./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_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_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/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 ef49038d2ab74dd97b86bf2af92359124ff338d3 ................................................................................................................................................................................................................................. 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 12:29:03,152 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 12:29:03,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 12:29:03,161 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 12:29:03,161 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 12:29:03,162 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 12:29:03,162 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 12:29:03,163 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 12:29:03,164 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 12:29:03,164 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 12:29:03,164 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 12:29:03,164 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 12:29:03,165 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 12:29:03,165 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 12:29:03,166 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 12:29:03,166 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 12:29:03,167 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 12:29:03,168 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 12:29:03,169 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 12:29:03,170 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 12:29:03,171 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 12:29:03,172 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 12:29:03,173 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 12:29:03,173 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 12:29:03,174 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 12:29:03,174 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 12:29:03,175 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 12:29:03,175 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 12:29:03,175 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 12:29:03,176 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 12:29:03,176 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 12:29:03,176 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 12:29:03,176 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 12:29:03,177 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 12:29:03,177 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 12:29:03,177 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 12:29:03,178 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-23 12:29:03,187 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 12:29:03,187 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 12:29:03,188 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 12:29:03,188 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-11-23 12:29:03,188 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 12:29:03,188 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 12:29:03,189 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 12:29:03,189 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 12:29:03,189 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 12:29:03,189 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 12:29:03,189 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 12:29:03,189 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 12:29:03,189 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 12:29:03,189 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-23 12:29:03,190 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 12:29:03,190 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 12:29:03,190 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 12:29:03,190 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-23 12:29:03,190 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-23 12:29:03,190 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 12:29:03,190 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 12:29:03,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-23 12:29:03,191 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 12:29:03,191 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 12:29:03,191 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 12:29:03,191 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-23 12:29:03,191 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 12:29:03,191 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 12:29:03,191 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_e9acb164-14a4-438a-bfc6-ee024bd2243a/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 -> ef49038d2ab74dd97b86bf2af92359124ff338d3 [2018-11-23 12:29:03,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 12:29:03,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 12:29:03,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 12:29:03,223 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 12:29:03,223 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 12:29:03,223 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2018-11-23 12:29:03,258 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/data/f7b134cef/de96394861384cdf8088c4f87fe5a395/FLAG4150587e5 [2018-11-23 12:29:03,680 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 12:29:03,681 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/sv-benchmarks/c/termination-crafted-lit/ChenFlurMukhopadhyay-SAS2012-Ex2.20_true-termination_true-no-overflow.c [2018-11-23 12:29:03,686 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/data/f7b134cef/de96394861384cdf8088c4f87fe5a395/FLAG4150587e5 [2018-11-23 12:29:03,697 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/data/f7b134cef/de96394861384cdf8088c4f87fe5a395 [2018-11-23 12:29:03,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 12:29:03,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 12:29:03,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 12:29:03,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 12:29:03,703 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 12:29:03,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@125e25d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03, skipping insertion in model container [2018-11-23 12:29:03,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 12:29:03,722 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 12:29:03,826 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:29:03,828 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 12:29:03,837 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 12:29:03,844 INFO L195 MainTranslator]: Completed translation [2018-11-23 12:29:03,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03 WrapperNode [2018-11-23 12:29:03,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 12:29:03,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 12:29:03,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 12:29:03,845 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 12:29:03,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 12:29:03,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 12:29:03,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 12:29:03,863 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 12:29:03,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... [2018-11-23 12:29:03,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 12:29:03,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 12:29:03,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 12:29:03,874 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 12:29:03,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:29:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/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 12:29:03,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 12:29:03,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 12:29:04,047 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 12:29:04,048 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 12:29:04,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:29:04 BoogieIcfgContainer [2018-11-23 12:29:04,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 12:29:04,049 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-23 12:29:04,049 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-23 12:29:04,056 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-23 12:29:04,057 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:29:04" (1/1) ... [2018-11-23 12:29:04,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 12:29:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 12:29:04,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-11-23 12:29:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-11-23 12:29:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-23 12:29:04,086 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 12:29:04,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:29:04,204 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 12:29:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 12:29:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2018-11-23 12:29:04,245 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2018-11-23 12:29:04,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-23 12:29:04,245 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 12:29:04,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:29:04,262 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 12:29:04,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 12:29:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 8 states and 11 transitions. [2018-11-23 12:29:04,368 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 11 transitions. [2018-11-23 12:29:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-23 12:29:04,368 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-23 12:29:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 12:29:04,398 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 12:29:04,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-23 12:29:04,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-11-23 12:29:04,456 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-11-23 12:29:04,456 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 12:29:04,456 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2018-11-23 12:29:04,463 INFO L775 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2018-11-23 12:29:04,473 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-23 12:29:04,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:29:04 ImpRootNode [2018-11-23 12:29:04,479 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-23 12:29:04,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 12:29:04,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 12:29:04,480 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 12:29:04,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:29:04" (3/4) ... [2018-11-23 12:29:04,482 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 12:29:04,489 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 12:29:04,489 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 12:29:04,489 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 12:29:04,517 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e9acb164-14a4-438a-bfc6-ee024bd2243a/bin-2019/ukojak/witness.graphml [2018-11-23 12:29:04,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 12:29:04,518 INFO L168 Benchmark]: Toolchain (without parser) took 817.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -123.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:04,519 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 12:29:04,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.06 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. [2018-11-23 12:29:04,519 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.60 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. [2018-11-23 12:29:04,520 INFO L168 Benchmark]: Boogie Preprocessor took 10.66 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. [2018-11-23 12:29:04,520 INFO L168 Benchmark]: RCFGBuilder took 174.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:04,520 INFO L168 Benchmark]: CodeCheck took 430.81 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:04,521 INFO L168 Benchmark]: Witness Printer took 37.70 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 12:29:04,523 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, 10 locations, 2 error locations. SAFE Result, 0.3s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 14 SDslu, 0 SDs, 0 SdLazy, 104 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 89 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 154 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: x <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.06 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 17.60 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 10.66 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 174.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * CodeCheck took 430.81 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 37.70 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: 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...