./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_21_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_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/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_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/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_00895d76-80e8-4a07-8205-0aee5f5f4530/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 cc43c785b916715d9d06d5df936065bfc94a711ee443867dc58acdb6bafa4f02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:25:26,220 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:25:26,293 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:25:26,298 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:25:26,299 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:25:26,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:25:26,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:25:26,326 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:25:26,327 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:25:26,328 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:25:26,329 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:25:26,329 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:25:26,330 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:25:26,330 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:25:26,331 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:25:26,332 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:25:26,332 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:25:26,333 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:25:26,333 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:25:26,334 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:25:26,335 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:25:26,335 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:25:26,336 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:25:26,337 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:25:26,337 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:25:26,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:26,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:25:26,339 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:25:26,340 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:25:26,340 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:25:26,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:25:26,341 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:25:26,342 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_00895d76-80e8-4a07-8205-0aee5f5f4530/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc43c785b916715d9d06d5df936065bfc94a711ee443867dc58acdb6bafa4f02 [2023-11-21 18:25:26,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:25:26,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:25:26,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:25:26,682 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:25:26,683 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:25:26,685 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_21_bad.i [2023-11-21 18:25:29,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:25:30,406 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:25:30,408 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_21_bad.i [2023-11-21 18:25:30,445 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/data/d801cd4f0/e93cf75777004d0d89391d4df40adcbb/FLAGaccbce348 [2023-11-21 18:25:30,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/data/d801cd4f0/e93cf75777004d0d89391d4df40adcbb [2023-11-21 18:25:30,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:25:30,472 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:25:30,475 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:30,476 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:25:30,481 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:25:30,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3ae872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:30, skipping insertion in model container [2023-11-21 18:25:30,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:30" (1/1) ... [2023-11-21 18:25:30,568 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:25:30,928 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:31,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:31,557 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:25:31,590 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:31,711 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:31,949 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:31,949 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:31,949 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:31,950 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:31,950 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:31,950 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:31,958 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:25:31,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31 WrapperNode [2023-11-21 18:25:31,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:31,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:31,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:25:31,962 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:25:31,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,038 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2023-11-21 18:25:32,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:32,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:25:32,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:25:32,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:25:32,055 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,059 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,073 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,075 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:25:32,099 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:25:32,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:25:32,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:25:32,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:31" (1/1) ... [2023-11-21 18:25:32,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:32,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:25:32,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:25:32,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:25:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:25:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:25:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:25:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:25:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:25:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:25:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:25:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:25:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:25:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:25:32,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:25:32,345 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:25:32,347 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:25:32,486 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:25:32,545 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:25:32,554 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:25:32,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:32 BoogieIcfgContainer [2023-11-21 18:25:32,555 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:25:32,556 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:25:32,556 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:25:32,565 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:25:32,565 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:32" (1/1) ... [2023-11-21 18:25:32,573 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:25:32,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:32,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-21 18:25:32,626 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-21 18:25:32,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:25:32,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:32,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:33,073 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 18:25:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:33,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-21 18:25:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-21 18:25:33,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:25:33,140 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:33,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:25:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:33,191 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:33,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:33,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:33,337 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:25:33,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:25:33 ImpRootNode [2023-11-21 18:25:33,370 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:25:33,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:25:33,372 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:25:33,372 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:25:33,373 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:32" (3/4) ... [2023-11-21 18:25:33,375 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:25:33,377 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:25:33,378 INFO L158 Benchmark]: Toolchain (without parser) took 2905.81ms. Allocated memory was 136.3MB in the beginning and 213.9MB in the end (delta: 77.6MB). Free memory was 87.7MB in the beginning and 104.0MB in the end (delta: -16.2MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2023-11-21 18:25:33,378 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 136.3MB. Free memory was 107.9MB in the beginning and 107.8MB in the end (delta: 89.