./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_square_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/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_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_square_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/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_c9408246-bc50-4756-8d30-fa2707380723/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 abe14a6f71500040e80d130bd1aaa111dda795718c43dff396cea3e3505ec8e4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:16:05,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:16:05,531 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-09 00:16:05,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 00:16:05,537 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-09 00:16:05,581 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:16:05,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:16:05,584 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:16:05,585 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:16:05,587 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:16:05,588 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:16:05,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:16:05,589 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 00:16:05,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:16:05,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:16:05,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:16:05,594 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:16:05,594 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:16:05,595 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:16:05,595 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:16:05,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:16:05,596 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:16:05,600 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:16:05,600 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:16:05,600 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:16:05,601 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:16:05,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:16:05,602 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:16:05,602 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:16:05,602 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:16:05,603 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-09 00:16:05,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 00:16:05,607 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_c9408246-bc50-4756-8d30-fa2707380723/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abe14a6f71500040e80d130bd1aaa111dda795718c43dff396cea3e3505ec8e4 [2024-11-09 00:16:05,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:16:05,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:16:05,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:16:05,941 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:16:05,944 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:16:05,945 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_square_66_bad.i Unable to find full path for "g++" [2024-11-09 00:16:08,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:16:08,874 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:16:08,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_square_66_bad.i [2024-11-09 00:16:08,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/data/4457197f9/5db63b29df7e46e991204eecfc115cd7/FLAGa119b0336 [2024-11-09 00:16:08,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/data/4457197f9/5db63b29df7e46e991204eecfc115cd7 [2024-11-09 00:16:08,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:16:08,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:16:08,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:16:08,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:16:08,972 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:16:08,973 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:16:08" (1/1) ... [2024-11-09 00:16:08,974 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a0a3d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:08, skipping insertion in model container [2024-11-09 00:16:08,977 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:16:08" (1/1) ... [2024-11-09 00:16:09,085 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:16:11,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:16:11,908 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:16:12,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:16:12,666 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:16:12,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12 WrapperNode [2024-11-09 00:16:12,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:16:12,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:16:12,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:16:12,673 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:16:12,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,721 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,766 INFO L138 Inliner]: procedures = 936, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2024-11-09 00:16:12,767 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:16:12,768 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:16:12,768 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:16:12,768 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:16:12,782 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,790 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,791 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,811 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,818 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,838 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:16:12,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:16:12,843 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:16:12,843 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:16:12,844 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:12" (1/1) ... [2024-11-09 00:16:12,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:16:12,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:16:12,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:16:12,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:16:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 00:16:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:16:12,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:16:12,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:16:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:16:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 00:16:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:16:12,966 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:16:12,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:16:13,155 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:16:13,157 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:16:13,294 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 00:16:13,294 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:16:13,330 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:16:13,331 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:16:13,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:16:13 BoogieIcfgContainer [2024-11-09 00:16:13,331 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:16:13,332 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:16:13,332 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:16:13,343 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:16:13,343 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:16:13" (1/1) ... [2024-11-09 00:16:13,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:16:13,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:16:13,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-09 00:16:13,408 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-09 00:16:13,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:16:13,412 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:16:13,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:16:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:16:13,617 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 00:16:13,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:16:13,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-09 00:16:13,635 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-09 00:16:13,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:16:13,635 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:16:13,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 00:16:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 00:16:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:16:13,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:16:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:16:13,783 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-09 00:16:13,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:16:13 ImpRootNode [2024-11-09 00:16:13,811 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:16:13,812 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:16:13,812 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:16:13,812 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:16:13,813 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:16:13" (3/4) ... [2024-11-09 00:16:13,815 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:16:13,816 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:16:13,817 INFO L158 Benchmark]: Toolchain (without parser) took 4856.21ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 123.7MB in the beginning and 103.7MB in the end (delta: 20.0MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2024-11-09 00:16:13,818 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:16:13,819 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3707.17ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 123.7MB in the beginning and 147.4MB in the end (delta: -23.7MB). Peak memory consumption was 85.3MB. Max. memory is 16.1GB. [2024-11-09 00:16:13,819 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.78ms. Allocated memory is still 209.7MB. Free memory was 147.4MB in the beginning and 143.6MB in the end (delta: 3.