./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_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_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/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 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 .......................................................................................................................................................................................................................................................................... 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 13:48:30,629 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:48:30,631 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:48:30,638 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:48:30,638 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:48:30,639 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:48:30,639 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:48:30,640 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:48:30,641 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:48:30,642 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:48:30,642 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:48:30,643 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:48:30,643 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:48:30,644 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:48:30,645 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:48:30,645 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:48:30,646 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:48:30,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:48:30,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:48:30,649 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:48:30,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:48:30,650 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:48:30,652 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:48:30,652 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:48:30,652 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:48:30,653 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:48:30,654 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:48:30,654 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:48:30,655 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:48:30,655 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:48:30,656 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:48:30,656 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:48:30,656 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:48:30,656 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:48:30,657 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:48:30,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:48:30,657 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-18 13:48:30,667 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:48:30,668 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:48:30,668 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:48:30,668 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:48:30,669 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:48:30,669 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:48:30,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:48:30,669 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:48:30,669 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:48:30,669 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:48:30,669 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:48:30,670 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:48:30,670 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:48:30,670 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 13:48:30,670 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:48:30,670 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:48:30,670 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:48:30,670 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 13:48:30,670 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 13:48:30,670 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:48:30,671 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:48:30,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 13:48:30,671 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:48:30,671 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:48:30,671 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:48:30,671 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 13:48:30,671 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:48:30,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:48:30,671 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_07f42551-730c-420f-91b8-10367c99308d/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 -> 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 [2018-11-18 13:48:30,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:48:30,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:48:30,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:48:30,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:48:30,705 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:48:30,706 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c [2018-11-18 13:48:30,748 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/data/42babaf03/4715435ae735431da13789ebc7fcef5a/FLAG0566de24b [2018-11-18 13:48:31,152 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:48:31,152 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1_true-termination_true-no-overflow.c [2018-11-18 13:48:31,156 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/data/42babaf03/4715435ae735431da13789ebc7fcef5a/FLAG0566de24b [2018-11-18 13:48:31,166 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/data/42babaf03/4715435ae735431da13789ebc7fcef5a [2018-11-18 13:48:31,169 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:48:31,169 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:48:31,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:48:31,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:48:31,172 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:48:31,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31, skipping insertion in model container [2018-11-18 13:48:31,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,180 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:48:31,190 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:48:31,292 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:48:31,294 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:48:31,304 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:48:31,312 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:48:31,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31 WrapperNode [2018-11-18 13:48:31,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:48:31,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:48:31,313 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:48:31,313 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:48:31,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:48:31,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:48:31,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:48:31,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:48:31,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,340 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:48:31,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:48:31,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:48:31,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:48:31,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/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 13:48:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:48:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:48:31,515 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:48:31,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:31 BoogieIcfgContainer [2018-11-18 13:48:31,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:48:31,515 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 13:48:31,515 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 13:48:31,522 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 13:48:31,522 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:31" (1/1) ... [2018-11-18 13:48:31,529 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:31,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:31,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-11-18 13:48:31,551 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-18 13:48:31,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 13:48:31,552 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:31,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:31,641 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 13:48:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:31,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2018-11-18 13:48:31,682 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2018-11-18 13:48:31,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 13:48:31,682 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:31,713 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 13:48:31,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:31,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2018-11-18 13:48:31,828 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2018-11-18 13:48:31,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 13:48:31,830 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:31,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:31,854 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 13:48:31,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 24 states and 36 transitions. [2018-11-18 13:48:31,957 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2018-11-18 13:48:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 13:48:31,957 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:31,987 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 13:48:32,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2018-11-18 13:48:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2018-11-18 13:48:32,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:48:32,091 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:32,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:32,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2018-11-18 13:48:32,157 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2018-11-18 13:48:32,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:48:32,158 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:32,172 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:32,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:32,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 27 states and 41 transitions. [2018-11-18 13:48:32,238 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2018-11-18 13:48:32,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:48:32,238 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:32,249 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 13:48:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:32,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2018-11-18 13:48:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2018-11-18 13:48:32,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:48:32,350 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:32,374 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:32,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2018-11-18 13:48:32,404 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-11-18 13:48:32,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:48:32,405 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2018-11-18 13:48:32,411 INFO L775 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-18 13:48:32,449 INFO L579 CodeCheckObserver]: Invariant with dag size 1 [2018-11-18 13:48:32,451 INFO L579 CodeCheckObserver]: Invariant with dag size 6 [2018-11-18 13:48:32,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 01:48:32 ImpRootNode [2018-11-18 13:48:32,455 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 13:48:32,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:48:32,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:48:32,456 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:48:32,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:31" (3/4) ... [2018-11-18 13:48:32,458 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:48:32,465 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 13:48:32,466 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:48:32,466 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:48:32,494 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_07f42551-730c-420f-91b8-10367c99308d/bin-2019/ukojak/witness.graphml [2018-11-18 13:48:32,494 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:48:32,495 INFO L168 Benchmark]: Toolchain (without parser) took 1326.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 959.2 MB in the beginning and 988.1 MB in the end (delta: -28.9 MB). Peak memory consumption was 109.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:32,496 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:48:32,496 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.84 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:32,497 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.49 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:32,497 INFO L168 Benchmark]: Boogie Preprocessor took 9.80 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:48:32,497 INFO L168 Benchmark]: RCFGBuilder took 173.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:32,497 INFO L168 Benchmark]: CodeCheck took 939.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 132.8 MB). Peak memory consumption was 132.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:32,497 INFO L168 Benchmark]: Witness Printer took 39.19 ms. Allocated memory is still 1.2 GB. Free memory was 990.8 MB in the beginning and 988.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:32,499 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, 17 locations, 4 error locations. SAFE Result, 0.8s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1024 SDtfs, 2088 SDslu, 2892 SDs, 0 SdLazy, 4710 SolverSat, 870 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 569 GetRequests, 503 SyntacticMatches, 28 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 566 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1124 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 14/14 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.84 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 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 18.49 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 9.80 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 173.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 939.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.8 MB in the end (delta: 132.8 MB). Peak memory consumption was 132.8 MB. Max. memory is 11.5 GB. * Witness Printer took 39.19 ms. Allocated memory is still 1.2 GB. Free memory was 990.8 MB in the beginning and 988.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...