./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_multiply_42_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_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/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_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/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_b3e2ffe9-6ac8-4451-8905-01865f617a54/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 d48dc1e3ee9d752bd812797731bce657c397954292f70a8dfe7282b133d8c7f6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:22:39,118 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:22:39,182 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:22:39,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:22:39,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:22:39,208 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:22:39,209 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:22:39,210 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:22:39,210 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:22:39,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:22:39,211 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:22:39,211 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:22:39,212 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:22:39,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:22:39,213 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:22:39,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:22:39,214 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:22:39,214 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:22:39,214 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:22:39,215 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:22:39,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:22:39,216 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:22:39,216 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:22:39,217 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:22:39,217 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:22:39,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:22:39,218 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:22:39,218 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:22:39,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:22:39,219 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:22:39,220 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:22:39,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:22:39,220 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_b3e2ffe9-6ac8-4451-8905-01865f617a54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d48dc1e3ee9d752bd812797731bce657c397954292f70a8dfe7282b133d8c7f6 [2024-11-09 00:22:39,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:22:39,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:22:39,489 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:22:39,490 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:22:39,491 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:22:39,492 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_multiply_42_bad.i Unable to find full path for "g++" [2024-11-09 00:22:41,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:22:41,955 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:22:41,956 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_multiply_42_bad.i [2024-11-09 00:22:41,987 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/data/75f85a00a/18342d1b97f340358b1f095fb15e6f17/FLAGce036c517 [2024-11-09 00:22:42,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/data/75f85a00a/18342d1b97f340358b1f095fb15e6f17 [2024-11-09 00:22:42,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:22:42,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:22:42,021 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:22:42,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:22:42,028 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:22:42,028 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:22:42" (1/1) ... [2024-11-09 00:22:42,030 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69c50411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:42, skipping insertion in model container [2024-11-09 00:22:42,032 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:22:42" (1/1) ... [2024-11-09 00:22:42,112 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:22:43,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:22:43,212 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:22:43,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:22:43,453 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:22:43,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43 WrapperNode [2024-11-09 00:22:43,454 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:22:43,455 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:22:43,456 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:22:43,456 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:22:43,464 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,535 INFO L138 Inliner]: procedures = 498, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 50 [2024-11-09 00:22:43,535 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:22:43,536 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:22:43,536 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:22:43,536 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:22:43,548 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,553 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,558 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,568 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,573 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,574 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:22:43,581 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:22:43,581 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:22:43,613 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:22:43,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:43" (1/1) ... [2024-11-09 00:22:43,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:22:43,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:22:43,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:22:43,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:22:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:22:43,684 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:22:43,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:22:43,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:22:43,685 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:22:43,834 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:22:43,836 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:22:43,948 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 00:22:43,948 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:22:44,010 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:22:44,011 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:22:44,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:22:44 BoogieIcfgContainer [2024-11-09 00:22:44,011 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:22:44,012 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:22:44,012 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:22:44,023 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:22:44,023 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:22:44" (1/1) ... [2024-11-09 00:22:44,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:22:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:22:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-09 00:22:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-09 00:22:44,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:22:44,088 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:22:44,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:22:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:22:44,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:22:44,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:22:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-09 00:22:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-09 00:22:44,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:22:44,384 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:22:44,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:22:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:22:44,428 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:22:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:22:44,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:22:44,530 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:22:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:22:44,567 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-09 00:22:44,604 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:22:44 ImpRootNode [2024-11-09 00:22:44,604 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:22:44,604 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:22:44,605 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:22:44,605 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:22:44,606 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:22:44" (3/4) ... [2024-11-09 00:22:44,609 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:22:44,610 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:22:44,611 INFO L158 Benchmark]: Toolchain (without parser) took 2592.54ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 100.5MB in the end (delta: 21.3MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2024-11-09 00:22:44,612 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:22:44,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1433.44ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 56.9MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2024-11-09 00:22:44,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.17ms. Allocated memory is still 167.8MB. Free memory was 56.9MB in the beginning and 54.