./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_13_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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 0ad66e5533d7df8ae3d2e0a46b470ad16e60eb990fe66e1322f16c8f1c7069cc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:05:56,382 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:05:56,486 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 22:05:56,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 22:05:56,495 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 22:05:56,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:05:56,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:05:56,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:05:56,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:05:56,532 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:05:56,532 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:05:56,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:05:56,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 22:05:56,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:05:56,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:05:56,536 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:05:56,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:05:56,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:05:56,543 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:05:56,543 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:05:56,543 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:05:56,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:05:56,544 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:05:56,545 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:05:56,545 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:05:56,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:05:56,546 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:05:56,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:05:56,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:05:56,547 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:05:56,547 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 22:05:56,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 22:05:56,548 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_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad66e5533d7df8ae3d2e0a46b470ad16e60eb990fe66e1322f16c8f1c7069cc [2024-11-08 22:05:56,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:05:56,876 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:05:56,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:05:56,880 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:05:56,881 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:05:56,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_13_bad.i Unable to find full path for "g++" [2024-11-08 22:05:58,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:05:59,342 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:05:59,344 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_13_bad.i [2024-11-08 22:05:59,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/data/bda641bb3/9d010c7a31eb4b848fbcb8615a2d5268/FLAG1111f1182 [2024-11-08 22:05:59,390 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/data/bda641bb3/9d010c7a31eb4b848fbcb8615a2d5268 [2024-11-08 22:05:59,392 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:05:59,394 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:05:59,396 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:05:59,396 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:05:59,402 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:05:59,403 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:59" (1/1) ... [2024-11-08 22:05:59,404 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5455b28f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:05:59, skipping insertion in model container [2024-11-08 22:05:59,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:05:59" (1/1) ... [2024-11-08 22:05:59,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:06:00,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:06:00,647 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:06:00,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:06:00,869 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:06:00,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00 WrapperNode [2024-11-08 22:06:00,869 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:06:00,871 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:06:00,871 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:06:00,871 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:06:00,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,928 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2024-11-08 22:06:00,928 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:06:00,929 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:06:00,930 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:06:00,930 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:06:00,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,953 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,955 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:06:00,956 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:06:00,956 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:06:00,957 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:06:00,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:00" (1/1) ... [2024-11-08 22:06:00,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:06:00,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:06:01,000 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:06:01,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:06:01,043 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:06:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:06:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:06:01,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:06:01,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:06:01,188 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:06:01,190 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:06:01,296 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 22:06:01,296 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:06:01,357 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:06:01,357 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:06:01,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:06:01 BoogieIcfgContainer [2024-11-08 22:06:01,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:06:01,359 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:06:01,359 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:06:01,371 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:06:01,371 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:06:01" (1/1) ... [2024-11-08 22:06:01,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:06:01,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:01,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-08 22:06:01,436 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-08 22:06:01,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:06:01,440 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:01,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:06:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:01,890 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 22:06:02,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:02,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 13 states and 14 transitions. [2024-11-08 22:06:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-08 22:06:02,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:06:02,006 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:02,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 22:06:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:06:02,041 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:06:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:06:02,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:06:02,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:06:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:06:02,169 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 22:06:02,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:06:02 ImpRootNode [2024-11-08 22:06:02,203 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:06:02,204 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:06:02,206 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:06:02,207 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:06:02,208 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:06:01" (3/4) ... [2024-11-08 22:06:02,212 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:06:02,213 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:06:02,214 INFO L158 Benchmark]: Toolchain (without parser) took 2819.96ms. Allocated memory is still 188.7MB. Free memory was 147.5MB in the beginning and 87.6MB in the end (delta: 59.8MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2024-11-08 22:06:02,215 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 136.3MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:06:02,215 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1474.23ms. Allocated memory is still 188.7MB. Free memory was 147.5MB in the beginning and 133.7MB in the end (delta: 13.7MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2024-11-08 22:06:02,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.98ms. Allocated memory is still 188.7MB. Free memory was 133.7MB in the beginning and 131.