./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_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_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/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_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/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_2c70abec-2b31-4a4f-bcca-632f50af9c13/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 214018942630945ed0ac97056969924ebfca0524a2818c43ed0556fb8e1fc2b6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:54:45,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:54:45,238 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:54:45,247 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:54:45,248 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:54:45,276 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:54:45,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:54:45,278 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:54:45,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:54:45,280 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:54:45,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:54:45,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:54:45,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:54:45,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:54:45,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:54:45,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:54:45,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:54:45,285 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:54:45,286 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:54:45,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:54:45,287 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:54:45,288 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:54:45,288 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:54:45,289 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:54:45,289 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:54:45,290 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:45,290 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:54:45,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:54:45,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:54:45,292 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:54:45,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:54:45,293 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:54:45,293 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_2c70abec-2b31-4a4f-bcca-632f50af9c13/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214018942630945ed0ac97056969924ebfca0524a2818c43ed0556fb8e1fc2b6 [2023-11-21 18:54:45,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:54:45,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:54:45,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:54:45,594 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:54:45,595 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:54:45,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2023-11-21 18:54:48,878 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:54:49,406 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:54:49,407 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2023-11-21 18:54:49,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/data/4fd1a7e6b/0fa6611f77c04b06ae78457e1ab7cbab/FLAGa3a2d40da [2023-11-21 18:54:49,470 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/data/4fd1a7e6b/0fa6611f77c04b06ae78457e1ab7cbab [2023-11-21 18:54:49,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:54:49,475 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:54:49,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:49,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:54:49,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:54:49,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:49" (1/1) ... [2023-11-21 18:54:49,487 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ca6d50f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:49, skipping insertion in model container [2023-11-21 18:54:49,487 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:54:49" (1/1) ... [2023-11-21 18:54:49,584 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:54:50,080 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:54:50,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:50,906 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:54:50,944 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:54:51,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:54:51,274 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:51,275 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:51,276 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:51,296 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:51,296 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:51,297 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:54:51,315 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:54:51,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51 WrapperNode [2023-11-21 18:54:51,317 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:54:51,318 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:51,318 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:54:51,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:54:51,330 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,373 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,405 INFO L138 Inliner]: procedures = 501, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2023-11-21 18:54:51,406 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:54:51,407 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:54:51,407 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:54:51,407 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:54:51,419 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,437 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,439 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:54:51,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:54:51,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:54:51,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:54:51,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:51,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:54:51,486 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:54:51,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:54:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:54:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:54:51,549 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:54:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:54:51,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 18:54:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:54:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:54:51,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:54:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:54:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:54:51,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 18:54:51,738 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:54:51,741 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:54:51,887 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:54:51,931 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:54:51,931 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:54:51,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:51 BoogieIcfgContainer [2023-11-21 18:54:51,933 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:54:51,934 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:54:51,935 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:54:51,946 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:54:51,947 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:51" (1/1) ... [2023-11-21 18:54:51,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:54:52,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-21 18:54:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-21 18:54:52,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:54:52,035 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:52,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:54:52,542 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 18:54:52,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:54:52,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-21 18:54:52,613 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-21 18:54:52,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:54:52,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:54:52,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:54:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:54:52,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:54:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:54:52,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:54:52,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:54:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:54:52,786 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:54:52,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:54:52 ImpRootNode [2023-11-21 18:54:52,820 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:54:52,821 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:54:52,822 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:54:52,822 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:54:52,823 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:54:51" (3/4) ... [2023-11-21 18:54:52,825 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:54:52,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:54:52,828 INFO L158 Benchmark]: Toolchain (without parser) took 3352.76ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 95.4MB in the end (delta: 44.3MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2023-11-21 18:54:52,829 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 151.0MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:52,829 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1840.12ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 146.6MB in the end (delta: -6.9MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. [2023-11-21 18:54:52,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.02ms. Allocated memory is still 188.7MB. Free memory was 146.6MB in the beginning and 143.