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.epf -i ../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 16:05:43,623 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 16:05:43,625 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 16:05:43,637 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 16:05:43,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 16:05:43,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 16:05:43,640 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 16:05:43,642 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 16:05:43,644 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 16:05:43,644 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 16:05:43,645 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 16:05:43,646 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 16:05:43,647 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 16:05:43,648 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 16:05:43,649 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 16:05:43,650 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 16:05:43,651 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 16:05:43,652 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 16:05:43,654 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 16:05:43,656 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 16:05:43,657 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 16:05:43,658 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 16:05:43,661 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 16:05:43,661 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 16:05:43,662 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 16:05:43,663 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 16:05:43,664 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 16:05:43,665 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 16:05:43,665 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 16:05:43,667 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 16:05:43,667 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 16:05:43,668 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-22 16:05:43,670 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-22 16:05:43,687 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 16:05:43,687 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 16:05:43,688 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 16:05:43,688 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 16:05:43,689 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 16:05:43,689 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 16:05:43,689 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 16:05:43,689 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 16:05:43,689 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-22 16:05:43,690 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 16:05:43,690 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 16:05:43,690 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 16:05:43,691 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 16:05:43,691 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 16:05:43,691 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 16:05:43,691 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 16:05:43,692 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 16:05:43,692 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 16:05:43,692 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 16:05:43,692 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 16:05:43,692 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 16:05:43,693 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 16:05:43,693 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 16:05:43,693 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 16:05:43,693 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 16:05:43,694 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 16:05:43,694 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 16:05:43,694 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 16:05:43,694 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 16:05:43,694 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 16:05:43,695 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 16:05:43,695 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 16:05:43,695 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 16:05:43,695 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-22 16:05:43,751 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 16:05:43,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 16:05:43,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 16:05:43,777 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 16:05:43,778 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 16:05:43,779 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-10-22 16:05:43,838 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac9564fa2/d8a48373be9242b5ac8f62be2de27fb0/FLAG4458407b2 [2018-10-22 16:05:44,334 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 16:05:44,336 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/NetBSD_loop_true-unreach-call_true-termination.i [2018-10-22 16:05:44,344 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac9564fa2/d8a48373be9242b5ac8f62be2de27fb0/FLAG4458407b2 [2018-10-22 16:05:44,358 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac9564fa2/d8a48373be9242b5ac8f62be2de27fb0 [2018-10-22 16:05:44,369 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 16:05:44,371 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 16:05:44,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 16:05:44,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 16:05:44,376 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 16:05:44,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7007d935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44, skipping insertion in model container [2018-10-22 16:05:44,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 16:05:44,411 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 16:05:44,579 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 16:05:44,583 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 16:05:44,603 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 16:05:44,619 INFO L193 MainTranslator]: Completed translation [2018-10-22 16:05:44,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44 WrapperNode [2018-10-22 16:05:44,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 16:05:44,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 16:05:44,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 16:05:44,622 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 16:05:44,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 16:05:44,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 16:05:44,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 16:05:44,645 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 16:05:44,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (1/1) ... [2018-10-22 16:05:44,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 16:05:44,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 16:05:44,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 16:05:44,669 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 16:05:44,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (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 [2018-10-22 16:05:44,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 16:05:44,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 16:05:44,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 16:05:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 16:05:44,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 16:05:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 16:05:44,744 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 16:05:44,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 16:05:45,153 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 16:05:45,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:05:45 BoogieIcfgContainer [2018-10-22 16:05:45,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 16:05:45,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 16:05:45,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 16:05:45,166 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 16:05:45,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 04:05:44" (1/3) ... [2018-10-22 16:05:45,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce08112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:05:45, skipping insertion in model container [2018-10-22 16:05:45,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:05:44" (2/3) ... [2018-10-22 16:05:45,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce08112 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:05:45, skipping insertion in model container [2018-10-22 16:05:45,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:05:45" (3/3) ... [2018-10-22 16:05:45,170 INFO L112 eAbstractionObserver]: Analyzing ICFG NetBSD_loop_true-unreach-call_true-termination.i [2018-10-22 16:05:45,180 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 16:05:45,189 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 16:05:45,210 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 16:05:45,257 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 16:05:45,258 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 16:05:45,258 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 16:05:45,259 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 16:05:45,259 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 16:05:45,259 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 16:05:45,259 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 16:05:45,259 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 16:05:45,260 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 16:05:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-22 16:05:45,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 16:05:45,296 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:05:45,298 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:05:45,301 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:05:45,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:45,307 INFO L82 PathProgramCache]: Analyzing trace with hash 328932071, now seen corresponding path program 1 times [2018-10-22 16:05:45,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:05:45,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:45,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:05:45,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:45,360 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:05:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:05:45,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:05:45,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 16:05:45,582 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 16:05:45,582 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:05:45,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 16:05:45,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 16:05:45,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 16:05:45,602 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2018-10-22 16:05:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:05:45,767 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2018-10-22 16:05:45,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 16:05:45,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-22 16:05:45,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:05:45,777 INFO L225 Difference]: With dead ends: 46 [2018-10-22 16:05:45,777 INFO L226 Difference]: Without dead ends: 22 [2018-10-22 16:05:45,781 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 [2018-10-22 16:05:45,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-10-22 16:05:45,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-10-22 16:05:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-10-22 16:05:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2018-10-22 16:05:45,820 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2018-10-22 16:05:45,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:05:45,820 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2018-10-22 16:05:45,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 16:05:45,821 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2018-10-22 16:05:45,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-22 16:05:45,821 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:05:45,822 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:05:45,825 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:05:45,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:45,825 INFO L82 PathProgramCache]: Analyzing trace with hash -249951176, now seen corresponding path program 1 times [2018-10-22 16:05:45,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:05:45,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:45,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:05:45,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:45,828 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:05:45,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:05:46,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:05:46,026 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:05:46,026 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 16:05:46,027 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-10-22 16:05:46,029 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [20], [30], [33], [35], [38], [40], [41], [42], [43], [45], [46], [47] [2018-10-22 16:05:46,075 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 16:05:46,076 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 16:05:46,250 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 16:05:46,252 INFO L272 AbstractInterpreter]: Visited 16 different actions 20 times. Never merged. Never widened. Never found a fixpoint. Largest state had 7 variables. [2018-10-22 16:05:46,261 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:46,261 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 16:05:46,362 INFO L232 lantSequenceWeakener]: Weakened 8 states. On average, predicates are now at 66.67% of their original sizes. [2018-10-22 16:05:46,362 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 16:05:46,607 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 16:05:46,608 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 16:05:46,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-10-22 16:05:46,608 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:05:46,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 16:05:46,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 16:05:46,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-22 16:05:46,611 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 8 states. [2018-10-22 16:05:47,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:05:47,104 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2018-10-22 16:05:47,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 16:05:47,104 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-10-22 16:05:47,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:05:47,106 INFO L225 Difference]: With dead ends: 37 [2018-10-22 16:05:47,106 INFO L226 Difference]: Without dead ends: 35 [2018-10-22 16:05:47,107 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-22 16:05:47,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2018-10-22 16:05:47,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2018-10-22 16:05:47,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-10-22 16:05:47,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2018-10-22 16:05:47,126 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 18 [2018-10-22 16:05:47,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:05:47,127 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2018-10-22 16:05:47,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 16:05:47,127 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2018-10-22 16:05:47,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-22 16:05:47,130 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:05:47,130 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:05:47,130 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:05:47,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:47,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1081143257, now seen corresponding path program 1 times [2018-10-22 16:05:47,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:05:47,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:47,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:05:47,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:05:47,137 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:05:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:05:47,317 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-22 16:05:47,317 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:05:47,318 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 16:05:47,318 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 32 with the following transitions: [2018-10-22 16:05:47,318 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [15], [20], [24], [30], [33], [35], [38], [40], [41], [42], [43], [45], [46], [47], [48] [2018-10-22 16:05:47,320 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 16:05:47,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 16:05:47,477 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-22 16:05:47,477 INFO L272 AbstractInterpreter]: Visited 19 different actions 133 times. Merged at 5 different actions 35 times. Widened at 1 different actions 3 times. Found 1 fixpoints after 1 different actions. Largest state had 8 variables. [2018-10-22 16:05:47,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:05:47,522 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-22 16:05:47,523 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:05:47,523 INFO L197 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 [2018-10-22 16:05:47,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:05:47,541 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 16:05:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:05:47,603 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 16:05:47,864 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-22 16:05:47,864 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 16:05:48,593 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-22 16:05:48,628 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:05:48,628 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-10-22 16:05:48,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:05:48,666 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-22 16:05:48,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:05:48,703 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-22 16:05:48,720 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-22 16:05:48,721 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-22 16:05:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-22 16:05:48,917 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-10-22 16:05:48,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 9, 7, 7] total 16 [2018-10-22 16:05:48,918 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-22 16:05:48,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-22 16:05:48,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-22 16:05:48,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-10-22 16:05:48,920 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand 13 states. [2018-10-22 16:05:49,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:05:49,233 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2018-10-22 16:05:49,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-22 16:05:49,234 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 31 [2018-10-22 16:05:49,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:05:49,235 INFO L225 Difference]: With dead ends: 40 [2018-10-22 16:05:49,235 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 16:05:49,236 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 112 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=95, Invalid=367, Unknown=0, NotChecked=0, Total=462 [2018-10-22 16:05:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 16:05:49,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 16:05:49,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 16:05:49,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 16:05:49,237 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-10-22 16:05:49,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:05:49,237 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 16:05:49,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-22 16:05:49,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 16:05:49,238 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 16:05:49,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 16:05:49,499 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 16:05:49,500 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 16:05:49,500 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 16:05:49,500 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 16:05:49,500 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 16:05:49,500 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 16:05:49,500 INFO L428 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2018-10-22 16:05:49,501 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 31) the Hoare annotation is: true [2018-10-22 16:05:49,501 INFO L425 ceAbstractionStarter]: For program point L28(lines 24 29) no Hoare annotation was computed. [2018-10-22 16:05:49,501 INFO L421 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (let ((.cse0 (* 2 main_~MAXPATHLEN~0))) (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= 2 .cse0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0) (<= .cse0 4294967292))) [2018-10-22 16:05:49,501 INFO L421 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (let ((.cse0 (* 2 main_~MAXPATHLEN~0))) (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= 2 .cse0) (<= main_~glob2_p_off~0 main_~MAXPATHLEN~0) (<= .cse0 4294967292))) [2018-10-22 16:05:49,501 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 31) no Hoare annotation was computed. [2018-10-22 16:05:49,502 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2018-10-22 16:05:49,502 INFO L421 ceAbstractionStarter]: At program point L24-3(lines 24 29) the Hoare annotation is: (let ((.cse0 (* 2 main_~MAXPATHLEN~0))) (and (<= main_~glob2_pathlim_off~0 main_~MAXPATHLEN~0) (<= 0 main_~glob2_p_off~0) (<= 2 .cse0) (<= .cse0 4294967292))) [2018-10-22 16:05:49,502 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-10-22 16:05:49,502 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-10-22 16:05:49,502 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 31) no Hoare annotation was computed. [2018-10-22 16:05:49,503 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 16:05:49,503 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 16:05:49,503 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 16:05:49,503 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 16:05:49,503 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 16:05:49,503 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 16:05:49,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 04:05:49 BoogieIcfgContainer [2018-10-22 16:05:49,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 16:05:49,513 INFO L168 Benchmark]: Toolchain (without parser) took 5143.75 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -574.1 MB). Peak memory consumption was 182.4 MB. Max. memory is 7.1 GB. [2018-10-22 16:05:49,515 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. [2018-10-22 16:05:49,516 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.05 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. [2018-10-22 16:05:49,517 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.36 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. [2018-10-22 16:05:49,518 INFO L168 Benchmark]: Boogie Preprocessor took 23.71 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. [2018-10-22 16:05:49,518 INFO L168 Benchmark]: RCFGBuilder took 485.53 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-22 16:05:49,519 INFO L168 Benchmark]: TraceAbstraction took 4351.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 223.2 MB). Peak memory consumption was 223.2 MB. Max. memory is 7.1 GB. [2018-10-22 16:05:49,524 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 248.05 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 23.36 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 23.71 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 485.53 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 756.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -807.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4351.39 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 223.2 MB). Peak memory consumption was 223.2 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 <= glob2_p_off) && 2 <= 2 * MAXPATHLEN) && 2 * MAXPATHLEN <= 4294967292 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 41 SDslu, 172 SDs, 0 SdLazy, 116 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 162 GetRequests, 126 SyntacticMatches, 5 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 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, 0.4s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.8823529411764707 AbsIntWeakeningRatio, 0.8823529411764706 AbsIntAvgWeakeningVarsNumRemoved, 16.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 16 PreInvPairs, 27 NumberOfFragments, 63 HoareAnnotationTreeSize, 16 FomulaSimplifications, 127 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 263 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 12887 SizeOfPredicates, 9 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 72/112 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...