./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_06_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_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/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_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_06_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/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_1de04ad1-063d-4f74-836e-da81550d9291/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 176c6d39c1634991b4c17d986f3fd04d14b2f99fdfd198c3b23fded4056db9cb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:17:41,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:17:41,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-08 23:17:41,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:17:41,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:17:41,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:17:41,319 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:17:41,319 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:17:41,320 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:17:41,320 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:17:41,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:17:41,322 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:17:41,323 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:17:41,325 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:17:41,326 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:17:41,326 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:17:41,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:17:41,327 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:17:41,327 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:17:41,327 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:17:41,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:17:41,332 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:17:41,333 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:17:41,333 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:17:41,333 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:17:41,333 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:17:41,334 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:17:41,334 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:17:41,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:17:41,334 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:17:41,335 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:17:41,335 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:17:41,335 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_1de04ad1-063d-4f74-836e-da81550d9291/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 176c6d39c1634991b4c17d986f3fd04d14b2f99fdfd198c3b23fded4056db9cb [2024-11-08 23:17:41,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:17:41,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:17:41,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:17:41,669 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:17:41,670 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:17:41,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_06_bad.i Unable to find full path for "g++" [2024-11-08 23:17:43,734 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:17:44,181 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:17:44,183 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_06_bad.i [2024-11-08 23:17:44,214 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/data/e85f028e0/7ed5690d2f94463f97f88d87868181ea/FLAG8d57469e2 [2024-11-08 23:17:44,311 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/data/e85f028e0/7ed5690d2f94463f97f88d87868181ea [2024-11-08 23:17:44,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:17:44,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:17:44,318 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:17:44,319 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:17:44,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:17:44,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:17:44" (1/1) ... [2024-11-08 23:17:44,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510a680a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:44, skipping insertion in model container [2024-11-08 23:17:44,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:17:44" (1/1) ... [2024-11-08 23:17:44,402 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:17:45,639 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:17:45,650 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:17:45,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:17:45,920 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:17:45,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45 WrapperNode [2024-11-08 23:17:45,921 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:17:45,922 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:17:45,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:17:45,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:17:45,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:45,988 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,021 INFO L138 Inliner]: procedures = 497, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-11-08 23:17:46,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:17:46,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:17:46,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:17:46,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:17:46,032 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,044 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:17:46,058 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:17:46,058 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:17:46,059 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:17:46,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:45" (1/1) ... [2024-11-08 23:17:46,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:17:46,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:17:46,103 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:17:46,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:17:46,138 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:17:46,139 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:17:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:17:46,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:17:46,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:17:46,294 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:17:46,297 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:17:46,438 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 23:17:46,438 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:17:46,505 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:17:46,505 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:17:46,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:17:46 BoogieIcfgContainer [2024-11-08 23:17:46,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:17:46,506 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:17:46,506 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:17:46,517 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:17:46,517 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:17:46" (1/1) ... [2024-11-08 23:17:46,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:17:46,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:17:46,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-08 23:17:46,595 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-08 23:17:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:17:46,600 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:17:46,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:17:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:17:46,981 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 23:17:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:17:47,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 13 states and 14 transitions. [2024-11-08 23:17:47,095 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-08 23:17:47,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:17:47,095 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:17:47,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:17:47,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:17:47,130 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:17:47,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:17:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:17:47,188 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:17:47,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:17:47,216 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 23:17:47,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:17:47 ImpRootNode [2024-11-08 23:17:47,253 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:17:47,253 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:17:47,253 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:17:47,254 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:17:47,254 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:17:46" (3/4) ... [2024-11-08 23:17:47,256 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:17:47,258 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:17:47,258 INFO L158 Benchmark]: Toolchain (without parser) took 2942.50ms. Allocated memory is still 151.0MB. Free memory was 115.9MB in the beginning and 64.4MB in the end (delta: 51.5MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2024-11-08 23:17:47,259 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 100.7MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:17:47,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1602.98ms. Allocated memory is still 151.0MB. Free memory was 115.3MB in the beginning and 109.7MB in the end (delta: 5.6MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-11-08 23:17:47,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.56ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 107.