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:16:13,820 INFO L158 Benchmark]: Boogie Preprocessor took 70.68ms. Allocated memory is still 209.7MB. Free memory was 143.6MB in the beginning and 141.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:16:13,821 INFO L158 Benchmark]: RCFGBuilder took 488.59ms. Allocated memory is still 209.7MB. Free memory was 141.5MB in the beginning and 125.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 00:16:13,821 INFO L158 Benchmark]: CodeCheck took 478.89ms. Allocated memory is still 209.7MB. Free memory was 125.7MB in the beginning and 103.7MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 00:16:13,822 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 209.7MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:16:13,825 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 6 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 34 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 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: 1854]: 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 1845. 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); [L1845] 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) [L1845] 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] [L1846] CALL CWE190_Integer_Overflow__int_max_square_66_bad() [L1835] int data; [L1836] int dataArray[5]; [L1837] data = 0 [L1838] data = 0x7fffffff [L1839] dataArray[2] = data [L1840] CALL CWE190_Integer_Overflow__int_max_square_66b_badSink(dataArray) [L1852] EXPR dataArray[2] [L1852] int data = dataArray[2]; [L1854] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3707.17ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 123.7MB in the beginning and 147.4MB in the end (delta: -23.7MB). Peak memory consumption was 85.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.78ms. Allocated memory is still 209.7MB. Free memory was 147.4MB in the beginning and 143.6MB in the end (delta: 3.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.68ms. Allocated memory is still 209.7MB. Free memory was 143.6MB in the beginning and 141.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.59ms. Allocated memory is still 209.7MB. Free memory was 141.5MB in the beginning and 125.7MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 478.89ms. Allocated memory is still 209.7MB. Free memory was 125.7MB in the beginning and 103.7MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 209.7MB. Free memory is still 103.7MB. 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 00:16:13,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/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_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_square_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/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_c9408246-bc50-4756-8d30-fa2707380723/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 abe14a6f71500040e80d130bd1aaa111dda795718c43dff396cea3e3505ec8e4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 00:16:16,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 00:16:16,371 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-09 00:16:16,426 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 00:16:16,429 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 00:16:16,430 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-09 00:16:16,431 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 00:16:16,432 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 00:16:16,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 00:16:16,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 00:16:16,434 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 00:16:16,434 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 00:16:16,435 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 00:16:16,435 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 00:16:16,438 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 00:16:16,438 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 00:16:16,439 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 00:16:16,440 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 00:16:16,440 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 00:16:16,441 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 00:16:16,441 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 00:16:16,445 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 00:16:16,445 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-09 00:16:16,446 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-09 00:16:16,446 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-09 00:16:16,446 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:16:16,447 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-09 00:16:16,447 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 00:16:16,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:16:16,448 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 00:16:16,448 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 00:16:16,448 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 00:16:16,449 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 00:16:16,449 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 00:16:16,449 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-09 00:16:16,450 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_c9408246-bc50-4756-8d30-fa2707380723/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abe14a6f71500040e80d130bd1aaa111dda795718c43dff396cea3e3505ec8e4 [2024-11-09 00:16:16,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 00:16:16,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 00:16:16,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 00:16:16,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 00:16:16,878 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 00:16:16,880 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_square_66_bad.i Unable to find full path for "g++" [2024-11-09 00:16:19,180 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 00:16:19,742 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 00:16:19,743 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_square_66_bad.i [2024-11-09 00:16:19,781 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/data/b5af303bd/45d41f0dbe034ea5889496ad65e6aa18/FLAG247d65fa5 [2024-11-09 00:16:20,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/data/b5af303bd/45d41f0dbe034ea5889496ad65e6aa18 [2024-11-09 00:16:20,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 00:16:20,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 00:16:20,305 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 00:16:20,305 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 00:16:20,311 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 00:16:20,312 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:16:20" (1/1) ... [2024-11-09 00:16:20,313 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571135e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:20, skipping insertion in model container [2024-11-09 00:16:20,314 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 12:16:20" (1/1) ... [2024-11-09 00:16:20,391 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 00:16:22,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:16:22,354 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 00:16:22,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 00:16:23,009 INFO L204 MainTranslator]: Completed translation [2024-11-09 00:16:23,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23 WrapperNode [2024-11-09 00:16:23,009 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 00:16:23,011 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 00:16:23,011 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 00:16:23,011 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 00:16:23,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,091 INFO L138 Inliner]: procedures = 941, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 47 [2024-11-09 00:16:23,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 00:16:23,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 00:16:23,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 00:16:23,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 00:16:23,103 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,122 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,125 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,127 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 00:16:23,132 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 00:16:23,132 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 00:16:23,132 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 00:16:23,133 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 12:16:23" (1/1) ... [2024-11-09 00:16:23,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-09 00:16:23,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-09 00:16:23,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-09 00:16:23,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-09 00:16:23,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 00:16:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 00:16:23,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 00:16:23,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 00:16:23,224 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 00:16:23,224 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 00:16:23,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 00:16:23,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-11-09 00:16:23,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-11-09 00:16:23,475 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 00:16:23,477 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 00:16:26,569 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-09 00:16:26,570 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 00:16:26,613 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 00:16:26,614 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 00:16:26,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:16:26 BoogieIcfgContainer [2024-11-09 00:16:26,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 00:16:26,615 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-09 00:16:26,615 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-09 00:16:26,626 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-09 00:16:26,627 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:16:26" (1/1) ... [2024-11-09 00:16:26,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 00:16:26,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:16:26,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-09 00:16:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-09 00:16:26,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 00:16:26,691 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:16:26,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:16:26,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:16:26,695 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:16:26,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-09 00:16:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:16:26,955 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-09 00:16:27,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 00:16:27,027 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 00:16:27,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 00:16:27,153 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 00:16:27,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-09 00:16:29,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-09 00:16:29,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-09 00:16:29,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2024-11-09 00:16:29,577 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2024-11-09 00:16:29,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 00:16:29,578 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-09 00:16:29,578 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 00:16:29,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-09 00:16:29,580 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 00:16:29,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-09 00:16:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:16:29,881 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:16:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:16:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:16:30,175 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 00:16:30,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 00:16:30,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2024-11-09 00:16:30,281 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2024-11-09 00:16:30,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.11 12:16:30 ImpRootNode [2024-11-09 00:16:30,308 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-09 00:16:30,309 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 00:16:30,309 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 00:16:30,309 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 00:16:30,310 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 12:16:26" (3/4) ... [2024-11-09 00:16:30,314 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 00:16:30,315 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 00:16:30,318 INFO L158 Benchmark]: Toolchain (without parser) took 10013.29ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 46.8MB in the beginning and 35.4MB in the end (delta: 11.4MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2024-11-09 00:16:30,319 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:16:30,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2705.35ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 46.6MB in the beginning and 58.2MB in the end (delta: -11.6MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2024-11-09 00:16:30,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.83ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 54.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 00:16:30,322 INFO L158 Benchmark]: Boogie Preprocessor took 38.82ms. Allocated memory is still 92.3MB. Free memory was 54.1MB in the beginning and 52.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:16:30,322 INFO L158 Benchmark]: RCFGBuilder took 3482.84ms. Allocated memory is still 92.3MB. Free memory was 52.0MB in the beginning and 34.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 00:16:30,323 INFO L158 Benchmark]: CodeCheck took 3693.42ms. Allocated memory is still 92.3MB. Free memory was 34.5MB in the beginning and 36.1MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 00:16:30,324 INFO L158 Benchmark]: Witness Printer took 6.16ms. Allocated memory is still 92.3MB. Free memory was 36.1MB in the beginning and 35.4MB in the end (delta: 676.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 00:16:30,328 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, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 5 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 36 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, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 2 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 11 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: 1854]: 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 1845. 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); [L1845] 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) [L1845] 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] [L1846] CALL CWE190_Integer_Overflow__int_max_square_66_bad() [L1835] int data; [L1836] int dataArray[5]; [L1837] data = 0 [L1838] data = 0x7fffffff [L1839] dataArray[2] = data [L1840] CALL CWE190_Integer_Overflow__int_max_square_66b_badSink(dataArray) [L1852] EXPR dataArray[2] [L1852] int data = dataArray[2]; [L1854] data * data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 56.6MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2705.35ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 46.6MB in the beginning and 58.2MB in the end (delta: -11.6MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.83ms. Allocated memory is still 92.3MB. Free memory was 58.2MB in the beginning and 54.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.82ms. Allocated memory is still 92.3MB. Free memory was 54.1MB in the beginning and 52.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3482.84ms. Allocated memory is still 92.3MB. Free memory was 52.0MB in the beginning and 34.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3693.42ms. Allocated memory is still 92.3MB. Free memory was 34.5MB in the beginning and 36.1MB in the end (delta: -1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.16ms. Allocated memory is still 92.3MB. Free memory was 36.1MB in the beginning and 35.4MB in the end (delta: 676.6kB). 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 [2024-11-09 00:16:30,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9408246-bc50-4756-8d30-fa2707380723/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