./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3 --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 acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:14:47,715 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:14:47,805 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 05:14:47,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 05:14:47,811 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 05:14:47,832 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:14:47,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:14:47,833 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:14:47,833 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:14:47,833 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:14:47,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:14:47,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:14:47,834 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:14:47,835 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:14:47,837 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:14:47,837 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:14:47,837 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:14:47,837 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:14:47,837 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:47,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:14:47,837 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:14:47,837 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:14:47,838 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 05:14:47,838 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 05:14:47,838 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3 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 -> acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 [2024-11-25 05:14:48,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:14:48,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:14:48,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:14:48,147 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:14:48,148 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:14:48,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-11-25 05:14:51,314 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data/746c82b9b/bd25e4e8fd77407a86c14e98dde6f94c/FLAG1c202c780 [2024-11-25 05:14:51,726 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:14:51,727 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-11-25 05:14:51,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data/746c82b9b/bd25e4e8fd77407a86c14e98dde6f94c/FLAG1c202c780 [2024-11-25 05:14:51,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data/746c82b9b/bd25e4e8fd77407a86c14e98dde6f94c [2024-11-25 05:14:51,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:14:51,876 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:14:51,877 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:14:51,877 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:14:51,882 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:14:51,883 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:14:51" (1/1) ... [2024-11-25 05:14:51,884 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ecaacb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:51, skipping insertion in model container [2024-11-25 05:14:51,884 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:14:51" (1/1) ... [2024-11-25 05:14:51,932 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:14:52,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:14:52,863 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:14:52,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:14:53,120 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:14:53,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53 WrapperNode [2024-11-25 05:14:53,121 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:14:53,122 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:14:53,122 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:14:53,122 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:14:53,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,190 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2024-11-25 05:14:53,190 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:14:53,191 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:14:53,191 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:14:53,191 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:14:53,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,200 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,211 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,214 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,216 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,218 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:14:53,222 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:14:53,222 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:14:53,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:14:53,223 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:53,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:14:53,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:14:53,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:14:53,295 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 05:14:53,296 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 05:14:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:14:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:14:53,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:14:53,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 05:14:53,435 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:14:53,437 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:14:53,539 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-25 05:14:53,539 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:14:53,574 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:14:53,575 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 05:14:53,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:53 BoogieIcfgContainer [2024-11-25 05:14:53,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:14:53,578 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:14:53,578 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:14:53,590 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:14:53,590 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:53" (1/1) ... [2024-11-25 05:14:53,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:14:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:53,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 05:14:53,648 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 05:14:53,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 05:14:53,652 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:53,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:53,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:53,785 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:14:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:53,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:53,895 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:14:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:14:53,949 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 05:14:53,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 05:14:53 ImpRootNode [2024-11-25 05:14:53,991 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 05:14:53,992 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 05:14:53,992 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 05:14:53,992 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 05:14:53,993 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:53" (3/4) ... [2024-11-25 05:14:53,999 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 05:14:54,000 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 05:14:54,001 INFO L158 Benchmark]: Toolchain (without parser) took 2125.39ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 45.0MB in the end (delta: 45.4MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2024-11-25 05:14:54,002 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:54,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1243.83ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 81.0MB in the end (delta: 9.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-25 05:14:54,003 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.96ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:14:54,004 INFO L158 Benchmark]: Boogie Preprocessor took 27.33ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:54,004 INFO L158 Benchmark]: RCFGBuilder took 354.82ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 63.1MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:14:54,007 INFO L158 Benchmark]: CodeCheck took 413.20ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 45.0MB in the end (delta: 18.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-25 05:14:54,007 INFO L158 Benchmark]: Witness Printer took 8.56ms. Allocated memory is still 117.4MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:54,011 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] --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 0.70ms. Allocated memory is still 167.8MB. Free memory is still 103.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1243.83ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 81.0MB in the end (delta: 9.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.96ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 78.5MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.33ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 77.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 354.82ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 63.1MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 413.20ms. Allocated memory is still 117.4MB. Free memory was 63.1MB in the beginning and 45.0MB in the end (delta: 18.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 8.56ms. Allocated memory is still 117.4MB. Free memory is still 45.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 05:14:54,033 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3 --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 acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:14:56,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:14:56,942 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 05:14:56,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:14:56,991 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:14:56,991 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:14:56,991 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:14:56,991 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:14:56,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:14:56,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:14:56,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:14:56,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:14:56,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:14:56,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:14:56,994 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:14:56,994 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:14:56,995 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:14:56,995 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 05:14:56,996 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 05:14:56,996 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:14:56,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:56,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:14:56,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:14:56,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:14:56,996 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 05:14:56,996 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 05:14:56,996 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 05:14:56,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3 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 -> acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 [2024-11-25 05:14:57,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:14:57,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:14:57,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:14:57,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:14:57,349 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:14:57,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-11-25 05:15:00,224 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data/8cad916a0/aaeab4845da944cb88afb2883c5be439/FLAGccb7e692c [2024-11-25 05:15:00,669 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:15:00,673 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-11-25 05:15:00,710 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data/8cad916a0/aaeab4845da944cb88afb2883c5be439/FLAGccb7e692c [2024-11-25 05:15:00,813 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/data/8cad916a0/aaeab4845da944cb88afb2883c5be439 [2024-11-25 05:15:00,819 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:15:00,821 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:15:00,822 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:15:00,823 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:15:00,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:15:00,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:00" (1/1) ... [2024-11-25 05:15:00,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27222c67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:00, skipping insertion in model container [2024-11-25 05:15:00,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:15:00" (1/1) ... [2024-11-25 05:15:00,893 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:15:01,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:15:01,996 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:15:02,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:15:02,316 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:15:02,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02 WrapperNode [2024-11-25 05:15:02,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:15:02,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:15:02,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:15:02,318 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:15:02,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,349 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,368 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2024-11-25 05:15:02,369 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:15:02,369 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:15:02,369 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:15:02,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:15:02,378 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,383 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,383 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,398 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,404 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,406 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,412 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:15:02,413 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:15:02,413 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:15:02,413 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:15:02,414 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:15:02,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:15:02,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:15:02,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:15:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 05:15:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 05:15:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 05:15:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:15:02,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:15:02,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:15:02,611 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:15:02,612 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:15:02,748 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-25 05:15:02,748 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:15:02,813 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:15:02,813 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 05:15:02,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:02 BoogieIcfgContainer [2024-11-25 05:15:02,814 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:15:02,814 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:15:02,814 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:15:02,826 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:15:02,826 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:02" (1/1) ... [2024-11-25 05:15:02,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:15:02,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:15:02,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2024-11-25 05:15:02,907 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-25 05:15:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 05:15:02,910 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:15:02,911 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 05:15:02,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 05:15:02,915 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 05:15:02,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 05:15:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:15:03,152 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:15:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:15:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:15:03,280 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 05:15:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 05:15:03,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 05:15:03,331 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-25 05:15:03,365 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 05:15:03 ImpRootNode [2024-11-25 05:15:03,365 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 05:15:03,366 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 05:15:03,366 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 05:15:03,367 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 05:15:03,368 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:15:02" (3/4) ... [2024-11-25 05:15:03,370 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 05:15:03,371 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 05:15:03,374 INFO L158 Benchmark]: Toolchain (without parser) took 2551.23ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 36.5MB in the end (delta: 20.6MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2024-11-25 05:15:03,375 INFO L158 Benchmark]: CDTParser took 3.52ms. Allocated memory is still 83.9MB. Free memory was 64.5MB in the beginning and 64.4MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:03,375 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1495.23ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 51.1MB in the end (delta: 5.6MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. [2024-11-25 05:15:03,375 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.76ms. Allocated memory is still 83.9MB. Free memory was 51.1MB in the beginning and 48.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:03,375 INFO L158 Benchmark]: Boogie Preprocessor took 42.71ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 46.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:03,376 INFO L158 Benchmark]: RCFGBuilder took 400.97ms. Allocated memory is still 83.9MB. Free memory was 46.5MB in the beginning and 30.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 05:15:03,376 INFO L158 Benchmark]: CodeCheck took 550.46ms. Allocated memory is still 83.9MB. Free memory was 30.4MB in the beginning and 36.5MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:03,376 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 83.9MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:15:03,382 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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, ConComCheckerStatistics: No data available - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of fgets at line 1554. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] --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 3.52ms. Allocated memory is still 83.9MB. Free memory was 64.5MB in the beginning and 64.4MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1495.23ms. Allocated memory is still 83.9MB. Free memory was 56.8MB in the beginning and 51.1MB in the end (delta: 5.6MB). Peak memory consumption was 58.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.76ms. Allocated memory is still 83.9MB. Free memory was 51.1MB in the beginning and 48.4MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.71ms. Allocated memory is still 83.9MB. Free memory was 48.4MB in the beginning and 46.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 400.97ms. Allocated memory is still 83.9MB. Free memory was 46.5MB in the beginning and 30.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 550.46ms. Allocated memory is still 83.9MB. Free memory was 30.4MB in the beginning and 36.5MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 83.9MB. Free memory is still 36.5MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 05:15:03,406 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc623fbd-4c01-43a8-bb0b-6fce7ba9b2cf/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample