./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY --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 b10c0555613e3e1e99ee574b69e31152fe0aa7f9 ................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 04:58:04,901 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:58:04,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:58:04,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:58:04,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:58:04,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:58:04,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:58:04,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:58:04,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:58:04,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:58:04,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:58:04,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:58:04,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:58:04,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:58:05,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:58:05,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:58:05,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:58:05,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:58:05,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:58:05,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:58:05,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:58:05,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:58:05,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:58:05,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:58:05,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:58:05,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:58:05,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:58:05,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:58:05,036 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:58:05,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:58:05,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:58:05,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:58:05,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:58:05,042 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:58:05,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:58:05,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:58:05,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:58:05,046 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:58:05,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:58:05,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:58:05,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:58:05,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:58:05,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:58:05,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:58:05,085 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:58:05,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:58:05,086 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:58:05,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:58:05,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:58:05,087 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:58:05,087 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:58:05,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:58:05,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:58:05,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:58:05,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:58:05,097 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:58:05,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:58:05,099 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:58:05,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:58:05,100 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:58:05,100 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:58:05,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:58:05,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:58:05,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:58:05,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:58:05,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:58:05,102 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:58:05,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:58:05,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:58:05,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b10c0555613e3e1e99ee574b69e31152fe0aa7f9 [2021-10-13 04:58:05,476 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:58:05,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:58:05,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:58:05,519 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:58:05,520 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:58:05,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2021-10-13 04:58:05,615 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/data/95e5625b2/133bd1012c9a43a98a84e7c86503ca29/FLAG3c0153904 [2021-10-13 04:58:06,170 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:58:06,171 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/sv-benchmarks/c/termination-crafted/NonTermination3-2.c [2021-10-13 04:58:06,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/data/95e5625b2/133bd1012c9a43a98a84e7c86503ca29/FLAG3c0153904 [2021-10-13 04:58:06,511 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/data/95e5625b2/133bd1012c9a43a98a84e7c86503ca29 [2021-10-13 04:58:06,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:58:06,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:58:06,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:58:06,519 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:58:06,523 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:58:06,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786a0246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06, skipping insertion in model container [2021-10-13 04:58:06,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:58:06,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:58:06,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:58:06,802 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:58:06,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:58:06,857 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:58:06,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06 WrapperNode [2021-10-13 04:58:06,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:58:06,860 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:58:06,860 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:58:06,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:58:06,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,879 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:58:06,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:58:06,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:58:06,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:58:06,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:58:06,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:58:06,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:58:06,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:58:06,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:06" (1/1) ... [2021-10-13 04:58:06,975 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:58:06,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:58:07,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:58:07,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:58:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 04:58:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:58:07,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:58:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 04:58:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 04:58:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 04:58:07,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:58:07,423 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 04:58:07,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:07 BoogieIcfgContainer [2021-10-13 04:58:07,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:58:07,427 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:58:07,427 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:58:07,453 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:58:07,453 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:07" (1/1) ... [2021-10-13 04:58:07,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:58:07,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:58:07,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2021-10-13 04:58:07,525 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2021-10-13 04:58:07,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:58:07,528 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:58:07,529 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:58:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:58:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:58:07,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:58:07,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2021-10-13 04:58:07,747 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2021-10-13 04:58:07,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 04:58:07,748 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:58:07,748 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:58:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:58:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:58:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:58:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2021-10-13 04:58:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-13 04:58:07,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:58:07,802 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:58:07,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:58:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:58:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 04:58:07,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:58:07,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2021-10-13 04:58:07,911 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2021-10-13 04:58:07,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:58:07,912 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:58:07,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:58:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:58:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:58:08,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:58:08,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2021-10-13 04:58:08,157 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-13 04:58:08,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 04:58:08,158 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2021-10-13 04:58:08,169 INFO L759 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-10-13 04:58:08,203 INFO L565 CodeCheckObserver]: Invariant with dag size 6 [2021-10-13 04:58:08,214 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-13 04:58:08,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:58:08 ImpRootNode [2021-10-13 04:58:08,215 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:58:08,216 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:58:08,217 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:58:08,217 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:58:08,218 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:07" (3/4) ... [2021-10-13 04:58:08,221 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 04:58:08,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-13 04:58:08,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 04:58:08,245 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 04:58:08,298 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:58:08,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:58:08,308 INFO L168 Benchmark]: Toolchain (without parser) took 1791.13 ms. Allocated memory is still 111.1 MB. Free memory was 73.0 MB in the beginning and 51.0 MB in the end (delta: 21.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:08,310 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 111.1 MB. Free memory was 89.6 MB in the beginning and 89.5 MB in the end (delta: 61.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:58:08,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.23 ms. Allocated memory is still 111.1 MB. Free memory was 72.8 MB in the beginning and 87.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:08,311 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.36 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:58:08,312 INFO L168 Benchmark]: Boogie Preprocessor took 50.90 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 85.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:08,313 INFO L168 Benchmark]: RCFGBuilder took 470.88 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 74.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:08,315 INFO L168 Benchmark]: CodeCheck took 788.89 ms. Allocated memory is still 111.1 MB. Free memory was 74.4 MB in the beginning and 53.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:08,315 INFO L168 Benchmark]: Witness Printer took 85.92 ms. Allocated memory is still 111.1 MB. Free memory was 53.1 MB in the beginning and 51.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:08,319 INFO L339 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. Started 1 CEGAR loops. OverallTime: 663.1ms, OverallIterations: 5, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 0 SDtfs, 42 SDslu, 0 SDs, 0 SdLazy, 186 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 164.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 138 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 185.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 14.3ms SsaConstructionTime, 78.6ms SatisfiabilityAnalysisTime, 151.0ms InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/5 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: 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: 13]: Loop Invariant Derived loop invariant: 1 <= n || n == 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 111.1 MB. Free memory was 89.6 MB in the beginning and 89.5 MB in the end (delta: 61.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.23 ms. Allocated memory is still 111.1 MB. Free memory was 72.8 MB in the beginning and 87.6 MB in the end (delta: -14.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.36 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.90 ms. Allocated memory is still 111.1 MB. Free memory was 86.2 MB in the beginning and 85.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 470.88 ms. Allocated memory is still 111.1 MB. Free memory was 85.2 MB in the beginning and 74.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 788.89 ms. Allocated memory is still 111.1 MB. Free memory was 74.4 MB in the beginning and 53.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 85.92 ms. Allocated memory is still 111.1 MB. Free memory was 53.1 MB in the beginning and 51.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-13 04:58:08,362 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be8ed7d0-8d10-474e-af65-cbb79243153c/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...