./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Ackermann-1.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_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/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_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Ackermann-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/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_2ce7077f-aca9-45c4-97ec-9ee596876a39/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 bfd720405bcb220888936a72c0a56a1f9623ccca41ba023f90ec05bee86a71e5 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 07:05:16,992 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 07:05:16,994 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 07:05:17,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 07:05:17,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 07:05:17,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 07:05:17,053 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 07:05:17,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 07:05:17,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 07:05:17,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 07:05:17,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 07:05:17,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 07:05:17,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 07:05:17,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 07:05:17,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 07:05:17,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 07:05:17,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 07:05:17,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 07:05:17,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 07:05:17,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 07:05:17,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 07:05:17,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 07:05:17,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 07:05:17,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 07:05:17,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 07:05:17,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 07:05:17,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 07:05:17,110 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 07:05:17,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 07:05:17,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 07:05:17,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 07:05:17,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 07:05:17,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 07:05:17,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 07:05:17,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 07:05:17,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 07:05:17,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 07:05:17,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 07:05:17,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 07:05:17,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 07:05:17,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 07:05:17,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-25 07:05:17,161 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 07:05:17,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 07:05:17,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 07:05:17,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 07:05:17,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 07:05:17,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 07:05:17,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 07:05:17,165 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 07:05:17,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 07:05:17,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 07:05:17,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 07:05:17,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 07:05:17,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 07:05:17,173 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 07:05:17,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 07:05:17,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 07:05:17,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 07:05:17,174 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 07:05:17,174 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 07:05:17,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 07:05:17,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:05:17,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 07:05:17,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 07:05:17,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 07:05:17,175 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 07:05:17,176 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 07:05:17,176 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 07:05:17,176 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_2ce7077f-aca9-45c4-97ec-9ee596876a39/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfd720405bcb220888936a72c0a56a1f9623ccca41ba023f90ec05bee86a71e5 [2021-11-25 07:05:17,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 07:05:17,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 07:05:17,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 07:05:17,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 07:05:17,470 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 07:05:17,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/termination-crafted/Ackermann-1.c [2021-11-25 07:05:17,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/data/5812f4458/2bf93e02445f4d12bd31831955ef54ef/FLAGdf1221b5b [2021-11-25 07:05:17,976 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 07:05:17,977 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/sv-benchmarks/c/termination-crafted/Ackermann-1.c [2021-11-25 07:05:17,982 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/data/5812f4458/2bf93e02445f4d12bd31831955ef54ef/FLAGdf1221b5b [2021-11-25 07:05:18,372 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/data/5812f4458/2bf93e02445f4d12bd31831955ef54ef [2021-11-25 07:05:18,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 07:05:18,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 07:05:18,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 07:05:18,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 07:05:18,397 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 07:05:18,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,399 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749d069d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18, skipping insertion in model container [2021-11-25 07:05:18,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,407 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 07:05:18,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 07:05:18,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:05:18,644 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 07:05:18,674 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:05:18,692 INFO L208 MainTranslator]: Completed translation [2021-11-25 07:05:18,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18 WrapperNode [2021-11-25 07:05:18,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 07:05:18,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 07:05:18,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 07:05:18,696 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 07:05:18,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,710 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,728 INFO L137 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2021-11-25 07:05:18,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 07:05:18,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 07:05:18,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 07:05:18,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 07:05:18,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 07:05:18,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 07:05:18,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 07:05:18,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 07:05:18,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:05:18" (1/1) ... [2021-11-25 07:05:18,771 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:05:18,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 07:05:18,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 07:05:18,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 07:05:18,852 INFO L130 BoogieDeclarations]: Found specification of procedure Ack [2021-11-25 07:05:18,852 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack [2021-11-25 07:05:18,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 07:05:18,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 07:05:18,910 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 07:05:18,912 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 07:05:19,110 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 07:05:19,122 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 07:05:19,135 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-25 07:05:19,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:05:19 BoogieIcfgContainer [2021-11-25 07:05:19,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 07:05:19,139 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 07:05:19,139 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 07:05:19,149 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 07:05:19,171 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:05:19" (1/1) ... [2021-11-25 07:05:19,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 07:05:19,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:05:19,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2021-11-25 07:05:19,257 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2021-11-25 07:05:19,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-25 07:05:19,259 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:05:19,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:05:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:05:19,331 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:05:19,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:05:19,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:05:19,399 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:05:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:05:19,415 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-25 07:05:19,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 07:05:19 ImpRootNode [2021-11-25 07:05:19,439 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 07:05:19,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 07:05:19,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 07:05:19,441 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 07:05:19,442 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:05:19" (3/4) ... [2021-11-25 07:05:19,444 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 07:05:19,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 07:05:19,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 07:05:19,487 INFO L158 Benchmark]: Toolchain (without parser) took 1110.83ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 95.1MB in the end (delta: 7.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2021-11-25 07:05:19,495 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory was 118.3MB in the beginning and 118.2MB in the end (delta: 91.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:05:19,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.06ms. Allocated memory is still 144.7MB. Free memory was 102.0MB in the beginning and 119.7MB in the end (delta: -17.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 07:05:19,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.42ms. Allocated memory is still 144.7MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:05:19,498 INFO L158 Benchmark]: Boogie Preprocessor took 29.41ms. Allocated memory is still 144.7MB. Free memory was 118.6MB in the beginning and 117.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:05:19,498 INFO L158 Benchmark]: RCFGBuilder took 376.50ms. Allocated memory is still 144.7MB. Free memory was 117.6MB in the beginning and 107.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 07:05:19,500 INFO L158 Benchmark]: CodeCheck took 300.16ms. Allocated memory is still 144.7MB. Free memory was 107.7MB in the beginning and 96.6MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 07:05:19,503 INFO L158 Benchmark]: Witness Printer took 45.41ms. Allocated memory is still 144.7MB. Free memory was 96.6MB in the beginning and 95.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:05:19,508 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, 33 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 10]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x = __VERIFIER_nondet_int(); [L17] int y = __VERIFIER_nondet_int(); [L18] COND FALSE !(x < 0 || y < 0) VAL [x=0, y=2147483647] [L21] CALL Ack(x, y) VAL [\old(m)=0, \old(n)=2147483647] [L10] COND TRUE m == 0 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L10] n+1 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory was 118.3MB in the beginning and 118.2MB in the end (delta: 91.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.06ms. Allocated memory is still 144.7MB. Free memory was 102.0MB in the beginning and 119.7MB in the end (delta: -17.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.42ms. Allocated memory is still 144.7MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.41ms. Allocated memory is still 144.7MB. Free memory was 118.6MB in the beginning and 117.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 376.50ms. Allocated memory is still 144.7MB. Free memory was 117.6MB in the beginning and 107.7MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 300.16ms. Allocated memory is still 144.7MB. Free memory was 107.7MB in the beginning and 96.6MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 45.41ms. Allocated memory is still 144.7MB. Free memory was 96.6MB in the beginning and 95.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-25 07:05:19,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ce7077f-aca9-45c4-97ec-9ee596876a39/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)