./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_17_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_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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 fac754b3a0bcdcb03991b3c373097e5c624db5de2c17e9fa2d2883764f9dbe5b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:14:18,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:14:18,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 03:14:18,489 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 03:14:18,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 03:14:18,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:14:18,519 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:14:18,519 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:14:18,520 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:14:18,520 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:14:18,520 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:14:18,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:14:18,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 03:14:18,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:14:18,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:14:18,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:14:18,522 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:14:18,522 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 03:14:18,523 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:14:18,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:14:18,523 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:14:18,523 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:14:18,523 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:14:18,523 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:14:18,523 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:14:18,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:14:18,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:14:18,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:14:18,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:14:18,524 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:14:18,525 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 03:14:18,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 03:14:18,525 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_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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 -> fac754b3a0bcdcb03991b3c373097e5c624db5de2c17e9fa2d2883764f9dbe5b [2024-11-25 03:14:18,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:14:18,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:14:18,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:14:18,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:14:18,854 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:14:18,855 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_17_bad.i [2024-11-25 03:14:21,984 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data/67f5fbdab/635394e528c34a228763c2c95cb3682b/FLAG64c318587 [2024-11-25 03:14:22,485 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:14:22,486 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_17_bad.i [2024-11-25 03:14:22,511 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data/67f5fbdab/635394e528c34a228763c2c95cb3682b/FLAG64c318587 [2024-11-25 03:14:22,527 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data/67f5fbdab/635394e528c34a228763c2c95cb3682b [2024-11-25 03:14:22,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:14:22,531 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:14:22,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:14:22,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:14:22,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:14:22,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:14:22" (1/1) ... [2024-11-25 03:14:22,542 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@420a85fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:22, skipping insertion in model container [2024-11-25 03:14:22,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:14:22" (1/1) ... [2024-11-25 03:14:22,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:14:23,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:14:23,518 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:14:23,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:14:23,775 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:14:23,775 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23 WrapperNode [2024-11-25 03:14:23,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:14:23,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:14:23,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:14:23,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:14:23,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,828 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2024-11-25 03:14:23,829 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:14:23,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:14:23,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:14:23,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:14:23,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,841 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,850 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,855 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:14:23,869 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:14:23,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:14:23,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:14:23,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:23" (1/1) ... [2024-11-25 03:14:23,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:14:23,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:14:23,915 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:14:23,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:14:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 03:14:23,946 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 03:14:23,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:14:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:14:23,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:14:23,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 03:14:24,094 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:14:24,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:14:24,245 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-25 03:14:24,245 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:14:24,295 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:14:24,295 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 03:14:24,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:24 BoogieIcfgContainer [2024-11-25 03:14:24,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:14:24,296 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:14:24,296 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:14:24,306 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:14:24,307 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:24" (1/1) ... [2024-11-25 03:14:24,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:14:24,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:24,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2024-11-25 03:14:24,373 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-25 03:14:24,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 03:14:24,378 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:24,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:24,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:24,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:24,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:24,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2024-11-25 03:14:24,618 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-11-25 03:14:24,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 03:14:24,619 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:24,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:24,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2024-11-25 03:14:24,871 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-25 03:14:24,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 03:14:24,872 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:24,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:24,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:24,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2024-11-25 03:14:24,998 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2024-11-25 03:14:24,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-25 03:14:24,999 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:25,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:25,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:25,111 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 03:14:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:25,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2024-11-25 03:14:25,127 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2024-11-25 03:14:25,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:14:25,127 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:25,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 03:14:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:25,144 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:14:25,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:25,246 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:14:25,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:25,288 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2024-11-25 03:14:25,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:14:25 ImpRootNode [2024-11-25 03:14:25,328 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:14:25,329 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:14:25,329 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:14:25,329 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:14:25,330 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:24" (3/4) ... [2024-11-25 03:14:25,332 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 03:14:25,333 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:14:25,336 INFO L158 Benchmark]: Toolchain (without parser) took 2802.60ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 90.6MB in the beginning and 294.3MB in the end (delta: -203.7MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2024-11-25 03:14:25,336 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:25,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1243.18ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 83.2MB in the end (delta: 7.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-25 03:14:25,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.89ms. Allocated memory is still 117.4MB. Free memory was 83.2MB in the beginning and 80.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:25,338 INFO L158 Benchmark]: Boogie Preprocessor took 39.24ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:14:25,338 INFO L158 Benchmark]: RCFGBuilder took 426.89ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 64.2MB in the end (delta: 15.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 03:14:25,338 INFO L158 Benchmark]: CodeCheck took 1031.82ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 64.2MB in the beginning and 294.9MB in the end (delta: -230.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2024-11-25 03:14:25,339 INFO L158 Benchmark]: Witness Printer took 4.35ms. Allocated memory is still 352.3MB. Free memory was 294.9MB in the beginning and 294.3MB in the end (delta: 563.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:25,344 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 72 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 77 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 58 mSDtfsCounter, 77 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 282 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 4 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, 0.4s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 2/2 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of fgets at line 1557. 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); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_sub_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 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, i=0] [L1553] COND TRUE i < 1 [L1556] 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, i=0] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1553] i++ 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, i=1] [L1553] COND FALSE !(i < 1) [L1567] j = 0 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, j=0] [L1567] COND TRUE j < 1 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, j=0] [L1570] 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, j=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 167.8MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1243.18ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 83.2MB in the end (delta: 7.4MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.89ms. Allocated memory is still 117.4MB. Free memory was 83.2MB in the beginning and 80.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.24ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.3MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 426.89ms. Allocated memory is still 117.4MB. Free memory was 79.3MB in the beginning and 64.2MB in the end (delta: 15.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1031.82ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 64.2MB in the beginning and 294.9MB in the end (delta: -230.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 4.35ms. Allocated memory is still 352.3MB. Free memory was 294.9MB in the beginning and 294.3MB in the end (delta: 563.6kB). 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 03:14:25,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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 fac754b3a0bcdcb03991b3c373097e5c624db5de2c17e9fa2d2883764f9dbe5b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 03:14:27,942 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 03:14:28,081 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2024-11-25 03:14:28,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 03:14:28,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 03:14:28,130 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 03:14:28,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 03:14:28,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 03:14:28,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 03:14:28,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 03:14:28,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 03:14:28,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 03:14:28,135 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 03:14:28,135 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 03:14:28,135 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-25 03:14:28,136 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-25 03:14:28,136 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 03:14:28,136 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-25 03:14:28,136 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 03:14:28,136 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 03:14:28,136 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 03:14:28,136 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 03:14:28,136 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 03:14:28,136 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 03:14:28,137 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 03:14:28,137 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:28,137 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-25 03:14:28,137 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 03:14:28,137 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:14:28,137 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 03:14:28,137 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 03:14:28,137 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 03:14:28,138 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-25 03:14:28,138 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:28,138 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-25 03:14:28,138 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_b54359c7-dcd2-4d1d-bc25-b02607a3057f/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 -> fac754b3a0bcdcb03991b3c373097e5c624db5de2c17e9fa2d2883764f9dbe5b [2024-11-25 03:14:28,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 03:14:28,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 03:14:28,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 03:14:28,533 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 03:14:28,534 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 03:14:28,535 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_17_bad.i [2024-11-25 03:14:31,605 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data/d33d39138/cbf66affb1e741f69500f45692bbaa84/FLAGec84e7a96 [2024-11-25 03:14:32,050 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 03:14:32,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_17_bad.i [2024-11-25 03:14:32,092 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data/d33d39138/cbf66affb1e741f69500f45692bbaa84/FLAGec84e7a96 [2024-11-25 03:14:32,191 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/data/d33d39138/cbf66affb1e741f69500f45692bbaa84 [2024-11-25 03:14:32,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 03:14:32,194 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 03:14:32,196 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 03:14:32,196 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 03:14:32,200 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 03:14:32,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:14:32" (1/1) ... [2024-11-25 03:14:32,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f94327f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:32, skipping insertion in model container [2024-11-25 03:14:32,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:14:32" (1/1) ... [2024-11-25 03:14:32,251 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 03:14:33,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:14:33,300 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 03:14:33,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 03:14:33,631 INFO L204 MainTranslator]: Completed translation [2024-11-25 03:14:33,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33 WrapperNode [2024-11-25 03:14:33,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 03:14:33,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 03:14:33,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 03:14:33,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 03:14:33,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,667 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,688 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2024-11-25 03:14:33,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 03:14:33,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 03:14:33,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 03:14:33,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 03:14:33,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,701 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,701 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,723 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,724 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,735 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 03:14:33,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 03:14:33,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 03:14:33,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 03:14:33,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:14:33" (1/1) ... [2024-11-25 03:14:33,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 03:14:33,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 03:14:33,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 03:14:33,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 03:14:33,820 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-25 03:14:33,820 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-25 03:14:33,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-25 03:14:33,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 03:14:33,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 03:14:33,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 03:14:34,025 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 03:14:34,027 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 03:14:34,253 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-25 03:14:34,253 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 03:14:34,324 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 03:14:34,324 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 03:14:34,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:34 BoogieIcfgContainer [2024-11-25 03:14:34,325 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 03:14:34,325 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 03:14:34,325 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 03:14:34,337 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 03:14:34,337 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:34" (1/1) ... [2024-11-25 03:14:34,346 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 03:14:34,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 25 states and 29 transitions. [2024-11-25 03:14:34,411 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-25 03:14:34,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 03:14:34,415 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:34,415 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:34,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:14:34,419 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:14:34,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-25 03:14:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:34,594 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:14:34,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:34,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-25 03:14:34,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:14:34,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:34,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2024-11-25 03:14:34,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:34,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2024-11-25 03:14:34,792 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2024-11-25 03:14:34,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 03:14:34,792 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:34,792 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:34,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:14:34,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:14:34,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-25 03:14:34,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:34,894 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:14:34,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:34,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-25 03:14:34,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:14:34,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:34,930 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2024-11-25 03:14:34,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-25 03:14:34,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:34,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2024-11-25 03:14:34,947 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2024-11-25 03:14:34,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 03:14:34,948 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:34,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:34,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:14:34,952 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:14:34,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-25 03:14:35,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:35,085 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:14:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:35,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-25 03:14:35,105 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:14:35,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:35,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-25 03:14:35,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:35,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2024-11-25 03:14:35,118 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2024-11-25 03:14:35,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 03:14:35,118 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:35,118 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:35,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:14:35,121 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:14:35,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-25 03:14:35,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:35,225 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:14:35,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:35,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-25 03:14:35,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:14:35,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:35,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2024-11-25 03:14:35,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:35,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2024-11-25 03:14:35,275 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2024-11-25 03:14:35,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-25 03:14:35,275 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:35,276 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:35,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:14:35,278 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:14:35,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-25 03:14:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:35,394 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:14:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:35,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-25 03:14:35,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:14:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 03:14:35,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2024-11-25 03:14:35,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:35,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2024-11-25 03:14:35,605 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2024-11-25 03:14:35,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:14:35,606 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:35,607 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:35,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:14:35,609 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:14:35,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-25 03:14:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:35,734 ERROR L568 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-25 03:14:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 03:14:35,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-25 03:14:35,766 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-25 03:14:35,800 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 03:14:35,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-25 03:14:35,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 03:14:35,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2024-11-25 03:14:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2024-11-25 03:14:35,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-25 03:14:35,831 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 03:14:35,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-25 03:14:35,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 [2024-11-25 03:14:35,834 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-25 03:14:35,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-25 03:14:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:35,969 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:14:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:36,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:36,076 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 03:14:36,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 03:14:36,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2024-11-25 03:14:36,110 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-11-25 03:14:36,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 03:14:36 ImpRootNode [2024-11-25 03:14:36,151 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 03:14:36,152 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 03:14:36,152 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 03:14:36,154 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 03:14:36,154 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:14:34" (3/4) ... [2024-11-25 03:14:36,157 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-25 03:14:36,158 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 03:14:36,160 INFO L158 Benchmark]: Toolchain (without parser) took 3965.48ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 77.1MB in the end (delta: 13.0MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2024-11-25 03:14:36,160 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:36,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1435.91ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 78.5MB in the end (delta: 11.7MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2024-11-25 03:14:36,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.94ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.3MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:36,163 INFO L158 Benchmark]: Boogie Preprocessor took 56.15ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 73.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:36,163 INFO L158 Benchmark]: RCFGBuilder took 578.88ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 56.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 03:14:36,164 INFO L158 Benchmark]: CodeCheck took 1826.24ms. Allocated memory is still 117.4MB. Free memory was 56.3MB in the beginning and 77.1MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:36,164 INFO L158 Benchmark]: Witness Printer took 6.92ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 77.1MB in the end (delta: 9.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 03:14:36,166 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, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 214 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 129 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 83 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 225 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 2/2 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559, overapproximation of fgets at line 1557. 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); [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_sub_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 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, i=0] [L1553] COND TRUE i < 1 [L1556] 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, i=0] [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1553] i++ 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, i=1] [L1553] COND FALSE !(i < 1) [L1567] j = 0 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, j=0] [L1567] COND TRUE j < 1 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, j=0] [L1570] 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, j=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1435.91ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 78.5MB in the end (delta: 11.7MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.94ms. Allocated memory is still 117.4MB. Free memory was 78.5MB in the beginning and 75.3MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.15ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 73.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 578.88ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 56.3MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1826.24ms. Allocated memory is still 117.4MB. Free memory was 56.3MB in the beginning and 77.1MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.92ms. Allocated memory is still 117.4MB. Free memory was 77.1MB in the beginning and 77.1MB in the end (delta: 9.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-25 03:14:36,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b54359c7-dcd2-4d1d-bc25-b02607a3057f/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample