./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC --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 c7c1e4c64ae68198dc7f28c4d93a61f32362d4adce77ce11970daedd3e31b298 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:06:08,088 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:06:08,178 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:06:08,185 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:06:08,186 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:06:08,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:06:08,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:06:08,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:06:08,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:06:08,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:06:08,226 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:06:08,227 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:06:08,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:06:08,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:06:08,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:06:08,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:06:08,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:06:08,231 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:06:08,232 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:06:08,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:06:08,234 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:06:08,235 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:06:08,235 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:06:08,236 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:06:08,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:06:08,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:08,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:06:08,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:06:08,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:06:08,241 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:06:08,242 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:06:08,242 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:06:08,243 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_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7c1e4c64ae68198dc7f28c4d93a61f32362d4adce77ce11970daedd3e31b298 [2023-11-23 20:06:08,606 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:06:08,649 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:06:08,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:06:08,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:06:08,655 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:06:08,657 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i [2023-11-23 20:06:12,319 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:06:12,815 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:06:12,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i [2023-11-23 20:06:12,860 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/data/4966db8c6/393f8c60663c4b4286f41d8baa674894/FLAGc7872bbd3 [2023-11-23 20:06:12,887 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/data/4966db8c6/393f8c60663c4b4286f41d8baa674894 [2023-11-23 20:06:12,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:06:12,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:06:12,904 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:12,904 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:06:12,911 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:06:12,912 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:06:12" (1/1) ... [2023-11-23 20:06:12,916 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1c3ded and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:12, skipping insertion in model container [2023-11-23 20:06:12,917 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:06:12" (1/1) ... [2023-11-23 20:06:13,015 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:06:13,478 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:14,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:14,148 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:06:14,173 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:14,267 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:14,402 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:14,402 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:14,402 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:14,402 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:14,403 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:14,403 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:14,410 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:06:14,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14 WrapperNode [2023-11-23 20:06:14,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:14,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:14,412 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:06:14,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:06:14,420 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,491 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-23 20:06:14,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:14,492 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:06:14,492 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:06:14,493 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:06:14,512 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,517 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,517 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,525 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,533 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:06:14,542 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:06:14,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:06:14,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:06:14,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:14" (1/1) ... [2023-11-23 20:06:14,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:14,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:06:14,600 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:06:14,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:06:14,645 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:06:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:06:14,646 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:06:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:06:14,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:06:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:06:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:06:14,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:06:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:06:14,647 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:06:14,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:06:14,825 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:06:14,827 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:06:14,960 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:06:15,001 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:06:15,001 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:06:15,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:15 BoogieIcfgContainer [2023-11-23 20:06:15,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:06:15,004 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:06:15,004 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:06:15,015 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:06:15,016 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:15" (1/1) ... [2023-11-23 20:06:15,026 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:06:15,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:15,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-23 20:06:15,083 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-23 20:06:15,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:06:15,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:15,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:06:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:15,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:06:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:15,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 23 transitions. [2023-11-23 20:06:15,647 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-23 20:06:15,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:06:15,651 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:15,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:06:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:15,734 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:06:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:15,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:06:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:15,927 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:06:15,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:06:15 ImpRootNode [2023-11-23 20:06:15,977 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:06:15,979 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:06:15,979 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:06:15,979 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:06:15,980 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:15" (3/4) ... [2023-11-23 20:06:15,987 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:06:15,988 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:06:15,990 INFO L158 Benchmark]: Toolchain (without parser) took 3089.92ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 75.2MB in the beginning and 100.0MB in the end (delta: -24.7MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2023-11-23 20:06:15,990 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 123.7MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:15,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1507.45ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 74.9MB in the beginning and 79.8MB in the end (delta: -4.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2023-11-23 20:06:15,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.42ms. Allocated memory is still 157.3MB. Free memory was 79.8MB in the beginning and 76.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:06:15,994 INFO L158 Benchmark]: Boogie Preprocessor took 46.97ms. Allocated memory is still 157.3MB. Free memory was 76.7MB in the beginning and 75.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:15,995 INFO L158 Benchmark]: RCFGBuilder took 460.81ms. Allocated memory is still 157.3MB. Free memory was 75.6MB in the beginning and 60.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 20:06:16,002 INFO L158 Benchmark]: CodeCheck took 973.57ms. Allocated memory is still 157.3MB. Free memory was 60.9MB in the beginning and 100.0MB in the end (delta: -39.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:16,003 INFO L158 Benchmark]: Witness Printer took 9.54ms. Allocated memory is still 157.3MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:16,011 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 17 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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. 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, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={18:27}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_09_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 \read(GLOBAL_CONST_TRUE) [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=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(GLOBAL_CONST_TRUE) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, 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 0.41ms. Allocated memory is still 123.7MB. Free memory is still 70.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1507.45ms. Allocated memory was 123.7MB in the beginning and 157.3MB in the end (delta: 33.6MB). Free memory was 74.9MB in the beginning and 79.8MB in the end (delta: -4.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.42ms. Allocated memory is still 157.3MB. Free memory was 79.8MB in the beginning and 76.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.97ms. Allocated memory is still 157.3MB. Free memory was 76.7MB in the beginning and 75.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 460.81ms. Allocated memory is still 157.3MB. Free memory was 75.6MB in the beginning and 60.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 973.57ms. Allocated memory is still 157.3MB. Free memory was 60.9MB in the beginning and 100.0MB in the end (delta: -39.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.54ms. Allocated memory is still 157.3MB. Free memory is still 100.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:06:16,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC --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 c7c1e4c64ae68198dc7f28c4d93a61f32362d4adce77ce11970daedd3e31b298 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:06:19,012 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:06:19,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-23 20:06:19,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:06:19,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:06:19,180 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:06:19,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:06:19,181 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:06:19,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:06:19,182 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:06:19,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:06:19,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:06:19,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:06:19,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:06:19,185 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:06:19,186 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:06:19,187 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:06:19,187 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:06:19,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:06:19,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:06:19,189 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:06:19,190 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:06:19,190 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:06:19,191 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:06:19,191 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:06:19,192 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-23 20:06:19,192 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:06:19,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:19,193 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:06:19,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:06:19,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:06:19,195 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:06:19,195 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:06:19,195 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:06:19,196 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-23 20:06:19,196 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:06:19,197 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_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7c1e4c64ae68198dc7f28c4d93a61f32362d4adce77ce11970daedd3e31b298 [2023-11-23 20:06:19,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:06:19,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:06:19,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:06:19,661 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:06:19,663 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:06:19,665 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i [2023-11-23 20:06:23,299 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:06:23,869 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:06:23,870 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i [2023-11-23 20:06:23,917 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/data/2f58b4ff9/61c780a134084069ac2ebeb5a0863e16/FLAG17f328019 [2023-11-23 20:06:23,937 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/data/2f58b4ff9/61c780a134084069ac2ebeb5a0863e16 [2023-11-23 20:06:23,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:06:23,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:06:23,953 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:23,954 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:06:23,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:06:23,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:06:23" (1/1) ... [2023-11-23 20:06:23,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fdd599a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:23, skipping insertion in model container [2023-11-23 20:06:23,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:06:23" (1/1) ... [2023-11-23 20:06:24,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:06:24,674 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:25,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:25,791 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:06:25,826 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 20:06:25,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:06:26,172 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:26,172 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:26,173 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:26,173 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:26,173 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:26,173 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:06:26,184 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:06:26,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26 WrapperNode [2023-11-23 20:06:26,185 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:06:26,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:26,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:06:26,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:06:26,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,312 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-23 20:06:26,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:06:26,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:06:26,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:06:26,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:06:26,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,345 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,346 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,374 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,385 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,395 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,401 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:06:26,412 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:06:26,412 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:06:26,412 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:06:26,413 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:06:26" (1/1) ... [2023-11-23 20:06:26,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:06:26,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:06:26,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:06:26,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:06:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-23 20:06:26,521 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-23 20:06:26,522 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-23 20:06:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:06:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:06:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:06:26,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:06:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:06:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:06:26,524 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-23 20:06:26,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-23 20:06:26,793 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:06:26,796 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:06:26,995 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:06:27,048 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:06:27,048 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 20:06:27,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:27 BoogieIcfgContainer [2023-11-23 20:06:27,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:06:27,064 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:06:27,064 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:06:27,076 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:06:27,077 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:27" (1/1) ... [2023-11-23 20:06:27,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:06:27,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:27,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-23 20:06:27,186 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-23 20:06:27,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-23 20:06:27,196 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:27,197 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:06:27,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:06:27,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:06:27,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-23 20:06:27,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:27,414 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-23 20:06:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:06:27,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 20:06:27,474 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:06:27,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:06:27,525 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:06:27,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:06:27,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:06:27,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-23 20:06:27,587 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-23 20:06:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:06:27,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:06:27,589 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 20:06:27,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 [2023-11-23 20:06:27,591 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 20:06:27,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-23 20:06:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:27,839 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:06:27,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:28,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:06:28,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:06:28,180 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-23 20:06:28,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:06:28,188 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-23 20:06:28,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:06:28 ImpRootNode [2023-11-23 20:06:28,243 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:06:28,244 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:06:28,244 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:06:28,244 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:06:28,245 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:06:27" (3/4) ... [2023-11-23 20:06:28,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:06:28,248 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:06:28,250 INFO L158 Benchmark]: Toolchain (without parser) took 4300.93ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 56.0MB in the beginning and 56.8MB in the end (delta: -817.8kB). Peak memory consumption was 40.2MB. Max. memory is 16.1GB. [2023-11-23 20:06:28,251 INFO L158 Benchmark]: CDTParser took 0.72ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 59.4MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:28,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2233.16ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 55.8MB in the beginning and 70.9MB in the end (delta: -15.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-23 20:06:28,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 126.70ms. Allocated memory is still 123.7MB. Free memory was 70.9MB in the beginning and 68.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:28,260 INFO L158 Benchmark]: Boogie Preprocessor took 95.39ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 66.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:06:28,261 INFO L158 Benchmark]: RCFGBuilder took 651.53ms. Allocated memory is still 123.7MB. Free memory was 66.1MB in the beginning and 83.4MB in the end (delta: -17.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-23 20:06:28,263 INFO L158 Benchmark]: CodeCheck took 1178.96ms. Allocated memory is still 123.7MB. Free memory was 83.4MB in the beginning and 56.8MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 20:06:28,263 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 123.7MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:06:28,275 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 2 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. 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, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_09_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 \read(GLOBAL_CONST_TRUE) [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] [L1566] COND TRUE \read(GLOBAL_CONST_TRUE) 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] [L1568] COND TRUE data < 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] [L1570] data * 2 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 0.72ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 59.4MB in the end (delta: 32.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2233.16ms. Allocated memory was 83.9MB in the beginning and 123.7MB in the end (delta: 39.8MB). Free memory was 55.8MB in the beginning and 70.9MB in the end (delta: -15.1MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 126.70ms. Allocated memory is still 123.7MB. Free memory was 70.9MB in the beginning and 68.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.39ms. Allocated memory is still 123.7MB. Free memory was 68.1MB in the beginning and 66.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 651.53ms. Allocated memory is still 123.7MB. Free memory was 66.1MB in the beginning and 83.4MB in the end (delta: -17.3MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * CodeCheck took 1178.96ms. Allocated memory is still 123.7MB. Free memory was 83.4MB in the beginning and 56.8MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 123.7MB. Free memory is still 56.8MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:06:28,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0081277-5872-4cf9-b4bb-fbd55f1bcdc7/bin/ukojak-verify-1t5iHCbJaC/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