./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_16_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --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 4749c43b325a887643b6b1ea62ebef561b43b4d83209bf439cb8948f7ebc6bd3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:05:33,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:05:33,525 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:05:33,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:05:33,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:05:33,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:05:33,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:05:33,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:05:33,581 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:05:33,582 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:05:33,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:05:33,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:05:33,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:05:33,585 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:05:33,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:05:33,587 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:05:33,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:05:33,588 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:05:33,588 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:05:33,589 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:05:33,589 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:05:33,593 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:05:33,593 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:05:33,593 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:05:33,594 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:05:33,594 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:05:33,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:33,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:05:33,595 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:05:33,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:05:33,595 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:05:33,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:05:33,596 INFO L153 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_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4749c43b325a887643b6b1ea62ebef561b43b4d83209bf439cb8948f7ebc6bd3 [2024-11-08 22:05:33,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:05:33,889 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:05:33,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:05:33,895 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:05:33,895 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:05:33,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_16_bad.i Unable to find full path for "g++" [2024-11-08 22:05:36,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:05:36,382 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:05:36,383 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_16_bad.i [2024-11-08 22:05:36,417 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/data/8a2ad3b1a/1ab2c97425ad4c1a9e75abb121bb12c9/FLAGd8db1143d [2024-11-08 22:05:36,438 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/data/8a2ad3b1a/1ab2c97425ad4c1a9e75abb121bb12c9 [2024-11-08 22:05:36,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:05:36,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:05:36,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:36,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:05:36,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:05:36,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:36" (1/1) ... [2024-11-08 22:05:36,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4cbffc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:36, skipping insertion in model container [2024-11-08 22:05:36,457 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:36" (1/1) ... [2024-11-08 22:05:36,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:05:37,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:37,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:05:37,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:37,988 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:05:37,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37 WrapperNode [2024-11-08 22:05:37,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:37,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:37,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:05:37,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:05:37,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,067 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2024-11-08 22:05:38,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:38,068 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:05:38,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:05:38,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:05:38,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,082 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,090 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,099 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:05:38,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:05:38,115 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:05:38,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:05:38,116 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:37" (1/1) ... [2024-11-08 22:05:38,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:38,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:05:38,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:05:38,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:05:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:05:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:05:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:05:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:05:38,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:05:38,427 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:05:38,430 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:05:38,559 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-08 22:05:38,559 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:05:38,617 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:05:38,618 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 22:05:38,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:38 BoogieIcfgContainer [2024-11-08 22:05:38,619 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:05:38,620 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:05:38,620 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:05:38,634 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:05:38,634 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:38" (1/1) ... [2024-11-08 22:05:38,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:05:38,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:05:38,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-08 22:05:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-08 22:05:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:05:38,717 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:05:38,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:05:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:05:39,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:05:39,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:05:39,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-08 22:05:39,222 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-08 22:05:39,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:05:39,223 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:05:39,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:05:39,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:05:39,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:05:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:05:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:05:39,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:05:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:05:39,390 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 22:05:39,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:05:39 ImpRootNode [2024-11-08 22:05:39,420 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:05:39,421 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:05:39,421 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:05:39,424 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:05:39,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:38" (3/4) ... [2024-11-08 22:05:39,428 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:05:39,429 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:05:39,430 INFO L158 Benchmark]: Toolchain (without parser) took 2987.17ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 94.2MB in the beginning and 148.1MB in the end (delta: -53.9MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-11-08 22:05:39,431 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 140.5MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:05:39,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1544.99ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 94.2MB in the beginning and 127.7MB in the end (delta: -33.5MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2024-11-08 22:05:39,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.40ms. Allocated memory is still 201.3MB. Free memory was 127.7MB in the beginning and 124.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:05:39,433 INFO L158 Benchmark]: Boogie Preprocessor took 42.44ms. Allocated memory is still 201.3MB. Free memory was 124.8MB in the beginning and 123.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:05:39,433 INFO L158 Benchmark]: RCFGBuilder took 507.36ms. Allocated memory is still 201.3MB. Free memory was 123.6MB in the beginning and 110.2MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 22:05:39,434 INFO L158 Benchmark]: CodeCheck took 800.38ms. Allocated memory is still 201.3MB. Free memory was 109.7MB in the beginning and 148.1MB in the end (delta: -38.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:05:39,434 INFO L158 Benchmark]: Witness Printer took 8.48ms. Allocated memory is still 201.3MB. Free memory is still 148.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:05:39,438 INFO L338 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 6 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE190_Integer_Overflow__int_max_preinc_16_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE 1 [L1554] data = 0x7fffffff VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 140.5MB. Free memory is still 78.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1544.99ms. Allocated memory was 140.5MB in the beginning and 201.3MB in the end (delta: 60.8MB). Free memory was 94.2MB in the beginning and 127.7MB in the end (delta: -33.5MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.40ms. Allocated memory is still 201.3MB. Free memory was 127.7MB in the beginning and 124.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.44ms. Allocated memory is still 201.3MB. Free memory was 124.8MB in the beginning and 123.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 507.36ms. Allocated memory is still 201.3MB. Free memory was 123.6MB in the beginning and 110.2MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 800.38ms. Allocated memory is still 201.3MB. Free memory was 109.7MB in the beginning and 148.1MB in the end (delta: -38.