./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.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_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/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_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/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_91794afc-b8f7-472e-aa1d-f837ef804d8e/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 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:12:58,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:12:58,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:12:58,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:12:58,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:12:58,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:12:58,889 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:12:58,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:12:58,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:12:58,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:12:58,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:12:58,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:12:58,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:12:58,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:12:58,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:12:58,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:12:58,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:12:58,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:12:58,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:12:58,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:12:58,919 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:12:58,921 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:12:58,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:12:58,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:12:58,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:12:58,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:12:58,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:12:58,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:12:58,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:12:58,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:12:58,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:12:58,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:12:58,934 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:12:58,935 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:12:58,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:12:58,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:12:58,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:12:58,939 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:12:58,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:12:58,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:12:58,941 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:12:58,943 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-23 01:12:58,987 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:12:58,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:12:58,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:12:58,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:12:58,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:12:58,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:12:58,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:12:58,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 01:12:58,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:12:58,992 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:12:58,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:12:58,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:12:58,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:12:58,993 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-23 01:12:58,994 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:12:58,994 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:12:58,994 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:12:58,994 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:12:58,994 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:12:58,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:12:58,995 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:12:58,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:12:58,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:12:58,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:12:58,996 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:12:58,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:12:58,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:12:58,996 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_91794afc-b8f7-472e-aa1d-f837ef804d8e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 702a5cb4e98140bb9dbcfd0fb89e24e07deb7e8ce40ea61b05e70376d58bbad7 [2021-11-23 01:12:59,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:12:59,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:12:59,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:12:59,341 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:12:59,342 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:12:59,344 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2021-11-23 01:12:59,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/data/c0b26a0cc/c695971ed18645cb8a8b287d4f956298/FLAGc30de096b [2021-11-23 01:12:59,890 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:12:59,891 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex4.c [2021-11-23 01:12:59,896 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/data/c0b26a0cc/c695971ed18645cb8a8b287d4f956298/FLAGc30de096b [2021-11-23 01:13:00,269 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/data/c0b26a0cc/c695971ed18645cb8a8b287d4f956298 [2021-11-23 01:13:00,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:13:00,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:13:00,275 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:13:00,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:13:00,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:13:00,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9ea65c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00, skipping insertion in model container [2021-11-23 01:13:00,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:13:00,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:13:00,463 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:13:00,468 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:13:00,491 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:13:00,504 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:13:00,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00 WrapperNode [2021-11-23 01:13:00,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:13:00,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:13:00,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:13:00,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:13:00,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,542 INFO L137 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2021-11-23 01:13:00,543 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:13:00,546 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:13:00,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:13:00,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:13:00,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,560 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,576 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:13:00,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:13:00,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:13:00,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:13:00,580 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,595 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:13:00,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:13:00,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:13:00,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:13:00,682 INFO L130 BoogieDeclarations]: Found specification of procedure p [2021-11-23 01:13:00,682 INFO L138 BoogieDeclarations]: Found implementation of procedure p [2021-11-23 01:13:00,683 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:13:00,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:13:00,741 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:13:00,743 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:13:00,907 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:13:00,921 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:13:00,922 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:13:00,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:00 BoogieIcfgContainer [2021-11-23 01:13:00,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:13:00,925 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:13:00,926 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:13:00,938 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:13:00,938 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:00" (1/1) ... [2021-11-23 01:13:00,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:13:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:01,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-11-23 01:13:01,061 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-11-23 01:13:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:13:01,063 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:01,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:01,283 