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:52,831 INFO L158 Benchmark]: Boogie Preprocessor took 36.56ms. Allocated memory is still 188.7MB. Free memory was 143.7MB in the beginning and 142.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:54:52,832 INFO L158 Benchmark]: RCFGBuilder took 488.95ms. Allocated memory is still 188.7MB. Free memory was 142.6MB in the beginning and 127.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 18:54:52,832 INFO L158 Benchmark]: CodeCheck took 886.15ms. Allocated memory is still 188.7MB. Free memory was 127.9MB in the beginning and 96.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-21 18:54:52,833 INFO L158 Benchmark]: Witness Printer took 5.59ms. Allocated memory is still 188.7MB. Free memory was 96.4MB in the beginning and 95.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:54:52,837 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 1567. 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; [L1580] 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) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=13, argc=13, argv={18:27}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_add_21_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] EXPR data = atoi(inputBuffer) [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563-L1573] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1574] badStatic = 1 [L1575] 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 + 1 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 0.32ms. Allocated memory is still 151.0MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1840.12ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 146.6MB in the end (delta: -6.9MB). Peak memory consumption was 61.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.02ms. Allocated memory is still 188.7MB. Free memory was 146.6MB in the beginning and 143.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.56ms. Allocated memory is still 188.7MB. Free memory was 143.7MB in the beginning and 142.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 488.95ms. Allocated memory is still 188.7MB. Free memory was 142.6MB in the beginning and 127.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 886.15ms. Allocated memory is still 188.7MB. Free memory was 127.9MB in the beginning and 96.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.59ms. Allocated memory is still 188.7MB. Free memory was 96.4MB in the beginning and 95.4MB 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 18:54:52,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/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_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/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_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/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_2c70abec-2b31-4a4f-bcca-632f50af9c13/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 214018942630945ed0ac97056969924ebfca0524a2818c43ed0556fb8e1fc2b6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:54:55,898 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:54:56,057 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-21 18:54:56,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:54:56,121 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:54:56,123 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:54:56,124 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:54:56,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:54:56,126 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:54:56,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:54:56,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:54:56,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:54:56,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:54:56,136 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:54:56,137 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 18:54:56,137 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 18:54:56,138 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:54:56,138 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 18:54:56,139 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:54:56,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:54:56,141 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:54:56,142 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:54:56,143 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:54:56,143 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:54:56,144 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:56,144 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-21 18:54:56,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:54:56,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:54:56,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:54:56,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:54:56,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:54:56,149 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 18:54:56,149 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 18:54:56,150 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:54:56,150 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-21 18:54:56,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 18:54:56,151 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_2c70abec-2b31-4a4f-bcca-632f50af9c13/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 214018942630945ed0ac97056969924ebfca0524a2818c43ed0556fb8e1fc2b6 [2023-11-21 18:54:56,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:54:56,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:54:56,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:54:56,713 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:54:56,714 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:54:56,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2023-11-21 18:55:00,280 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:55:00,787 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:55:00,788 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_21_bad.i [2023-11-21 18:55:00,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/data/e131992ce/f94ea48acd94489680da4da646723ddc/FLAGa6f61b046 [2023-11-21 18:55:00,849 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/data/e131992ce/f94ea48acd94489680da4da646723ddc [2023-11-21 18:55:00,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:55:00,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:55:00,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:55:00,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:55:00,868 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:55:00,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:55:00" (1/1) ... [2023-11-21 18:55:00,870 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c907f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:00, skipping insertion in model container [2023-11-21 18:55:00,870 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:55:00" (1/1) ... [2023-11-21 18:55:00,948 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:55:01,522 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:55:02,423 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:55:02,445 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:55:02,488 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 18:55:02,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:55:02,827 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:02,828 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:02,828 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:02,828 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:02,828 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:02,829 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 18:55:02,838 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:55:02,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02 WrapperNode [2023-11-21 18:55:02,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:55:02,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:55:02,841 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:55:02,841 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:55:02,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,921 INFO L138 Inliner]: procedures = 506, calls = 65, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2023-11-21 18:55:02,921 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:55:02,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:55:02,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:55:02,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:55:02,934 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:02,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:03,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:55:03,009 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:55:03,012 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:55:03,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:55:03,013 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:55:02" (1/1) ... [2023-11-21 18:55:03,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:55:03,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:55:03,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:55:03,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:55:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 18:55:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 18:55:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 18:55:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 18:55:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 18:55:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 18:55:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:55:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:55:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 18:55:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 18:55:03,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-21 18:55:03,350 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:55:03,353 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:55:03,623 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:55:03,717 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:55:03,718 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 18:55:03,720 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:03 BoogieIcfgContainer [2023-11-21 18:55:03,720 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:55:03,721 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:55:03,722 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:55:03,734 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:55:03,736 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:03" (1/1) ... [2023-11-21 18:55:03,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:55:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:03,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2023-11-21 18:55:03,847 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2023-11-21 18:55:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 18:55:03,854 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:03,855 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:55:03,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:55:03,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:55:03,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-21 18:55:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:04,105 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-21 18:55:04,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:55:04,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 18:55:04,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 18:55:04,211 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 18:55:04,214 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:55:04,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-21 18:55:04,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:55:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-21 18:55:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-21 18:55:04,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-21 18:55:04,259 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:55:04,259 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-21 18:55:04,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 [2023-11-21 18:55:04,261 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-21 18:55:04,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-21 18:55:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:04,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:55:04,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:04,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:04,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 18:55:04,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 18:55:04,816 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-21 18:55:04,820 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/bin/ukojak-verify-i0I2FZA1j2/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-21 18:55:04,821 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-21 18:55:04,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:55:04 ImpRootNode [2023-11-21 18:55:04,867 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:55:04,868 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:55:04,868 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:55:04,869 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:55:04,869 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:55:03" (3/4) ... [2023-11-21 18:55:04,872 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 18:55:04,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:55:04,875 INFO L158 Benchmark]: Toolchain (without parser) took 4016.91ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 79.2MB in the beginning and 93.8MB in the end (delta: -14.6MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-11-21 18:55:04,875 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 77.6MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:55:04,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1978.27ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 61.6MB in the end (delta: 17.3MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2023-11-21 18:55:04,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.18ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 58.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 18:55:04,879 INFO L158 Benchmark]: Boogie Preprocessor took 86.14ms. Allocated memory is still 107.0MB. Free memory was 58.6MB in the beginning and 56.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:55:04,887 INFO L158 Benchmark]: RCFGBuilder took 711.32ms. Allocated memory is still 107.0MB. Free memory was 56.5MB in the beginning and 67.7MB in the end (delta: -11.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2023-11-21 18:55:04,888 INFO L158 Benchmark]: CodeCheck took 1145.80ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 67.1MB in the beginning and 93.8MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:55:04,890 INFO L158 Benchmark]: Witness Printer took 5.72ms. Allocated memory is still 130.0MB. Free memory is still 93.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:55:04,899 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 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 1567. 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; [L1580] 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) [L1580] 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] [L1581] CALL CWE190_Integer_Overflow__int_fgets_add_21_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] EXPR data = atoi(inputBuffer) [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563-L1573] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } [L1574] badStatic = 1 [L1575] 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 + 1 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 0.75ms. Allocated memory is still 77.6MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1978.27ms. Allocated memory is still 107.0MB. Free memory was 79.0MB in the beginning and 61.6MB in the end (delta: 17.3MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.18ms. Allocated memory is still 107.0MB. Free memory was 61.6MB in the beginning and 58.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.14ms. Allocated memory is still 107.0MB. Free memory was 58.6MB in the beginning and 56.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 711.32ms. Allocated memory is still 107.0MB. Free memory was 56.5MB in the beginning and 67.7MB in the end (delta: -11.2MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * CodeCheck took 1145.80ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 67.1MB in the beginning and 93.8MB in the end (delta: -26.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.72ms. Allocated memory is still 130.0MB. Free memory is still 93.8MB. 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 18:55:04,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c70abec-2b31-4a4f-bcca-632f50af9c13/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