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 22:06:02,217 INFO L158 Benchmark]: Boogie Preprocessor took 26.29ms. Allocated memory is still 188.7MB. Free memory was 131.0MB in the beginning and 129.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:06:02,218 INFO L158 Benchmark]: RCFGBuilder took 401.79ms. Allocated memory is still 188.7MB. Free memory was 129.5MB in the beginning and 115.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 22:06:02,219 INFO L158 Benchmark]: CodeCheck took 844.62ms. Allocated memory is still 188.7MB. Free memory was 115.7MB in the beginning and 88.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-08 22:06:02,219 INFO L158 Benchmark]: Witness Printer took 8.95ms. Allocated memory is still 188.7MB. Free memory was 88.4MB in the beginning and 87.6MB in the end (delta: 769.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:06:02,227 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 8 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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: 1559]: 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 1568. 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); [L1568] 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) [L1568] 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] [L1569] CALL CWE190_Integer_Overflow__int_max_postinc_13_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [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] [L1556] COND TRUE GLOBAL_CONST_FIVE==5 [L1559] 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 0.36ms. Allocated memory is still 136.3MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1474.23ms. Allocated memory is still 188.7MB. Free memory was 147.5MB in the beginning and 133.7MB in the end (delta: 13.7MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.98ms. Allocated memory is still 188.7MB. Free memory was 133.7MB in the beginning and 131.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.29ms. Allocated memory is still 188.7MB. Free memory was 131.0MB in the beginning and 129.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 401.79ms. Allocated memory is still 188.7MB. Free memory was 129.5MB in the beginning and 115.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 844.62ms. Allocated memory is still 188.7MB. Free memory was 115.7MB in the beginning and 88.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 8.95ms. Allocated memory is still 188.7MB. Free memory was 88.4MB in the beginning and 87.6MB in the end (delta: 769.5kB). 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 22:06:02,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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 0ad66e5533d7df8ae3d2e0a46b470ad16e60eb990fe66e1322f16c8f1c7069cc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 22:06:04,831 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 22:06:04,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 22:06:04,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 22:06:04,971 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 22:06:04,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 22:06:04,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 22:06:04,973 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 22:06:04,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 22:06:04,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 22:06:04,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 22:06:04,977 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 22:06:04,977 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 22:06:04,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 22:06:04,978 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 22:06:04,978 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 22:06:04,978 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 22:06:04,979 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 22:06:04,979 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 22:06:04,983 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 22:06:04,983 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 22:06:04,984 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 22:06:04,984 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 22:06:04,987 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 22:06:04,988 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 22:06:04,988 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:06:04,988 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 22:06:04,988 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 22:06:04,989 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:06:04,989 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 22:06:04,989 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 22:06:04,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 22:06:04,990 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 22:06:04,990 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 22:06:04,991 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 22:06:04,992 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_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad66e5533d7df8ae3d2e0a46b470ad16e60eb990fe66e1322f16c8f1c7069cc [2024-11-08 22:06:05,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 22:06:05,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 22:06:05,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 22:06:05,478 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 22:06:05,478 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 22:06:05,481 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_13_bad.i Unable to find full path for "g++" [2024-11-08 22:06:07,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 22:06:07,923 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 22:06:07,924 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_13_bad.i [2024-11-08 22:06:07,957 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/data/6ac2add22/6e34a3c732d545f1b2b8c74c9f39f61c/FLAG9070ad640 [2024-11-08 22:06:08,065 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/data/6ac2add22/6e34a3c732d545f1b2b8c74c9f39f61c [2024-11-08 22:06:08,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 22:06:08,069 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 22:06:08,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 22:06:08,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 22:06:08,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 22:06:08,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:06:08" (1/1) ... [2024-11-08 22:06:08,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e48ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:08, skipping insertion in model container [2024-11-08 22:06:08,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 10:06:08" (1/1) ... [2024-11-08 22:06:08,142 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 22:06:09,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:06:09,302 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 22:06:09,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 22:06:09,575 INFO L204 MainTranslator]: Completed translation [2024-11-08 22:06:09,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09 WrapperNode [2024-11-08 22:06:09,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 22:06:09,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 22:06:09,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 22:06:09,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 22:06:09,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,624 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,648 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2024-11-08 22:06:09,649 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 22:06:09,650 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 22:06:09,650 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 22:06:09,650 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 22:06:09,660 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,660 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,664 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,664 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,674 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,676 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,678 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 22:06:09,685 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 22:06:09,685 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 22:06:09,685 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 22:06:09,686 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 10:06:09" (1/1) ... [2024-11-08 22:06:09,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 22:06:09,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 22:06:09,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 22:06:09,726 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 22:06:09,751 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 22:06:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 22:06:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 22:06:09,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 22:06:09,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 22:06:09,914 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 22:06:09,916 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 22:06:10,025 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-08 22:06:10,025 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 22:06:10,094 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 22:06:10,096 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 22:06:10,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:06:10 BoogieIcfgContainer [2024-11-08 22:06:10,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 22:06:10,097 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 22:06:10,097 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 22:06:10,107 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 22:06:10,107 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:06:10" (1/1) ... [2024-11-08 22:06:10,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 22:06:10,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:10,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-08 22:06:10,174 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-08 22:06:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 22:06:10,180 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:10,181 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:06:10,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:06:10,194 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:06:10,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 22:06:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:10,332 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 22:06:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 22:06:10,355 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 22:06:10,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 22:06:10,380 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 22:06:10,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-08 22:06:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 22:06:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-08 22:06:10,420 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-08 22:06:10,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 22:06:10,421 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 22:06:10,421 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 22:06:10,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 22:06:10,426 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 22:06:10,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 22:06:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:06:10,549 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:06:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:06:10,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:06:10,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 22:06:10,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 22:06:10,689 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 22:06:10,690 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 22:06:10,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 10:06:10 ImpRootNode [2024-11-08 22:06:10,722 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 22:06:10,723 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 22:06:10,723 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 22:06:10,724 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 22:06:10,724 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 10:06:10" (3/4) ... [2024-11-08 22:06:10,727 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 22:06:10,728 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 22:06:10,729 INFO L158 Benchmark]: Toolchain (without parser) took 2659.92ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 56.6MB in the beginning and 50.3MB in the end (delta: 6.3MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2024-11-08 22:06:10,730 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 59.7MB in the end (delta: 155.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:06:10,731 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1505.78ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 56.4MB in the beginning and 61.3MB in the end (delta: -5.0MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2024-11-08 22:06:10,732 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.49ms. Allocated memory is still 109.1MB. Free memory was 61.3MB in the beginning and 58.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:06:10,733 INFO L158 Benchmark]: Boogie Preprocessor took 34.82ms. Allocated memory is still 109.1MB. Free memory was 58.7MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 22:06:10,735 INFO L158 Benchmark]: RCFGBuilder took 411.68ms. Allocated memory is still 109.1MB. Free memory was 56.7MB in the beginning and 71.1MB in the end (delta: -14.4MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-11-08 22:06:10,736 INFO L158 Benchmark]: CodeCheck took 625.20ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 50.3MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 22:06:10,737 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 109.1MB. Free memory is still 50.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 22:06:10,742 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, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 7 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, 30 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: 1559]: 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 1568. 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); [L1568] 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) [L1568] 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] [L1569] CALL CWE190_Integer_Overflow__int_max_postinc_13_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [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] [L1556] COND TRUE GLOBAL_CONST_FIVE==5 [L1559] 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 0.39ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 59.7MB in the end (delta: 155.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1505.78ms. Allocated memory was 83.9MB in the beginning and 109.1MB in the end (delta: 25.2MB). Free memory was 56.4MB in the beginning and 61.3MB in the end (delta: -5.0MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.49ms. Allocated memory is still 109.1MB. Free memory was 61.3MB in the beginning and 58.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.82ms. Allocated memory is still 109.1MB. Free memory was 58.7MB in the beginning and 56.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 411.68ms. Allocated memory is still 109.1MB. Free memory was 56.7MB in the beginning and 71.1MB in the end (delta: -14.4MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * CodeCheck took 625.20ms. Allocated memory is still 109.1MB. Free memory was 70.5MB in the beginning and 50.3MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 109.1MB. Free memory is still 50.3MB. 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 22:06:10,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69ec54df-3ccb-48d4-a3e2-25c9db1f3c17/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