./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/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_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/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_619b7702-68cf-4b63-9bf9-954c1a1e7749/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 65e8a0a9ca254c7952538dbe77a1c5314ecc616f0d4fbd62f6ebdc2d7f1ee180 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:35:27,292 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:35:27,364 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:35:27,370 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:35:27,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:35:27,396 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:35:27,397 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:35:27,397 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:35:27,398 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:35:27,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:35:27,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:35:27,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:35:27,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:35:27,401 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:35:27,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:35:27,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:35:27,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:35:27,404 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:35:27,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:35:27,405 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:35:27,405 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:35:27,411 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:35:27,412 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:35:27,412 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:35:27,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:35:27,413 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:27,413 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:35:27,414 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:35:27,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:35:27,415 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:35:27,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:35:27,416 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:35:27,417 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_619b7702-68cf-4b63-9bf9-954c1a1e7749/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65e8a0a9ca254c7952538dbe77a1c5314ecc616f0d4fbd62f6ebdc2d7f1ee180 [2023-11-21 18:35:27,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:35:27,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:35:27,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:35:27,673 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:35:27,674 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:35:27,675 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2023-11-21 18:35:30,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:35:31,199 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:35:31,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2023-11-21 18:35:31,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/data/d6629ec4f/071a7830d9174ff788174c57a435513a/FLAG62af158ac [2023-11-21 18:35:31,263 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/data/d6629ec4f/071a7830d9174ff788174c57a435513a [2023-11-21 18:35:31,271 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:35:31,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:35:31,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:31,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:35:31,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:35:31,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:31" (1/1) ... [2023-11-21 18:35:31,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@690c438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:31, skipping insertion in model container [2023-11-21 18:35:31,290 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:31" (1/1) ... [2023-11-21 18:35:31,384 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:35:31,844 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:35:32,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:32,562 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:35:32,609 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:35:32,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:32,896 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:32,896 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:32,897 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:32,897 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:32,897 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:32,897 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:32,905 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:35:32,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32 WrapperNode [2023-11-21 18:35:32,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:32,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:32,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:35:32,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:35:32,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:32,949 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:32,977 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-21 18:35:32,977 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:32,978 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:35:32,978 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:35:32,978 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:35:32,992 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:32,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:33,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:33,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:33,012 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:33,014 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:33,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:33,034 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:33,038 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:35:33,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:35:33,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:35:33,053 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:35:33,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:32" (1/1) ... [2023-11-21 18:35:33,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:33,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:35:33,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:35:33,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:35:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:35:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:35:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:35:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:35:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:35:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:35:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:35:33,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:35:33,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:35:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:35:33,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:35:33,277 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:35:33,280 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:35:33,420 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:35:33,467 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:35:33,468 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:35:33,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:33 BoogieIcfgContainer [2023-11-21 18:35:33,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:35:33,470 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:35:33,470 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:35:33,491 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:35:33,491 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:33" (1/1) ... [2023-11-21 18:35:33,499 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:35:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:33,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-21 18:35:33,547 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-21 18:35:33,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:35:33,552 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:33,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:33,888 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 18:35:33,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:33,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 23 transitions. [2023-11-21 18:35:33,943 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-21 18:35:33,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:35:33,944 