (<= ULTIMATE.start_glob2_~p~4.offset ~tmp.offset) (<= ULTIMATE.start_glob2_~pathlim.offset ULTIMATE.start_glob2_~p~4.offset) .cse0 .cse1) (let ((.cse2 (+ ULTIMATE.start_glob2_~p~4.offset 4))) (and (<= .cse2 ~tmp.offset) (<= ULTIMATE.start_glob2_~pathlim.offset .cse2) .cse0 .cse1)))) [2018-09-30 10:56:43,637 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(lines 12 83) no Hoare annotation was computed. [2018-09-30 10:56:43,637 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 12 83) no Hoare annotation was computed. [2018-09-30 10:56:43,637 INFO L422 ceAbstractionStarter]: At program point L80(lines 80 81) the Hoare annotation is: false [2018-09-30 10:56:43,637 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 10:56:43,638 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 82) no Hoare annotation was computed. [2018-09-30 10:56:43,672 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 10:56:43 BoogieIcfgContainer [2018-09-30 10:56:43,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-30 10:56:43,674 INFO L168 Benchmark]: Toolchain (without parser) took 2789.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 7.1 GB. [2018-09-30 10:56:43,680 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 10:56:43,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 10:56:43,684 INFO L168 Benchmark]: Boogie Preprocessor took 21.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-30 10:56:43,685 INFO L168 Benchmark]: RCFGBuilder took 376.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-30 10:56:43,686 INFO L168 Benchmark]: TraceAbstraction took 2338.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-09-30 10:56:43,691 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 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 21.75 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 376.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2338.92 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 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 <= ~tmp.offset && glob2_~pathlim.offset <= glob2_~p~4.offset) && 1 == __VERIFIER_assert_~cond) && ~tmp.base == glob2_~p~4.base) || (((glob2_~p~4.offset + 4 <= ~tmp.offset && glob2_~pathlim.offset <= glob2_~p~4.offset + 4) && 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, 2.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 10 SDs, 0 SdLazy, 26 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.0s 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, 27 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 645 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_PUPT.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-30_10-56-43-717.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_PUPT.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-30_10-56-43-717.csv Received shutdown request...