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:17:47,260 INFO L158 Benchmark]: Boogie Preprocessor took 35.14ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 105.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:17:47,261 INFO L158 Benchmark]: RCFGBuilder took 447.09ms. Allocated memory is still 151.0MB. Free memory was 105.4MB in the beginning and 91.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 23:17:47,263 INFO L158 Benchmark]: CodeCheck took 746.80ms. Allocated memory is still 151.0MB. Free memory was 91.7MB in the beginning and 65.3MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-08 23:17:47,265 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 151.0MB. Free memory was 65.3MB in the beginning and 64.4MB in the end (delta: 824.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:17:47,270 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, 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, 0.2s 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: 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 1569. 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); [L1548] static const int STATIC_CONST_FIVE = 5; [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_max_postinc_06_bad() [L1551] int data; [L1552] data = 0 [L1553] COND TRUE STATIC_CONST_FIVE==5 [L1555] data = 0x7fffffff VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE STATIC_CONST_FIVE==5 [L1560] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, 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 0.33ms. Allocated memory is still 100.7MB. Free memory is still 54.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1602.98ms. Allocated memory is still 151.0MB. Free memory was 115.3MB in the beginning and 109.7MB in the end (delta: 5.6MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.56ms. Allocated memory is still 151.0MB. Free memory was 109.7MB in the beginning and 107.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.14ms. Allocated memory is still 151.0MB. Free memory was 107.2MB in the beginning and 105.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.09ms. Allocated memory is still 151.0MB. Free memory was 105.4MB in the beginning and 91.7MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 746.80ms. Allocated memory is still 151.0MB. Free memory was 91.7MB in the beginning and 65.3MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 151.0MB. Free memory was 65.3MB in the beginning and 64.4MB in the end (delta: 824.2kB). 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 23:17:47,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/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_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/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_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_06_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/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_1de04ad1-063d-4f74-836e-da81550d9291/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 176c6d39c1634991b4c17d986f3fd04d14b2f99fdfd198c3b23fded4056db9cb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:17:49,728 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:17:49,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-08 23:17:49,888 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:17:49,890 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:17:49,890 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:17:49,891 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:17:49,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:17:49,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:17:49,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:17:49,893 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:17:49,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:17:49,894 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:17:49,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:17:49,898 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:17:49,899 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:17:49,899 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:17:49,900 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 23:17:49,900 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:17:49,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 23:17:49,901 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:17:49,905 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:17:49,906 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:17:49,906 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:17:49,907 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:17:49,907 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:17:49,908 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:17:49,908 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:17:49,909 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:17:49,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:17:49,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:17:49,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:17:49,913 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:17:49,913 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:17:49,913 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:17:49,914 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_1de04ad1-063d-4f74-836e-da81550d9291/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 176c6d39c1634991b4c17d986f3fd04d14b2f99fdfd198c3b23fded4056db9cb [2024-11-08 23:17:50,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:17:50,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:17:50,334 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:17:50,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:17:50,338 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:17:50,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_06_bad.i Unable to find full path for "g++" [2024-11-08 23:17:52,304 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:17:52,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:17:52,748 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_postinc_06_bad.i [2024-11-08 23:17:52,778 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/data/e5fad7b67/01c6488b30bf4b75b371b7484e2ca63d/FLAGf317e6a0c [2024-11-08 23:17:52,798 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/data/e5fad7b67/01c6488b30bf4b75b371b7484e2ca63d [2024-11-08 23:17:52,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:17:52,802 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:17:52,803 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:17:52,804 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:17:52,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:17:52,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:17:52" (1/1) ... [2024-11-08 23:17:52,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c46662 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:52, skipping insertion in model container [2024-11-08 23:17:52,815 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:17:52" (1/1) ... [2024-11-08 23:17:52,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:17:54,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:17:54,220 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:17:54,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:17:54,503 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:17:54,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54 