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:33,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:35:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:34,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:35:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:34,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:35:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:34,208 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:35:34,254 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:35:34 ImpRootNode [2023-11-21 18:35:34,254 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:35:34,255 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:35:34,255 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:35:34,256 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:35:34,256 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:33" (3/4) ... [2023-11-21 18:35:34,259 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:35:34,260 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:35:34,261 INFO L158 Benchmark]: Toolchain (without parser) took 2987.07ms. Allocated memory is still 176.2MB. Free memory was 127.4MB in the beginning and 74.1MB in the end (delta: 53.3MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2023-11-21 18:35:34,261 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:34,262 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1629.58ms. Allocated memory is still 176.2MB. Free memory was 126.9MB in the beginning and 120.1MB in the end (delta: 6.7MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. [2023-11-21 18:35:34,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.01ms. Allocated memory is still 176.2MB. Free memory was 120.1MB in the beginning and 117.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:35:34,264 INFO L158 Benchmark]: Boogie Preprocessor took 60.75ms. Allocated memory is still 176.2MB. Free memory was 117.2MB in the beginning and 116.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:35:34,265 INFO L158 Benchmark]: RCFGBuilder took 417.01ms. Allocated memory is still 176.2MB. Free memory was 116.0MB in the beginning and 101.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:35:34,265 INFO L158 Benchmark]: CodeCheck took 784.29ms. Allocated memory is still 176.2MB. Free memory was 100.4MB in the beginning and 74.1MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-21 18:35:34,266 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 176.2MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:34,270 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 17 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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 const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, \old(argc)=18, argc=18, argv={13:31}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_multiply_04_bad() [L1552] int data; [L1553] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] EXPR data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556-L1566] { 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE \read(STATIC_CONST_TRUE) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 140.5MB. Free memory is still 86.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1629.58ms. Allocated memory is still 176.2MB. Free memory was 126.9MB in the beginning and 120.1MB in the end (delta: 6.7MB). Peak memory consumption was 49.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.01ms. Allocated memory is still 176.2MB. Free memory was 120.1MB in the beginning and 117.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.75ms. Allocated memory is still 176.2MB. Free memory was 117.2MB in the beginning and 116.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 417.01ms. Allocated memory is still 176.2MB. Free memory was 116.0MB in the beginning and 101.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 784.29ms. Allocated memory is still 176.2MB. Free memory was 100.4MB in the beginning and 74.1MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.82ms. Allocated memory is still 176.2MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:35:34,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/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_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/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_619b7702-68cf-4b63-9bf9-954c1a1e7749/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 65e8a0a9ca254c7952538dbe77a1c5314ecc616f0d4fbd62f6ebdc2d7f1ee180 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:35:36,981 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:35:37,062 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:35:37,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:35:37,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:35:37,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:35:37,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:35:37,112 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:35:37,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:35:37,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:35:37,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:35:37,120 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:35:37,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:35:37,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:35:37,123 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:35:37,123 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:35:37,124 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:35:37,124 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:35:37,125 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:35:37,126 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:35:37,126 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:35:37,127 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:35:37,128 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:35:37,128 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:35:37,129 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:35:37,129 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:35:37,130 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:35:37,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:37,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:35:37,132 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:35:37,133 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:35:37,133 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:35:37,134 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:35:37,134 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:35:37,135 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:35:37,135 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:35:37,135 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_619b7702-68cf-4b63-9bf9-954c1a1e7749/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65e8a0a9ca254c7952538dbe77a1c5314ecc616f0d4fbd62f6ebdc2d7f1ee180 [2023-11-21 18:35:37,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:35:37,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:35:37,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:35:37,649 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:35:37,650 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:35:37,652 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2023-11-21 18:35:40,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:35:41,505 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:35:41,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_04_bad.i [2023-11-21 18:35:41,553 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/data/c34093e84/1bbc93375a25414a857774f0deb92945/FLAG94dce4dfc [2023-11-21 18:35:41,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/data/c34093e84/1bbc93375a25414a857774f0deb92945 [2023-11-21 18:35:41,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:35:41,587 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:35:41,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:41,595 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:35:41,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:35:41,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:41" (1/1) ... [2023-11-21 18:35:41,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6754c8fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:41, skipping insertion in model container [2023-11-21 18:35:41,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:35:41" (1/1) ... [2023-11-21 18:35:41,690 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:35:42,251 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:35:42,959 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:42,985 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:35:43,023 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:35:43,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:35:43,346 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:43,347 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:43,347 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:43,347 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:43,348 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:43,348 