./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_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_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/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_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/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_ee61401f-6a5b-4280-abe5-f858982f1dbf/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 c7c1e4c64ae68198dc7f28c4d93a61f32362d4adce77ce11970daedd3e31b298 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:07:05,513 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:07:05,639 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-19 03:07:05,645 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:07:05,646 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:07:05,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:07:05,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:07:05,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:07:05,679 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:07:05,680 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:07:05,681 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:07:05,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:07:05,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:07:05,684 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:07:05,685 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:07:05,685 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:07:05,686 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:07:05,687 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:07:05,688 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:07:05,688 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:07:05,689 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:07:05,690 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:07:05,691 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:07:05,691 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:07:05,692 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:07:05,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:07:05,693 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:07:05,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:07:05,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:07:05,695 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:07:05,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:07:05,696 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:07:05,697 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_ee61401f-6a5b-4280-abe5-f858982f1dbf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7c1e4c64ae68198dc7f28c4d93a61f32362d4adce77ce11970daedd3e31b298 [2023-11-19 03:07:06,059 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:07:06,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:07:06,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:07:06,099 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:07:06,100 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:07:06,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i [2023-11-19 03:07:09,560 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:07:10,111 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:07:10,114 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i [2023-11-19 03:07:10,157 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/data/1070574ab/aa63b1e3adae4c0aa2dc682f18ecfd9e/FLAGb96eaa385 [2023-11-19 03:07:10,664 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/data/1070574ab/aa63b1e3adae4c0aa2dc682f18ecfd9e [2023-11-19 03:07:10,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:07:10,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:07:10,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:07:10,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:07:10,677 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:07:10,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:07:10" (1/1) ... [2023-11-19 03:07:10,679 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f453a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:10, skipping insertion in model container [2023-11-19 03:07:10,679 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:07:10" (1/1) ... [2023-11-19 03:07:10,792 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:07:11,380 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:07:12,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:07:12,185 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:07:12,233 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:07:12,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:07:12,443 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:12,443 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:12,443 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:12,444 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:12,444 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:12,444 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:12,452 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:07:12,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12 WrapperNode [2023-11-19 03:07:12,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:07:12,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:07:12,454 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:07:12,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:07:12,463 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,496 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,525 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-19 03:07:12,526 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:07:12,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:07:12,527 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:07:12,527 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:07:12,540 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,584 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,585 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:07:12,590 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:07:12,591 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:07:12,591 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:07:12,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:12" (1/1) ... [2023-11-19 03:07:12,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:07:12,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:07:12,656 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:07:12,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:07:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 03:07:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:07:12,691 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:07:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:07:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 03:07:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:07:12,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:07:12,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:07:12,692 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:07:12,692 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:07:12,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:07:12,868 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:07:12,871 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:07:13,038 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:07:13,114 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:07:13,114 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:07:13,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:13 BoogieIcfgContainer [2023-11-19 03:07:13,124 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:07:13,125 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:07:13,125 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:07:13,134 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:07:13,134 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:13" (1/1) ... [2023-11-19 03:07:13,143 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:07:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:07:13,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-19 03:07:13,205 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-19 03:07:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:07:13,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:07:13,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:07:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:07:13,518 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 03:07:13,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:07:13,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 19 states and 23 transitions. [2023-11-19 03:07:13,567 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-19 03:07:13,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:07:13,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:07:13,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:07:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:13,617 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:07:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:13,726 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:07:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:13,764 