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 01:13:01,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:01,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 32 transitions. [2021-11-23 01:13:01,370 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2021-11-23 01:13:01,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:13:01,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:01,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:01,416 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 01:13:01,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:01,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 31 transitions. [2021-11-23 01:13:01,502 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2021-11-23 01:13:01,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:13:01,507 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:01,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:01,590 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 01:13:01,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:01,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 38 transitions. [2021-11-23 01:13:01,957 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2021-11-23 01:13:01,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:13:01,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:01,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:01,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:02,039 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 01:13:02,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:02,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 37 transitions. [2021-11-23 01:13:02,147 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2021-11-23 01:13:02,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:13:02,148 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:02,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:02,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:02,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:13:02,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:02,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 31 states and 41 transitions. [2021-11-23 01:13:02,424 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2021-11-23 01:13:02,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:13:02,425 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:02,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:02,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:02,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:13:02,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:02,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 44 transitions. [2021-11-23 01:13:02,703 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2021-11-23 01:13:02,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 01:13:02,705 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:02,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:13:03,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:03,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 39 states and 56 transitions. [2021-11-23 01:13:03,788 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2021-11-23 01:13:03,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:13:03,789 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:03,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:03,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:13:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:03,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 60 transitions. [2021-11-23 01:13:03,920 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 60 transitions. [2021-11-23 01:13:03,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:13:03,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:03,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:03,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:03,958 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:13:04,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:04,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 44 states and 63 transitions. [2021-11-23 01:13:04,144 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2021-11-23 01:13:04,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:13:04,145 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:13:04,146 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:13:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:13:04,290 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:13:04,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:13:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 19 states and 23 transitions. [2021-11-23 01:13:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-23 01:13:04,735 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:13:04,735 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2021-11-23 01:13:04,746 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-11-23 01:13:04,799 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:13:04,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:13:04 ImpRootNode [2021-11-23 01:13:04,804 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:13:04,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:13:04,805 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:13:04,805 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:13:04,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:13:00" (3/4) ... [2021-11-23 01:13:04,809 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:13:04,815 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure p [2021-11-23 01:13:04,820 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-23 01:13:04,821 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-23 01:13:04,821 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 01:13:04,872 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:13:04,872 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:13:04,873 INFO L158 Benchmark]: Toolchain (without parser) took 4600.10ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.2MB in the beginning and 41.7MB in the end (delta: 14.5MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2021-11-23 01:13:04,874 INFO L158 Benchmark]: CDTParser took 0.59ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:13:04,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.20ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.2MB in the beginning and 87.6MB in the end (delta: -31.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:13:04,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.24ms. Allocated memory is still 111.1MB. Free memory was 87.6MB in the beginning and 85.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:13:04,880 INFO L158 Benchmark]: Boogie Preprocessor took 30.08ms. Allocated memory is still 111.1MB. Free memory was 85.9MB in the beginning and 85.0MB in the end (delta: 938.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:13:04,880 INFO L158 Benchmark]: RCFGBuilder took 346.76ms. Allocated memory is still 111.1MB. Free memory was 85.0MB in the beginning and 76.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:13:04,881 INFO L158 Benchmark]: CodeCheck took 3878.47ms. Allocated memory is still 111.1MB. Free memory was 75.4MB in the beginning and 44.9MB in the end (delta: 30.5MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2021-11-23 01:13:04,882 INFO L158 Benchmark]: Witness Printer took 67.98ms. Allocated memory is still 111.1MB. Free memory was 44.9MB in the beginning and 41.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 01:13:04,884 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 2 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.8s, OverallIterations: 11, 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, 308 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 270 mSDsluCounter, 106 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 226 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1090 IncrementalHoareTripleChecker+Invalid, 1316 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 226 mSolverCounterUnsat, 106 mSDtfsCounter, 1090 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 979 GetRequests, 830 SyntacticMatches, 53 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3136 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 10/28 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 63.3MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.20ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.2MB in the beginning and 87.6MB in the end (delta: -31.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.24ms. Allocated memory is still 111.1MB. Free memory was 87.6MB in the beginning and 85.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.08ms. Allocated memory is still 111.1MB. Free memory was 85.9MB in the beginning and 85.0MB in the end (delta: 938.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 346.76ms. Allocated memory is still 111.1MB. Free memory was 85.0MB in the beginning and 76.0MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 3878.47ms. Allocated memory is still 111.1MB. Free memory was 75.4MB in the beginning and 44.9MB in the end (delta: 30.5MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. * Witness Printer took 67.98ms. Allocated memory is still 111.1MB. Free memory was 44.9MB in the beginning and 41.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:13:04,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91794afc-b8f7-472e-aa1d-f837ef804d8e/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