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:35:43,357 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:35:43,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43 WrapperNode [2023-11-21 18:35:43,358 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:35:43,359 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:43,359 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:35:43,360 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:35:43,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,419 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,459 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-21 18:35:43,460 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:35:43,461 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:35:43,461 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:35:43,461 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:35:43,473 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,479 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,479 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,500 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,506 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:35:43,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:35:43,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:35:43,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:35:43,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:35:43" (1/1) ... [2023-11-21 18:35:43,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:35:43,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:35:43,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:35:43,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:35:43,603 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:35:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:35:43,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:35:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:35:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:35:43,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:35:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:35:43,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:35:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:35:43,605 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:35:43,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:35:43,773 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:35:43,775 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:35:43,995 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:35:44,044 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:35:44,044 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:35:44,046 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:44 BoogieIcfgContainer [2023-11-21 18:35:44,046 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:35:44,047 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:35:44,047 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:35:44,059 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:35:44,060 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:44" (1/1) ... [2023-11-21 18:35:44,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:35:44,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-21 18:35:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-21 18:35:44,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:35:44,164 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:44,165 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:35:44,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:35:44,168 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:35:44,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:35:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:44,356 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:35:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:35:44,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:35:44,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:35:44,468 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 18:35:44,470 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:35:44,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:35:44,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:35:44,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-21 18:35:44,542 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-21 18:35:44,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:35:44,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:35:44,544 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:35:44,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:35:44,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:35:44,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:35:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:44,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:35:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:45,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:45,089 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:35:45,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:35:45,169 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:35:45,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-21 18:35:45,174 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:35:45,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:35:45 ImpRootNode [2023-11-21 18:35:45,244 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:35:45,245 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:35:45,245 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:35:45,246 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:35:45,246 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:35:44" (3/4) ... [2023-11-21 18:35:45,248 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:35:45,250 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:35:45,251 INFO L158 Benchmark]: Toolchain (without parser) took 3663.27ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 42.1MB in the beginning and 37.3MB in the end (delta: 4.8MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2023-11-21 18:35:45,251 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:45,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1764.51ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 41.8MB in the beginning and 60.7MB in the end (delta: -18.9MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2023-11-21 18:35:45,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.89ms. Allocated memory is still 90.2MB. Free memory was 60.7MB in the beginning and 57.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:35:45,256 INFO L158 Benchmark]: Boogie Preprocessor took 45.43ms. Allocated memory is still 90.2MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:35:45,263 INFO L158 Benchmark]: RCFGBuilder took 539.25ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 38.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:35:45,263 INFO L158 Benchmark]: CodeCheck took 1197.38ms. Allocated memory is still 90.2MB. Free memory was 38.3MB in the beginning and 37.7MB in the end (delta: 605.0kB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2023-11-21 18:35:45,266 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 90.2MB. Free memory was 37.7MB in the beginning and 37.3MB in the end (delta: 484.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:35:45,276 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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 const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_multiply_04_bad() [L1552] int data; [L1553] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] EXPR data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556-L1566] { 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] COND TRUE \read(STATIC_CONST_TRUE) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, STATIC_CONST_FALSE=0, STATIC_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 0.74ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1764.51ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 41.8MB in the beginning and 60.7MB in the end (delta: -18.9MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.89ms. Allocated memory is still 90.2MB. Free memory was 60.7MB in the beginning and 57.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.43ms. Allocated memory is still 90.2MB. Free memory was 57.7MB in the beginning and 55.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 539.25ms. Allocated memory is still 90.2MB. Free memory was 55.6MB in the beginning and 38.3MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1197.38ms. Allocated memory is still 90.2MB. Free memory was 38.3MB in the beginning and 37.7MB in the end (delta: 605.0kB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 90.2MB. Free memory was 37.7MB in the beginning and 37.3MB in the end (delta: 484.8kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:35:45,329 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_619b7702-68cf-4b63-9bf9-954c1a1e7749/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