./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/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 bc157475d6c321934f68f6b441d83c0582720461 ................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:32:15,475 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:32:15,476 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:32:15,482 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:32:15,483 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:32:15,483 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:32:15,484 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:32:15,485 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:32:15,486 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:32:15,487 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:32:15,487 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:32:15,488 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:32:15,488 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:32:15,489 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:32:15,490 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:32:15,490 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:32:15,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:32:15,492 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:32:15,493 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:32:15,494 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:32:15,495 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:32:15,496 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:32:15,497 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:32:15,497 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:32:15,497 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:32:15,498 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:32:15,498 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:32:15,499 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:32:15,499 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:32:15,500 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:32:15,500 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:32:15,501 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:32:15,501 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:32:15,501 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:32:15,502 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:32:15,502 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:32:15,502 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-23 03:32:15,511 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:32:15,512 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:32:15,512 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:32:15,512 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 03:32:15,513 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:32:15,513 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:32:15,513 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:32:15,513 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 03:32:15,513 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:32:15,513 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:32:15,514 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:32:15,514 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:32:15,514 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:32:15,514 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 03:32:15,514 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:32:15,514 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:32:15,514 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:32:15,514 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 03:32:15,515 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 03:32:15,515 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:32:15,515 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:32:15,515 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 03:32:15,515 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:32:15,515 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:32:15,515 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:32:15,515 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 03:32:15,516 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:32:15,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:32:15,516 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_e6b64b25-a042-4187-b542-9f43328f03af/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 -> bc157475d6c321934f68f6b441d83c0582720461 [2018-11-23 03:32:15,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:32:15,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:32:15,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:32:15,550 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:32:15,550 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:32:15,551 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c [2018-11-23 03:32:15,586 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/data/53907c3f2/d9f4a4dbdd714e3585635ac70c8096f1/FLAG567b364f4 [2018-11-23 03:32:15,983 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:32:15,983 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1_true-termination_true-no-overflow.c [2018-11-23 03:32:15,987 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/data/53907c3f2/d9f4a4dbdd714e3585635ac70c8096f1/FLAG567b364f4 [2018-11-23 03:32:15,995 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/data/53907c3f2/d9f4a4dbdd714e3585635ac70c8096f1 [2018-11-23 03:32:15,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:32:16,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:32:16,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:32:16,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:32:16,003 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:32:16,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:15" (1/1) ... [2018-11-23 03:32:16,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@346a68e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16, skipping insertion in model container [2018-11-23 03:32:16,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:32:15" (1/1) ... [2018-11-23 03:32:16,010 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:32:16,022 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:32:16,119 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:32:16,121 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:32:16,130 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:32:16,139 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:32:16,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16 WrapperNode [2018-11-23 03:32:16,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:32:16,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:32:16,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:32:16,140 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:32:16,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:32:16,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:32:16,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:32:16,166 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:32:16,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,174 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:32:16,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:32:16,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:32:16,180 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:32:16,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:32:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/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 [2018-11-23 03:32:16,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:32:16,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:32:16,400 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:32:16,400 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 03:32:16,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:16 BoogieIcfgContainer [2018-11-23 03:32:16,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:32:16,401 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 03:32:16,401 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 03:32:16,411 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 03:32:16,411 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:16" (1/1) ... [2018-11-23 03:32:16,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:32:16,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:32:16,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2018-11-23 03:32:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2018-11-23 03:32:16,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-23 03:32:16,455 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:32:16,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:32:16,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:32:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:32:16,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-11-23 03:32:16,583 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-11-23 03:32:16,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-23 03:32:16,583 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:32:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:32:16,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:32:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:32:16,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2018-11-23 03:32:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-11-23 03:32:16,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 03:32:16,625 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:32:16,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:32:16,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:32:16,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:32:16,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-11-23 03:32:16,739 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-11-23 03:32:16,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 03:32:16,740 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:32:16,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:32:16,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:32:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:32:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2018-11-23 03:32:16,846 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-23 03:32:16,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 03:32:16,847 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:32:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:32:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:32:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:32:17,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2018-11-23 03:32:17,145 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2018-11-23 03:32:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 03:32:17,145 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 03:32:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:32:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:32:17,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 03:32:17,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2018-11-23 03:32:17,333 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-11-23 03:32:17,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:32:17,333 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2018-11-23 03:32:17,340 INFO L775 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-23 03:32:17,365 INFO L579 CodeCheckObserver]: Invariant with dag size 8 [2018-11-23 03:32:17,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:32:17 ImpRootNode [2018-11-23 03:32:17,371 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 03:32:17,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:32:17,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:32:17,372 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:32:17,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:32:16" (3/4) ... [2018-11-23 03:32:17,374 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:32:17,381 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 03:32:17,381 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 03:32:17,381 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 03:32:17,409 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e6b64b25-a042-4187-b542-9f43328f03af/bin-2019/ukojak/witness.graphml [2018-11-23 03:32:17,409 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:32:17,410 INFO L168 Benchmark]: Toolchain (without parser) took 1411.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 954.4 MB in the beginning and 970.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 113.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:32:17,411 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:32:17,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.20 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:32:17,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.14 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:32:17,412 INFO L168 Benchmark]: Boogie Preprocessor took 13.49 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:32:17,413 INFO L168 Benchmark]: RCFGBuilder took 220.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:32:17,413 INFO L168 Benchmark]: CodeCheck took 970.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.4 MB in the end (delta: 138.8 MB). Peak memory consumption was 138.8 MB. Max. memory is 11.5 GB. [2018-11-23 03:32:17,414 INFO L168 Benchmark]: Witness Printer took 37.91 ms. Allocated memory is still 1.2 GB. Free memory was 973.4 MB in the beginning and 970.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:32:17,416 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, 16 locations, 4 error locations. SAFE Result, 0.9s OverallTime, 7 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 128 SDtfs, 232 SDslu, 0 SDs, 0 SdLazy, 1070 SolverSat, 278 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 263 SyntacticMatches, 12 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 1156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 0/6 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 17]: Loop Invariant Derived loop invariant: debug == 0 && 0 <= x + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.20 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.7 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 26.14 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.49 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 220.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -171.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * CodeCheck took 970.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 973.4 MB in the end (delta: 138.8 MB). Peak memory consumption was 138.8 MB. Max. memory is 11.5 GB. * Witness Printer took 37.91 ms. Allocated memory is still 1.2 GB. Free memory was 973.4 MB in the beginning and 970.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...