./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ --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 f5c626d5135dc189cbc332c41f07b76804a58f47ee910790099695b0d83f1587 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:18:13,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:18:13,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:18:13,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:18:13,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:18:13,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:18:13,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:18:13,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:18:13,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:18:13,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:18:13,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:18:13,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:18:13,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:18:13,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:18:13,992 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:18:13,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:18:13,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:18:14,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:18:14,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:18:14,012 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:18:14,015 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:18:14,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:18:14,019 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:18:14,020 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:18:14,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:18:14,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:18:14,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:18:14,027 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:18:14,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:18:14,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:18:14,030 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:18:14,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:18:14,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:18:14,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:18:14,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:18:14,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:18:14,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:18:14,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:18:14,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:18:14,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:18:14,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:18:14,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-23 01:18:14,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:18:14,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:18:14,074 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:18:14,074 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:18:14,075 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:18:14,076 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:18:14,076 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:18:14,076 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 01:18:14,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:18:14,077 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:18:14,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:18:14,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:18:14,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:18:14,078 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 01:18:14,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:18:14,079 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:18:14,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:18:14,079 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:18:14,080 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:18:14,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:18:14,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:18:14,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:18:14,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:18:14,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:18:14,082 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:18:14,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:18:14,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:18:14,083 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_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5c626d5135dc189cbc332c41f07b76804a58f47ee910790099695b0d83f1587 [2021-11-23 01:18:14,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:18:14,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:18:14,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:18:14,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:18:14,479 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:18:14,480 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2021-11-23 01:18:14,594 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/data/c75d635b7/b56d025c0560411dab4de876523c655b/FLAG9d7c971aa [2021-11-23 01:18:15,142 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:18:15,143 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2021-11-23 01:18:15,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/data/c75d635b7/b56d025c0560411dab4de876523c655b/FLAG9d7c971aa [2021-11-23 01:18:15,495 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/data/c75d635b7/b56d025c0560411dab4de876523c655b [2021-11-23 01:18:15,499 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:18:15,501 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:18:15,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:18:15,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:18:15,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:18:15,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,518 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51719207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15, skipping insertion in model container [2021-11-23 01:18:15,518 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:18:15,550 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:18:15,775 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:18:15,779 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:18:15,795 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:18:15,811 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:18:15,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15 WrapperNode [2021-11-23 01:18:15,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:18:15,813 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:18:15,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:18:15,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:18:15,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,848 INFO L137 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8 [2021-11-23 01:18:15,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:18:15,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:18:15,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:18:15,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:18:15,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:18:15,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:18:15,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:18:15,868 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:18:15,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:18:15" (1/1) ... [2021-11-23 01:18:15,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:18:15,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:18:15,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:18:15,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:18:15,987 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2021-11-23 01:18:15,987 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2021-11-23 01:18:15,989 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2021-11-23 01:18:15,989 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2021-11-23 01:18:15,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:18:15,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:18:16,063 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:18:16,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:18:16,299 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:18:16,327 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:18:16,327 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:18:16,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:18:16 BoogieIcfgContainer [2021-11-23 01:18:16,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:18:16,332 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:18:16,332 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:18:16,346 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:18:16,346 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:18:16" (1/1) ... [2021-11-23 01:18:16,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:18:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:16,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2021-11-23 01:18:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2021-11-23 01:18:16,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:18:16,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:16,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:18:16,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:16,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 45 states and 51 transitions. [2021-11-23 01:18:16,882 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2021-11-23 01:18:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:18:16,884 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:16,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:16,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:16,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:18:17,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 44 states and 50 transitions. [2021-11-23 01:18:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2021-11-23 01:18:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:18:17,012 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:17,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:17,102 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:18:17,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:17,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 40 states and 45 transitions. [2021-11-23 01:18:17,178 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2021-11-23 01:18:17,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:18:17,179 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:17,179 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:17,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:18:17,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:17,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 56 transitions. [2021-11-23 01:18:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2021-11-23 01:18:17,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 01:18:17,519 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:17,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:17,620 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:18:17,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:17,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 55 transitions. [2021-11-23 01:18:17,680 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2021-11-23 01:18:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:18:17,682 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:17,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:17,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:18:18,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:18,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 50 states and 64 transitions. [2021-11-23 01:18:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2021-11-23 01:18:18,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:18:18,010 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:18:18,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:18:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:18:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:18:18,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:18:18,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 20 states and 21 transitions. [2021-11-23 01:18:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-11-23 01:18:18,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:18:18,796 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-23 01:18:18,818 INFO L754 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2021-11-23 01:18:18,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:18:18 ImpRootNode [2021-11-23 01:18:18,890 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:18:18,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:18:18,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:18:18,891 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:18:18,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:18:16" (3/4) ... [2021-11-23 01:18:18,895 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:18:18,903 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec1 [2021-11-23 01:18:18,904 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec2 [2021-11-23 01:18:18,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-23 01:18:18,917 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:18:18,918 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 01:18:18,976 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:18:18,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:18:18,978 INFO L158 Benchmark]: Toolchain (without parser) took 3476.28ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 48.6MB in the beginning and 80.0MB in the end (delta: -31.4MB). Peak memory consumption was 2.2kB. Max. memory is 16.1GB. [2021-11-23 01:18:18,978 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:18:18,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.72ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 48.3MB in the beginning and 95.0MB in the end (delta: -46.7MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2021-11-23 01:18:18,980 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.71ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 93.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:18:18,981 INFO L158 Benchmark]: Boogie Preprocessor took 16.84ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 92.9MB in the end (delta: 821.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:18:18,982 INFO L158 Benchmark]: RCFGBuilder took 463.52ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:18:18,983 INFO L158 Benchmark]: CodeCheck took 2557.86ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 82.8MB in the end (delta: -314.7kB). Peak memory consumption was 436.0kB. Max. memory is 16.1GB. [2021-11-23 01:18:18,984 INFO L158 Benchmark]: Witness Printer took 86.34ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 80.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:18:18,988 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 3 procedures, 42 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 2.4s, OverallIterations: 8, 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, 176 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 158 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 140 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 414 IncrementalHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 140 mSolverCounterUnsat, 142 mSDtfsCounter, 414 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 796 GetRequests, 733 SyntacticMatches, 15 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 113 NumberOfCodeBlocks, 113 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 200 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 31/31 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 20]: 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: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.72ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 48.3MB in the beginning and 95.0MB in the end (delta: -46.7MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.71ms. Allocated memory is still 117.4MB. Free memory was 95.0MB in the beginning and 93.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.84ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 92.9MB in the end (delta: 821.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.52ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 82.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2557.86ms. Allocated memory is still 117.4MB. Free memory was 82.5MB in the beginning and 82.8MB in the end (delta: -314.7kB). Peak memory consumption was 436.0kB. Max. memory is 16.1GB. * Witness Printer took 86.34ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 80.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:18:19,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e9941a0-5c68-4b4d-91cf-66351da348eb/bin/ukojak-LBtLqBUTdQ/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 Result: TRUE