./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN --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 d2c52950705981f02a61486ceb6173784be0a8c666ec3c253f382bfe7cb75659 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 05:19:32,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 05:19:32,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 05:19:32,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 05:19:32,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 05:19:32,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 05:19:32,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 05:19:32,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 05:19:32,853 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 05:19:32,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 05:19:32,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 05:19:32,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 05:19:32,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 05:19:32,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 05:19:32,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 05:19:32,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 05:19:32,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 05:19:32,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 05:19:32,878 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 05:19:32,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 05:19:32,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 05:19:32,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 05:19:32,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 05:19:32,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 05:19:32,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 05:19:32,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 05:19:32,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 05:19:32,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 05:19:32,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 05:19:32,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 05:19:32,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 05:19:32,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 05:19:32,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 05:19:32,913 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 05:19:32,914 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 05:19:32,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 05:19:32,916 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 05:19:32,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 05:19:32,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 05:19:32,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 05:19:32,918 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 05:19:32,919 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-21 05:19:32,948 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 05:19:32,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 05:19:32,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 05:19:32,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 05:19:32,950 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 05:19:32,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 05:19:32,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 05:19:32,951 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 05:19:32,951 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 05:19:32,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 05:19:32,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 05:19:32,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 05:19:32,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 05:19:32,952 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 05:19:32,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 05:19:32,953 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 05:19:32,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 05:19:32,953 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 05:19:32,953 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 05:19:32,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 05:19:32,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:19:32,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 05:19:32,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 05:19:32,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 05:19:32,954 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 05:19:32,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 05:19:32,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 05:19:32,955 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_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2c52950705981f02a61486ceb6173784be0a8c666ec3c253f382bfe7cb75659 [2021-11-21 05:19:33,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 05:19:33,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 05:19:33,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 05:19:33,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 05:19:33,371 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 05:19:33,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2021-11-21 05:19:33,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/data/81e63e033/df84f50615f54d5baca80bdb010e4133/FLAGc8e69e775 [2021-11-21 05:19:33,983 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 05:19:33,987 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-LICS2004-Fig2.c [2021-11-21 05:19:33,995 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/data/81e63e033/df84f50615f54d5baca80bdb010e4133/FLAGc8e69e775 [2021-11-21 05:19:34,331 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/data/81e63e033/df84f50615f54d5baca80bdb010e4133 [2021-11-21 05:19:34,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 05:19:34,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 05:19:34,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 05:19:34,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 05:19:34,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 05:19:34,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,365 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60cd4f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34, skipping insertion in model container [2021-11-21 05:19:34,365 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 05:19:34,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 05:19:34,636 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:19:34,646 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 05:19:34,668 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:19:34,690 INFO L208 MainTranslator]: Completed translation [2021-11-21 05:19:34,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34 WrapperNode [2021-11-21 05:19:34,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 05:19:34,692 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 05:19:34,692 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 05:19:34,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 05:19:34,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,730 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 30 [2021-11-21 05:19:34,731 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 05:19:34,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 05:19:34,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 05:19:34,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 05:19:34,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 05:19:34,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 05:19:34,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 05:19:34,770 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 05:19:34,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:19:34" (1/1) ... [2021-11-21 05:19:34,780 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:19:34,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 05:19:34,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 05:19:34,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 05:19:34,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 05:19:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 05:19:34,919 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 05:19:34,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 05:19:35,057 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 05:19:35,080 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 05:19:35,080 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-21 05:19:35,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:19:35 BoogieIcfgContainer [2021-11-21 05:19:35,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 05:19:35,084 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 05:19:35,084 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 05:19:35,094 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 05:19:35,095 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:19:35" (1/1) ... [2021-11-21 05:19:35,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 05:19:35,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:19:35,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2021-11-21 05:19:35,188 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-21 05:19:35,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:19:35,191 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:19:35,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:19:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:19:35,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:19:35,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:19:35,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-11-21 05:19:35,403 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-21 05:19:35,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:19:35,404 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:19:35,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:19:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:19:35,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:19:35,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:19:35,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 31 transitions. [2021-11-21 05:19:35,765 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2021-11-21 05:19:35,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:19:35,765 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:19:35,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:19:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:19:35,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:19:36,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:19:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2021-11-21 05:19:36,052 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2021-11-21 05:19:36,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:19:36,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:19:36,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:19:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:19:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:19:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:19:36,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2021-11-21 05:19:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2021-11-21 05:19:36,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:19:36,317 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:19:36,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:19:36,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:19:36,343 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 05:19:36,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:19:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:19:36,419 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 05:19:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:19:36,455 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2021-11-21 05:19:36,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 05:19:36 ImpRootNode [2021-11-21 05:19:36,504 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 05:19:36,505 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 05:19:36,505 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 05:19:36,506 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 05:19:36,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:19:35" (3/4) ... [2021-11-21 05:19:36,509 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 05:19:36,565 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 05:19:36,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 05:19:36,566 INFO L158 Benchmark]: Toolchain (without parser) took 2230.46ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 50.4MB in the beginning and 54.9MB in the end (delta: -4.5MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-11-21 05:19:36,570 INFO L158 Benchmark]: CDTParser took 1.48ms. Allocated memory is still 83.9MB. Free memory was 63.4MB in the beginning and 63.3MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:19:36,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.59ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 50.2MB in the beginning and 82.3MB in the end (delta: -32.1MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-21 05:19:36,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.02ms. Allocated memory is still 104.9MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:19:36,575 INFO L158 Benchmark]: Boogie Preprocessor took 34.02ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 79.9MB in the end (delta: 830.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 05:19:36,576 INFO L158 Benchmark]: RCFGBuilder took 314.16ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 70.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 05:19:36,578 INFO L158 Benchmark]: CodeCheck took 1420.02ms. Allocated memory is still 104.9MB. Free memory was 70.5MB in the beginning and 56.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-21 05:19:36,579 INFO L158 Benchmark]: Witness Printer took 60.60ms. Allocated memory is still 104.9MB. Free memory was 56.5MB in the beginning and 54.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 05:19:36,582 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 33 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 123 IncrementalHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 22 mSDtfsCounter, 123 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 22]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x = __VERIFIER_nondet_int(); [L13] int y = __VERIFIER_nondet_int(); [L14] COND TRUE x > 0 && y > 0 [L15] int old_x = x; [L16] int old_y = y; [L17] COND FALSE !(__VERIFIER_nondet_int()) [L21] EXPR old_y - 2 [L21] x = old_y - 2 VAL [old_x=2147483647, old_y=1, x=-1, y=1] [L22] old_x + 1 VAL [old_x=2147483647, old_y=1, x=-1, y=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.48ms. Allocated memory is still 83.9MB. Free memory was 63.4MB in the beginning and 63.3MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.59ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 50.2MB in the beginning and 82.3MB in the end (delta: -32.1MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.02ms. Allocated memory is still 104.9MB. Free memory was 82.3MB in the beginning and 80.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 34.02ms. Allocated memory is still 104.9MB. Free memory was 80.8MB in the beginning and 79.9MB in the end (delta: 830.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 314.16ms. Allocated memory is still 104.9MB. Free memory was 79.9MB in the beginning and 70.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1420.02ms. Allocated memory is still 104.9MB. Free memory was 70.5MB in the beginning and 56.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Witness Printer took 60.60ms. Allocated memory is still 104.9MB. Free memory was 56.5MB in the beginning and 54.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-21 05:19:36,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2dd09cf9-3a16-430d-8077-7e513629333b/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)