./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_22_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/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_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/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_f4fba189-6ba3-494c-8beb-ee7420863d62/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 7053ce1fd50292f4c0251e55cdcbe4ee607f3667316ffe87669fda95b011f152 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:26:47,093 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:26:47,210 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:26:47,218 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:26:47,219 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:26:47,264 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:26:47,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:26:47,266 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:26:47,267 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:26:47,272 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:26:47,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:26:47,274 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:26:47,274 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:26:47,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:26:47,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:26:47,277 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:26:47,277 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:26:47,277 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:26:47,278 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:26:47,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:26:47,279 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:26:47,280 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:26:47,281 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:26:47,281 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:26:47,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:26:47,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:26:47,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:26:47,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:26:47,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:26:47,283 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:26:47,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:26:47,285 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:26:47,285 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_f4fba189-6ba3-494c-8beb-ee7420863d62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7053ce1fd50292f4c0251e55cdcbe4ee607f3667316ffe87669fda95b011f152 [2023-11-21 18:26:47,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:26:47,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:26:47,606 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:26:47,608 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:26:47,608 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:26:47,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_22_bad.i [2023-11-21 18:26:50,785 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:26:51,205 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:26:51,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_22_bad.i [2023-11-21 18:26:51,236 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/data/bb01eadfe/db5730b370d142f6843c9fba0aa9f0bf/FLAG74f47081e [2023-11-21 18:26:51,251 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/data/bb01eadfe/db5730b370d142f6843c9fba0aa9f0bf [2023-11-21 18:26:51,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:26:51,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:26:51,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:26:51,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:26:51,263 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:26:51,264 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:26:51" (1/1) ... [2023-11-21 18:26:51,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f726789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:51, skipping insertion in model container [2023-11-21 18:26:51,265 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:26:51" (1/1) ... [2023-11-21 18:26:51,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:26:51,853 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:26:52,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:26:52,638 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:26:52,728 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:26:52,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:26:52,978 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:26:52,978 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:26:52,978 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:26:52,979 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:26:52,979 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:26:52,979 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:26:52,988 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:26:52,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52 WrapperNode [2023-11-21 18:26:52,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:26:52,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:26:52,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:26:52,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:26:53,000 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,112 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2023-11-21 18:26:53,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:26:53,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:26:53,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:26:53,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:26:53,124 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,124 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,134 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,135 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,146 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,164 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:26:53,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:26:53,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:26:53,176 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:26:53,176 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:26:52" (1/1) ... [2023-11-21 18:26:53,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:26:53,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:26:53,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:26:53,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:26:53,265 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:26:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:26:53,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:26:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:26:53,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:26:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:26:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:26:53,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:26:53,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:26:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:26:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:26:53,455 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:26:53,458 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:26:53,588 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:26:53,643 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:26:53,643 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:26:53,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:26:53 BoogieIcfgContainer [2023-11-21 18:26:53,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:26:53,646 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:26:53,646 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:26:53,657 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:26:53,657 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:26:53" (1/1) ... [2023-11-21 18:26:53,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:26:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:53,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-21 18:26:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-21 18:26:53,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:26:53,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:53,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:26:54,079 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 18:26:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:26:54,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-21 18:26:54,114 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-21 18:26:54,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:26:54,115 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:26:54,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:26:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:26:54,154 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:26:54,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:26:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:26:54,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:26:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:26:54,281 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:26:54,317 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:26:54 ImpRootNode [2023-11-21 18:26:54,318 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:26:54,319 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:26:54,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:26:54,321 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:26:54,322 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:26:53" (3/4) ... [2023-11-21 18:26:54,326 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:26:54,327 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:26:54,328 INFO L158 Benchmark]: Toolchain (without parser) took 3072.37ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 103.0MB in the end (delta: 4.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2023-11-21 18:26:54,330 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 107.0MB. Free memory was 76.8MB in the beginning and 76.8MB in the end (delta: 26.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:26:54,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1732.59ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 84.2MB in the end (delta: 23.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-11-21 18:26:54,332 INFO L158 Benchmark]: Boogie Procedure Inliner took 122.21ms. Allocated memory is still 157.3MB. Free memory was 84.2MB in the beginning and 81.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:26:54,333 INFO L158 Benchmark]: Boogie Preprocessor took 60.72ms. Allocated memory is still 157.3MB. Free memory was 81.1MB in the beginning and 79.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:26:54,334 INFO L158 Benchmark]: RCFGBuilder took 470.02ms. Allocated memory is still 157.3MB. Free memory was 79.2MB in the beginning and 64.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:26:54,340 INFO L158 Benchmark]: CodeCheck took 672.81ms. Allocated memory is still 157.3MB. Free memory was 64.5MB in the beginning and 104.0MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:26:54,343 INFO L158 Benchmark]: Witness Printer took 7.89ms. Allocated memory is still 157.3MB. Free memory was 104.0MB in the beginning and 103.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:26:54,351 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 14 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 65 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={18:31}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE190_Integer_Overflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1565] CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE190_Integer_Overflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal) VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data > 0 VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741824, data=1073741824, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741824, data=1073741824, 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 0.35ms. Allocated memory is still 107.0MB. Free memory was 76.8MB in the beginning and 76.8MB in the end (delta: 26.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1732.59ms. Allocated memory is still 157.3MB. Free memory was 107.3MB in the beginning and 84.2MB in the end (delta: 23.0MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 122.21ms. Allocated memory is still 157.3MB. Free memory was 84.2MB in the beginning and 81.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.72ms. Allocated memory is still 157.3MB. Free memory was 81.1MB in the beginning and 79.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 470.02ms. Allocated memory is still 157.3MB. Free memory was 79.2MB in the beginning and 64.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 672.81ms. Allocated memory is still 157.3MB. Free memory was 64.5MB in the beginning and 104.0MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.89ms. Allocated memory is still 157.3MB. Free memory was 104.0MB in the beginning and 103.0MB in the end (delta: 1.0MB). 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 18:26:54,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/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_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/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_f4fba189-6ba3-494c-8beb-ee7420863d62/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 7053ce1fd50292f4c0251e55cdcbe4ee607f3667316ffe87669fda95b011f152 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:26:57,257 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:26:57,386 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:26:57,447 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:26:57,448 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:26:57,449 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:26:57,450 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:26:57,451 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:26:57,452 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:26:57,457 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:26:57,457 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:26:57,458 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:26:57,458 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:26:57,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:26:57,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:26:57,461 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:26:57,462 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:26:57,462 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:26:57,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:26:57,464 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:26:57,464 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:26:57,465 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:26:57,466 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:26:57,466 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:26:57,467 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:26:57,467 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:26:57,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:26:57,468 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:26:57,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:26:57,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:26:57,471 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:26:57,471 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:26:57,471 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:26:57,472 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:26:57,472 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:26:57,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:26:57,473 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_f4fba189-6ba3-494c-8beb-ee7420863d62/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7053ce1fd50292f4c0251e55cdcbe4ee607f3667316ffe87669fda95b011f152 [2023-11-21 18:26:57,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:26:57,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:26:57,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:26:57,905 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:26:57,909 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:26:57,910 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_22_bad.i [2023-11-21 18:27:01,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:27:01,623 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:27:01,624 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_22_bad.i [2023-11-21 18:27:01,655 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/data/c023a076f/5530fd4f4c644eb5ad9f453dbeaf2be8/FLAGfd6815021 [2023-11-21 18:27:01,681 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/data/c023a076f/5530fd4f4c644eb5ad9f453dbeaf2be8 [2023-11-21 18:27:01,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:27:01,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:27:01,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:27:01,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:27:01,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:27:01,704 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:27:01" (1/1) ... [2023-11-21 18:27:01,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2407a9f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:01, skipping insertion in model container [2023-11-21 18:27:01,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:27:01" (1/1) ... [2023-11-21 18:27:01,801 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:27:02,236 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:27:02,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:27:02,902 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:27:02,925 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:27:03,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:27:03,173 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:27:03,173 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:27:03,173 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:27:03,174 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:27:03,174 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:27:03,174 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:27:03,183 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:27:03,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03 WrapperNode [2023-11-21 18:27:03,184 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:27:03,185 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:27:03,186 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:27:03,186 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:27:03,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,240 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,277 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2023-11-21 18:27:03,279 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:27:03,280 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:27:03,281 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:27:03,281 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:27:03,291 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,292 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,324 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,349 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,353 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:27:03,368 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:27:03,368 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:27:03,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:27:03,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:27:03,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:27:03,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:27:03,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:27:03,472 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:27:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:27:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:27:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:27:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:27:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:27:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:27:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:27:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:27:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:27:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:27:03,664 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:27:03,667 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:27:03,878 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:27:03,950 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:27:03,950 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:27:03,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:27:03 BoogieIcfgContainer [2023-11-21 18:27:03,952 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:27:03,953 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:27:03,954 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:27:03,964 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:27:03,965 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:27:03" (1/1) ... [2023-11-21 18:27:03,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:27:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:04,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-21 18:27:04,049 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-21 18:27:04,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:27:04,058 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:04,059 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:27:04,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:27:04,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:27:04,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:27:04,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:04,293 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:27:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:27:04,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 18:27:04,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:27:04,414 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 18:27:04,417 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:27:04,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:27:04,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:27:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-21 18:27:04,477 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-21 18:27:04,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 18:27:04,478 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:27:04,478 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:27:04,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:27:04,480 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:27:04,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:27:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:27:04,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:27:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:27:04,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:27:04,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:27:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:27:04,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-21 18:27:04,941 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:27:04,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:27:04 ImpRootNode [2023-11-21 18:27:04,971 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:27:04,971 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:27:04,971 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:27:04,972 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:27:04,972 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:27:03" (3/4) ... [2023-11-21 18:27:04,974 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:27:04,975 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:27:04,976 INFO L158 Benchmark]: Toolchain (without parser) took 3286.88ms. Allocated memory is still 127.9MB. Free memory was 105.2MB in the beginning and 56.4MB in the end (delta: 48.9MB). Peak memory consumption was 47.1MB. Max. memory is 16.1GB. [2023-11-21 18:27:04,977 INFO L158 Benchmark]: CDTParser took 0.63ms. Allocated memory is still 65.0MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:27:04,977 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1489.73ms. Allocated memory is still 127.9MB. Free memory was 104.9MB in the beginning and 67.4MB in the end (delta: 37.5MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2023-11-21 18:27:04,978 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.48ms. Allocated memory is still 127.9MB. Free memory was 67.4MB in the beginning and 64.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:27:04,979 INFO L158 Benchmark]: Boogie Preprocessor took 86.94ms. Allocated memory is still 127.9MB. Free memory was 64.3MB in the beginning and 62.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:27:04,979 INFO L158 Benchmark]: RCFGBuilder took 584.42ms. Allocated memory is still 127.9MB. Free memory was 62.2MB in the beginning and 85.0MB in the end (delta: -22.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2023-11-21 18:27:04,980 INFO L158 Benchmark]: CodeCheck took 1017.40ms. Allocated memory is still 127.9MB. Free memory was 85.0MB in the beginning and 56.9MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-21 18:27:04,980 INFO L158 Benchmark]: Witness Printer took 3.99ms. Allocated memory is still 127.9MB. Free memory is still 56.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:27:04,984 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 14 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 72 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 67 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: 1583]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal = 0; [L1571] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=0, argc=0, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE190_Integer_Overflow__int_fgets_multiply_22_bad() [L1552] int data; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1565] CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal = 1 [L1566] CALL CWE190_Integer_Overflow__int_fgets_multiply_22_badSink(data) [L1579] COND TRUE \read(CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal) VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741825, data=1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] COND TRUE data > 0 VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741825, data=1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] data * 2 VAL [CWE190_Integer_Overflow__int_fgets_multiply_22_badGlobal=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(data)=1073741825, 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 0.63ms. Allocated memory is still 65.0MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1489.73ms. Allocated memory is still 127.9MB. Free memory was 104.9MB in the beginning and 67.4MB in the end (delta: 37.5MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.48ms. Allocated memory is still 127.9MB. Free memory was 67.4MB in the beginning and 64.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.94ms. Allocated memory is still 127.9MB. Free memory was 64.3MB in the beginning and 62.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 584.42ms. Allocated memory is still 127.9MB. Free memory was 62.2MB in the beginning and 85.0MB in the end (delta: -22.7MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * CodeCheck took 1017.40ms. Allocated memory is still 127.9MB. Free memory was 85.0MB in the beginning and 56.9MB in the end (delta: 28.1MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 3.99ms. Allocated memory is still 127.9MB. Free memory is still 56.4MB. 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 18:27:05,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f4fba189-6ba3-494c-8beb-ee7420863d62/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