./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_07_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2 --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 38fcc3ba0e79ee05785e6b414a6eeef679d16b982f49df73c00434a543066b4e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:50:31,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:50:31,355 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:50:31,360 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:50:31,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:50:31,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:50:31,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:50:31,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:50:31,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:50:31,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:50:31,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:50:31,410 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:50:31,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:50:31,411 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:50:31,411 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:50:31,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:50:31,413 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:50:31,413 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:50:31,414 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:50:31,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:50:31,415 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:50:31,416 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:50:31,417 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:50:31,417 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:50:31,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:50:31,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:31,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:50:31,420 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:50:31,420 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:50:31,421 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:50:31,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:50:31,422 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:50:31,422 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_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38fcc3ba0e79ee05785e6b414a6eeef679d16b982f49df73c00434a543066b4e [2023-11-21 18:50:31,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:50:31,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:50:31,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:50:31,755 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:50:31,775 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:50:31,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_07_bad.i [2023-11-21 18:50:34,825 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:50:35,271 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:50:35,275 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_07_bad.i [2023-11-21 18:50:35,306 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/data/43f803c06/5e18d0c0763743f9a40e95e65157a175/FLAG6562bdbb1 [2023-11-21 18:50:35,323 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/data/43f803c06/5e18d0c0763743f9a40e95e65157a175 [2023-11-21 18:50:35,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:50:35,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:50:35,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:35,329 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:50:35,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:50:35,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:35" (1/1) ... [2023-11-21 18:50:35,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bb9d616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:35, skipping insertion in model container [2023-11-21 18:50:35,348 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:35" (1/1) ... [2023-11-21 18:50:35,437 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:50:35,853 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:50:36,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:36,658 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:50:36,678 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:50:36,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:36,891 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:36,891 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:36,892 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:36,892 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:36,892 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:36,892 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:36,900 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:50:36,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36 WrapperNode [2023-11-21 18:50:36,902 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:36,903 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:50:36,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:50:36,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:50:36,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:36,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:36,992 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-11-21 18:50:36,993 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:50:36,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:50:36,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:50:36,994 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:50:37,004 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,004 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,007 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,039 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,042 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:50:37,043 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:50:37,043 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:50:37,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:50:37,044 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:36" (1/1) ... [2023-11-21 18:50:37,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:37,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:50:37,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:50:37,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:50:37,138 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:50:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:50:37,139 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:50:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:50:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:50:37,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:50:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:50:37,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:50:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:50:37,140 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:50:37,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:50:37,343 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:50:37,345 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:50:37,521 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:50:37,557 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:50:37,558 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:50:37,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:37 BoogieIcfgContainer [2023-11-21 18:50:37,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:50:37,560 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:50:37,560 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:50:37,570 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:50:37,570 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:37" (1/1) ... [2023-11-21 18:50:37,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:50:37,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:37,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-21 18:50:37,633 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-21 18:50:37,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:50:37,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:37,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:50:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:37,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:50:37,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:37,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 21 transitions. [2023-11-21 18:50:37,932 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-21 18:50:37,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:50:37,932 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:37,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:50:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:50:38,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:50:38,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:50:38,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:50:38,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:50:38,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:50:38,142 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:50:38,178 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-11-21 18:50:38,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:50:38 ImpRootNode [2023-11-21 18:50:38,184 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:50:38,184 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:50:38,185 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:50:38,185 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:50:38,185 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:37" (3/4) ... [2023-11-21 18:50:38,187 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:50:38,189 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:50:38,190 INFO L158 Benchmark]: Toolchain (without parser) took 2862.20ms. Allocated memory is still 136.3MB. Free memory was 101.0MB in the beginning and 68.1MB in the end (delta: 32.9MB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2023-11-21 18:50:38,190 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:50:38,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1573.62ms. Allocated memory is still 136.3MB. Free memory was 101.0MB in the beginning and 78.4MB in the end (delta: 22.6MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2023-11-21 18:50:38,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.53ms. Allocated memory is still 136.3MB. Free memory was 78.4MB in the beginning and 76.