./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9 --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 dddfccd8da9f12f34e194b4a9fc4c4f6991db16bc01a02bc13eca415e127610f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:09:58,418 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:09:58,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 00:09:58,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:09:58,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:09:58,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:09:58,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:09:58,512 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:09:58,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:09:58,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:09:58,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:09:58,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:09:58,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:09:58,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:09:58,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:09:58,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:09:58,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:09:58,518 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 00:09:58,518 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:09:58,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:09:58,519 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:09:58,520 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:09:58,520 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:09:58,521 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:09:58,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:09:58,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:09:58,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:09:58,523 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:09:58,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:09:58,524 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:09:58,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:09:58,524 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:09:58,525 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_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dddfccd8da9f12f34e194b4a9fc4c4f6991db16bc01a02bc13eca415e127610f [2023-12-03 00:09:58,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:09:58,763 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:09:58,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:09:58,767 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:09:58,767 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:09:58,768 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2023-12-03 00:10:01,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:10:01,934 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:10:01,935 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2023-12-03 00:10:01,958 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/data/0beff541c/6cf93a96b676446b81d5a5e7f7808365/FLAG41f9c8b2f [2023-12-03 00:10:01,973 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/data/0beff541c/6cf93a96b676446b81d5a5e7f7808365 [2023-12-03 00:10:01,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:10:01,978 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:10:01,979 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:10:01,979 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:10:01,983 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:10:01,984 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:10:01" (1/1) ... [2023-12-03 00:10:01,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61615986 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:01, skipping insertion in model container [2023-12-03 00:10:01,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:10:01" (1/1) ... [2023-12-03 00:10:02,051 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:10:02,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:10:02,973 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:10:03,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:10:03,259 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:03,259 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:03,259 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:03,260 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:03,260 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:03,267 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:10:03,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03 WrapperNode [2023-12-03 00:10:03,268 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:10:03,269 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:10:03,269 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:10:03,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:10:03,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,305 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,331 INFO L138 Inliner]: procedures = 499, calls = 68, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2023-12-03 00:10:03,332 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:10:03,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:10:03,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:10:03,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:10:03,343 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,343 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,355 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,357 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,360 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,362 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:10:03,363 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:10:03,363 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:10:03,363 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:10:03,364 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:10:03,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:10:03,398 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:10:03,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:10:03,436 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 00:10:03,437 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 00:10:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 00:10:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-12-03 00:10:03,437 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-12-03 00:10:03,437 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 00:10:03,438 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 00:10:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:10:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-03 00:10:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:10:03,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:10:03,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:10:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:10:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 00:10:03,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:10:03,598 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:10:03,601 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:10:03,753 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:10:03,795 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:10:03,795 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:10:03,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:10:03 BoogieIcfgContainer [2023-12-03 00:10:03,797 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:10:03,798 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:10:03,798 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:10:03,807 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:10:03,807 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:10:03" (1/1) ... [2023-12-03 00:10:03,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:10:03,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:03,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 40 states and 50 transitions. [2023-12-03 00:10:03,870 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2023-12-03 00:10:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:10:03,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:10:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:04,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:10:04,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:04,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 45 states and 58 transitions. [2023-12-03 00:10:04,262 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 58 transitions. [2023-12-03 00:10:04,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 00:10:04,263 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:04,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:10:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:10:04,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:04,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 48 states and 61 transitions. [2023-12-03 00:10:04,395 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2023-12-03 00:10:04,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 00:10:04,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:04,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:10:04,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:04,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:10:04,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:04,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 54 states and 70 transitions. [2023-12-03 00:10:04,551 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2023-12-03 00:10:04,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 00:10:04,553 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:04,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:10:04,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:10:04,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:04,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 58 states and 74 transitions. [2023-12-03 00:10:04,648 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2023-12-03 00:10:04,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 00:10:04,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:04,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:10:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:10:04,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:10:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:10:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:10:04,779 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:10:04,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:10:04,826 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 5 iterations. [2023-12-03 00:10:04,858 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet105 [2023-12-03 00:10:04,861 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated [2023-12-03 00:10:04,862 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret102 could not be translated [2023-12-03 00:10:04,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:10:04 ImpRootNode [2023-12-03 00:10:04,868 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:10:04,869 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:10:04,869 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:10:04,869 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:10:04,870 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:10:03" (3/4) ... [2023-12-03 00:10:04,872 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 00:10:04,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:10:04,874 INFO L158 Benchmark]: Toolchain (without parser) took 2896.34ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 87.3MB in the beginning and 89.9MB in the end (delta: -2.5MB). Peak memory consumption was 36.3MB. Max. memory is 16.1GB. [2023-12-03 00:10:04,875 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:10:04,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1288.91ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 87.1MB in the beginning and 111.7MB in the end (delta: -24.6MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. [2023-12-03 00:10:04,876 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.28ms. Allocated memory is still 174.1MB. Free memory was 111.7MB in the beginning and 109.