./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:46:33,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:46:33,880 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 04:46:33,886 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:46:33,889 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:46:33,933 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:46:33,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:46:33,937 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:46:33,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:46:33,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:46:33,940 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:46:33,940 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:46:33,941 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:46:33,943 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:46:33,943 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:46:33,944 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:46:33,944 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:46:33,945 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:46:33,945 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:46:33,945 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:46:33,946 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:46:33,950 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:46:33,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:46:33,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:46:33,954 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:46:33,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:46:33,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:46:33,966 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:46:33,966 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:46:33,966 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:46:33,967 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:46:33,967 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:46:33,967 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:46:33,968 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:46:33,968 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:46:33,969 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:46:33,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:46:33,971 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:33,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:46:33,972 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:46:33,972 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:46:33,973 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:46:33,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:46:33,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:46:33,974 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:46:33,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:46:33,975 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed [2024-11-09 04:46:34,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:46:34,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:46:34,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:46:34,362 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:46:34,364 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:46:34,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i Unable to find full path for "g++" [2024-11-09 04:46:36,646 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:46:37,161 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:46:37,161 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-11-09 04:46:37,203 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/data/aec3b101f/180de30fc3a042b9884e7782f75296b4/FLAGadadaa5fe [2024-11-09 04:46:37,222 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/data/aec3b101f/180de30fc3a042b9884e7782f75296b4 [2024-11-09 04:46:37,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:46:37,228 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:46:37,229 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:37,230 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:46:37,238 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:46:37,239 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:37" (1/1) ... [2024-11-09 04:46:37,240 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73284782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:37, skipping insertion in model container [2024-11-09 04:46:37,241 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:37" (1/1) ... [2024-11-09 04:46:37,323 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:46:38,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:38,660 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:46:38,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:39,034 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:46:39,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39 WrapperNode [2024-11-09 04:46:39,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:39,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:39,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:46:39,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:46:39,047 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,140 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-09 04:46:39,141 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:39,142 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:46:39,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:46:39,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:46:39,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,162 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,174 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,176 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,187 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:46:39,190 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:46:39,190 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:46:39,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:46:39,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (1/1) ... [2024-11-09 04:46:39,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:39,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:46:39,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:46:39,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:46:39,265 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 04:46:39,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 04:46:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:46:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:46:39,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:46:39,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:46:39,433 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:46:39,435 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:46:39,599 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-09 04:46:39,600 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:46:39,665 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:46:39,666 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:46:39,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:39 BoogieIcfgContainer [2024-11-09 04:46:39,667 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:46:39,670 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:46:39,671 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:46:39,675 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:46:39,676 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:46:37" (1/3) ... [2024-11-09 04:46:39,677 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7656e3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:39, skipping insertion in model container [2024-11-09 04:46:39,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:39" (2/3) ... [2024-11-09 04:46:39,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7656e3cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:39, skipping insertion in model container [2024-11-09 04:46:39,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:39" (3/3) ... [2024-11-09 04:46:39,680 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-11-09 04:46:39,703 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:46:39,704 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 04:46:39,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:46:39,784 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1fc76ca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:46:39,784 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 04:46:39,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:46:39,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 04:46:39,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:39,800 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:46:39,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 04:46:39,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:39,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1025860527, now