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:07:13,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:07:13 ImpRootNode [2023-11-19 03:07:13,807 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:07:13,808 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:07:13,808 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:07:13,808 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:07:13,809 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:13" (3/4) ... [2023-11-19 03:07:13,811 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:07:13,813 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:07:13,814 INFO L158 Benchmark]: Toolchain (without parser) took 3144.70ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 78.4MB in the beginning and 92.4MB in the end (delta: -14.1MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-11-19 03:07:13,815 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 121.6MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:13,816 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1782.76ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 78.4MB in the beginning and 90.1MB in the end (delta: -11.7MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2023-11-19 03:07:13,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.63ms. Allocated memory is still 159.4MB. Free memory was 90.1MB in the beginning and 87.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:07:13,820 INFO L158 Benchmark]: Boogie Preprocessor took 63.07ms. Allocated memory is still 159.4MB. Free memory was 87.1MB in the beginning and 85.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:13,821 INFO L158 Benchmark]: RCFGBuilder took 533.85ms. Allocated memory is still 159.4MB. Free memory was 85.9MB in the beginning and 119.7MB in the end (delta: -33.8MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-19 03:07:13,827 INFO L158 Benchmark]: CodeCheck took 682.27ms. Allocated memory is still 159.4MB. Free memory was 119.7MB in the beginning and 92.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-19 03:07:13,828 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 159.4MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:13,832 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, 19 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, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 17 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [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={18:19}, argv={18:19}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_fgets_multiply_09_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 \read(GLOBAL_CONST_TRUE) [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] [L1566] COND TRUE \read(GLOBAL_CONST_TRUE) 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] [L1568] 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] [L1570] 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 0.35ms. Allocated memory is still 121.6MB. Free memory is still 69.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1782.76ms. Allocated memory was 121.6MB in the beginning and 159.4MB in the end (delta: 37.7MB). Free memory was 78.4MB in the beginning and 90.1MB in the end (delta: -11.7MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.63ms. Allocated memory is still 159.4MB. Free memory was 90.1MB in the beginning and 87.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.07ms. Allocated memory is still 159.4MB. Free memory was 87.1MB in the beginning and 85.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.85ms. Allocated memory is still 159.4MB. Free memory was 85.9MB in the beginning and 119.7MB in the end (delta: -33.8MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * CodeCheck took 682.27ms. Allocated memory is still 159.4MB. Free memory was 119.7MB in the beginning and 92.4MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 159.4MB. Free memory is still 92.4MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:07:13,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/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_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/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_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/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_ee61401f-6a5b-4280-abe5-f858982f1dbf/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 c7c1e4c64ae68198dc7f28c4d93a61f32362d4adce77ce11970daedd3e31b298 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:07:16,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:07:17,086 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-64bit-Kojak_Bitvector.epf [2023-11-19 03:07:17,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:07:17,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:07:17,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:07:17,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:07:17,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:07:17,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:07:17,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:07:17,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:07:17,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:07:17,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:07:17,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:07:17,162 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:07:17,163 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:07:17,163 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 03:07:17,164 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:07:17,164 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 03:07:17,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:07:17,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:07:17,167 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:07:17,167 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:07:17,168 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:07:17,168 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:07:17,169 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:07:17,170 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:07:17,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:07:17,171 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:07:17,171 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:07:17,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:07:17,177 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:07:17,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:07:17,177 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:07:17,178 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:07:17,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:07:17,178 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_ee61401f-6a5b-4280-abe5-f858982f1dbf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7c1e4c64ae68198dc7f28c4d93a61f32362d4adce77ce11970daedd3e31b298 [2023-11-19 03:07:17,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:07:17,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:07:17,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:07:17,706 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:07:17,707 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:07:17,709 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i [2023-11-19 03:07:21,359 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:07:21,876 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:07:21,877 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_09_bad.i [2023-11-19 03:07:21,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/data/878939389/b4261616cc844a6d871168d0b20ed9a5/FLAGc6273c6c8 [2023-11-19 03:07:21,925 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/data/878939389/b4261616cc844a6d871168d0b20ed9a5 [2023-11-19 03:07:21,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:07:21,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:07:21,932 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:07:21,933 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:07:21,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:07:21,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:07:21" (1/1) ... [2023-11-19 03:07:21,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145c0c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:21, skipping insertion in model container [2023-11-19 03:07:21,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:07:21" (1/1) ... [2023-11-19 03:07:22,027 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:07:22,479 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:07:22,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:07:23,004 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:07:23,025 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 03:07:23,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:07:23,387 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:23,387 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:23,387 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:23,387 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:23,388 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:23,388 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 03:07:23,395 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:07:23,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23 WrapperNode [2023-11-19 03:07:23,396 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:07:23,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:07:23,398 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:07:23,398 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:07:23,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,451 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,500 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-19 03:07:23,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:07:23,501 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:07:23,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:07:23,502 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:07:23,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,540 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,566 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,576 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:07:23,577 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:07:23,577 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:07:23,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:07:23,580 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:07:23" (1/1) ... [2023-11-19 03:07:23,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:07:23,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:07:23,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:07:23,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:07:23,667 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-19 03:07:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 03:07:23,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 03:07:23,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:07:23,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:07:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:07:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:07:23,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:07:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:07:23,670 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 03:07:23,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-19 03:07:23,906 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:07:23,909 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:07:24,115 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:07:24,159 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:07:24,160 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:07:24,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:24 BoogieIcfgContainer [2023-11-19 03:07:24,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:07:24,165 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:07:24,165 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:07:24,175 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:07:24,175 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:24" (1/1) ... [2023-11-19 03:07:24,184 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:07:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:07:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-19 03:07:24,239 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-19 03:07:24,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:07:24,243 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:07:24,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:07:24,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:07:24,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:07:24,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:07:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:07:24,383 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:07:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:07:24,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:07:24,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:07:24,462 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 03:07:24,464 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:07:24,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:07:24,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:07:24,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2023-11-19 03:07:24,528 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2023-11-19 03:07:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:07:24,529 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:07:24,529 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:07:24,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:07:24,533 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:07:24,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:07:24,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:24,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:07:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:24,875 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:07:24,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:07:24,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 03:07:24,966 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:07:25,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:07:25 ImpRootNode [2023-11-19 03:07:25,009 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:07:25,009 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:07:25,009 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:07:25,010 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:07:25,010 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:07:24" (3/4) ... [2023-11-19 03:07:25,012 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:07:25,013 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:07:25,014 INFO L158 Benchmark]: Toolchain (without parser) took 3083.14ms. Allocated memory is still 115.3MB. Free memory was 87.6MB in the beginning and 85.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2023-11-19 03:07:25,014 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 75.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:25,015 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1464.77ms. Allocated memory is still 115.3MB. Free memory was 87.3MB in the beginning and 51.0MB in the end (delta: 36.3MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2023-11-19 03:07:25,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 102.54ms. Allocated memory is still 115.3MB. Free memory was 50.5MB in the beginning and 90.0MB in the end (delta: -39.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-11-19 03:07:25,016 INFO L158 Benchmark]: Boogie Preprocessor took 75.24ms. Allocated memory is still 115.3MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:07:25,017 INFO L158 Benchmark]: RCFGBuilder took 587.10ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 70.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-19 03:07:25,018 INFO L158 Benchmark]: CodeCheck took 843.98ms. Allocated memory is still 115.3MB. Free memory was 70.5MB in the beginning and 86.4MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:25,018 INFO L158 Benchmark]: Witness Printer took 3.55ms. Allocated memory is still 115.3MB. Free memory was 86.4MB in the beginning and 85.9MB in the end (delta: 481.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:07:25,022 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 13 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 66 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [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_multiply_09_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 \read(GLOBAL_CONST_TRUE) [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 \read(GLOBAL_CONST_TRUE) 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] [L1568] 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] [L1570] 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 0.85ms. Allocated memory is still 75.5MB. Free memory is still 51.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1464.77ms. Allocated memory is still 115.3MB. Free memory was 87.3MB in the beginning and 51.0MB in the end (delta: 36.3MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 102.54ms. Allocated memory is still 115.3MB. Free memory was 50.5MB in the beginning and 90.0MB in the end (delta: -39.5MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.24ms. Allocated memory is still 115.3MB. Free memory was 90.0MB in the beginning and 87.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.10ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 70.5MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 843.98ms. Allocated memory is still 115.3MB. Free memory was 70.5MB in the beginning and 86.4MB in the end (delta: -15.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.55ms. Allocated memory is still 115.3MB. Free memory was 86.4MB in the beginning and 85.9MB in the end (delta: 481.9kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:07:25,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee61401f-6a5b-4280-abe5-f858982f1dbf/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