./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL --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 156cc870dda331547ca89e59309b05cf08363cb4a8600f15a9d865791b5cc144 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:37:57,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:37:57,733 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:37:57,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:37:57,746 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:37:57,792 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:37:57,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:37:57,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:37:57,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:37:57,802 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:37:57,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:37:57,805 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:37:57,805 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:37:57,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:37:57,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:37:57,809 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:37:57,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:37:57,810 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:37:57,811 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:37:57,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:37:57,812 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:37:57,813 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:37:57,814 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:37:57,814 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:37:57,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:37:57,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:37:57,817 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:37:57,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:37:57,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:37:57,819 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:37:57,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:37:57,821 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:37:57,821 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_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156cc870dda331547ca89e59309b05cf08363cb4a8600f15a9d865791b5cc144 [2023-11-19 03:37:58,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:37:58,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:37:58,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:37:58,209 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:37:58,209 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:37:58,211 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i [2023-11-19 03:38:01,493 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:38:01,905 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:38:01,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i [2023-11-19 03:38:01,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/data/1fdc2ceae/ad5408b24c474e26982e799c47d601c9/FLAG8e92f43ad [2023-11-19 03:38:01,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/data/1fdc2ceae/ad5408b24c474e26982e799c47d601c9 [2023-11-19 03:38:01,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:38:01,960 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:38:01,961 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:01,962 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:38:01,967 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:38:01,968 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:01" (1/1) ... [2023-11-19 03:38:01,970 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3298a4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:01, skipping insertion in model container [2023-11-19 03:38:01,970 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:01" (1/1) ... [2023-11-19 03:38:02,065 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:38:02,478 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:38:03,138 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:38:03,158 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:38:03,213 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:38:03,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:38:03,516 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:03,516 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:03,517 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:03,517 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:03,517 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:03,517 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:03,527 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:38:03,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03 WrapperNode [2023-11-19 03:38:03,528 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:03,530 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:38:03,530 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:38:03,530 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:38:03,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,590 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,645 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2023-11-19 03:38:03,646 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:38:03,647 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:38:03,647 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:38:03,647 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:38:03,659 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,676 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,694 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,696 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,700 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:38:03,701 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:38:03,702 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:38:03,702 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:38:03,703 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:03" (1/1) ... [2023-11-19 03:38:03,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:38:03,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:38:03,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:38:03,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:38:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 03:38:03,800 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:38:03,801 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:38:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:38:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 03:38:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:38:03,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:38:03,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:38:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:38:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:38:03,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:38:03,977 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:38:03,979 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:38:04,183 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:38:04,238 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:38:04,238 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:38:04,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:04 BoogieIcfgContainer [2023-11-19 03:38:04,243 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:38:04,244 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:38:04,245 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:38:04,257 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:38:04,257 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:04" (1/1) ... [2023-11-19 03:38:04,268 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:38:04,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:04,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-19 03:38:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-19 03:38:04,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:38:04,341 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:04,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:04,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:38:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:04,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 21 transitions. [2023-11-19 03:38:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2023-11-19 03:38:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:38:04,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:04,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:38:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:38:04,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:38:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:38:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:38:04,827 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:38:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:38:04,863 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:38:04,895 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post100 could not be translated [2023-11-19 03:38:04,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:38:04 ImpRootNode [2023-11-19 03:38:04,901 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:38:04,902 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:38:04,902 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:38:04,902 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:38:04,903 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:04" (3/4) ... [2023-11-19 03:38:04,905 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:38:04,906 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:38:04,907 INFO L158 Benchmark]: Toolchain (without parser) took 2947.32ms. Allocated memory was 123.7MB in the beginning and 176.2MB in the end (delta: 52.4MB). Free memory was 74.7MB in the beginning and 110.6MB in the end (delta: -35.8MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-11-19 03:38:04,908 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 123.7MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:38:04,909 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1567.14ms. Allocated memory was 123.7MB in the beginning and 176.2MB in the end (delta: 52.4MB). Free memory was 74.7MB in the beginning and 102.9MB in the end (delta: -28.