./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_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_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/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 f9de9875f09e594325a645528f016ce12ac5c646 ........................................................................................................................................................................................................................................................................................... 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 04:35:44,148 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:35:44,150 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:35:44,158 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:35:44,158 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:35:44,159 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:35:44,160 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:35:44,161 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:35:44,163 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:35:44,163 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:35:44,164 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:35:44,164 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:35:44,165 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:35:44,165 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:35:44,167 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:35:44,168 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:35:44,168 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:35:44,169 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:35:44,171 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:35:44,172 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:35:44,173 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:35:44,173 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:35:44,175 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:35:44,175 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:35:44,176 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:35:44,176 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:35:44,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:35:44,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:35:44,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:35:44,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:35:44,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:35:44,180 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:35:44,180 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:35:44,180 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:35:44,181 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:35:44,181 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:35:44,182 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-23 04:35:44,192 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:35:44,192 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:35:44,193 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:35:44,193 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 04:35:44,194 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 04:35:44,194 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 04:35:44,194 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:35:44,194 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 04:35:44,194 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:35:44,194 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:35:44,195 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:35:44,195 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:35:44,195 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:35:44,195 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 04:35:44,195 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:35:44,195 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:35:44,195 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:35:44,196 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 04:35:44,196 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 04:35:44,196 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:35:44,196 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:35:44,196 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 04:35:44,196 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:35:44,196 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:35:44,197 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:35:44,197 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 04:35:44,197 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:35:44,197 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:35:44,197 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_291bc494-0d5c-449c-ae78-c7951f1909a5/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 -> f9de9875f09e594325a645528f016ce12ac5c646 [2018-11-23 04:35:44,224 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:35:44,234 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:35:44,237 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:35:44,238 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:35:44,238 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:35:44,239 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-23 04:35:44,286 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/data/3516196c4/2c500d65cfcf48f0bb6cacdae7fbd51e/FLAGd9f364508 [2018-11-23 04:35:44,642 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:35:44,642 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-23 04:35:44,647 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/data/3516196c4/2c500d65cfcf48f0bb6cacdae7fbd51e/FLAGd9f364508 [2018-11-23 04:35:44,662 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/data/3516196c4/2c500d65cfcf48f0bb6cacdae7fbd51e [2018-11-23 04:35:44,664 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:35:44,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:35:44,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:35:44,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:35:44,669 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:35:44,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a557d5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44, skipping insertion in model container [2018-11-23 04:35:44,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:35:44,694 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:35:44,827 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:35:44,830 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:35:44,843 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:35:44,854 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:35:44,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44 WrapperNode [2018-11-23 04:35:44,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:35:44,856 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:35:44,856 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:35:44,856 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:35:44,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,868 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:35:44,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:35:44,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:35:44,883 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:35:44,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... [2018-11-23 04:35:44,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:35:44,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:35:44,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:35:44,900 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:35:44,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:35:44" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/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 04:35:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:35:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:35:45,181 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:35:45,182 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 04:35:45,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:35:45 BoogieIcfgContainer [2018-11-23 04:35:45,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:35:45,183 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 04:35:45,183 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 04:35:45,193 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 04:35:45,193 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:35:45" (1/1) ... [2018-11-23 04:35:45,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:35:45,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:45,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2018-11-23 04:35:45,238 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-23 04:35:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-23 04:35:45,241 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:45,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:45,341 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 04:35:45,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:45,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2018-11-23 04:35:45,422 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2018-11-23 04:35:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-23 04:35:45,423 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:45,451 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 04:35:45,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:45,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2018-11-23 04:35:45,540 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2018-11-23 04:35:45,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 04:35:45,542 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:45,584 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 04:35:45,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:45,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2018-11-23 04:35:45,708 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2018-11-23 04:35:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-23 04:35:45,708 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:45,741 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 04:35:45,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:45,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2018-11-23 04:35:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2018-11-23 04:35:45,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-23 04:35:45,928 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:45,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:45,989 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 04:35:46,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:46,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 31 states and 50 transitions. [2018-11-23 04:35:46,231 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 50 transitions. [2018-11-23 04:35:46,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 04:35:46,231 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:46,263 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 04:35:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:46,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 59 transitions. [2018-11-23 04:35:46,545 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 59 transitions. [2018-11-23 04:35:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 04:35:46,545 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:46,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 04:35:46,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:46,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 37 states and 61 transitions. [2018-11-23 04:35:46,672 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 61 transitions. [2018-11-23 04:35:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 04:35:46,672 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:46,696 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 38 states and 62 transitions. [2018-11-23 04:35:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 62 transitions. [2018-11-23 04:35:46,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 04:35:46,719 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:46,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:47,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:47,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 41 states and 68 transitions. [2018-11-23 04:35:47,007 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 68 transitions. [2018-11-23 04:35:47,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-23 04:35:47,008 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:47,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:47,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 44 states and 73 transitions. [2018-11-23 04:35:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2018-11-23 04:35:47,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 04:35:47,241 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 04:35:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:35:47,273 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:35:47,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 04:35:47,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2018-11-23 04:35:47,343 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-11-23 04:35:47,343 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 04:35:47,343 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2018-11-23 04:35:47,350 INFO L775 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2018-11-23 04:35:47,381 INFO L579 CodeCheckObserver]: Invariant with dag size 8 [2018-11-23 04:35:47,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 04:35:47 ImpRootNode [2018-11-23 04:35:47,387 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 04:35:47,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:35:47,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:35:47,387 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:35:47,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:35:45" (3/4) ... [2018-11-23 04:35:47,390 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 04:35:47,395 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 04:35:47,396 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 04:35:47,396 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 04:35:47,425 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_291bc494-0d5c-449c-ae78-c7951f1909a5/bin-2019/ukojak/witness.graphml [2018-11-23 04:35:47,425 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:35:47,426 INFO L168 Benchmark]: Toolchain (without parser) took 2761.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 216.0 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -135.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:47,427 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:35:47,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.27 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:47,427 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.15 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 940.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:47,427 INFO L168 Benchmark]: Boogie Preprocessor took 16.21 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:35:47,428 INFO L168 Benchmark]: RCFGBuilder took 282.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:47,428 INFO L168 Benchmark]: CodeCheck took 2203.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 95.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:47,428 INFO L168 Benchmark]: Witness Printer took 38.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-23 04:35:47,430 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, 19 locations, 6 error locations. SAFE Result, 2.1s OverallTime, 12 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6144 SDtfs, 13556 SDslu, 23072 SDs, 0 SdLazy, 35858 SolverSat, 7170 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 819 GetRequests, 688 SyntacticMatches, 31 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4770 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1412 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 15/15 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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: 26]: 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 - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && d <= 2147483647) && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 977.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 189.27 ms. Allocated memory is still 1.0 GB. Free memory was 956.4 MB in the beginning and 945.7 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 27.15 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 940.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.21 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 282.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -190.1 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * CodeCheck took 2203.98 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.5 MB). Peak memory consumption was 95.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...