./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ff3652fa62b489d4e6a4a85c8349c06d13bd2232 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:43:59,420 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:43:59,421 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:43:59,430 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:43:59,430 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:43:59,431 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:43:59,432 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:43:59,433 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:43:59,434 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:43:59,435 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:43:59,436 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:43:59,436 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:43:59,436 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:43:59,437 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:43:59,438 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:43:59,439 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:43:59,439 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:43:59,440 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:43:59,442 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:43:59,443 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:43:59,444 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:43:59,445 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:43:59,446 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:43:59,447 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:43:59,447 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:43:59,447 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:43:59,448 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:43:59,449 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:43:59,449 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:43:59,450 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:43:59,450 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:43:59,451 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:43:59,451 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:43:59,451 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:43:59,452 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:43:59,452 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:43:59,453 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-18 13:43:59,463 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:43:59,463 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:43:59,464 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:43:59,464 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:43:59,465 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:43:59,465 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:43:59,465 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:43:59,465 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:43:59,465 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:43:59,465 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:43:59,466 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:43:59,466 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:43:59,466 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:43:59,466 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 13:43:59,466 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:43:59,467 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:43:59,467 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:43:59,468 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 13:43:59,468 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 13:43:59,468 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:43:59,468 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:43:59,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 13:43:59,468 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:43:59,468 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:43:59,469 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:43:59,469 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 13:43:59,469 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:43:59,469 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:43:59,469 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak 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 ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff3652fa62b489d4e6a4a85c8349c06d13bd2232 [2018-11-18 13:43:59,493 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:43:59,501 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:43:59,503 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:43:59,503 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:43:59,504 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:43:59,504 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c [2018-11-18 13:43:59,544 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/data/c5278081e/a942ca9c40db4edab7202aea807ce6d1/FLAGad5f9d0e7 [2018-11-18 13:43:59,956 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:43:59,956 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c [2018-11-18 13:43:59,961 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/data/c5278081e/a942ca9c40db4edab7202aea807ce6d1/FLAGad5f9d0e7 [2018-11-18 13:43:59,972 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/data/c5278081e/a942ca9c40db4edab7202aea807ce6d1 [2018-11-18 13:43:59,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:43:59,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:43:59,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:43:59,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:43:59,979 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:43:59,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:59" (1/1) ... [2018-11-18 13:43:59,982 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da0b297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:43:59, skipping insertion in model container [2018-11-18 13:43:59,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:43:59" (1/1) ... [2018-11-18 13:43:59,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:44:00,003 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:44:00,115 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:44:00,117 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:44:00,126 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:44:00,134 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:44:00,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00 WrapperNode [2018-11-18 13:44:00,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:44:00,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:44:00,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:44:00,135 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:44:00,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,152 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:44:00,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:44:00,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:44:00,153 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:44:00,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,159 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,163 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:44:00,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:44:00,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:44:00,165 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:44:00,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:44:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-11-18 13:44:00,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:44:00,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:44:00,341 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:44:00,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:44:00 BoogieIcfgContainer [2018-11-18 13:44:00,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:44:00,342 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 13:44:00,342 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 13:44:00,348 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 13:44:00,348 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:44:00" (1/1) ... [2018-11-18 13:44:00,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:44:00,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-11-18 13:44:00,377 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-11-18 13:44:00,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 13:44:00,379 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:00,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:00,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2018-11-18 13:44:00,448 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-18 13:44:00,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 13:44:00,448 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:00,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:00,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:00,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:00,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2018-11-18 13:44:00,533 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-11-18 13:44:00,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 13:44:00,533 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:00,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:00,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2018-11-18 13:44:00,646 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2018-11-18 13:44:00,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 13:44:00,648 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:00,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:00,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:00,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2018-11-18 13:44:00,830 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2018-11-18 13:44:00,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 13:44:00,830 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:00,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:44:00,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:00,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2018-11-18 13:44:00,975 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2018-11-18 13:44:00,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:44:00,976 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:00,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:44:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:01,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2018-11-18 13:44:01,180 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2018-11-18 13:44:01,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:44:01,181 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:01,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:44:01,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:01,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 34 states and 47 transitions. [2018-11-18 13:44:01,238 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2018-11-18 13:44:01,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:44:01,239 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:44:01,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:01,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2018-11-18 13:44:01,392 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2018-11-18 13:44:01,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 13:44:01,392 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:01,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:44:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 39 states and 51 transitions. [2018-11-18 13:44:01,470 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2018-11-18 13:44:01,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 13:44:01,471 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:01,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:01,481 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:44:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2018-11-18 13:44:01,526 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2018-11-18 13:44:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 13:44:01,526 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:01,538 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 13:44:01,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:01,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2018-11-18 13:44:01,609 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-18 13:44:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 13:44:01,610 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:01,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:01,621 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-18 13:44:01,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:01,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 31 transitions. [2018-11-18 13:44:01,704 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2018-11-18 13:44:01,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 13:44:01,704 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:44:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:44:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 13:44:01,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:44:01,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-18 13:44:01,782 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-18 13:44:01,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:44:01,783 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2018-11-18 13:44:01,789 INFO L775 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-18 13:44:01,833 INFO L579 CodeCheckObserver]: Invariant with dag size 9 [2018-11-18 13:44:01,838 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:44:01,839 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-18 13:44:01,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 01:44:01 ImpRootNode [2018-11-18 13:44:01,839 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 13:44:01,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:44:01,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:44:01,840 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:44:01,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:44:00" (3/4) ... [2018-11-18 13:44:01,842 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:44:01,848 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 13:44:01,848 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:44:01,848 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:44:01,873 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_89c7dc41-b3bb-44d6-98b9-9435e4d15776/bin-2019/ukojak/witness.graphml [2018-11-18 13:44:01,873 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:44:01,873 INFO L168 Benchmark]: Toolchain (without parser) took 1898.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 958.1 MB in the beginning and 891.4 MB in the end (delta: 66.6 MB). Peak memory consumption was 223.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:44:01,874 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:44:01,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 158.55 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:44:01,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.20 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:44:01,875 INFO L168 Benchmark]: Boogie Preprocessor took 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:44:01,875 INFO L168 Benchmark]: RCFGBuilder took 176.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:44:01,875 INFO L168 Benchmark]: CodeCheck took 1497.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 894.7 MB in the end (delta: 245.8 MB). Peak memory consumption was 245.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:44:01,876 INFO L168 Benchmark]: Witness Printer took 33.43 ms. Allocated memory is still 1.2 GB. Free memory was 894.7 MB in the beginning and 891.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:44:01,877 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 18 locations, 4 error locations. SAFE Result, 1.4s OverallTime, 14 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 57344 SDtfs, 53496 SDslu, 39360 SDs, 0 SdLazy, 135694 SolverSat, 24402 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1046 GetRequests, 923 SyntacticMatches, 59 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1785 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 3201 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 12 PerfectInterpolantSequences, 40/41 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 1 <= y) && 0 <= x - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 158.55 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 17.20 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.87 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 176.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 1497.39 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 894.7 MB in the end (delta: 245.8 MB). Peak memory consumption was 245.8 MB. Max. memory is 11.5 GB. * Witness Printer took 33.43 ms. Allocated memory is still 1.2 GB. Free memory was 894.7 MB in the beginning and 891.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...