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:10:04,877 INFO L158 Benchmark]: Boogie Preprocessor took 30.06ms. Allocated memory is still 174.1MB. Free memory was 109.3MB in the beginning and 107.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:10:04,878 INFO L158 Benchmark]: RCFGBuilder took 434.30ms. Allocated memory is still 174.1MB. Free memory was 107.5MB in the beginning and 90.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 00:10:04,878 INFO L158 Benchmark]: CodeCheck took 1070.26ms. Allocated memory is still 174.1MB. Free memory was 90.8MB in the beginning and 89.9MB in the end (delta: 902.2kB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2023-12-03 00:10:04,879 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 174.1MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:10:04,882 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 4 procedures, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 202 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 164 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 56 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 148 IncrementalHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 108 mSDtfsCounter, 148 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 512 GetRequests, 500 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 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, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 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: 1574]: 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, overapproximation of large string literal at line 1597. 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); [L1597] 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={5:0}] [L1414] COND TRUE line != ((void *)0) [L1597] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=18, argc=18, argv={12:13}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1598] CALL CWE191_Integer_Underflow__int_fgets_multiply_12_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] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() 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 globalReturnsTrueOrFalse() [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=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] COND TRUE globalReturnsTrueOrFalse() [L1572] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 138.4MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1288.91ms. Allocated memory was 138.4MB in the beginning and 174.1MB in the end (delta: 35.7MB). Free memory was 87.1MB in the beginning and 111.7MB in the end (delta: -24.6MB). Peak memory consumption was 51.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.28ms. Allocated memory is still 174.1MB. Free memory was 111.7MB in the beginning and 109.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.06ms. Allocated memory is still 174.1MB. Free memory was 109.3MB in the beginning and 107.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 434.30ms. Allocated memory is still 174.1MB. Free memory was 107.5MB in the beginning and 90.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1070.26ms. Allocated memory is still 174.1MB. Free memory was 90.8MB in the beginning and 89.9MB in the end (delta: 902.2kB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 174.1MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet105 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret102 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 00:10:04,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/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_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9 --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 dddfccd8da9f12f34e194b4a9fc4c4f6991db16bc01a02bc13eca415e127610f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:10:06,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:10:07,015 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-12-03 00:10:07,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:10:07,048 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:10:07,048 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:10:07,049 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:10:07,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:10:07,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:10:07,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:10:07,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:10:07,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:10:07,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:10:07,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:10:07,054 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:10:07,054 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:10:07,055 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 00:10:07,055 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:10:07,056 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 00:10:07,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:10:07,057 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:10:07,058 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:10:07,058 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:10:07,059 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:10:07,059 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:10:07,060 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:10:07,060 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:10:07,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:10:07,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:10:07,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:10:07,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:10:07,062 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:10:07,063 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:10:07,063 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:10:07,063 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:10:07,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:10:07,064 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_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dddfccd8da9f12f34e194b4a9fc4c4f6991db16bc01a02bc13eca415e127610f [2023-12-03 00:10:07,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:10:07,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:10:07,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:10:07,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:10:07,397 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:10:07,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2023-12-03 00:10:10,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:10:10,704 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:10:10,704 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_12_bad.i [2023-12-03 00:10:10,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/data/1ee94d5a2/48daa8252f8645df8f15f76f95a4164f/FLAG3ad10323b [2023-12-03 00:10:10,745 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/data/1ee94d5a2/48daa8252f8645df8f15f76f95a4164f [2023-12-03 00:10:10,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:10:10,749 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:10:10,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:10:10,751 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:10:10,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:10:10,757 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:10:10" (1/1) ... [2023-12-03 00:10:10,758 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48249ef4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:10, skipping insertion in model container [2023-12-03 00:10:10,758 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:10:10" (1/1) ... [2023-12-03 00:10:10,834 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:10:11,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:10:11,725 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:10:11,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:10:11,948 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:11,949 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:11,949 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:11,949 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:11,949 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 00:10:11,957 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:10:11,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11 WrapperNode [2023-12-03 00:10:11,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:10:11,959 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:10:11,959 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:10:11,959 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:10:11,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:11,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,020 INFO L138 Inliner]: procedures = 504, calls = 68, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2023-12-03 00:10:12,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:10:12,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:10:12,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:10:12,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:10:12,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,045 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,053 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:10:12,059 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:10:12,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:10:12,060 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:10:12,060 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:10:11" (1/1) ... [2023-12-03 00:10:12,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:10:12,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:10:12,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:10:12,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:10:12,126 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-03 