WrapperNode [2024-11-08 23:17:54,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:17:54,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:17:54,506 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:17:54,506 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:17:54,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,545 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,572 INFO L138 Inliner]: procedures = 502, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-11-08 23:17:54,573 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:17:54,575 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:17:54,575 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:17:54,576 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:17:54,585 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,595 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,606 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,613 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:17:54,614 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:17:54,621 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:17:54,621 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:17:54,622 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:17:54" (1/1) ... [2024-11-08 23:17:54,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:17:54,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:17:54,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:17:54,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:17:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 23:17:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 23:17:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:17:54,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:17:54,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:17:54,915 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:17:54,917 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:17:55,075 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-08 23:17:55,076 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:17:55,156 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:17:55,156 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 23:17:55,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:17:55 BoogieIcfgContainer [2024-11-08 23:17:55,157 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:17:55,158 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:17:55,158 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:17:55,169 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:17:55,169 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:17:55" (1/1) ... [2024-11-08 23:17:55,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:17:55,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:17:55,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-08 23:17:55,267 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-08 23:17:55,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 23:17:55,272 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:17:55,273 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:17:55,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:17:55,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:17:55,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:17:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:17:55,417 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:17:55,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:17:55,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 23:17:55,448 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 23:17:55,469 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 23:17:55,471 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-08 23:17:55,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-08 23:17:55,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:17:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-08 23:17:55,499 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-08 23:17:55,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 23:17:55,500 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:17:55,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:17:55,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:17:55,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:17:55,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-08 23:17:55,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:17:55,656 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:17:55,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:17:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:17:55,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:17:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:17:55,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-08 23:17:55,776 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-08 23:17:55,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:17:55 ImpRootNode [2024-11-08 23:17:55,809 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:17:55,809 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:17:55,810 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:17:55,810 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:17:55,810 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:17:55" (3/4) ... [2024-11-08 23:17:55,813 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:17:55,814 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:17:55,815 INFO L158 Benchmark]: Toolchain (without parser) took 3013.28ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 49.2MB in the beginning and 68.0MB in the end (delta: -18.8MB). Peak memory consumption was 20.6MB. Max. memory is 16.1GB. [2024-11-08 23:17:55,817 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:17:55,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1701.23ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 49.0MB in the beginning and 74.2MB in the end (delta: -25.3MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-11-08 23:17:55,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.94ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 71.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:17:55,819 INFO L158 Benchmark]: Boogie Preprocessor took 37.81ms. Allocated memory is still 113.2MB. Free memory was 71.5MB in the beginning and 69.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:17:55,820 INFO L158 Benchmark]: RCFGBuilder took 543.64ms. Allocated memory is still 113.2MB. Free memory was 69.3MB in the beginning and 53.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 23:17:55,821 INFO L158 Benchmark]: CodeCheck took 650.92ms. Allocated memory is still 113.2MB. Free memory was 53.2MB in the beginning and 68.0MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:17:55,821 INFO L158 Benchmark]: Witness Printer took 5.20ms. Allocated memory is still 113.2MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:17:55,826 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, 31 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 1569. 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); [L1548] static const int STATIC_CONST_FIVE = 5; [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_max_postinc_06_bad() [L1551] int data; [L1552] data = 0 [L1553] COND TRUE STATIC_CONST_FIVE==5 [L1555] data = 0x7fffffff VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] COND TRUE STATIC_CONST_FIVE==5 [L1560] data++ VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FIVE=5, 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 0.26ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1701.23ms. Allocated memory was 75.5MB in the beginning and 113.2MB in the end (delta: 37.7MB). Free memory was 49.0MB in the beginning and 74.2MB in the end (delta: -25.3MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.94ms. Allocated memory is still 113.2MB. Free memory was 74.2MB in the beginning and 71.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.81ms. Allocated memory is still 113.2MB. Free memory was 71.5MB in the beginning and 69.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 543.64ms. Allocated memory is still 113.2MB. Free memory was 69.3MB in the beginning and 53.2MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 650.92ms. Allocated memory is still 113.2MB. Free memory was 53.2MB in the beginning and 68.0MB in the end (delta: -14.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.20ms. Allocated memory is still 113.2MB. Free memory is still 68.0MB. 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 23:17:55,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1de04ad1-063d-4f74-836e-da81550d9291/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample