./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL --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 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 07:55:21,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 07:55:21,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 07:55:21,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 07:55:21,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 07:55:21,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 07:55:21,807 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 07:55:21,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 07:55:21,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 07:55:21,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 07:55:21,816 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 07:55:21,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 07:55:21,818 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 07:55:21,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 07:55:21,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 07:55:21,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 07:55:21,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 07:55:21,827 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 07:55:21,830 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 07:55:21,833 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 07:55:21,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 07:55:21,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 07:55:21,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 07:55:21,840 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 07:55:21,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 07:55:21,854 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 07:55:21,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 07:55:21,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 07:55:21,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 07:55:21,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 07:55:21,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 07:55:21,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 07:55:21,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 07:55:21,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 07:55:21,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 07:55:21,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 07:55:21,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 07:55:21,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 07:55:21,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 07:55:21,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 07:55:21,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 07:55:21,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-25 07:55:21,926 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 07:55:21,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 07:55:21,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 07:55:21,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 07:55:21,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 07:55:21,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 07:55:21,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 07:55:21,929 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 07:55:21,929 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 07:55:21,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 07:55:21,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 07:55:21,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 07:55:21,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 07:55:21,931 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 07:55:21,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 07:55:21,932 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 07:55:21,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 07:55:21,932 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 07:55:21,932 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 07:55:21,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 07:55:21,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:55:21,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 07:55:21,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 07:55:21,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 07:55:21,934 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 07:55:21,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 07:55:21,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 07:55:21,934 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_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5c626d5135dc189cbc332c41f07b76804a58f47ee910790099695b0d83f1587 [2021-11-25 07:55:22,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 07:55:22,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 07:55:22,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 07:55:22,263 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 07:55:22,264 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 07:55:22,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2021-11-25 07:55:22,356 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/data/281d526da/cc6f758a4b6a46478438f36a6946d7f1/FLAG3128cc783 [2021-11-25 07:55:22,841 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 07:55:22,842 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2021-11-25 07:55:22,846 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/data/281d526da/cc6f758a4b6a46478438f36a6946d7f1/FLAG3128cc783 [2021-11-25 07:55:23,217 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/data/281d526da/cc6f758a4b6a46478438f36a6946d7f1 [2021-11-25 07:55:23,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 07:55:23,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 07:55:23,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 07:55:23,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 07:55:23,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 07:55:23,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,230 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c4bd458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23, skipping insertion in model container [2021-11-25 07:55:23,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 07:55:23,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 07:55:23,427 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:55:23,432 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 07:55:23,469 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:55:23,483 INFO L208 MainTranslator]: Completed translation [2021-11-25 07:55:23,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23 WrapperNode [2021-11-25 07:55:23,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 07:55:23,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 07:55:23,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 07:55:23,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 07:55:23,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,517 INFO L137 Inliner]: procedures = 6, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 8 [2021-11-25 07:55:23,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 07:55:23,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 07:55:23,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 07:55:23,521 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 07:55:23,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,531 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 07:55:23,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 07:55:23,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 07:55:23,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 07:55:23,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,558 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:55:23,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 07:55:23,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 07:55:23,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 07:55:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2021-11-25 07:55:23,638 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2021-11-25 07:55:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2021-11-25 07:55:23,639 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2021-11-25 07:55:23,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 07:55:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 07:55:23,695 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 07:55:23,697 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 07:55:23,858 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 07:55:23,871 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 07:55:23,872 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 07:55:23,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:55:23 BoogieIcfgContainer [2021-11-25 07:55:23,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 07:55:23,880 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 07:55:23,880 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 07:55:23,889 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 07:55:23,890 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:55:23" (1/1) ... [2021-11-25 07:55:23,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 07:55:23,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:55:23,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2021-11-25 07:55:23,958 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2021-11-25 07:55:23,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 07:55:23,964 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:55:23,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:55:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:55:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:55:24,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:55:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 45 states and 51 transitions. [2021-11-25 07:55:24,291 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2021-11-25 07:55:24,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 07:55:24,292 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:55:24,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:55:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:55:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:55:24,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:55:24,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 44 states and 50 transitions. [2021-11-25 07:55:24,425 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2021-11-25 07:55:24,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 07:55:24,426 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:55:24,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:55:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:55:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:55:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:55:24,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 40 states and 45 transitions. [2021-11-25 07:55:24,556 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2021-11-25 07:55:24,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 07:55:24,557 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:55:24,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:55:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:55:24,653 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 07:55:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:55:24,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 56 transitions. [2021-11-25 07:55:24,817 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2021-11-25 07:55:24,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 07:55:24,819 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:55:24,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:55:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:55:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 07:55:24,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:55:24,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 55 transitions. [2021-11-25 07:55:24,954 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2021-11-25 07:55:24,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-25 07:55:24,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:55:24,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:55:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:55:25,052 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 07:55:25,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:55:25,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 50 states and 64 transitions. [2021-11-25 07:55:25,183 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2021-11-25 07:55:25,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-25 07:55:25,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:55:25,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:55:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:55:25,373 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-25 07:55:25,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:55:25,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 20 states and 21 transitions. [2021-11-25 07:55:25,781 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-11-25 07:55:25,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 07:55:25,782 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-25 07:55:25,794 INFO L754 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2021-11-25 07:55:25,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 07:55:25 ImpRootNode [2021-11-25 07:55:25,850 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 07:55:25,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 07:55:25,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 07:55:25,851 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 07:55:25,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:55:23" (3/4) ... [2021-11-25 07:55:25,854 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 07:55:25,860 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec1 [2021-11-25 07:55:25,860 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec2 [2021-11-25 07:55:25,868 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-25 07:55:25,868 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-25 07:55:25,868 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 07:55:25,936 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 07:55:25,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 07:55:25,937 INFO L158 Benchmark]: Toolchain (without parser) took 2716.67ms. Allocated memory is still 111.1MB. Free memory was 74.2MB in the beginning and 87.0MB in the end (delta: -12.8MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2021-11-25 07:55:25,938 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 111.1MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:55:25,939 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.35ms. Allocated memory is still 111.1MB. Free memory was 74.0MB in the beginning and 87.7MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 07:55:25,939 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.95ms. Allocated memory is still 111.1MB. Free memory was 87.7MB in the beginning and 86.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:55:25,940 INFO L158 Benchmark]: Boogie Preprocessor took 28.31ms. Allocated memory is still 111.1MB. Free memory was 86.4MB in the beginning and 85.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:55:25,941 INFO L158 Benchmark]: RCFGBuilder took 329.15ms. Allocated memory is still 111.1MB. Free memory was 85.3MB in the beginning and 75.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 07:55:25,941 INFO L158 Benchmark]: CodeCheck took 1970.40ms. Allocated memory is still 111.1MB. Free memory was 75.0MB in the beginning and 44.6MB in the end (delta: 30.4MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2021-11-25 07:55:25,947 INFO L158 Benchmark]: Witness Printer took 86.11ms. Allocated memory is still 111.1MB. Free memory was 44.6MB in the beginning and 87.0MB in the end (delta: -42.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2021-11-25 07:55:25,949 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: 1.9s, 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, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 158 SdHoareTripleChecker+Invalid, 0.6s 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, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s 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 0.36ms. Allocated memory is still 111.1MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.35ms. Allocated memory is still 111.1MB. Free memory was 74.0MB in the beginning and 87.7MB in the end (delta: -13.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.95ms. Allocated memory is still 111.1MB. Free memory was 87.7MB in the beginning and 86.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.31ms. Allocated memory is still 111.1MB. Free memory was 86.4MB in the beginning and 85.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 329.15ms. Allocated memory is still 111.1MB. Free memory was 85.3MB in the beginning and 75.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1970.40ms. Allocated memory is still 111.1MB. Free memory was 75.0MB in the beginning and 44.6MB in the end (delta: 30.4MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. * Witness Printer took 86.11ms. Allocated memory is still 111.1MB. Free memory was 44.6MB in the beginning and 87.0MB in the end (delta: -42.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-25 07:55:26,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bd1dc6e-1a36-4ff4-8aa5-f189e9b20dcc/bin/ukojak-d1pc8ZmBRL/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