java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 12:33:50,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 12:33:50,442 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 12:33:50,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 12:33:50,460 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 12:33:50,461 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 12:33:50,463 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 12:33:50,466 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 12:33:50,467 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 12:33:50,470 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 12:33:50,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 12:33:50,473 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 12:33:50,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 12:33:50,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 12:33:50,476 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 12:33:50,477 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 12:33:50,478 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 12:33:50,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 12:33:50,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 12:33:50,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 12:33:50,484 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 12:33:50,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 12:33:50,488 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 12:33:50,488 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 12:33:50,489 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 12:33:50,492 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 12:33:50,493 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 12:33:50,494 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 12:33:50,495 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 12:33:50,496 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 12:33:50,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 12:33:50,499 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 12:33:50,501 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 12:33:50,519 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 12:33:50,519 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 12:33:50,520 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 12:33:50,520 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 12:33:50,520 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 12:33:50,520 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 12:33:50,521 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 12:33:50,521 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 12:33:50,521 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 12:33:50,521 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 12:33:50,521 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 12:33:50,522 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 12:33:50,522 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 12:33:50,522 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 12:33:50,523 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 12:33:50,523 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 12:33:50,523 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 12:33:50,523 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 12:33:50,523 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 12:33:50,524 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 12:33:50,524 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 12:33:50,524 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 12:33:50,524 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 12:33:50,524 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 12:33:50,524 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 12:33:50,525 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 12:33:50,525 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 12:33:50,525 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 12:33:50,525 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 12:33:50,525 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 12:33:50,526 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 12:33:50,526 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 12:33:50,526 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 12:33:50,526 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 12:33:50,526 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 12:33:50,526 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 12:33:50,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 12:33:50,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 12:33:50,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 12:33:50,589 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 12:33:50,589 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 12:33:50,590 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-10-24 12:33:50,648 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50d0f09b2/a791ae87973e41f9aeb02a196bb4f927/FLAG859de9dda [2018-10-24 12:33:51,114 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 12:33:51,115 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-10-24 12:33:51,124 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50d0f09b2/a791ae87973e41f9aeb02a196bb4f927/FLAG859de9dda [2018-10-24 12:33:51,144 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/50d0f09b2/a791ae87973e41f9aeb02a196bb4f927 [2018-10-24 12:33:51,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 12:33:51,161 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 12:33:51,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 12:33:51,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 12:33:51,168 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 12:33:51,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75870422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51, skipping insertion in model container [2018-10-24 12:33:51,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 12:33:51,211 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 12:33:51,417 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:33:51,422 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 12:33:51,444 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 12:33:51,462 INFO L193 MainTranslator]: Completed translation [2018-10-24 12:33:51,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51 WrapperNode [2018-10-24 12:33:51,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 12:33:51,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 12:33:51,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 12:33:51,464 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 12:33:51,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 12:33:51,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 12:33:51,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 12:33:51,488 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 12:33:51,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,499 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... [2018-10-24 12:33:51,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 12:33:51,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 12:33:51,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 12:33:51,516 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 12:33:51,517 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 12:33:51,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 12:33:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 12:33:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 12:33:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 12:33:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 12:33:51,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 12:33:51,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-24 12:33:51,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-24 12:33:52,034 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 12:33:52,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:33:52 BoogieIcfgContainer [2018-10-24 12:33:52,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 12:33:52,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 12:33:52,036 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 12:33:52,049 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 12:33:52,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:33:51" (1/3) ... [2018-10-24 12:33:52,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd4dcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:33:52, skipping insertion in model container [2018-10-24 12:33:52,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:33:51" (2/3) ... [2018-10-24 12:33:52,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bd4dcc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:33:52, skipping insertion in model container [2018-10-24 12:33:52,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:33:52" (3/3) ... [2018-10-24 12:33:52,056 INFO L112 eAbstractionObserver]: Analyzing ICFG NetBSD_loop_true-unreach-call_true-termination.i [2018-10-24 12:33:52,077 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 12:33:52,093 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 12:33:52,110 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 12:33:52,141 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 12:33:52,142 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 12:33:52,142 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 12:33:52,142 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 12:33:52,142 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 12:33:52,142 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 12:33:52,143 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 12:33:52,143 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 12:33:52,161 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-24 12:33:52,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-24 12:33:52,167 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:33:52,168 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:33:52,170 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:33:52,176 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:52,176 INFO L82 PathProgramCache]: Analyzing trace with hash 328932071, now seen corresponding path program 1 times [2018-10-24 12:33:52,178 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:33:52,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:52,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:52,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:52,233 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:33:52,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:52,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:33:52,446 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 12:33:52,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 12:33:52,447 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 12:33:52,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 12:33:52,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 12:33:52,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 12:33:52,466 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2018-10-24 12:33:52,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:33:52,641 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-10-24 12:33:52,641 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-24 12:33:52,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-24 12:33:52,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:33:52,650 INFO L225 Difference]: With dead ends: 46 [2018-10-24 12:33:52,650 INFO L226 Difference]: Without dead ends: 22 [2018-10-24 12:33:52,654 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 12:33:52,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-24 12:33:52,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-24 12:33:52,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-24 12:33:52,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-24 12:33:52,691 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2018-10-24 12:33:52,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:33:52,691 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-24 12:33:52,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 12:33:52,692 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-24 12:33:52,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-24 12:33:52,693 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:33:52,693 