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2023-11-19 03:38:04,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.39ms. Allocated memory is still 176.2MB. Free memory was 102.9MB in the beginning and 100.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:38:04,911 INFO L158 Benchmark]: Boogie Preprocessor took 53.88ms. Allocated memory is still 176.2MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:38:04,911 INFO L158 Benchmark]: RCFGBuilder took 542.29ms. Allocated memory is still 176.2MB. Free memory was 97.9MB in the beginning and 136.8MB in the end (delta: -38.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:38:04,912 INFO L158 Benchmark]: CodeCheck took 656.30ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 111.5MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 03:38:04,913 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 176.2MB. Free memory was 111.5MB in the beginning and 110.6MB in the end (delta: 924.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:38:04,917 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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: 1569]: 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={18:27}, argv={18:27}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_14_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 globalFive==5 [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] [L1566] COND TRUE globalFive==5 [L1569] 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 0.35ms. Allocated memory is still 123.7MB. Free memory is still 71.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1567.14ms. Allocated memory was 123.7MB in the beginning and 176.2MB in the end (delta: 52.4MB). Free memory was 74.7MB in the beginning and 102.9MB in the end (delta: -28.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.39ms. Allocated memory is still 176.2MB. Free memory was 102.9MB in the beginning and 100.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.88ms. Allocated memory is still 176.2MB. Free memory was 100.0MB in the beginning and 97.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.29ms. Allocated memory is still 176.2MB. Free memory was 97.9MB in the beginning and 136.8MB in the end (delta: -38.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 656.30ms. Allocated memory is still 176.2MB. Free memory was 136.8MB in the beginning and 111.5MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 176.2MB. Free memory was 111.5MB in the beginning and 110.6MB in the end (delta: 924.2kB). 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: IdentifierExpression #t~post100 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 [2023-11-19 03:38:04,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/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_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL --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 156cc870dda331547ca89e59309b05cf08363cb4a8600f15a9d865791b5cc144 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:38:07,791 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:38:07,943 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 03:38:07,986 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:38:07,987 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:38:07,987 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:38:07,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:38:07,989 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:38:07,990 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:38:07,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:38:07,995 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:38:07,996 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:38:07,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:38:07,998 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:38:07,998 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:38:07,999 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:38:07,999 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:38:08,000 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:38:08,001 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:38:08,002 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:38:08,002 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:38:08,003 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:38:08,004 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:38:08,004 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:38:08,004 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:38:08,005 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:38:08,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:38:08,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:38:08,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:38:08,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:38:08,008 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:38:08,008 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:38:08,008 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:38:08,009 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:38:08,009 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:38:08,009 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:38:08,010 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_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156cc870dda331547ca89e59309b05cf08363cb4a8600f15a9d865791b5cc144 [2023-11-19 03:38:08,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:38:08,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:38:08,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:38:08,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:38:08,476 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:38:08,477 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i [2023-11-19 03:38:11,639 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:38:12,169 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:38:12,170 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_14_bad.i [2023-11-19 03:38:12,212 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/data/418cdcd00/15b631cc5ba344b484f897c27654a697/FLAG66846b0a7 [2023-11-19 03:38:12,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/data/418cdcd00/15b631cc5ba344b484f897c27654a697 [2023-11-19 03:38:12,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:38:12,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:38:12,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:12,250 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:38:12,256 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:38:12,257 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:12" (1/1) ... [2023-11-19 03:38:12,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a011dba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:12, skipping insertion in model container [2023-11-19 03:38:12,259 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:38:12" (1/1) ... [2023-11-19 03:38:12,364 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:38:12,820 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:38:13,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:38:13,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:38:13,488 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:38:13,578 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:38:13,705 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:13,705 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:13,705 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:13,705 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:13,705 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:13,706 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:38:13,714 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:38:13,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13 WrapperNode [2023-11-19 03:38:13,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:38:13,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:38:13,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:38:13,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:38:13,724 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,804 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-19 03:38:13,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:38:13,805 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:38:13,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:38:13,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:38:13,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,832 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,834 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,838 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,840 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:38:13,847 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:38:13,847 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:38:13,847 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:38:13,848 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:38:13" (1/1) ... [2023-11-19 03:38:13,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:38:13,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:38:13,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:38:13,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:38:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 03:38:13,947 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:38:13,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:38:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:38:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:38:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:38:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:38:13,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:38:13,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:38:13,949 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:38:13,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 03:38:14,218 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:38:14,225 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:38:14,454 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:38:14,498 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:38:14,498 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:38:14,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:14 BoogieIcfgContainer [2023-11-19 03:38:14,511 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:38:14,512 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:38:14,512 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:38:14,524 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:38:14,524 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:14" (1/1) ... [2023-11-19 03:38:14,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:38:14,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:14,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-19 03:38:14,626 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-19 03:38:14,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:38:14,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:14,634 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:38:14,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:38:14,637 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:38:14,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:38:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:14,832 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:38:14,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:38:14,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:38:14,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:38:14,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:38:14,943 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:38:14,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:38:15,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:38:15,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 26 transitions. [2023-11-19 03:38:15,058 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2023-11-19 03:38:15,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:38:15,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:38:15,061 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:38:15,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:38:15,063 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:38:15,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:38:15,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:38:15,267 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:38:15,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:38:15,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:38:15,495 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:38:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:38:15,556 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:38:15,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 03:38:15,558 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:38:15,594 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post98 could not be translated [2023-11-19 03:38:15,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:38:15 ImpRootNode [2023-11-19 03:38:15,600 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:38:15,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:38:15,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:38:15,601 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:38:15,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:38:14" (3/4) ... [2023-11-19 03:38:15,605 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:38:15,606 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:38:15,608 INFO L158 Benchmark]: Toolchain (without parser) took 3364.21ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 77.9MB in the beginning and 91.5MB in the end (delta: -13.6MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-11-19 03:38:15,608 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 75.5MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:38:15,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1465.98ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 63.7MB in the end (delta: 14.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2023-11-19 03:38:15,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.51ms. Allocated memory is still 104.9MB. Free memory was 63.7MB in the beginning and 60.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:38:15,611 INFO L158 Benchmark]: Boogie Preprocessor took 41.38ms. Allocated memory is still 104.9MB. Free memory was 60.4MB in the beginning and 58.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:38:15,612 INFO L158 Benchmark]: RCFGBuilder took 663.85ms. Allocated memory is still 104.9MB. Free memory was 58.3MB in the beginning and 68.9MB in the end (delta: -10.6MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2023-11-19 03:38:15,613 INFO L158 Benchmark]: CodeCheck took 1088.45ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 68.9MB in the beginning and 92.2MB in the end (delta: -23.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:38:15,614 INFO L158 Benchmark]: Witness Printer took 5.81ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 91.5MB in the end (delta: 661.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:38:15,618 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: 1.0s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 17 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1569]: 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); [L1578] 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) [L1578] 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}, argv={0:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_postdec_14_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 globalFive==5 [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] [L1566] COND TRUE globalFive==5 [L1569] 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 0.29ms. Allocated memory is still 75.5MB. Free memory is still 52.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1465.98ms. Allocated memory is still 104.9MB. Free memory was 77.7MB in the beginning and 63.7MB in the end (delta: 14.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.51ms. Allocated memory is still 104.9MB. Free memory was 63.7MB in the beginning and 60.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.38ms. Allocated memory is still 104.9MB. Free memory was 60.4MB in the beginning and 58.8MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 663.85ms. Allocated memory is still 104.9MB. Free memory was 58.3MB in the beginning and 68.9MB in the end (delta: -10.6MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * CodeCheck took 1088.45ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 68.9MB in the beginning and 92.2MB in the end (delta: -23.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.81ms. Allocated memory is still 125.8MB. Free memory was 92.2MB in the beginning and 91.5MB in the end (delta: 661.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post98 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 [2023-11-19 03:38:15,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb8c8242-7e24-465e-b732-724d1b4d2a3c/bin/ukojak-verify-G8NBE6pJGL/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