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:22:44,614 INFO L158 Benchmark]: Boogie Preprocessor took 40.64ms. Allocated memory is still 167.8MB. Free memory was 54.0MB in the beginning and 52.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:22:44,615 INFO L158 Benchmark]: RCFGBuilder took 430.23ms. Allocated memory is still 167.8MB. Free memory was 52.6MB in the beginning and 123.3MB in the end (delta: -70.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-11-09 00:22:44,617 INFO L158 Benchmark]: CodeCheck took 591.71ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 100.5MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 00:22:44,617 INFO L158 Benchmark]: Witness Printer took 5.73ms. Allocated memory is still 167.8MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:22:44,620 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 1567. 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); [L1567] 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) [L1567] 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] [L1568] CALL CWE190_Integer_Overflow__int_fscanf_multiply_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1551] return data; [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1558] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] data * 2 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 0.24ms. Allocated memory is still 125.8MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1433.44ms. Allocated memory is still 167.8MB. Free memory was 121.8MB in the beginning and 56.9MB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.17ms. Allocated memory is still 167.8MB. Free memory was 56.9MB in the beginning and 54.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.64ms. Allocated memory is still 167.8MB. Free memory was 54.0MB in the beginning and 52.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 430.23ms. Allocated memory is still 167.8MB. Free memory was 52.6MB in the beginning and 123.3MB in the end (delta: -70.8MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * CodeCheck took 591.71ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 100.5MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.73ms. Allocated memory is still 167.8MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:22:44,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/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_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/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_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/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_b3e2ffe9-6ac8-4451-8905-01865f617a54/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 d48dc1e3ee9d752bd812797731bce657c397954292f70a8dfe7282b133d8c7f6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:22:47,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:22:47,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-09 00:22:47,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:22:47,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:22:47,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:22:47,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:22:47,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:22:47,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:22:47,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:22:47,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:22:47,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:22:47,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:22:47,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:22:47,166 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:22:47,166 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:22:47,167 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:22:47,167 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:22:47,167 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:22:47,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:22:47,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:22:47,169 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:22:47,169 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:22:47,169 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:22:47,170 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:22:47,170 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:22:47,171 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:22:47,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:22:47,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:22:47,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:22:47,172 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:22:47,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:22:47,173 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:22:47,173 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:22:47,174 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:22:47,174 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_b3e2ffe9-6ac8-4451-8905-01865f617a54/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d48dc1e3ee9d752bd812797731bce657c397954292f70a8dfe7282b133d8c7f6 [2024-11-09 00:22:47,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:22:47,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:22:47,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:22:47,583 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:22:47,584 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:22:47,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_multiply_42_bad.i Unable to find full path for "g++" [2024-11-09 00:22:49,896 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:22:50,425 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:22:50,430 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_multiply_42_bad.i [2024-11-09 00:22:50,470 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/data/54866fa71/bbebedc6596e484cb52d932b6ce7e98e/FLAG074ba306c [2024-11-09 00:22:50,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/data/54866fa71/bbebedc6596e484cb52d932b6ce7e98e [2024-11-09 00:22:50,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:22:50,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:22:50,496 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:22:50,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:22:50,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:22:50,505 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:22:50" (1/1) ... [2024-11-09 00:22:50,507 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@733086f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:50, skipping insertion in model container [2024-11-09 00:22:50,507 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:22:50" (1/1) ... [2024-11-09 00:22:50,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:22:51,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:22:52,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:22:52,176 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:22:52,449 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:22:52,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52 WrapperNode [2024-11-09 00:22:52,450 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:22:52,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:22:52,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:22:52,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:22:52,466 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,540 