seen corresponding path program 1 times [2024-11-09 04:46:39,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:46:39,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85689734] [2024-11-09 04:46:39,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:39,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:46:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:46:40,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:46:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:46:40,171 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 04:46:40,174 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:46:40,175 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 04:46:40,178 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 04:46:40,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:46:40,184 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:46:40,218 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:46:40,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:46:40 BoogieIcfgContainer [2024-11-09 04:46:40,223 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:46:40,226 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:46:40,226 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:46:40,227 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:46:40,227 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:39" (3/4) ... [2024-11-09 04:46:40,231 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:46:40,232 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:46:40,234 INFO L158 Benchmark]: Toolchain (without parser) took 3005.88ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 107.2MB in the beginning and 105.1MB in the end (delta: 2.2MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-09 04:46:40,234 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:40,236 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1807.13ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 106.8MB in the beginning and 144.9MB in the end (delta: -38.2MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2024-11-09 04:46:40,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.68ms. Allocated memory is still 188.7MB. Free memory was 144.9MB in the beginning and 141.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:46:40,239 INFO L158 Benchmark]: Boogie Preprocessor took 47.67ms. Allocated memory is still 188.7MB. Free memory was 141.8MB in the beginning and 139.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:46:40,240 INFO L158 Benchmark]: RCFGBuilder took 476.66ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 123.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 04:46:40,241 INFO L158 Benchmark]: TraceAbstraction took 553.30ms. Allocated memory is still 188.7MB. Free memory was 123.9MB in the beginning and 105.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 04:46:40,242 INFO L158 Benchmark]: Witness Printer took 6.36ms. Allocated memory is still 188.7MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:40,246 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1807.13ms. Allocated memory was 142.6MB in the beginning and 188.7MB in the end (delta: 46.1MB). Free memory was 106.8MB in the beginning and 144.9MB in the end (delta: -38.2MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.68ms. Allocated memory is still 188.7MB. Free memory was 144.9MB in the beginning and 141.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.67ms. Allocated memory is still 188.7MB. Free memory was 141.8MB in the beginning and 139.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 476.66ms. Allocated memory is still 188.7MB. Free memory was 139.7MB in the beginning and 123.9MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 553.30ms. Allocated memory is still 188.7MB. Free memory was 123.9MB in the beginning and 105.1MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.36ms. Allocated memory is still 188.7MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_51b_badSink(data) [L1577] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:46:40,297 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:46:43,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:46:43,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 04:46:43,198 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:46:43,199 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:46:43,248 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:46:43,249 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:46:43,249 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:46:43,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:46:43,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:46:43,254 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:46:43,254 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:46:43,255 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:46:43,255 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:46:43,255 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:46:43,256 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:46:43,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:46:43,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:46:43,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:46:43,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:46:43,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:46:43,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:46:43,263 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 04:46:43,264 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 04:46:43,265 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:46:43,266 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:46:43,266 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 04:46:43,266 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:46:43,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:46:43,267 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:46:43,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:46:43,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:46:43,268 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:46:43,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:46:43,269 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:43,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:46:43,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:46:43,270 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:46:43,270 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 04:46:43,271 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 04:46:43,272 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:46:43,285 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:46:43,285 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_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 863300ef352a4db483391d3992b05d2dffba32030335445915b9a52a355666ed [2024-11-09 04:46:43,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:46:43,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:46:43,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:46:43,781 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:46:43,782 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:46:43,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i Unable to find full path for "g++" [2024-11-09 04:46:46,153 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:46:46,551 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:46:46,552 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-11-09 04:46:46,590 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/data/2ed3f3780/002bf29395314dbaaa7cc1a93640b433/FLAGfe58815bb [2024-11-09 04:46:46,611 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/data/2ed3f3780/002bf29395314dbaaa7cc1a93640b433 [2024-11-09 04:46:46,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:46:46,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:46:46,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:46,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:46:46,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:46:46,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:46" (1/1) ... [2024-11-09 04:46:46,624 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ab8491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:46, skipping insertion in model container [2024-11-09 04:46:46,624 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:46:46" (1/1) ... [2024-11-09 04:46:46,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:46:48,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:48,085 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:46:48,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:46:48,360 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:46:48,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48 WrapperNode [2024-11-09 04:46:48,361 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:46:48,362 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:48,362 