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:33:52,693 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:33:52,694 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:52,694 INFO L82 PathProgramCache]: Analyzing trace with hash -249951176, now seen corresponding path program 1 times [2018-10-24 12:33:52,694 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:33:52,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:52,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:52,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:52,696 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:33:52,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:52,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:33:52,816 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:33:52,818 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 12:33:52,819 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-10-24 12:33:52,820 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [20], [30], [33], [35], [38], [40], [41], [42], [43], [45], [46], [47] [2018-10-24 12:33:52,854 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 12:33:52,854 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 12:33:53,008 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 12:33:53,009 INFO L272 AbstractInterpreter]: Visited 17 different actions 22 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-10-24 12:33:53,018 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:53,019 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 12:33:53,020 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:33:53,020 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 12:33:53,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:53,031 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 12:33:53,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:53,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 12:33:53,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:33:53,530 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 12:33:53,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 12:33:53,851 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 12:33:53,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 8] total 15 [2018-10-24 12:33:53,851 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 12:33:53,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-24 12:33:53,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-24 12:33:53,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-10-24 12:33:53,854 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 11 states. [2018-10-24 12:33:54,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:33:54,171 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-10-24 12:33:54,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 12:33:54,172 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 18 [2018-10-24 12:33:54,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:33:54,174 INFO L225 Difference]: With dead ends: 37 [2018-10-24 12:33:54,174 INFO L226 Difference]: Without dead ends: 35 [2018-10-24 12:33:54,175 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2018-10-24 12:33:54,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-24 12:33:54,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-10-24 12:33:54,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-24 12:33:54,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-10-24 12:33:54,184 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 18 [2018-10-24 12:33:54,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:33:54,184 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-10-24 12:33:54,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-24 12:33:54,185 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-10-24 12:33:54,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-24 12:33:54,190 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 12:33:54,190 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 12:33:54,190 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 12:33:54,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:54,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1081143257, now seen corresponding path program 1 times [2018-10-24 12:33:54,191 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 12:33:54,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:54,195 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:54,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 12:33:54,195 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 12:33:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:54,482 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-24 12:33:54,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:33:54,483 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 12:33:54,483 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-10-24 12:33:54,483 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [20], [24], [30], [33], [35], [38], [40], [41], [42], [43], [45], [46], [47], [48] [2018-10-24 12:33:54,485 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 12:33:54,485 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 12:33:54,559 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 12:33:54,560 INFO L272 AbstractInterpreter]: Visited 19 different actions 58 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-10-24 12:33:54,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 12:33:54,576 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 12:33:54,576 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 12:33:54,577 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 12:33:54,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 12:33:54,594 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 12:33:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 12:33:54,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 12:33:54,814 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 12:33:54,814 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 12:33:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-24 12:33:55,067 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 12:33:55,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 9] total 16 [2018-10-24 12:33:55,067 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 12:33:55,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 12:33:55,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 12:33:55,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-10-24 12:33:55,069 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 13 states. [2018-10-24 12:33:55,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 12:33:55,455 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-10-24 12:33:55,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-24 12:33:55,456 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2018-10-24 12:33:55,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 12:33:55,456 INFO L225 Difference]: With dead ends: 40 [2018-10-24 12:33:55,456 INFO L226 Difference]: Without dead ends: 0 [2018-10-24 12:33:55,457 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 53 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2018-10-24 12:33:55,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-24 12:33:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-24 12:33:55,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-24 12:33:55,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-24 12:33:55,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-10-24 12:33:55,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 12:33:55,459 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-24 12:33:55,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 12:33:55,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-24 12:33:55,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-24 12:33:55,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-24 12:33:55,675 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-24 12:33:55,676 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:33:55,676 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-24 12:33:55,676 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-24 12:33:55,676 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-24 12:33:55,676 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-24 12:33:55,676 INFO L428 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2018-10-24 12:33:55,677 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 31) the Hoare annotation is: true [2018-10-24 12:33:55,677 INFO L425 ceAbstractionStarter]: For program point L28(lines 24 29) no Hoare annotation was computed. [2018-10-24 12:33:55,677 INFO L421 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (< 0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2018-10-24 12:33:55,677 INFO L421 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (< 0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0)) [2018-10-24 12:33:55,677 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 31) no Hoare annotation was computed. [2018-10-24 12:33:55,678 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2018-10-24 12:33:55,678 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 29) the Hoare annotation is: (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (< 0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0)) [2018-10-24 12:33:55,678 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-24 12:33:55,678 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-24 12:33:55,678 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 31) no Hoare annotation was computed. [2018-10-24 12:33:55,679 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-24 12:33:55,679 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:33:55,679 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-24 12:33:55,679 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-24 12:33:55,679 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-24 12:33:55,679 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-24 12:33:55,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:33:55 BoogieIcfgContainer [2018-10-24 12:33:55,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 12:33:55,694 INFO L168 Benchmark]: Toolchain (without parser) took 4535.68 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -554.2 MB). Peak memory consumption was 160.9 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:55,696 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-10-24 12:33:55,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.72 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:55,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.13 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. [2018-10-24 12:33:55,698 INFO L168 Benchmark]: Boogie Preprocessor took 27.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 12:33:55,699 INFO L168 Benchmark]: RCFGBuilder took 519.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -751.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:55,700 INFO L168 Benchmark]: TraceAbstraction took 3656.98 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 186.4 MB). Peak memory consumption was 186.4 MB. Max. memory is 7.1 GB. [2018-10-24 12:33:55,704 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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. * CACSL2BoogieTranslator took 300.72 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.13 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 27.46 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 519.44 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -751.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3656.98 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 186.4 MB). Peak memory consumption was 186.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (glob2_pathlim_off <= MAXPATHLEN && 0 < MAXPATHLEN) && 0 <= glob2_p_off - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 3.5s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 43 SDtfs, 49 SDslu, 168 SDs, 0 SdLazy, 165 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 83 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 27 NumberOfFragments, 42 HoareAnnotationTreeSize, 16 FomulaSimplifications, 33 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 75 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 10649 SizeOfPredicates, 11 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 38/72 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...