INFO L138 Inliner]: procedures = 503, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 48 [2024-11-09 00:22:52,541 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:22:52,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:22:52,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:22:52,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:22:52,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,567 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,594 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,599 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:22:52,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:22:52,608 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:22:52,619 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:22:52,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:22:52" (1/1) ... [2024-11-09 00:22:52,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:22:52,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:22:52,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:22:52,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:22:52,689 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:22:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:22:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:22:52,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:22:52,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:22:52,943 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:22:52,946 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:22:53,164 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 00:22:53,164 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:22:53,252 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:22:53,252 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:22:53,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:22:53 BoogieIcfgContainer [2024-11-09 00:22:53,253 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:22:53,254 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:22:53,254 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:22:53,268 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:22:53,268 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:22:53" (1/1) ... [2024-11-09 00:22:53,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:22:53,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:22:53,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2024-11-09 00:22:53,358 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2024-11-09 00:22:53,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:22:53,365 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:22:53,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:22:53,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:22:53,370 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:22:53,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:22:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:22:53,589 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:22:53,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:22:53,631 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 00:22:53,638 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:22:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 00:22:53,692 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-09 00:22:53,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:22:53,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:22:53,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-09 00:22:53,766 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-09 00:22:53,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 00:22:53,766 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:22:53,766 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:22:53,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:22:53,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:22:53,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-09 00:22:53,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:22:53,957 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:22:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:22:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:22:54,102 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:22:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:22:54,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-09 00:22:54,151 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-09 00:22:54,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:22:54 ImpRootNode [2024-11-09 00:22:54,194 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:22:54,196 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:22:54,196 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:22:54,196 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:22:54,197 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:22:53" (3/4) ... [2024-11-09 00:22:54,200 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:22:54,202 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:22:54,204 INFO L158 Benchmark]: Toolchain (without parser) took 3708.59ms. Allocated memory was 77.6MB in the beginning and 109.1MB in the end (delta: 31.5MB). Free memory was 49.5MB in the beginning and 73.3MB in the end (delta: -23.9MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-11-09 00:22:54,205 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 77.6MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:22:54,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1954.23ms. Allocated memory was 77.6MB in the beginning and 109.1MB in the end (delta: 31.5MB). Free memory was 49.2MB in the beginning and 55.0MB in the end (delta: -5.7MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-11-09 00:22:54,207 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.78ms. Allocated memory is still 109.1MB. Free memory was 55.0MB in the beginning and 51.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:22:54,208 INFO L158 Benchmark]: Boogie Preprocessor took 63.73ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 50.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:22:54,209 INFO L158 Benchmark]: RCFGBuilder took 645.58ms. Allocated memory is still 109.1MB. Free memory was 50.2MB in the beginning and 64.6MB in the end (delta: -14.4MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2024-11-09 00:22:54,211 INFO L158 Benchmark]: CodeCheck took 940.60ms. Allocated memory is still 109.1MB. Free memory was 64.0MB in the beginning and 74.0MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:22:54,212 INFO L158 Benchmark]: Witness Printer took 6.55ms. Allocated memory is still 109.1MB. Free memory was 74.0MB in the beginning and 73.3MB in the end (delta: 619.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:22:54,218 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 6 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 2 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 1567. 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); [L1567] 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) [L1567] 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] [L1568] CALL CWE190_Integer_Overflow__int_fscanf_multiply_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1551] return data; [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1558] COND TRUE data > 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] data * 2 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 0.23ms. Allocated memory is still 77.6MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1954.23ms. Allocated memory was 77.6MB in the beginning and 109.1MB in the end (delta: 31.5MB). Free memory was 49.2MB in the beginning and 55.0MB in the end (delta: -5.7MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.78ms. Allocated memory is still 109.1MB. Free memory was 55.0MB in the beginning and 51.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.73ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 50.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 645.58ms. Allocated memory is still 109.1MB. Free memory was 50.2MB in the beginning and 64.6MB in the end (delta: -14.4MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * CodeCheck took 940.60ms. Allocated memory is still 109.1MB. Free memory was 64.0MB in the beginning and 74.0MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.55ms. Allocated memory is still 109.1MB. Free memory was 74.0MB in the beginning and 73.3MB in the end (delta: 619.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 00:22:54,274 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3e2ffe9-6ac8-4451-8905-01865f617a54/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