./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_09_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_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/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_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/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_f81d41a2-d168-4685-abd4-23dde495976b/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 0283ab22a43a29f7242da1a5998f1b6d3ea1b71a52af0be6e9b5ac5ec182a866 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:50:54,939 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:50:55,025 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:50:55,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:50:55,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:50:55,069 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:50:55,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:50:55,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:50:55,074 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:50:55,081 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:50:55,083 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:50:55,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:50:55,084 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:50:55,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:50:55,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:50:55,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:50:55,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:50:55,088 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:50:55,089 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:50:55,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:50:55,090 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:50:55,091 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:50:55,092 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:50:55,092 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:50:55,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:50:55,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:50:55,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:50:55,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:50:55,095 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:50:55,095 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:50:55,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:50:55,097 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:50:55,097 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_f81d41a2-d168-4685-abd4-23dde495976b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0283ab22a43a29f7242da1a5998f1b6d3ea1b71a52af0be6e9b5ac5ec182a866 [2023-11-21 18:50:55,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:50:55,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:50:55,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:50:55,488 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:50:55,489 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:50:55,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_09_bad.i [2023-11-21 18:50:58,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:50:59,299 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:50:59,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_09_bad.i [2023-11-21 18:50:59,334 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/data/697a7a9d5/80a6f4b2ef494a06b48c830b012f0695/FLAGe1ed7a239 [2023-11-21 18:50:59,354 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/data/697a7a9d5/80a6f4b2ef494a06b48c830b012f0695 [2023-11-21 18:50:59,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:50:59,362 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:50:59,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:50:59,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:50:59,370 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:50:59,371 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:59" (1/1) ... [2023-11-21 18:50:59,372 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59698d0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:50:59, skipping insertion in model container [2023-11-21 18:50:59,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:50:59" (1/1) ... [2023-11-21 18:50:59,466 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:50:59,949 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:51:00,724 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:51:00,738 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:51:00,762 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:51:00,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:51:01,070 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:01,071 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:01,071 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:01,071 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:01,071 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:01,071 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:01,079 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:51:01,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01 WrapperNode [2023-11-21 18:51:01,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:51:01,082 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:51:01,082 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:51:01,082 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:51:01,090 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,193 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-21 18:51:01,194 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:51:01,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:51:01,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:51:01,195 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:51:01,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,221 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,221 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,234 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,236 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:51:01,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:51:01,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:51:01,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:51:01,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:51:01,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:51:01,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:51:01,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:51:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:51:01,331 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:51:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:51:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:51:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:51:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:51:01,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:51:01,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:51:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:51:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:51:01,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:51:01,495 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:51:01,497 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:51:01,628 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:51:01,671 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:51:01,671 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:51:01,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:01 BoogieIcfgContainer [2023-11-21 18:51:01,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:51:01,674 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:51:01,674 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:51:01,685 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:51:01,685 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:01" (1/1) ... [2023-11-21 18:51:01,695 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:51:01,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:51:01,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-21 18:51:01,751 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-21 18:51:01,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:51:01,756 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:51:01,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:51:01,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:51:02,208 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 18:51:02,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:51:02,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 21 transitions. [2023-11-21 18:51:02,299 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-21 18:51:02,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:51:02,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:51:02,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:51:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:02,388 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:51:02,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:02,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:51:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:02,530 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:51:02,581 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-11-21 18:51:02,588 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:51:02 ImpRootNode [2023-11-21 18:51:02,588 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:51:02,589 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:51:02,589 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:51:02,590 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:51:02,591 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:01" (3/4) ... [2023-11-21 18:51:02,593 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:51:02,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:51:02,596 INFO L158 Benchmark]: Toolchain (without parser) took 3234.31ms. Allocated memory is still 174.1MB. Free memory was 135.5MB in the beginning and 87.2MB in the end (delta: 48.2MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2023-11-21 18:51:02,597 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 132.1MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:51:02,598 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1716.87ms. Allocated memory is still 174.1MB. Free memory was 134.8MB in the beginning and 133.4MB in the end (delta: 1.4MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. [2023-11-21 18:51:02,599 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.35ms. Allocated memory is still 174.1MB. Free memory was 133.4MB in the beginning and 130.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:51:02,600 INFO L158 Benchmark]: Boogie Preprocessor took 60.02ms. Allocated memory is still 174.1MB. Free memory was 130.4MB in the beginning and 129.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:51:02,601 INFO L158 Benchmark]: RCFGBuilder took 417.76ms. Allocated memory is still 174.1MB. Free memory was 129.2MB in the beginning and 114.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:51:02,602 INFO L158 Benchmark]: CodeCheck took 914.26ms. Allocated memory is still 174.1MB. Free memory was 114.5MB in the beginning and 88.3MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 18:51:02,603 INFO L158 Benchmark]: Witness Printer took 6.26ms. Allocated memory is still 174.1MB. Free memory was 88.3MB in the beginning and 87.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:51:02,608 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, 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, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 15 mSDtfsCounter, 7 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, 0.3s 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: 1569]: 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)=13, argc=13, argv={12:29}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_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) [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 132.1MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1716.87ms. Allocated memory is still 174.1MB. Free memory was 134.8MB in the beginning and 133.4MB in the end (delta: 1.4MB). Peak memory consumption was 67.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.35ms. Allocated memory is still 174.1MB. Free memory was 133.4MB in the beginning and 130.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.02ms. Allocated memory is still 174.1MB. Free memory was 130.4MB in the beginning and 129.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.76ms. Allocated memory is still 174.1MB. Free memory was 129.2MB in the beginning and 114.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 914.26ms. Allocated memory is still 174.1MB. Free memory was 114.5MB in the beginning and 88.3MB in the end (delta: 26.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 6.26ms. Allocated memory is still 174.1MB. Free memory was 88.3MB in the beginning and 87.2MB in the end (delta: 1.0MB). 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~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 18:51:02,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/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_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/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_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/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_f81d41a2-d168-4685-abd4-23dde495976b/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 0283ab22a43a29f7242da1a5998f1b6d3ea1b71a52af0be6e9b5ac5ec182a866 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:51:05,884 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:51:05,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:51:06,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:51:06,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:51:06,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:51:06,033 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:51:06,034 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:51:06,035 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:51:06,036 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:51:06,037 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:51:06,038 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:51:06,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:51:06,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:51:06,040 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:51:06,041 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:51:06,042 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:51:06,043 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:51:06,043 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:51:06,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:51:06,045 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:51:06,046 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:51:06,047 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:51:06,047 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:51:06,048 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:51:06,048 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:51:06,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:51:06,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:51:06,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:51:06,051 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:51:06,052 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:51:06,052 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:51:06,053 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:51:06,053 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:51:06,053 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:51:06,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:51:06,054 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_f81d41a2-d168-4685-abd4-23dde495976b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0283ab22a43a29f7242da1a5998f1b6d3ea1b71a52af0be6e9b5ac5ec182a866 [2023-11-21 18:51:06,568 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:51:06,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:51:06,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:51:06,617 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:51:06,618 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:51:06,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_09_bad.i [2023-11-21 18:51:10,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:51:10,866 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:51:10,873 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_09_bad.i [2023-11-21 18:51:10,912 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/data/96542959e/089e6ccef15f422b82cf3a1cf0f8c558/FLAG34dd1b20e [2023-11-21 18:51:10,932 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/data/96542959e/089e6ccef15f422b82cf3a1cf0f8c558 [2023-11-21 18:51:10,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:51:10,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:51:10,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:51:10,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:51:10,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:51:10,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:51:10" (1/1) ... [2023-11-21 18:51:10,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3383c404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:10, skipping insertion in model container [2023-11-21 18:51:10,954 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:51:10" (1/1) ... [2023-11-21 18:51:11,054 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:51:11,550 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:51:12,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:51:12,240 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:51:12,261 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:51:12,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:51:12,565 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:12,566 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:12,566 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:12,566 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:12,566 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:12,567 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:51:12,575 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:51:12,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12 