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:50:38,193 INFO L158 Benchmark]: Boogie Preprocessor took 48.80ms. Allocated memory is still 136.3MB. Free memory was 76.1MB in the beginning and 74.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:50:38,193 INFO L158 Benchmark]: RCFGBuilder took 516.45ms. Allocated memory is still 136.3MB. Free memory was 74.4MB in the beginning and 93.8MB in the end (delta: -19.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-11-21 18:50:38,194 INFO L158 Benchmark]: CodeCheck took 623.57ms. Allocated memory is still 136.3MB. Free memory was 93.8MB in the beginning and 68.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 18:50:38,195 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 68.1MB in the end (delta: 464.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:50:38,199 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 1559. 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); [L1548] static int staticFive = 5; [L1579] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={12:28}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1580] CALL CWE191_Integer_Underflow__int_fgets_postdec_07_bad() [L1551] int data; [L1552] 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, staticFive=5] [L1553] COND TRUE staticFive==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { 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, staticFive=5] [L1567] COND TRUE staticFive==5 [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, staticFive=5] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1573.62ms. Allocated memory is still 136.3MB. Free memory was 101.0MB in the beginning and 78.4MB in the end (delta: 22.6MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.53ms. Allocated memory is still 136.3MB. Free memory was 78.4MB in the beginning and 76.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.80ms. Allocated memory is still 136.3MB. Free memory was 76.1MB in the beginning and 74.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.45ms. Allocated memory is still 136.3MB. Free memory was 74.4MB in the beginning and 93.8MB in the end (delta: -19.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * CodeCheck took 623.57ms. Allocated memory is still 136.3MB. Free memory was 93.8MB in the beginning and 68.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 136.3MB. Free memory was 68.6MB in the beginning and 68.1MB in the end (delta: 464.0kB). 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: IdentifierExpression #t~post100 could not be translated - 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 [2023-11-21 18:50:38,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2 --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 38fcc3ba0e79ee05785e6b414a6eeef679d16b982f49df73c00434a543066b4e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:50:40,871 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:50:41,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:50:41,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:50:41,075 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:50:41,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:50:41,077 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:50:41,077 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:50:41,078 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:50:41,083 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:50:41,084 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:50:41,084 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:50:41,085 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:50:41,087 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:50:41,087 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:50:41,088 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:50:41,088 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:50:41,089 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:50:41,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:50:41,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:50:41,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:50:41,092 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:50:41,093 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:50:41,093 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:50:41,094 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:41,094 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:50:41,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:50:41,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:41,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:50:41,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:50:41,098 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:50:41,098 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:50:41,098 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:41,099 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:50:41,099 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:50:41,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:50:41,100 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_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 38fcc3ba0e79ee05785e6b414a6eeef679d16b982f49df73c00434a543066b4e [2023-11-21 18:50:41,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:50:41,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:50:41,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:50:41,530 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:50:41,531 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:50:41,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_07_bad.i [2023-11-21 18:50:44,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:50:45,237 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:50:45,240 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_07_bad.i [2023-11-21 18:50:45,279 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/data/78e77c5b8/aca8c0072abc4a75a2b4ea8c41814a48/FLAG24ceaf508 [2023-11-21 18:50:45,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/data/78e77c5b8/aca8c0072abc4a75a2b4ea8c41814a48 [2023-11-21 18:50:45,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:50:45,305 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:50:45,308 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:45,309 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:50:45,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:50:45,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:45" (1/1) ... [2023-11-21 18:50:45,316 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c89b7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:45, skipping insertion in model container [2023-11-21 18:50:45,316 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:45" (1/1) ... [2023-11-21 18:50:45,402 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:50:45,815 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:50:46,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:46,471 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:50:46,531 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:50:46,637 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:50:46,832 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:46,832 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:46,832 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:46,832 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:46,833 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:46,833 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:50:46,841 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:50:46,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46 WrapperNode [2023-11-21 18:50:46,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:46,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:50:46,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:50:46,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:50:46,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,918 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-21 18:50:46,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:50:46,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:50:46,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:50:46,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:50:46,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,951 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:50:46,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:50:46,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:50:46,964 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:50:46,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:46" (1/1) ... [2023-11-21 18:50:46,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:46,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:50:47,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:50:47,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:50:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:50:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:50:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:50:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:50:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:50:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:50:47,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:50:47,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:50:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:50:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:50:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:50:47,276 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:50:47,282 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:50:47,492 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:50:47,565 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:50:47,566 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:50:47,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:47 BoogieIcfgContainer [2023-11-21 18:50:47,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:50:47,570 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:50:47,570 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:50:47,580 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:50:47,581 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:47" (1/1) ... [2023-11-21 18:50:47,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:50:47,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:47,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-21 18:50:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-21 18:50:47,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:50:47,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:47,678 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:47,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:50:47,683 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:50:47,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:50:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:47,810 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:50:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:50:47,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:50:47,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:50:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:50:47,893 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:50:47,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:50:47,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:50:47,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 26 transitions. [2023-11-21 18:50:47,956 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-21 18:50:47,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:50:47,957 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:50:47,957 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:50:47,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:50:47,958 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:50:47,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:50:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:50:48,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:50:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:50:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:50:48,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:50:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:50:48,406 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:50:48,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:50:48,408 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:50:48,436 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated [2023-11-21 18:50:48,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:50:48 ImpRootNode [2023-11-21 18:50:48,442 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:50:48,442 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:50:48,443 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:50:48,443 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:50:48,443 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:50:47" (3/4) ... [2023-11-21 18:50:48,445 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:50:48,447 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:50:48,448 INFO L158 Benchmark]: Toolchain (without parser) took 3142.54ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 66.3MB in the beginning and 65.8MB in the end (delta: 533.7kB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-21 18:50:48,448 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 94.4MB. Free memory is still 69.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:50:48,449 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1534.24ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 66.0MB in the beginning and 80.9MB in the end (delta: -14.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2023-11-21 18:50:48,450 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.24ms. Allocated memory is still 123.7MB. Free memory was 80.9MB in the beginning and 78.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:50:48,450 INFO L158 Benchmark]: Boogie Preprocessor took 43.45ms. Allocated memory is still 123.7MB. Free memory was 78.0MB in the beginning and 75.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:50:48,451 INFO L158 Benchmark]: RCFGBuilder took 605.26ms. Allocated memory is still 123.7MB. Free memory was 75.9MB in the beginning and 95.0MB in the end (delta: -19.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-21 18:50:48,452 INFO L158 Benchmark]: CodeCheck took 871.80ms. Allocated memory is still 123.7MB. Free memory was 95.0MB in the beginning and 66.5MB in the end (delta: 28.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-21 18:50:48,452 INFO L158 Benchmark]: Witness Printer took 4.43ms. Allocated memory is still 123.7MB. Free memory was 66.5MB in the beginning and 65.8MB in the end (delta: 781.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:50:48,456 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 68 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 44 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 1559. 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); [L1548] static int staticFive = 5; [L1579] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1579] 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, staticFive=5] [L1580] CALL CWE191_Integer_Underflow__int_fgets_postdec_07_bad() [L1551] int data; [L1552] 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, staticFive=5] [L1553] COND TRUE staticFive==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] EXPR data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555-L1565] { 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, staticFive=5] [L1567] COND TRUE staticFive==5 [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, staticFive=5] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 94.4MB. Free memory is still 69.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1534.24ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 66.0MB in the beginning and 80.9MB in the end (delta: -14.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.24ms. Allocated memory is still 123.7MB. Free memory was 80.9MB in the beginning and 78.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.45ms. Allocated memory is still 123.7MB. Free memory was 78.0MB in the beginning and 75.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 605.26ms. Allocated memory is still 123.7MB. Free memory was 75.9MB in the beginning and 95.0MB in the end (delta: -19.1MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * CodeCheck took 871.80ms. Allocated memory is still 123.7MB. Free memory was 95.0MB in the beginning and 66.5MB in the end (delta: 28.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.43ms. Allocated memory is still 123.7MB. Free memory was 66.5MB in the beginning and 65.8MB in the end (delta: 781.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated - 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 [2023-11-21 18:50:48,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71d7aea3-38b3-410a-ba57-ecb5c911eb78/bin/ukojak-verify-i0I2FZA1j2/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