00:10:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-03 00:10:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-12-03 00:10:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-12-03 00:10:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-12-03 00:10:12,127 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-03 00:10:12,127 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-03 00:10:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 00:10:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:10:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:10:12,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:10:12,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:10:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 00:10:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-03 00:10:12,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-12-03 00:10:12,286 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:10:12,288 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:10:12,447 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:10:12,487 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:10:12,488 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:10:12,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:10:12 BoogieIcfgContainer [2023-12-03 00:10:12,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:10:12,491 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:10:12,502 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:10:12,509 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:10:12,510 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:10:12" (1/1) ... [2023-12-03 00:10:12,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:10:12,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:12,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 38 states and 48 transitions. [2023-12-03 00:10:12,565 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2023-12-03 00:10:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 00:10:12,569 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:12,569 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:10:12,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:10:12,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:10:12,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 00:10:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:12,752 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:10:12,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:12,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 00:10:12,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:10:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:10:12,850 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 00:10:12,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 00:10:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 42 states and 55 transitions. [2023-12-03 00:10:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 55 transitions. [2023-12-03 00:10:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 00:10:12,910 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:12,910 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:10:12,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:10:12,912 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:10:12,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 00:10:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:13,061 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:10:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:13,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 00:10:13,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:10:13,115 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:10:13,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 00:10:13,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 41 states and 54 transitions. [2023-12-03 00:10:13,173 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2023-12-03 00:10:13,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-03 00:10:13,174 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:13,174 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:10:13,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:10:13,175 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:10:13,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 00:10:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:13,325 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:10:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:10:13,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-03 00:10:13,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:10:13,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 00:10:13,368 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 00:10:13,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:10:13,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 42 states and 56 transitions. [2023-12-03 00:10:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2023-12-03 00:10:13,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 00:10:13,393 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:10:13,393 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:10:13,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:10:13,394 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:10:13,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 00:10:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:10:13,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:10:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:10:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:10:13,781 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:10:13,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:10:13,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-03 00:10:13,848 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2023-12-03 00:10:13,875 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet103 [2023-12-03 00:10:13,878 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated [2023-12-03 00:10:13,879 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret100 could not be translated [2023-12-03 00:10:13,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:10:13 ImpRootNode [2023-12-03 00:10:13,883 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:10:13,884 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:10:13,884 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:10:13,884 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:10:13,885 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:10:12" (3/4) ... [2023-12-03 00:10:13,886 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 00:10:13,887 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:10:13,888 INFO L158 Benchmark]: Toolchain (without parser) took 3138.68ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 71.5MB in the beginning and 67.6MB in the end (delta: 3.9MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-12-03 00:10:13,888 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 69.2MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:10:13,889 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1208.05ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 63.0MB in the end (delta: 8.2MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2023-12-03 00:10:13,889 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.88ms. Allocated memory is still 98.6MB. Free memory was 63.0MB in the beginning and 59.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:10:13,890 INFO L158 Benchmark]: Boogie Preprocessor took 37.31ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 57.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:10:13,891 INFO L158 Benchmark]: RCFGBuilder took 430.57ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 38.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-03 00:10:13,891 INFO L158 Benchmark]: CodeCheck took 1392.84ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 38.9MB in the beginning and 68.2MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:10:13,892 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 119.5MB. Free memory was 68.2MB in the beginning and 67.6MB in the end (delta: 642.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:10:13,895 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 4 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 73 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 350 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 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, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 188 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 6/6 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: 1574]: 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, overapproximation of large string literal at line 1597. 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); [L1597] 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={5:0}] [L1414] COND TRUE line != ((void *)0) [L1597] 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}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1598] CALL CWE191_Integer_Underflow__int_fgets_multiply_12_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] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() 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 globalReturnsTrueOrFalse() [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] [L1570] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1570] RET globalReturnsTrueOrFalse() 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] COND TRUE globalReturnsTrueOrFalse() [L1572] COND TRUE data < 0 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] [L1574] data * 2 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 0.26ms. Allocated memory is still 69.2MB. Free memory is still 46.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1208.05ms. Allocated memory is still 98.6MB. Free memory was 71.3MB in the beginning and 63.0MB in the end (delta: 8.2MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.88ms. Allocated memory is still 98.6MB. Free memory was 63.0MB in the beginning and 59.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.31ms. Allocated memory is still 98.6MB. Free memory was 59.9MB in the beginning and 57.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.57ms. Allocated memory is still 98.6MB. Free memory was 57.8MB in the beginning and 38.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 1392.84ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 38.9MB in the beginning and 68.2MB in the end (delta: -29.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 119.5MB. Free memory was 68.2MB in the beginning and 67.6MB in the end (delta: 642.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet103 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret100 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 00:10:13,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f088bbc-e19c-4c30-aaaa-d36ea18b141b/bin/ukojak-verify-Qdu7aM0XO9/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