WrapperNode [2023-11-21 18:51:12,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:51:12,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:51:12,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:51:12,578 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:51:12,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,644 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,681 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-21 18:51:12,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:51:12,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:51:12,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:51:12,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:51:12,694 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,694 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,721 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,729 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,734 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:51:12,735 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:51:12,735 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:51:12,736 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:51:12,736 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:51:12" (1/1) ... [2023-11-21 18:51:12,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:51:12,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:51:12,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:51:12,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:51:12,819 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:51:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:51:12,820 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:51:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:51:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:51:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:51:12,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:51:12,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:51:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:51:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:51:12,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:51:13,017 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:51:13,020 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:51:13,184 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:51:13,254 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:51:13,269 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:51:13,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:13 BoogieIcfgContainer [2023-11-21 18:51:13,272 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:51:13,273 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:51:13,274 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:51:13,287 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:51:13,288 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:13" (1/1) ... [2023-11-21 18:51:13,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:51:13,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:51:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-21 18:51:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-21 18:51:13,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:51:13,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:51:13,400 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:51:13,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:51:13,403 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:51:13,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:51:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:51:13,627 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:51:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:51:13,671 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:51:13,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:51:13,726 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 18:51:13,728 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:51:13,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:51:13,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:51:13,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-11-21 18:51:13,796 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-21 18:51:13,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:51:13,797 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:51:13,798 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:51:13,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:51:13,799 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:51:13,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:51:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:14,024 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:51:14,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:14,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:51:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:51:14,355 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:51:14,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:51:14,365 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:51:14,413 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated [2023-11-21 18:51:14,421 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:51:14 ImpRootNode [2023-11-21 18:51:14,421 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:51:14,422 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:51:14,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:51:14,422 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:51:14,424 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:51:13" (3/4) ... [2023-11-21 18:51:14,426 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:51:14,427 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:51:14,429 INFO L158 Benchmark]: Toolchain (without parser) took 3487.59ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 52.3MB in the beginning and 74.9MB in the end (delta: -22.7MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2023-11-21 18:51:14,430 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 55.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:51:14,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1633.87ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 52.3MB in the beginning and 59.0MB in the end (delta: -6.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-21 18:51:14,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.35ms. Allocated memory is still 111.1MB. Free memory was 59.0MB in the beginning and 56.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:51:14,439 INFO L158 Benchmark]: Boogie Preprocessor took 51.42ms. Allocated memory is still 111.1MB. Free memory was 56.2MB in the beginning and 53.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:51:14,440 INFO L158 Benchmark]: RCFGBuilder took 536.68ms. Allocated memory is still 111.1MB. Free memory was 53.8MB in the beginning and 68.0MB in the end (delta: -14.2MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-11-21 18:51:14,441 INFO L158 Benchmark]: CodeCheck took 1148.64ms. Allocated memory is still 111.1MB. Free memory was 68.0MB in the beginning and 74.9MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:51:14,443 INFO L158 Benchmark]: Witness Printer took 5.48ms. Allocated memory is still 111.1MB. Free memory is still 74.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:51:14,452 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: 1.0s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 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, 11 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 58 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, 9 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: 1569]: 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_postdec_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) [L1569] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 79.7MB. Free memory was 55.6MB in the beginning and 55.4MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1633.87ms. Allocated memory was 79.7MB in the beginning and 111.1MB in the end (delta: 31.5MB). Free memory was 52.3MB in the beginning and 59.0MB in the end (delta: -6.7MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.35ms. Allocated memory is still 111.1MB. Free memory was 59.0MB in the beginning and 56.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.42ms. Allocated memory is still 111.1MB. Free memory was 56.2MB in the beginning and 53.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.68ms. Allocated memory is still 111.1MB. Free memory was 53.8MB in the beginning and 68.0MB in the end (delta: -14.2MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * CodeCheck took 1148.64ms. Allocated memory is still 111.1MB. Free memory was 68.0MB in the beginning and 74.9MB in the end (delta: -6.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.48ms. Allocated memory is still 111.1MB. Free memory is still 74.9MB. 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~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 18:51:14,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f81d41a2-d168-4685-abd4-23dde495976b/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