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:46:48,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:46:48,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,421 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-09 04:46:48,422 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:46:48,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:46:48,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:46:48,423 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:46:48,433 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,437 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,445 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,449 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,451 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,455 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:46:48,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:46:48,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:46:48,456 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:46:48,457 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (1/1) ... [2024-11-09 04:46:48,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:46:48,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:46:48,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:46:48,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:46:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 04:46:48,543 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 04:46:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 04:46:48,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:46:48,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:46:48,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:46:48,753 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:46:48,755 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:46:48,903 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-09 04:46:48,903 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:46:48,915 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:46:48,916 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:46:48,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:48 BoogieIcfgContainer [2024-11-09 04:46:48,916 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:46:48,918 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:46:48,918 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:46:48,922 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:46:48,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:46:46" (1/3) ... [2024-11-09 04:46:48,923 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1734a657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:48, skipping insertion in model container [2024-11-09 04:46:48,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:46:48" (2/3) ... [2024-11-09 04:46:48,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1734a657 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:46:48, skipping insertion in model container [2024-11-09 04:46:48,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:48" (3/3) ... [2024-11-09 04:46:48,925 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_51_bad.i [2024-11-09 04:46:48,944 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:46:48,945 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 04:46:49,013 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:46:49,018 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@67eca851, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:46:49,018 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 04:46:49,022 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 04:46:49,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 04:46:49,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:46:49,029 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:46:49,029 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 04:46:49,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:46:49,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-09 04:46:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 04:46:49,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1421001232] [2024-11-09 04:46:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:46:49,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:46:49,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 04:46:49,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 04:46:49,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 04:46:49,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:46:49,243 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 04:46:49,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 04:46:49,326 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 04:46:49,328 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 04:46:49,330 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 04:46:49,332 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 04:46:49,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 04:46:49,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 04:46:49,538 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 04:46:49,564 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:46:49,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:46:49 BoogieIcfgContainer [2024-11-09 04:46:49,568 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:46:49,569 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:46:49,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:46:49,569 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:46:49,570 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:46:48" (3/4) ... [2024-11-09 04:46:49,573 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 04:46:49,574 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:46:49,575 INFO L158 Benchmark]: Toolchain (without parser) took 2959.62ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 52.4MB in the beginning and 34.8MB in the end (delta: 17.6MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2024-11-09 04:46:49,576 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 77.6MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:49,577 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1744.80ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 52.1MB in the beginning and 43.9MB in the end (delta: 8.2MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2024-11-09 04:46:49,578 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.97ms. Allocated memory is still 94.4MB. Free memory was 43.9MB in the beginning and 40.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:46:49,579 INFO L158 Benchmark]: Boogie Preprocessor took 32.35ms. Allocated memory is still 94.4MB. Free memory was 40.8MB in the beginning and 38.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:46:49,581 INFO L158 Benchmark]: RCFGBuilder took 460.91ms. Allocated memory is still 94.4MB. Free memory was 38.7MB in the beginning and 54.2MB in the end (delta: -15.4MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-09 04:46:49,582 INFO L158 Benchmark]: TraceAbstraction took 649.72ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 35.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 04:46:49,584 INFO L158 Benchmark]: Witness Printer took 5.17ms. Allocated memory is still 94.4MB. Free memory was 35.3MB in the beginning and 34.8MB in the end (delta: 531.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:46:49,592 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 77.6MB. Free memory was 53.5MB in the beginning and 53.4MB in the end (delta: 94.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1744.80ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 52.1MB in the beginning and 43.9MB in the end (delta: 8.2MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.97ms. Allocated memory is still 94.4MB. Free memory was 43.9MB in the beginning and 40.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.35ms. Allocated memory is still 94.4MB. Free memory was 40.8MB in the beginning and 38.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 460.91ms. Allocated memory is still 94.4MB. Free memory was 38.7MB in the beginning and 54.2MB in the end (delta: -15.4MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 649.72ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 35.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.17ms. Allocated memory is still 94.4MB. Free memory was 35.3MB in the beginning and 34.8MB in the end (delta: 531.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_postdec_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; 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] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_postdec_51b_badSink(data) [L1577] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 04:46:49,643 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0eab62e-8ee6-4917-9de9-728fc08f86c6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample