./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_12_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_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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 9669eaa504993e58400e39aa486d7137654633921a41df1436ba4312e9969738 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:01:38,828 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:01:38,890 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:01:38,895 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:01:38,895 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:01:38,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:01:38,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:01:38,940 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:01:38,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:01:38,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:01:38,941 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:01:38,941 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:01:38,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:01:38,941 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:01:38,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:01:38,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:01:38,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:01:38,942 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:01:38,942 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:01:38,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:01:38,942 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:01:38,942 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:01:38,942 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:01:38,942 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:01:38,942 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:01:38,942 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:01:38,942 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:01:38,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:01:38,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:01:38,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:01:38,946 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:01:38,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:01:38,946 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_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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 -> 9669eaa504993e58400e39aa486d7137654633921a41df1436ba4312e9969738 [2024-11-25 02:01:39,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:01:39,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:01:39,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:01:39,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:01:39,259 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:01:39,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_12_bad.i [2024-11-25 02:01:42,159 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data/973c5ef47/cb32f47c494c4c9b975fd7b0cf2afb4e/FLAG61a56b21f [2024-11-25 02:01:42,538 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:01:42,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_12_bad.i [2024-11-25 02:01:42,558 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data/973c5ef47/cb32f47c494c4c9b975fd7b0cf2afb4e/FLAG61a56b21f [2024-11-25 02:01:42,573 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data/973c5ef47/cb32f47c494c4c9b975fd7b0cf2afb4e [2024-11-25 02:01:42,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:01:42,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:01:42,579 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:01:42,579 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:01:42,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:01:42,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:01:42" (1/1) ... [2024-11-25 02:01:42,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33d249ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:42, skipping insertion in model container [2024-11-25 02:01:42,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:01:42" (1/1) ... [2024-11-25 02:01:42,646 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:01:43,658 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:01:43,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:01:43,814 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:01:43,957 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:01:43,957 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43 WrapperNode [2024-11-25 02:01:43,957 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:01:43,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:01:43,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:01:43,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:01:43,964 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:43,982 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,001 INFO L138 Inliner]: procedures = 498, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2024-11-25 02:01:44,002 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:01:44,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:01:44,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:01:44,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:01:44,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,012 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,018 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,019 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:01:44,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:01:44,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:01:44,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:01:44,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:43" (1/1) ... [2024-11-25 02:01:44,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:01:44,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:01:44,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:01:44,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:01:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-11-25 02:01:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-11-25 02:01:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2024-11-25 02:01:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2024-11-25 02:01:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:01:44,089 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:01:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:01:44,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:01:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:01:44,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 02:01:44,248 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:01:44,250 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:01:44,460 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-25 02:01:44,460 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:01:44,513 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:01:44,513 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:01:44,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:01:44 BoogieIcfgContainer [2024-11-25 02:01:44,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:01:44,514 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:01:44,514 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:01:44,524 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:01:44,524 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:01:44" (1/1) ... [2024-11-25 02:01:44,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:01:44,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:01:44,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 44 transitions. [2024-11-25 02:01:44,596 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2024-11-25 02:01:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-25 02:01:44,600 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:01:44,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:01:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:44,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:01:44,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:01:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 40 states and 51 transitions. [2024-11-25 02:01:44,980 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2024-11-25 02:01:44,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 02:01:44,981 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:01:44,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:01:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:45,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:01:45,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:01:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 59 transitions. [2024-11-25 02:01:45,239 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 59 transitions. [2024-11-25 02:01:45,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 02:01:45,240 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:01:45,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:01:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:45,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:01:45,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:01:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 47 states and 61 transitions. [2024-11-25 02:01:45,432 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2024-11-25 02:01:45,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-25 02:01:45,433 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:01:45,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:01:45,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:01:45,494 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:01:45,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:01:45,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:01:45,616 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:01:45,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:01:45,658 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-25 02:01:45,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:01:45 ImpRootNode [2024-11-25 02:01:45,704 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:01:45,705 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:01:45,705 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:01:45,705 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:01:45,705 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:01:44" (3/4) ... [2024-11-25 02:01:45,708 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:01:45,709 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:01:45,712 INFO L158 Benchmark]: Toolchain (without parser) took 3132.52ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 67.3MB in the end (delta: 21.9MB). Peak memory consumption was 25.3MB. Max. memory is 16.1GB. [2024-11-25 02:01:45,712 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:01:45,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1379.30ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 81.4MB in the end (delta: 7.8MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. [2024-11-25 02:01:45,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.72ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 78.6MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 02:01:45,713 INFO L158 Benchmark]: Boogie Preprocessor took 22.89ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 77.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:01:45,713 INFO L158 Benchmark]: RCFGBuilder took 487.46ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 62.4MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:01:45,714 INFO L158 Benchmark]: CodeCheck took 1189.77ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 68.1MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:01:45,714 INFO L158 Benchmark]: Witness Printer took 4.26ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 67.3MB in the end (delta: 764.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:01:45,720 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 4 procedures, 36 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 127 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 127 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 41 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 61 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 86 mSDtfsCounter, 61 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 341 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 6/6 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1593] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={4:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1593] 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] [L1594] CALL CWE191_Integer_Underflow__int_fgets_sub_12_bad() [L1550] int data; [L1551] data = 0 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] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() 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] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() 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] [L1570] COND TRUE globalReturnsTrueOrFalse() [L1573] data - 1 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 0.26ms. Allocated memory is still 117.4MB. Free memory is still 73.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1379.30ms. Allocated memory is still 117.4MB. Free memory was 89.2MB in the beginning and 81.4MB in the end (delta: 7.8MB). Peak memory consumption was 66.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.72ms. Allocated memory is still 117.4MB. Free memory was 81.4MB in the beginning and 78.6MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.89ms. Allocated memory is still 117.4MB. Free memory was 78.6MB in the beginning and 77.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 487.46ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 62.4MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1189.77ms. Allocated memory is still 117.4MB. Free memory was 62.4MB in the beginning and 68.1MB in the end (delta: -5.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.26ms. Allocated memory is still 117.4MB. Free memory was 68.1MB in the beginning and 67.3MB in the end (delta: 764.3kB). 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 02:01:45,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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 9669eaa504993e58400e39aa486d7137654633921a41df1436ba4312e9969738 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 02:01:48,328 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:01:48,409 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 02:01:48,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:01:48,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:01:48,469 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:01:48,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:01:48,469 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:01:48,470 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:01:48,470 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:01:48,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:01:48,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:01:48,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:01:48,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:01:48,470 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 02:01:48,470 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 02:01:48,471 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:01:48,471 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 02:01:48,471 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:01:48,471 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:01:48,471 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:01:48,471 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:01:48,471 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:01:48,471 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:01:48,471 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:01:48,472 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:01:48,472 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 02:01:48,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:01:48,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:01:48,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:01:48,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:01:48,472 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:01:48,472 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 02:01:48,472 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 02:01:48,476 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 02:01:48,476 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_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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 -> 9669eaa504993e58400e39aa486d7137654633921a41df1436ba4312e9969738 [2024-11-25 02:01:48,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:01:48,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:01:48,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:01:48,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:01:48,820 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:01:48,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_12_bad.i [2024-11-25 02:01:51,780 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data/0009d59f9/027483ab92b74c908cfd2925e57cca5e/FLAG2b5cad1f4 [2024-11-25 02:01:52,261 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:01:52,265 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_12_bad.i [2024-11-25 02:01:52,300 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data/0009d59f9/027483ab92b74c908cfd2925e57cca5e/FLAG2b5cad1f4 [2024-11-25 02:01:52,320 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/data/0009d59f9/027483ab92b74c908cfd2925e57cca5e [2024-11-25 02:01:52,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:01:52,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:01:52,328 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:01:52,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:01:52,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:01:52,335 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:01:52" (1/1) ... [2024-11-25 02:01:52,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f2353d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:52, skipping insertion in model container [2024-11-25 02:01:52,338 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:01:52" (1/1) ... [2024-11-25 02:01:52,401 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:01:53,334 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:01:53,359 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:01:53,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:01:53,591 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:01:53,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53 WrapperNode [2024-11-25 02:01:53,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:01:53,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:01:53,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:01:53,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:01:53,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,658 INFO L138 Inliner]: procedures = 503, calls = 32, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2024-11-25 02:01:53,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:01:53,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:01:53,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:01:53,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:01:53,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,669 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,681 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,682 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,686 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,687 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,690 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:01:53,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:01:53,694 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:01:53,694 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:01:53,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:01:53" (1/1) ... [2024-11-25 02:01:53,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:01:53,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:01:53,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:01:53,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:01:53,766 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-11-25 02:01:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-11-25 02:01:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2024-11-25 02:01:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2024-11-25 02:01:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 02:01:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 02:01:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 02:01:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 02:01:53,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:01:53,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:01:53,912 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:01:53,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:01:54,085 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-25 02:01:54,085 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:01:54,130 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:01:54,130 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-25 02:01:54,131 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:01:54 BoogieIcfgContainer [2024-11-25 02:01:54,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:01:54,132 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:01:54,132 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:01:54,143 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:01:54,143 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:01:54" (1/1) ... [2024-11-25 02:01:54,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:01:54,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:01:54,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2024-11-25 02:01:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-25 02:01:54,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-25 02:01:54,230 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:01:54,231 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:01:54,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:01:54,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:01:54,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 02:01:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:54,407 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:01:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:54,440 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 02:01:54,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:01:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:01:54,500 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2024-11-25 02:01:54,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-25 02:01:54,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:01:54,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2024-11-25 02:01:54,557 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2024-11-25 02:01:54,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:01:54,558 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:01:54,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:01:54,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:01:54,560 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:01:54,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 02:01:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:54,665 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:01:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:54,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-25 02:01:54,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:01:54,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:01:54,695 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2024-11-25 02:01:54,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-25 02:01:54,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:01:54,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 36 states and 47 transitions. [2024-11-25 02:01:54,707 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2024-11-25 02:01:54,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-25 02:01:54,707 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:01:54,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:01:54,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:01:54,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:01:54,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-25 02:01:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:54,847 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 02:01:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:01:54,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 02:01:54,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 02:01:54,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-25 02:01:54,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-25 02:01:54,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:01:54,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 38 states and 49 transitions. [2024-11-25 02:01:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2024-11-25 02:01:54,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-25 02:01:54,946 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:01:54,946 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 02:01:54,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 02:01:54,949 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 02:01:54,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-25 02:01:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:01:55,138 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:01:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:01:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:01:55,307 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:01:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:01:55,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-25 02:01:55,352 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2024-11-25 02:01:55,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:01:55 ImpRootNode [2024-11-25 02:01:55,392 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:01:55,393 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:01:55,393 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:01:55,393 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:01:55,394 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:01:54" (3/4) ... [2024-11-25 02:01:55,397 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 02:01:55,398 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:01:55,399 INFO L158 Benchmark]: Toolchain (without parser) took 3072.48ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 56.9MB in the beginning and 26.9MB in the end (delta: 30.0MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2024-11-25 02:01:55,401 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 51.6MB in the end (delta: 107.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:01:55,402 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1263.57ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 56.8MB in the beginning and 54.5MB in the end (delta: 2.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-11-25 02:01:55,402 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.90ms. Allocated memory is still 100.7MB. Free memory was 54.5MB in the beginning and 51.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:01:55,402 INFO L158 Benchmark]: Boogie Preprocessor took 30.92ms. Allocated memory is still 100.7MB. Free memory was 51.6MB in the beginning and 50.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:01:55,403 INFO L158 Benchmark]: RCFGBuilder took 436.85ms. Allocated memory is still 100.7MB. Free memory was 50.2MB in the beginning and 32.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:01:55,403 INFO L158 Benchmark]: CodeCheck took 1260.53ms. Allocated memory is still 100.7MB. Free memory was 32.8MB in the beginning and 26.9MB in the end (delta: 5.9MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2024-11-25 02:01:55,403 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 100.7MB. Free memory was 26.9MB in the beginning and 26.9MB in the end (delta: 15.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:01:55,406 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 4 procedures, 34 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 113 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 71 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 334 GetRequests, 332 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, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 152 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 6/6 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of fgets at line 1556. 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); [L1593] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={4:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1593] 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] [L1594] CALL CWE191_Integer_Underflow__int_fgets_sub_12_bad() [L1550] int data; [L1551] data = 0 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] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() 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] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() 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] [L1570] COND TRUE globalReturnsTrueOrFalse() [L1573] data - 1 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 0.40ms. Allocated memory is still 83.9MB. Free memory was 51.7MB in the beginning and 51.6MB in the end (delta: 107.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1263.57ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 56.8MB in the beginning and 54.5MB in the end (delta: 2.3MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.90ms. Allocated memory is still 100.7MB. Free memory was 54.5MB in the beginning and 51.6MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.92ms. Allocated memory is still 100.7MB. Free memory was 51.6MB in the beginning and 50.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 436.85ms. Allocated memory is still 100.7MB. Free memory was 50.2MB in the beginning and 32.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1260.53ms. Allocated memory is still 100.7MB. Free memory was 32.8MB in the beginning and 26.9MB in the end (delta: 5.9MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 100.7MB. Free memory was 26.9MB in the beginning and 26.9MB in the end (delta: 15.0kB). 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 02:01:55,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded0874d-2d7e-457e-9dbf-39a6ef5d5324/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