./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Ackermann-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4 --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 --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-15 02:32:49,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 02:32:49,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 02:32:49,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 02:32:49,426 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 02:32:49,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 02:32:49,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 02:32:49,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 02:32:49,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 02:32:49,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 02:32:49,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 02:32:49,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 02:32:49,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 02:32:49,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 02:32:49,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 02:32:49,437 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 02:32:49,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 02:32:49,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 02:32:49,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 02:32:49,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 02:32:49,443 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 02:32:49,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 02:32:49,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 02:32:49,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 02:32:49,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 02:32:49,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 02:32:49,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 02:32:49,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 02:32:49,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 02:32:49,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 02:32:49,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 02:32:49,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 02:32:49,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 02:32:49,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 02:32:49,455 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 02:32:49,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 02:32:49,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 02:32:49,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 02:32:49,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 02:32:49,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 02:32:49,457 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 02:32:49,458 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 02:32:49,476 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 02:32:49,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 02:32:49,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 02:32:49,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 02:32:49,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 02:32:49,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 02:32:49,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 02:32:49,487 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 02:32:49,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 02:32:49,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 02:32:49,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 02:32:49,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 02:32:49,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 02:32:49,488 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 02:32:49,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 02:32:49,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 02:32:49,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 02:32:49,489 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 02:32:49,489 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 02:32:49,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 02:32:49,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 02:32:49,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 02:32:49,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 02:32:49,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 02:32:49,490 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 02:32:49,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 02:32:49,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 02:32:49,491 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_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfd720405bcb220888936a72c0a56a1f9623ccca41ba023f90ec05bee86a71e5 [2022-12-15 02:32:49,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 02:32:49,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 02:32:49,699 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 02:32:49,701 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 02:32:49,701 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 02:32:49,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-crafted/Ackermann-1.c [2022-12-15 02:32:52,226 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 02:32:52,369 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 02:32:52,370 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/sv-benchmarks/c/termination-crafted/Ackermann-1.c [2022-12-15 02:32:52,373 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/data/b97f553cb/ff07944853f0475db6b38ed4581f636a/FLAG47f01dc05 [2022-12-15 02:32:52,793 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/data/b97f553cb/ff07944853f0475db6b38ed4581f636a [2022-12-15 02:32:52,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 02:32:52,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 02:32:52,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 02:32:52,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 02:32:52,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 02:32:52,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@215c42be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52, skipping insertion in model container [2022-12-15 02:32:52,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 02:32:52,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 02:32:52,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 02:32:52,933 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 02:32:52,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 02:32:52,955 INFO L208 MainTranslator]: Completed translation [2022-12-15 02:32:52,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52 WrapperNode [2022-12-15 02:32:52,955 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 02:32:52,956 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 02:32:52,956 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 02:32:52,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 02:32:52,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,965 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,976 INFO L138 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2022-12-15 02:32:52,977 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 02:32:52,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 02:32:52,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 02:32:52,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 02:32:52,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,984 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,987 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,987 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,988 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 02:32:52,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 02:32:52,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 02:32:52,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 02:32:52,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:32:52" (1/1) ... [2022-12-15 02:32:52,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 02:32:53,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 02:32:53,010 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 02:32:53,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 02:32:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure Ack [2022-12-15 02:32:53,045 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack [2022-12-15 02:32:53,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 02:32:53,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 02:32:53,092 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 02:32:53,093 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 02:32:53,182 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 02:32:53,190 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 02:32:53,190 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-15 02:32:53,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:32:53 BoogieIcfgContainer [2022-12-15 02:32:53,192 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 02:32:53,193 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 02:32:53,193 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 02:32:53,200 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 02:32:53,200 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:32:53" (1/1) ... [2022-12-15 02:32:53,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 02:32:53,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:32:53,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2022-12-15 02:32:53,247 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-12-15 02:32:53,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 02:32:53,248 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:32:53,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:32:53,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 02:32:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 02:32:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:32:53,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 36 states and 44 transitions. [2022-12-15 02:32:53,458 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-12-15 02:32:53,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-15 02:32:53,459 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:32:53,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:32:53,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 02:32:53,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 02:32:53,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 02:32:53,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 02:32:53,491 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 02:32:53,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 02:32:53,502 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-12-15 02:32:53,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 02:32:53 ImpRootNode [2022-12-15 02:32:53,518 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 02:32:53,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 02:32:53,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 02:32:53,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 02:32:53,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:32:53" (3/4) ... [2022-12-15 02:32:53,520 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-15 02:32:53,542 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 02:32:53,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 02:32:53,543 INFO L158 Benchmark]: Toolchain (without parser) took 746.58ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 85.9MB in the beginning and 114.4MB in the end (delta: -28.6MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-15 02:32:53,543 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 02:32:53,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.77ms. Allocated memory is still 119.5MB. Free memory was 85.6MB in the beginning and 76.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-15 02:32:53,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.36ms. Allocated memory is still 119.5MB. Free memory was 76.4MB in the beginning and 74.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 02:32:53,544 INFO L158 Benchmark]: Boogie Preprocessor took 11.43ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 74.0MB in the end (delta: 929.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 02:32:53,544 INFO L158 Benchmark]: RCFGBuilder took 203.41ms. Allocated memory is still 119.5MB. Free memory was 74.0MB in the beginning and 63.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-15 02:32:53,545 INFO L158 Benchmark]: CodeCheck took 324.83ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 63.6MB in the beginning and 116.5MB in the end (delta: -53.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 02:32:53,545 INFO L158 Benchmark]: Witness Printer took 23.95ms. Allocated memory is still 151.0MB. Free memory was 116.5MB in the beginning and 114.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 02:32:53,547 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: 0.3s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 10 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 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, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 0.20ms. Allocated memory is still 119.5MB. Free memory is still 90.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.77ms. Allocated memory is still 119.5MB. Free memory was 85.6MB in the beginning and 76.4MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.36ms. Allocated memory is still 119.5MB. Free memory was 76.4MB in the beginning and 74.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.43ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 74.0MB in the end (delta: 929.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 203.41ms. Allocated memory is still 119.5MB. Free memory was 74.0MB in the beginning and 63.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 324.83ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 63.6MB in the beginning and 116.5MB in the end (delta: -53.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 23.95ms. Allocated memory is still 151.0MB. Free memory was 116.5MB in the beginning and 114.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-15 02:32:53,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1132f912-89e7-49b2-add9-c33adde946a3/bin/ukojak-rkRKPMF4O4/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)