./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/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 0.1.24-6b5699a [2019-11-26 02:56:00,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:56:00,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:56:00,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:56:00,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:56:00,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:56:00,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:56:00,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:56:00,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:56:00,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:56:00,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:56:00,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:56:00,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:56:00,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:56:00,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:56:00,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:56:00,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:56:00,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:56:00,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:56:00,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:56:00,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:56:00,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:56:00,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:56:00,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:56:00,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:56:00,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:56:00,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:56:00,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:56:00,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:56:00,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:56:00,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:56:00,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:56:00,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:56:00,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:56:00,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:56:00,911 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:56:00,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:56:00,912 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:56:00,912 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:56:00,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:56:00,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:56:00,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-26 02:56:00,927 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:56:00,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:56:00,928 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:56:00,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 02:56:00,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 02:56:00,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 02:56:00,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:56:00,929 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 02:56:00,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:56:00,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:56:00,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:56:00,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:56:00,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:56:00,930 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 02:56:00,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:56:00,930 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 02:56:00,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:56:00,931 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 02:56:00,931 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 02:56:00,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:56:00,931 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:56:00,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 02:56:00,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:56:00,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:56:00,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:56:00,932 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 02:56:00,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:56:00,933 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:56:00,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/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 [2019-11-26 02:56:01,070 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:56:01,081 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:56:01,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:56:01,085 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:56:01,085 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:56:01,086 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-11-26 02:56:01,135 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/data/2cd333e5f/bfed4aeddc0c4c12b4d480bfd0b35031/FLAG19446f3ce [2019-11-26 02:56:01,553 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:56:01,554 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2019-11-26 02:56:01,560 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/data/2cd333e5f/bfed4aeddc0c4c12b4d480bfd0b35031/FLAG19446f3ce [2019-11-26 02:56:01,576 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/data/2cd333e5f/bfed4aeddc0c4c12b4d480bfd0b35031 [2019-11-26 02:56:01,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:56:01,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:56:01,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:01,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:56:01,587 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:56:01,588 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@746c933c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01, skipping insertion in model container [2019-11-26 02:56:01,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:56:01,613 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:56:01,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:01,782 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:56:01,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:56:01,869 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:56:01,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01 WrapperNode [2019-11-26 02:56:01,870 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:56:01,871 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:01,871 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:56:01,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:56:01,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:56:01,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:56:01,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:56:01,901 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:56:01,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... [2019-11-26 02:56:01,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:56:01,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:56:01,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:56:01,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:56:01,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:56:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/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 [2019-11-26 02:56:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:56:01,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:56:02,194 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:56:02,194 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-26 02:56:02,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:02 BoogieIcfgContainer [2019-11-26 02:56:02,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:56:02,196 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 02:56:02,196 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 02:56:02,206 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 02:56:02,206 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:02" (1/1) ... [2019-11-26 02:56:02,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:56:02,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-11-26 02:56:02,249 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-26 02:56:02,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:56:02,252 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:02,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2019-11-26 02:56:02,417 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2019-11-26 02:56:02,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:56:02,417 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:02,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:02,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2019-11-26 02:56:02,611 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2019-11-26 02:56:02,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:56:02,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:02,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2019-11-26 02:56:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2019-11-26 02:56:02,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-26 02:56:02,817 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:03,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:03,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2019-11-26 02:56:03,055 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2019-11-26 02:56:03,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:56:03,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:03,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:03,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2019-11-26 02:56:03,187 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2019-11-26 02:56:03,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:56:03,188 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:03,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:03,210 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:03,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:03,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2019-11-26 02:56:03,389 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2019-11-26 02:56:03,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:56:03,395 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-26 02:56:03,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2019-11-26 02:56:03,603 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2019-11-26 02:56:03,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:56:03,603 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 02:56:03,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:56:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:56:03,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 02:56:03,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2019-11-26 02:56:03,783 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-11-26 02:56:03,784 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:56:03,784 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2019-11-26 02:56:03,798 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-11-26 02:56:03,842 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2019-11-26 02:56:03,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 02:56:03 ImpRootNode [2019-11-26 02:56:03,851 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 02:56:03,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:56:03,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:56:03,852 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:56:03,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:56:02" (3/4) ... [2019-11-26 02:56:03,856 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:56:03,864 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-26 02:56:03,864 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-26 02:56:03,865 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:56:03,907 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d00689f5-4c8a-42c0-ba12-4988a645755e/bin/ukojak/witness.graphml [2019-11-26 02:56:03,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:56:03,909 INFO L168 Benchmark]: Toolchain (without parser) took 2327.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.4 MB in the beginning and 948.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 139.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:03,909 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:56:03,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:03,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:56:03,911 INFO L168 Benchmark]: Boogie Preprocessor took 17.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:56:03,911 INFO L168 Benchmark]: RCFGBuilder took 277.81 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:03,912 INFO L168 Benchmark]: CodeCheck took 1654.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.7 MB in the end (delta: 159.0 MB). Peak memory consumption was 159.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:03,913 INFO L168 Benchmark]: Witness Printer took 56.06 ms. Allocated memory is still 1.2 GB. Free memory was 953.7 MB in the beginning and 948.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:56:03,915 INFO L335 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, 12 locations, 4 error locations. Result: SAFE, OverallTime: 1.5s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 768 SDtfs, 1558 SDslu, 2124 SDs, 0 SdLazy, 4692 SolverSat, 922 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 484 GetRequests, 422 SyntacticMatches, 14 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 610 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 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: 20]: 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - 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 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -179.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 277.81 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * CodeCheck took 1654.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 953.7 MB in the end (delta: 159.0 MB). Peak memory consumption was 159.0 MB. Max. memory is 11.5 GB. * Witness Printer took 56.06 ms. Allocated memory is still 1.2 GB. Free memory was 953.7 MB in the beginning and 948.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...