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:33,379 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1484.12ms. Allocated memory was 136.3MB in the beginning and 213.9MB in the end (delta: 77.6MB). Free memory was 87.7MB in the beginning and 155.4MB in the end (delta: -67.6MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2023-11-21 18:25:33,380 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.93ms. Allocated memory is still 213.9MB. Free memory was 155.4MB in the beginning and 152.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:25:33,381 INFO L158 Benchmark]: Boogie Preprocessor took 54.37ms. Allocated memory is still 213.9MB. Free memory was 152.2MB in the beginning and 151.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:33,382 INFO L158 Benchmark]: RCFGBuilder took 456.38ms. Allocated memory is still 213.9MB. Free memory was 151.2MB in the beginning and 135.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 18:25:33,382 INFO L158 Benchmark]: CodeCheck took 814.30ms. Allocated memory is still 213.9MB. Free memory was 135.4MB in the beginning and 104.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-21 18:25:33,383 INFO L158 Benchmark]: Witness Printer took 5.38ms. Allocated memory is still 213.9MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:33,386 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, 17 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, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 13 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={12:28}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_preinc_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] EXPR data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564-L1574] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, badStatic=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, badStatic=1, data=2147483647, 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 0.33ms. Allocated memory is still 136.3MB. Free memory was 107.9MB in the beginning and 107.8MB in the end (delta: 89.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1484.12ms. Allocated memory was 136.3MB in the beginning and 213.9MB in the end (delta: 77.6MB). Free memory was 87.7MB in the beginning and 155.4MB in the end (delta: -67.6MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.93ms. Allocated memory is still 213.9MB. Free memory was 155.4MB in the beginning and 152.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.37ms. Allocated memory is still 213.9MB. Free memory was 152.2MB in the beginning and 151.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.38ms. Allocated memory is still 213.9MB. Free memory was 151.2MB in the beginning and 135.4MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 814.30ms. Allocated memory is still 213.9MB. Free memory was 135.4MB in the beginning and 104.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.38ms. Allocated memory is still 213.9MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 18:25:33,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/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_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/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_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/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_00895d76-80e8-4a07-8205-0aee5f5f4530/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 cc43c785b916715d9d06d5df936065bfc94a711ee443867dc58acdb6bafa4f02 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:25:36,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:25:36,406 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:25:36,458 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:25:36,459 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:25:36,460 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:25:36,461 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:25:36,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:25:36,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:25:36,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:25:36,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:25:36,468 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:25:36,468 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:25:36,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:25:36,470 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:25:36,471 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:25:36,471 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:25:36,471 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:25:36,472 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:25:36,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:25:36,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:25:36,474 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:25:36,475 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:25:36,475 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:25:36,475 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:36,476 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:25:36,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:25:36,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:36,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:25:36,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:25:36,479 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:25:36,479 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:25:36,479 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:36,480 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:25:36,480 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:25:36,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:25:36,480 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_00895d76-80e8-4a07-8205-0aee5f5f4530/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc43c785b916715d9d06d5df936065bfc94a711ee443867dc58acdb6bafa4f02 [2023-11-21 18:25:36,870 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:25:36,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:25:36,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:25:36,902 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:25:36,903 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:25:36,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_21_bad.i [2023-11-21 18:25:40,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:25:40,786 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:25:40,787 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_21_bad.i [2023-11-21 18:25:40,818 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/data/c476bbfb2/5c61fb142bda41d9919ce49db4242ff1/FLAG73b1b074a [2023-11-21 18:25:40,838 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/data/c476bbfb2/5c61fb142bda41d9919ce49db4242ff1 [2023-11-21 18:25:40,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:25:40,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:25:40,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:40,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:25:40,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:25:40,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:40" (1/1) ... [2023-11-21 18:25:40,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4697b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:40, skipping insertion in model container [2023-11-21 18:25:40,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:25:40" (1/1) ... [2023-11-21 18:25:40,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:25:41,401 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:41,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:41,919 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:25:41,941 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:25:42,044 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:25:42,198 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,199 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,199 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,199 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,199 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,199 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:25:42,206 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:25:42,206 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42 WrapperNode [2023-11-21 18:25:42,206 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:25:42,207 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:42,208 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:25:42,208 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:25:42,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,257 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,282 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2023-11-21 18:25:42,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:25:42,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:25:42,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:25:42,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:25:42,293 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,293 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,298 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,310 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,313 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,320 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:25:42,321 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:25:42,321 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:25:42,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:25:42,322 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:25:42,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:25:42,377 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:25:42,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:25:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:25:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:25:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:25:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:25:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:25:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:25:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:25:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:25:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:25:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:25:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:25:42,603 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:25:42,604 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:25:42,741 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:25:42,784 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:25:42,785 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:25:42,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:42 BoogieIcfgContainer [2023-11-21 18:25:42,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:25:42,787 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:25:42,788 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:25:42,797 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:25:42,798 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:42" (1/1) ... [2023-11-21 18:25:42,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:25:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:42,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-21 18:25:42,861 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-21 18:25:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:25:42,865 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:42,865 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:42,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:25:42,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:25:42,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:25:43,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:43,006 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:25:43,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:25:43,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:25:43,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:25:43,072 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 18:25:43,073 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:25:43,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-21 18:25:43,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:25:43,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-21 18:25:43,108 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-21 18:25:43,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:25:43,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:25:43,109 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:25:43,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:25:43,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:25:43,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:25:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:43,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:43,508 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:25:43,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:25:43,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:25:43,589 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:25:43,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:25:43 ImpRootNode [2023-11-21 18:25:43,634 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:25:43,634 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:25:43,634 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:25:43,635 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:25:43,635 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:25:42" (3/4) ... [2023-11-21 18:25:43,637 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:25:43,638 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:25:43,639 INFO L158 Benchmark]: Toolchain (without parser) took 2794.57ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.4MB in the beginning and 69.7MB in the end (delta: -15.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,640 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 81.8MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:43,641 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1359.27ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.2MB in the beginning and 58.6MB in the end (delta: -4.4MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.71ms. Allocated memory is still 107.0MB. Free memory was 58.6MB in the beginning and 55.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,643 INFO L158 Benchmark]: Boogie Preprocessor took 36.57ms. Allocated memory is still 107.0MB. Free memory was 55.8MB in the beginning and 53.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,648 INFO L158 Benchmark]: RCFGBuilder took 465.76ms. Allocated memory is still 107.0MB. Free memory was 53.7MB in the beginning and 66.7MB in the end (delta: -13.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-21 18:25:43,649 INFO L158 Benchmark]: CodeCheck took 846.39ms. Allocated memory is still 107.0MB. Free memory was 66.7MB in the beginning and 69.7MB in the end (delta: -3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:43,649 INFO L158 Benchmark]: Witness Printer took 4.25ms. Allocated memory is still 107.0MB. Free memory is still 69.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:25:43,658 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, 17 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, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 13 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] 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}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE190_Integer_Overflow__int_fgets_preinc_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] EXPR data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564-L1574] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, badStatic=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=2147483647, badStatic=1, data=2147483647, 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 0.67ms. Allocated memory is still 81.8MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1359.27ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 54.2MB in the beginning and 58.6MB in the end (delta: -4.4MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.71ms. Allocated memory is still 107.0MB. Free memory was 58.6MB in the beginning and 55.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.57ms. Allocated memory is still 107.0MB. Free memory was 55.8MB in the beginning and 53.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 465.76ms. Allocated memory is still 107.0MB. Free memory was 53.7MB in the beginning and 66.7MB in the end (delta: -13.0MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * CodeCheck took 846.39ms. Allocated memory is still 107.0MB. Free memory was 66.7MB in the beginning and 69.7MB in the end (delta: -3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.25ms. Allocated memory is still 107.0MB. Free memory is still 69.7MB. 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 18:25:43,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00895d76-80e8-4a07-8205-0aee5f5f4530/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