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.48ms. Allocated memory is still 201.3MB. Free memory is still 148.1MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:05:39,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk --witnessprinter.witness.filename witness --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 4749c43b325a887643b6b1ea62ebef561b43b4d83209bf439cb8948f7ebc6bd3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:05:42,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:05:42,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:05:42,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:05:42,521 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:05:42,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:05:42,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:05:42,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:05:42,524 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:05:42,524 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:05:42,525 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:05:42,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:05:42,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:05:42,527 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:05:42,528 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:05:42,528 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:05:42,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:05:42,533 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:05:42,534 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:05:42,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:05:42,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:05:42,535 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:05:42,535 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:05:42,535 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:05:42,535 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:05:42,536 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:05:42,536 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:05:42,536 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:05:42,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:42,537 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:05:42,537 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:05:42,537 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:05:42,537 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:05:42,538 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:05:42,538 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:05:42,538 INFO L153 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_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4749c43b325a887643b6b1ea62ebef561b43b4d83209bf439cb8948f7ebc6bd3 [2024-11-08 22:05:42,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:05:43,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:05:43,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:05:43,037 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:05:43,038 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:05:43,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_16_bad.i Unable to find full path for "g++" [2024-11-08 22:05:45,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:05:45,544 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:05:45,544 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_16_bad.i [2024-11-08 22:05:45,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/data/6ae6ecf22/0b32e8d642aa4a94bb349cf66e231c18/FLAG563f5607a [2024-11-08 22:05:45,594 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/data/6ae6ecf22/0b32e8d642aa4a94bb349cf66e231c18 [2024-11-08 22:05:45,597 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:05:45,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:05:45,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:45,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:05:45,609 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:05:45,610 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:45" (1/1) ... [2024-11-08 22:05:45,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cbb95e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:45, skipping insertion in model container [2024-11-08 22:05:45,614 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:45" (1/1) ... [2024-11-08 22:05:45,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:05:46,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:46,718 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:05:46,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:05:47,071 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:05:47,071 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47 WrapperNode [2024-11-08 22:05:47,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:47,073 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:47,075 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:05:47,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:05:47,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,154 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2024-11-08 22:05:47,154 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:05:47,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:05:47,158 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:05:47,158 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:05:47,168 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,168 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,176 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,185 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,192 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,198 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,200 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,204 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:05:47,209 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:05:47,209 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:05:47,209 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:05:47,210 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:47,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:05:47,253 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:05:47,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:05:47,286 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:05:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:05:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:05:47,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:05:47,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:05:47,495 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:05:47,498 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:05:47,648 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-08 22:05:47,648 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:05:47,716 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:05:47,717 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 22:05:47,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:47 BoogieIcfgContainer [2024-11-08 22:05:47,717 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:05:47,718 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:05:47,718 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:05:47,729 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:05:47,730 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:47" (1/1) ... [2024-11-08 22:05:47,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:05:47,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:05:47,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-08 22:05:47,829 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-08 22:05:47,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:05:47,833 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:05:47,835 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:05:47,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:05:47,839 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:05:47,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:05:48,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:05:48,003 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:05:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:05:48,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 22:05:48,044 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:05:48,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 22:05:48,072 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 22:05:48,074 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 22:05:48,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:05:48,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-08 22:05:48,104 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-08 22:05:48,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:05:48,104 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:05:48,105 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:05:48,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:05:48,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:05:48,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 22:05:48,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:05:48,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:05:48,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:05:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:05:48,328 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:05:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:05:48,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 22:05:48,371 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 22:05:48,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:05:48 ImpRootNode [2024-11-08 22:05:48,408 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:05:48,409 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:05:48,409 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:05:48,409 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:05:48,410 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:05:47" (3/4) ... [2024-11-08 22:05:48,413 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:05:48,414 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:05:48,415 INFO L158 Benchmark]: Toolchain (without parser) took 2814.94ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 50.3MB in the beginning and 50.6MB in the end (delta: -341.5kB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2024-11-08 22:05:48,416 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 77.6MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:05:48,417 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1468.91ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 50.3MB in the beginning and 65.1MB in the end (delta: -14.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-08 22:05:48,418 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.66ms. Allocated memory is still 96.5MB. Free memory was 65.1MB in the beginning and 62.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:05:48,419 INFO L158 Benchmark]: Boogie Preprocessor took 51.72ms. Allocated memory is still 96.5MB. Free memory was 62.0MB in the beginning and 59.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:05:48,420 INFO L158 Benchmark]: RCFGBuilder took 508.48ms. Allocated memory is still 96.5MB. Free memory was 59.9MB in the beginning and 44.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 22:05:48,421 INFO L158 Benchmark]: CodeCheck took 690.38ms. Allocated memory is still 96.5MB. Free memory was 44.1MB in the beginning and 51.4MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:05:48,421 INFO L158 Benchmark]: Witness Printer took 4.97ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 50.6MB in the end (delta: 746.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:05:48,426 INFO L338 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 46 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 1 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 - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1570. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE190_Integer_Overflow__int_max_preinc_16_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE 1 [L1554] data = 0x7fffffff VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 77.6MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1468.91ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 50.3MB in the beginning and 65.1MB in the end (delta: -14.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.66ms. Allocated memory is still 96.5MB. Free memory was 65.1MB in the beginning and 62.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.72ms. Allocated memory is still 96.5MB. Free memory was 62.0MB in the beginning and 59.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 508.48ms. Allocated memory is still 96.5MB. Free memory was 59.9MB in the beginning and 44.1MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 690.38ms. Allocated memory is still 96.5MB. Free memory was 44.1MB in the beginning and 51.4MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.97ms. Allocated memory is still 96.5MB. Free memory was 51.4MB in the beginning and 50.6MB in the end (delta: 746.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 22:05:48,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43277b81-0124-4299-9411-5ff318818bbe/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample