./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9 --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 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:45:23,632 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:45:23,698 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 03:45:23,703 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:45:23,703 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:45:23,727 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:45:23,727 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:45:23,728 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:45:23,729 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:45:23,729 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:45:23,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:45:23,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:45:23,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:45:23,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:45:23,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:45:23,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:45:23,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:45:23,733 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:45:23,734 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:45:23,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:45:23,735 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:45:23,736 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:45:23,736 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:45:23,736 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:45:23,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:45:23,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:45:23,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:45:23,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:45:23,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:45:23,739 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:45:23,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:45:23,740 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:45:23,740 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa [2023-12-03 03:45:23,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:45:24,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:45:24,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:45:24,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:45:24,007 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:45:24,008 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2023-12-03 03:45:26,691 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:45:27,000 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:45:27,001 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2023-12-03 03:45:27,026 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/data/f53f21cac/186ab00a149446459eb19a503abc6f95/FLAGad7394fbe [2023-12-03 03:45:27,041 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/data/f53f21cac/186ab00a149446459eb19a503abc6f95 [2023-12-03 03:45:27,044 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:45:27,045 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:45:27,047 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:45:27,047 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:45:27,052 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:45:27,053 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:45:27" (1/1) ... [2023-12-03 03:45:27,054 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd1479c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:27, skipping insertion in model container [2023-12-03 03:45:27,055 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:45:27" (1/1) ... [2023-12-03 03:45:27,112 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:45:27,943 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:45:27,952 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:45:28,035 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:45:28,200 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:28,200 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:28,201 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:28,201 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:28,201 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:28,209 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:45:28,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28 WrapperNode [2023-12-03 03:45:28,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:45:28,211 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:45:28,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:45:28,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:45:28,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,268 INFO L138 Inliner]: procedures = 499, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2023-12-03 03:45:28,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:45:28,269 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:45:28,269 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:45:28,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:45:28,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,282 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,283 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,293 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,295 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,297 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:45:28,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:45:28,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:45:28,301 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:45:28,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:45:28,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:45:28,339 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:45:28,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:45:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:45:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:45:28,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:45:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:45:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 03:45:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:45:28,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:45:28,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:45:28,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:45:28,376 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:45:28,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:45:28,549 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:45:28,551 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:45:28,659 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:45:28,695 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:45:28,695 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 03:45:28,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:45:28 BoogieIcfgContainer [2023-12-03 03:45:28,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:45:28,699 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:45:28,699 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:45:28,709 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:45:28,709 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:45:28" (1/1) ... [2023-12-03 03:45:28,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:45:28,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:45:28,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-12-03 03:45:28,776 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-03 03:45:28,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:45:28,780 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:45:28,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:45:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:45:28,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:45:28,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:45:28,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2023-12-03 03:45:28,982 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-12-03 03:45:28,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:45:28,982 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:45:28,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:45:29,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:45:29,029 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:45:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:45:29,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:45:29,127 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:45:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:45:29,162 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 03:45:29,190 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-12-03 03:45:29,194 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:45:29 ImpRootNode [2023-12-03 03:45:29,195 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:45:29,195 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:45:29,195 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:45:29,195 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:45:29,196 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:45:28" (3/4) ... [2023-12-03 03:45:29,197 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:45:29,198 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:45:29,199 INFO L158 Benchmark]: Toolchain (without parser) took 2153.42ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 86.6MB in the beginning and 149.4MB in the end (delta: -62.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:45:29,199 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:45:29,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1163.23ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 86.0MB in the beginning and 124.0MB in the end (delta: -38.0MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. [2023-12-03 03:45:29,200 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.98ms. Allocated memory is still 184.5MB. Free memory was 124.0MB in the beginning and 121.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:45:29,201 INFO L158 Benchmark]: Boogie Preprocessor took 31.21ms. Allocated memory is still 184.5MB. Free memory was 121.0MB in the beginning and 119.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:45:29,201 INFO L158 Benchmark]: RCFGBuilder took 396.57ms. Allocated memory is still 184.5MB. Free memory was 119.9MB in the beginning and 104.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 03:45:29,202 INFO L158 Benchmark]: CodeCheck took 496.20ms. Allocated memory is still 184.5MB. Free memory was 104.2MB in the beginning and 149.6MB in the end (delta: -45.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-03 03:45:29,202 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 184.5MB. Free memory was 149.6MB in the beginning and 149.4MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:45:29,205 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 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 1558, overapproximation of large string literal at line 1580. 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); [L1580] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={18:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_predec_16_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] COND TRUE 1 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] COND TRUE 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] [L1570] --data 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1163.23ms. Allocated memory was 132.1MB in the beginning and 184.5MB in the end (delta: 52.4MB). Free memory was 86.0MB in the beginning and 124.0MB in the end (delta: -38.0MB). Peak memory consumption was 47.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.98ms. Allocated memory is still 184.5MB. Free memory was 124.0MB in the beginning and 121.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.21ms. Allocated memory is still 184.5MB. Free memory was 121.0MB in the beginning and 119.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.57ms. Allocated memory is still 184.5MB. Free memory was 119.9MB in the beginning and 104.2MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 496.20ms. Allocated memory is still 184.5MB. Free memory was 104.2MB in the beginning and 149.6MB in the end (delta: -45.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 184.5MB. Free memory was 149.6MB in the beginning and 149.4MB in the end (delta: 167.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet103 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 03:45:29,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9 --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 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:45:31,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:45:31,285 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 03:45:31,316 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:45:31,317 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:45:31,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:45:31,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:45:31,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:45:31,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:45:31,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:45:31,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:45:31,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:45:31,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:45:31,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:45:31,322 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 03:45:31,323 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 03:45:31,323 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:45:31,324 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 03:45:31,324 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:45:31,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:45:31,326 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:45:31,326 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:45:31,327 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:45:31,327 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:45:31,328 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:45:31,328 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 03:45:31,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:45:31,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:45:31,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:45:31,330 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:45:31,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:45:31,331 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 03:45:31,331 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 03:45:31,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:45:31,332 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 03:45:31,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 03:45:31,332 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa [2023-12-03 03:45:31,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:45:31,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:45:31,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:45:31,656 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:45:31,656 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:45:31,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2023-12-03 03:45:34,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:45:34,744 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:45:34,744 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2023-12-03 03:45:34,769 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/data/4225a8812/78b15daa61ee4131907b42703c964f36/FLAG502611180 [2023-12-03 03:45:34,784 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/data/4225a8812/78b15daa61ee4131907b42703c964f36 [2023-12-03 03:45:34,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:45:34,789 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:45:34,790 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:45:34,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:45:34,795 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:45:34,796 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:45:34" (1/1) ... [2023-12-03 03:45:34,797 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@87a6f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:34, skipping insertion in model container [2023-12-03 03:45:34,797 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:45:34" (1/1) ... [2023-12-03 03:45:34,857 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:45:35,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:45:35,783 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:45:35,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:45:36,005 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:36,005 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:36,005 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:36,005 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:36,006 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 03:45:36,011 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:45:36,011 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36 WrapperNode [2023-12-03 03:45:36,012 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:45:36,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:45:36,013 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:45:36,013 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:45:36,018 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,070 INFO L138 Inliner]: procedures = 504, calls = 63, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2023-12-03 03:45:36,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:45:36,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:45:36,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:45:36,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:45:36,079 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,108 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:45:36,109 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:45:36,109 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:45:36,109 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:45:36,110 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:45:36,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:45:36,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:45:36,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:45:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 03:45:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 03:45:36,175 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 03:45:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:45:36,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 03:45:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:45:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:45:36,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:45:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:45:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 03:45:36,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 03:45:36,323 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:45:36,326 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:45:36,463 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:45:36,504 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:45:36,505 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 03:45:36,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:45:36 BoogieIcfgContainer [2023-12-03 03:45:36,506 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:45:36,507 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:45:36,507 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:45:36,518 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:45:36,518 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:45:36" (1/1) ... [2023-12-03 03:45:36,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:45:36,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:45:36,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-12-03 03:45:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-12-03 03:45:36,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:45:36,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:45:36,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:45:36,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:45:36,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:45:36,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 03:45:36,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:45:36,742 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 03:45:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:45:36,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 03:45:36,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:45:36,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:45:36,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 03:45:36,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:45:36,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2023-12-03 03:45:36,821 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-12-03 03:45:36,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:45:36,821 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:45:36,821 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 03:45:36,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 03:45:36,823 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 03:45:36,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 03:45:36,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:45:36,980 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:45:37,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:45:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:45:37,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:45:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:45:37,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 03:45:37,232 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-12-03 03:45:37,258 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet101 [2023-12-03 03:45:37,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:45:37 ImpRootNode [2023-12-03 03:45:37,264 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:45:37,265 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:45:37,265 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:45:37,265 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:45:37,265 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:45:36" (3/4) ... [2023-12-03 03:45:37,267 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 03:45:37,268 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:45:37,270 INFO L158 Benchmark]: Toolchain (without parser) took 2480.71ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 63.4MB in the beginning and 75.4MB in the end (delta: -12.0MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-12-03 03:45:37,270 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:45:37,271 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1221.85ms. Allocated memory is still 90.2MB. Free memory was 63.1MB in the beginning and 48.8MB in the end (delta: 14.3MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2023-12-03 03:45:37,271 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.66ms. Allocated memory is still 90.2MB. Free memory was 48.8MB in the beginning and 45.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:45:37,272 INFO L158 Benchmark]: Boogie Preprocessor took 36.48ms. Allocated memory is still 90.2MB. Free memory was 45.8MB in the beginning and 43.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:45:37,273 INFO L158 Benchmark]: RCFGBuilder took 397.54ms. Allocated memory is still 90.2MB. Free memory was 43.7MB in the beginning and 54.1MB in the end (delta: -10.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2023-12-03 03:45:37,273 INFO L158 Benchmark]: CodeCheck took 756.72ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 76.1MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:45:37,274 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 109.1MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:45:37,277 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 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 1558, overapproximation of large string literal at line 1580. 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); [L1580] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_predec_16_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] COND TRUE 1 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] COND TRUE 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] [L1570] --data 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] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 62.9MB. Free memory was 39.5MB in the beginning and 39.4MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1221.85ms. Allocated memory is still 90.2MB. Free memory was 63.1MB in the beginning and 48.8MB in the end (delta: 14.3MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.66ms. Allocated memory is still 90.2MB. Free memory was 48.8MB in the beginning and 45.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.48ms. Allocated memory is still 90.2MB. Free memory was 45.8MB in the beginning and 43.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.54ms. Allocated memory is still 90.2MB. Free memory was 43.7MB in the beginning and 54.1MB in the end (delta: -10.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. * CodeCheck took 756.72ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 76.1MB in the end (delta: -21.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 109.1MB. Free memory is still 75.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet101 - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 03:45:37,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c079beb-961e-4fc2-a6a8-8b06f78e12a2/bin/ukojak-verify-Qdu7aM0XO9/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