./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV --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 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:03:48,132 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:03:48,248 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-12 00:03:48,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:03:48,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:03:48,296 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:03:48,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:03:48,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:03:48,299 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:03:48,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:03:48,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:03:48,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:03:48,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:03:48,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:03:48,309 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:03:48,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:03:48,310 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:03:48,310 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:03:48,311 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:03:48,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:03:48,312 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:03:48,312 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:03:48,313 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:03:48,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:03:48,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:03:48,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:03:48,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:03:48,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:03:48,316 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:03:48,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:03:48,318 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:03:48,318 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_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa [2023-11-12 00:03:48,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:03:48,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:03:48,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:03:48,654 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:03:48,655 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:03:48,656 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2023-11-12 00:03:51,698 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:03:52,153 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:03:52,156 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2023-11-12 00:03:52,186 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/data/aca3955c5/2cb5b104b6d84b26bb73d6870646af13/FLAG1a90c254c [2023-11-12 00:03:52,203 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/data/aca3955c5/2cb5b104b6d84b26bb73d6870646af13 [2023-11-12 00:03:52,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:03:52,207 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:03:52,209 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:03:52,209 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:03:52,215 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:03:52,215 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:03:52" (1/1) ... [2023-11-12 00:03:52,217 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dc1c135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:52, skipping insertion in model container [2023-11-12 00:03:52,217 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:03:52" (1/1) ... [2023-11-12 00:03:52,308 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:03:52,726 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:03:53,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:03:53,330 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:03:53,354 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:03:53,453 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:03:53,575 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:03:53,575 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:03:53,576 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:03:53,576 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:03:53,576 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:03:53,576 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:03:53,584 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:03:53,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53 WrapperNode [2023-11-12 00:03:53,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:03:53,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:03:53,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:03:53,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:03:53,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,623 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,652 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2023-11-12 00:03:53,652 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:03:53,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:03:53,653 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:03:53,653 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:03:53,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,682 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:03:53,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:03:53,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:03:53,686 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:03:53,687 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:03:53" (1/1) ... [2023-11-12 00:03:53,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:03:53,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:03:53,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:03:53,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:03:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-12 00:03:53,769 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-12 00:03:53,769 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-12 00:03:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:03:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:03:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:03:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:03:53,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:03:53,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:03:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-12 00:03:53,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:03:53,923 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:03:53,924 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:03:54,046 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:03:54,085 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:03:54,085 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:03:54,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:54 BoogieIcfgContainer [2023-11-12 00:03:54,088 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:03:54,089 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:03:54,089 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:03:54,100 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:03:54,101 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:54" (1/1) ... [2023-11-12 00:03:54,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:03:54,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:54,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-12 00:03:54,173 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-12 00:03:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:03:54,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:54,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:03:54,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:03:54,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:03:54,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2023-11-12 00:03:54,464 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-12 00:03:54,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:03:54,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:03:54,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:03:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:03:54,507 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:03:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:03:54,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:03:54,603 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:03:54,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:03:54,648 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-12 00:03:54,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:03:54 ImpRootNode [2023-11-12 00:03:54,707 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:03:54,709 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:03:54,709 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:03:54,709 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:03:54,710 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:03:54" (3/4) ... [2023-11-12 00:03:54,715 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:03:54,717 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:03:54,720 INFO L158 Benchmark]: Toolchain (without parser) took 2512.01ms. Allocated memory is still 165.7MB. Free memory was 121.6MB in the beginning and 60.4MB in the end (delta: 61.2MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2023-11-12 00:03:54,721 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:03:54,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1377.19ms. Allocated memory is still 165.7MB. Free memory was 121.6MB in the beginning and 102.4MB in the end (delta: 19.2MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-11-12 00:03:54,723 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.56ms. Allocated memory is still 165.7MB. Free memory was 102.4MB in the beginning and 100.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:03:54,724 INFO L158 Benchmark]: Boogie Preprocessor took 32.40ms. Allocated memory is still 165.7MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:03:54,725 INFO L158 Benchmark]: RCFGBuilder took 402.35ms. Allocated memory is still 165.7MB. Free memory was 98.2MB in the beginning and 83.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:03:54,726 INFO L158 Benchmark]: CodeCheck took 618.42ms. Allocated memory is still 165.7MB. Free memory was 83.5MB in the beginning and 60.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-12 00:03:54,732 INFO L158 Benchmark]: Witness Printer took 10.01ms. Allocated memory is still 165.7MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:03:54,738 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: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 53 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, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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: 1570]: 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); [L1580] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=28, argc=28, argv={13:18}, argv={13:18}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_predec_16_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE 1 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] EXPR data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554-L1564] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] COND TRUE 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1377.19ms. Allocated memory is still 165.7MB. Free memory was 121.6MB in the beginning and 102.4MB in the end (delta: 19.2MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.56ms. Allocated memory is still 165.7MB. Free memory was 102.4MB in the beginning and 100.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.40ms. Allocated memory is still 165.7MB. Free memory was 100.3MB in the beginning and 98.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 402.35ms. Allocated memory is still 165.7MB. Free memory was 98.2MB in the beginning and 83.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 618.42ms. Allocated memory is still 165.7MB. Free memory was 83.5MB in the beginning and 60.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 10.01ms. Allocated memory is still 165.7MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:03:54,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV --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 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:03:57,447 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:03:57,576 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-12 00:03:57,622 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:03:57,623 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:03:57,624 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:03:57,625 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:03:57,625 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:03:57,626 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:03:57,631 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:03:57,632 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:03:57,632 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:03:57,633 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:03:57,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:03:57,635 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:03:57,635 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:03:57,636 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:03:57,636 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:03:57,637 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:03:57,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:03:57,638 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:03:57,639 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:03:57,639 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:03:57,640 INFO L153 SettingsManager]: * Theory for external solver=AUFBV [2023-11-12 00:03:57,640 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:03:57,641 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-12 00:03:57,641 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:03:57,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:03:57,642 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:03:57,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:03:57,644 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:03:57,645 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:03:57,645 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:03:57,645 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:03:57,646 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-12 00:03:57,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:03:57,646 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_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f771f105ae7d9054a8f880602bab6c07dc6a2f5208d8e293e172fe35f168aa [2023-11-12 00:03:58,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:03:58,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:03:58,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:03:58,112 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:03:58,113 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:03:58,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2023-11-12 00:04:01,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:04:01,714 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:04:01,714 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_16_bad.i [2023-11-12 00:04:01,751 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/data/bbc1136bf/dcf0367a97dc4131a30101c60d391f1e/FLAG8842faf45 [2023-11-12 00:04:01,769 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/data/bbc1136bf/dcf0367a97dc4131a30101c60d391f1e [2023-11-12 00:04:01,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:04:01,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:04:01,780 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:04:01,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:04:01,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:04:01,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:04:01" (1/1) ... [2023-11-12 00:04:01,788 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c41a28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:01, skipping insertion in model container [2023-11-12 00:04:01,788 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:04:01" (1/1) ... [2023-11-12 00:04:01,864 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:04:02,265 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:04:02,802 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:04:02,818 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:04:02,842 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:04:02,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:04:03,137 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:04:03,137 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:04:03,138 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:04:03,138 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:04:03,138 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:04:03,138 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:04:03,146 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:04:03,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03 WrapperNode [2023-11-12 00:04:03,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:04:03,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:04:03,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:04:03,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:04:03,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,220 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,247 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-11-12 00:04:03,248 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:04:03,249 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:04:03,249 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:04:03,249 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:04:03,259 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,260 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,275 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,279 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,282 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,284 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,289 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:04:03,290 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:04:03,290 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:04:03,291 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:04:03,291 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:04:03,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:04:03,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:04:03,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:04:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-12 00:04:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-12 00:04:03,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-12 00:04:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:04:03,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:04:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:04:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:04:03,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:04:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:04:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-12 00:04:03,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-12 00:04:03,579 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:04:03,581 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:04:03,831 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:04:03,911 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:04:03,911 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:04:03,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:04:03 BoogieIcfgContainer [2023-11-12 00:04:03,915 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:04:03,916 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:04:03,917 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:04:03,927 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:04:03,928 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:04:03" (1/1) ... [2023-11-12 00:04:03,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:04:04,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:04:04,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-12 00:04:04,019 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-12 00:04:04,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:04:04,027 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:04:04,028 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:04:04,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/cvc4 [2023-11-12 00:04:04,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:04:04,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-12 00:04:04,105 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Sort RoundingMode not declared at de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:385) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:228) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.sort(WrapperScript.java:228) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.NonDeclaringTermTransferrer.transferSort(NonDeclaringTermTransferrer.java:111) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.DeclarableFunctionSymbol.defineOrDeclare(DeclarableFunctionSymbol.java:159) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:171) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.transferHistoryFromRecord(HistoryRecordingScript.java:196) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.SmtFunctionsAndAxioms.transferAllSymbols(SmtFunctionsAndAxioms.java:156) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.CfgSmtToolkit.createFreshManagedScript(CfgSmtToolkit.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:440) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-12 00:04:04,113 INFO L158 Benchmark]: Toolchain (without parser) took 2332.40ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 43.4MB in the beginning and 47.4MB in the end (delta: -4.0MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2023-11-12 00:04:04,113 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 71.3MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:04:04,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1367.98ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 43.2MB in the beginning and 44.6MB in the end (delta: -1.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. [2023-11-12 00:04:04,115 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.64ms. Allocated memory is still 96.5MB. Free memory was 44.6MB in the beginning and 41.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:04:04,116 INFO L158 Benchmark]: Boogie Preprocessor took 40.78ms. Allocated memory is still 96.5MB. Free memory was 41.4MB in the beginning and 39.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:04:04,117 INFO L158 Benchmark]: RCFGBuilder took 624.86ms. Allocated memory is still 96.5MB. Free memory was 39.4MB in the beginning and 53.1MB in the end (delta: -13.8MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-11-12 00:04:04,118 INFO L158 Benchmark]: CodeCheck took 191.78ms. Allocated memory is still 96.5MB. Free memory was 53.1MB in the beginning and 47.4MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:04:04,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: SMTLIBException: Sort RoundingMode not declared de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: SMTLIBException: Sort RoundingMode not declared: de.uni_freiburg.informatik.ultimate.logic.NoopScript.sort(NoopScript.java:385) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 71.3MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1367.98ms. Allocated memory was 71.3MB in the beginning and 96.5MB in the end (delta: 25.2MB). Free memory was 43.2MB in the beginning and 44.6MB in the end (delta: -1.4MB). Peak memory consumption was 32.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 99.64ms. Allocated memory is still 96.5MB. Free memory was 44.6MB in the beginning and 41.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.78ms. Allocated memory is still 96.5MB. Free memory was 41.4MB in the beginning and 39.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 624.86ms. Allocated memory is still 96.5MB. Free memory was 39.4MB in the beginning and 53.1MB in the end (delta: -13.8MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * CodeCheck took 191.78ms. Allocated memory is still 96.5MB. Free memory was 53.1MB in the beginning and 47.4MB in the end (delta: 5.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-12 00:04:04,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:04:04,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd5c964b-17ed-40e6-9eec-67a337fc0542/bin/ukojak-verify-0OAaufAVZV/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: ERROR: ExceptionOrErrorResult: SMTLIBException: Sort RoundingMode not declared