./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0322173b3e50156a3157d6284ff4dd2480f2ac8d ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:18:10,582 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:18:10,584 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:18:10,596 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:18:10,596 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:18:10,597 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:18:10,598 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:18:10,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:18:10,602 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:18:10,603 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:18:10,604 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:18:10,604 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:18:10,605 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:18:10,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:18:10,607 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:18:10,608 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:18:10,609 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:18:10,610 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:18:10,612 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:18:10,614 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:18:10,615 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:18:10,616 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:18:10,619 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:18:10,619 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:18:10,619 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:18:10,620 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:18:10,621 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:18:10,622 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:18:10,623 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:18:10,624 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:18:10,624 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:18:10,625 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:18:10,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:18:10,626 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:18:10,627 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:18:10,627 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:18:10,628 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:18:10,654 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:18:10,655 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:18:10,656 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:18:10,656 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:18:10,656 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:18:10,656 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:18:10,658 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:18:10,658 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:18:10,658 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:18:10,659 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:18:10,659 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:18:10,660 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:18:10,660 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:18:10,660 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:18:10,660 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:18:10,660 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:18:10,660 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:18:10,662 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:18:10,663 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:18:10,663 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:18:10,663 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:18:10,664 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:18:10,664 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:18:10,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:18:10,664 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:18:10,664 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:18:10,664 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:18:10,665 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:18:10,665 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:18:10,665 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:18:10,665 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0322173b3e50156a3157d6284ff4dd2480f2ac8d [2018-11-28 18:18:10,708 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:18:10,721 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:18:10,724 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:18:10,726 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:18:10,726 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:18:10,727 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-11-28 18:18:10,785 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec203794c/7b39433ad17e40d39d545bdb648aae59/FLAG9ae227a04 [2018-11-28 18:18:11,254 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:18:11,255 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-11-28 18:18:11,262 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec203794c/7b39433ad17e40d39d545bdb648aae59/FLAG9ae227a04 [2018-11-28 18:18:11,615 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec203794c/7b39433ad17e40d39d545bdb648aae59 [2018-11-28 18:18:11,618 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:18:11,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:18:11,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:18:11,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:18:11,625 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:18:11,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,629 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72559c95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11, skipping insertion in model container [2018-11-28 18:18:11,629 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:18:11,654 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:18:11,848 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:18:11,860 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:18:11,879 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:18:11,896 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:18:11,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11 WrapperNode [2018-11-28 18:18:11,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:18:11,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:18:11,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:18:11,898 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:18:11,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:18:11,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:18:11,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:18:11,932 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:18:11,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... [2018-11-28 18:18:11,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:18:11,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:18:11,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:18:11,965 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:18:11,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:18:12,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:18:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:18:12,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:18:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:18:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure glob2 [2018-11-28 18:18:12,084 INFO L138 BoogieDeclarations]: Found implementation of procedure glob2 [2018-11-28 18:18:12,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:18:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:18:12,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:18:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:18:12,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 18:18:12,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 18:18:12,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:18:12,451 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:18:12,452 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-11-28 18:18:12,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:18:12 BoogieIcfgContainer [2018-11-28 18:18:12,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:18:12,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:18:12,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:18:12,456 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:18:12,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:18:11" (1/3) ... [2018-11-28 18:18:12,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f91b7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:18:12, skipping insertion in model container [2018-11-28 18:18:12,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:18:11" (2/3) ... [2018-11-28 18:18:12,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f91b7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:18:12, skipping insertion in model container [2018-11-28 18:18:12,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:18:12" (3/3) ... [2018-11-28 18:18:12,460 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc__loop_true-unreach-call_true-termination.i [2018-11-28 18:18:12,470 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:18:12,477 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:18:12,493 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:18:12,526 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:18:12,527 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:18:12,527 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:18:12,527 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:18:12,527 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:18:12,527 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:18:12,527 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:18:12,528 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:18:12,528 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:18:12,546 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-28 18:18:12,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 18:18:12,551 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:18:12,552 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:18:12,554 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:18:12,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:18:12,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1626450083, now seen corresponding path program 1 times [2018-11-28 18:18:12,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:18:12,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:18:12,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:12,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:18:12,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:12,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:18:12,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:18:12,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:18:12,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:18:12,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:18:13,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:18:13,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:18:13,009 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 7 states. [2018-11-28 18:18:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:18:13,496 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2018-11-28 18:18:13,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 18:18:13,498 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-11-28 18:18:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:18:13,505 INFO L225 Difference]: With dead ends: 55 [2018-11-28 18:18:13,505 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 18:18:13,509 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-28 18:18:13,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 18:18:13,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2018-11-28 18:18:13,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 18:18:13,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-11-28 18:18:13,546 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 13 [2018-11-28 18:18:13,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:18:13,547 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-11-28 18:18:13,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:18:13,547 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-11-28 18:18:13,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-28 18:18:13,548 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:18:13,548 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:18:13,548 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:18:13,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:18:13,549 INFO L82 PathProgramCache]: Analyzing trace with hash -519824651, now seen corresponding path program 1 times [2018-11-28 18:18:13,549 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:18:13,549 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:18:13,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:13,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:18:13,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:18:13,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:18:13,914 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:18:13,914 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:18:13,914 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:18:13,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:18:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:18:13,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:18:14,655 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:18:14,675 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:18:14,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10] total 14 [2018-11-28 18:18:14,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 18:18:14,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 18:18:14,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2018-11-28 18:18:14,678 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 14 states. [2018-11-28 18:18:15,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:18:15,047 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2018-11-28 18:18:15,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:18:15,047 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 21 [2018-11-28 18:18:15,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:18:15,048 INFO L225 Difference]: With dead ends: 27 [2018-11-28 18:18:15,048 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:18:15,051 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-11-28 18:18:15,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:18:15,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:18:15,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:18:15,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:18:15,052 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-28 18:18:15,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:18:15,053 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:18:15,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 18:18:15,054 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:18:15,054 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:18:15,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:18:15,266 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2018-11-28 18:18:15,327 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:18:15,327 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:18:15,327 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:18:15,327 INFO L451 ceAbstractionStarter]: At program point glob2ENTRY(lines 14 25) the Hoare annotation is: true [2018-11-28 18:18:15,328 INFO L448 ceAbstractionStarter]: For program point glob2EXIT(lines 14 25) no Hoare annotation was computed. [2018-11-28 18:18:15,328 INFO L444 ceAbstractionStarter]: At program point L20(line 20) the Hoare annotation is: (or (< ~tmp~0.offset 4) (not (= 0 |glob2_#in~pathbuf.offset|)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (< ~tmp~0.offset |glob2_#in~pathlim.offset|) (and (<= glob2_~p~0.offset ~tmp~0.offset) (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base))) [2018-11-28 18:18:15,328 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 18:18:15,328 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 22) no Hoare annotation was computed. [2018-11-28 18:18:15,329 INFO L444 ceAbstractionStarter]: At program point L18-3(lines 18 22) the Hoare annotation is: (or (< ~tmp~0.offset 4) (and (<= glob2_~pathlim.offset ~tmp~0.offset) (= ~tmp~0.base glob2_~p~0.base)) (not (= 0 |glob2_#in~pathbuf.offset|)) (not (= ~tmp~0.base |glob2_#in~pathbuf.base|)) (< ~tmp~0.offset |glob2_#in~pathlim.offset|)) [2018-11-28 18:18:15,330 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 22) no Hoare annotation was computed. [2018-11-28 18:18:15,330 INFO L448 ceAbstractionStarter]: For program point glob2FINAL(lines 14 25) no Hoare annotation was computed. [2018-11-28 18:18:15,330 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:18:15,330 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:18:15,331 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:18:15,331 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:18:15,331 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 27 38) the Hoare annotation is: true [2018-11-28 18:18:15,331 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 27 38) no Hoare annotation was computed. [2018-11-28 18:18:15,331 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 27 38) no Hoare annotation was computed. [2018-11-28 18:18:15,332 INFO L444 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (<= (+ |main_~#pathbuf~0.offset| 4) ~tmp~0.offset) (= ~tmp~0.base |main_~#pathbuf~0.base|) (<= main_~bound~0.offset ~tmp~0.offset) (= |main_~#pathbuf~0.offset| 0)) [2018-11-28 18:18:15,333 INFO L448 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2018-11-28 18:18:15,333 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-28 18:18:15,333 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:18:15,334 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-28 18:18:15,334 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-28 18:18:15,334 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-28 18:18:15,334 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-28 18:18:15,352 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:18:15 BoogieIcfgContainer [2018-11-28 18:18:15,352 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:18:15,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:18:15,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:18:15,353 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:18:15,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:18:12" (3/4) ... [2018-11-28 18:18:15,357 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:18:15,365 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:18:15,365 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure glob2 [2018-11-28 18:18:15,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:18:15,366 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 18:18:15,370 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-11-28 18:18:15,371 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-28 18:18:15,371 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:18:15,424 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:18:15,424 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:18:15,425 INFO L168 Benchmark]: Toolchain (without parser) took 3806.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 943.3 MB in the beginning and 977.3 MB in the end (delta: -34.0 MB). Peak memory consumption was 107.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:15,427 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:18:15,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.37 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:15,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.59 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:18:15,428 INFO L168 Benchmark]: Boogie Preprocessor took 32.93 ms. Allocated memory is still 1.0 GB. Free memory was 932.5 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:15,429 INFO L168 Benchmark]: RCFGBuilder took 487.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:15,430 INFO L168 Benchmark]: TraceAbstraction took 2898.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.3 MB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:18:15,431 INFO L168 Benchmark]: Witness Printer took 72.15 ms. Allocated memory is still 1.2 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:18:15,439 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 276.37 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.59 ms. Allocated memory is still 1.0 GB. Free memory is still 932.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.93 ms. Allocated memory is still 1.0 GB. Free memory was 932.5 MB in the beginning and 927.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 487.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -190.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2898.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 977.3 MB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 11.5 GB. * Witness Printer took 72.15 ms. Allocated memory is still 1.2 GB. Free memory is still 977.3 MB. There was no memory consumed. Max. memory is 11.5 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: 18]: Loop Invariant Derived loop invariant: (((tmp < 4 || (pathlim <= tmp && tmp == p)) || !(0 == pathbuf)) || !(tmp == pathbuf)) || tmp < pathlim - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. SAFE Result, 2.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 26 SDtfs, 42 SDslu, 139 SDs, 0 SdLazy, 158 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 18 SyntacticMatches, 4 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 72 HoareAnnotationTreeSize, 11 FomulaSimplifications, 63 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 4128 SizeOfPredicates, 8 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 3/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...