./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:20:59,787 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:20:59,923 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 19:20:59,930 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:20:59,930 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:20:59,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:20:59,984 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:20:59,984 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:20:59,985 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:20:59,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:20:59,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:20:59,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:20:59,988 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:20:59,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:20:59,991 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:20:59,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:20:59,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:20:59,992 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:20:59,992 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:20:59,993 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:20:59,993 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:20:59,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:20:59,998 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:20:59,998 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:20:59,998 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:20:59,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:20:59,999 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:20:59,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:20:59,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:21:00,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:21:00,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:21:00,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:21:00,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:21:00,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:21:00,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:21:00,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:21:00,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:21:00,005 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:21:00,005 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:21:00,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:21:00,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:21:00,007 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2 [2024-11-08 19:21:00,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:21:00,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:21:00,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:21:00,403 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:21:00,403 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:21:00,405 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i Unable to find full path for "g++" [2024-11-08 19:21:02,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:21:02,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:21:02,950 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2024-11-08 19:21:02,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/data/d3e273540/9aa75113f57b40f1ba32e0f3d2acfc36/FLAG7cb5a1913 [2024-11-08 19:21:03,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/data/d3e273540/9aa75113f57b40f1ba32e0f3d2acfc36 [2024-11-08 19:21:03,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:21:03,018 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:21:03,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:21:03,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:21:03,027 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:21:03,029 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:21:03" (1/1) ... [2024-11-08 19:21:03,031 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15171088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:03, skipping insertion in model container [2024-11-08 19:21:03,031 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:21:03" (1/1) ... [2024-11-08 19:21:03,111 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:21:04,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:21:04,337 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:21:04,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:21:04,629 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:21:04,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04 WrapperNode [2024-11-08 19:21:04,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:21:04,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:21:04,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:21:04,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:21:04,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,675 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,707 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 73 [2024-11-08 19:21:04,709 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:21:04,710 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:21:04,711 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:21:04,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:21:04,725 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,728 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,756 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-08 19:21:04,756 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,757 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,765 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,771 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:21:04,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:21:04,776 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:21:04,776 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:21:04,777 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (1/1) ... [2024-11-08 19:21:04,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:21:04,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:21:04,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:21:04,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:21:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:21:04,939 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:21:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:21:04,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:21:04,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:21:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:21:05,097 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:21:05,100 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:21:05,234 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-08 19:21:05,234 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:21:05,252 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:21:05,254 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:21:05,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:21:05 BoogieIcfgContainer [2024-11-08 19:21:05,255 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:21:05,259 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:21:05,260 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:21:05,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:21:05,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:21:03" (1/3) ... [2024-11-08 19:21:05,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431e4516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:21:05, skipping insertion in model container [2024-11-08 19:21:05,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:04" (2/3) ... [2024-11-08 19:21:05,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431e4516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:21:05, skipping insertion in model container [2024-11-08 19:21:05,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:21:05" (3/3) ... [2024-11-08 19:21:05,271 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2024-11-08 19:21:05,287 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:21:05,287 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:21:05,354 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:21:05,361 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=PETRI_NET, 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;@4035c341, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:21:05,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:21:05,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 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) [2024-11-08 19:21:05,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 19:21:05,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:05,378 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:05,378 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 19:21:05,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:05,385 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times [2024-11-08 19:21:05,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:21:05,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396519088] [2024-11-08 19:21:05,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:05,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:21:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:21:05,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:21:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:21:05,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:21:05,690 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:21:05,693 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 19:21:05,695 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 19:21:05,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:21:05,700 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 19:21:05,736 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:21:05,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:21:05 BoogieIcfgContainer [2024-11-08 19:21:05,740 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:21:05,741 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:21:05,742 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:21:05,742 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:21:05,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:21:05" (3/4) ... [2024-11-08 19:21:05,746 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:21:05,747 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:21:05,749 INFO L158 Benchmark]: Toolchain (without parser) took 2730.26ms. Allocated memory is still 151.0MB. Free memory was 118.9MB in the beginning and 84.7MB in the end (delta: 34.2MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2024-11-08 19:21:05,750 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:21:05,751 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1610.30ms. Allocated memory is still 151.0MB. Free memory was 118.9MB in the beginning and 99.1MB in the end (delta: 19.8MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2024-11-08 19:21:05,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.52ms. Allocated memory is still 151.0MB. Free memory was 99.1MB in the beginning and 96.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:21:05,753 INFO L158 Benchmark]: Boogie Preprocessor took 64.28ms. Allocated memory is still 151.0MB. Free memory was 96.2MB in the beginning and 93.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:21:05,754 INFO L158 Benchmark]: RCFGBuilder took 479.71ms. Allocated memory is still 151.0MB. Free memory was 93.3MB in the beginning and 104.7MB in the end (delta: -11.5MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2024-11-08 19:21:05,756 INFO L158 Benchmark]: TraceAbstraction took 481.92ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 84.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 19:21:05,757 INFO L158 Benchmark]: Witness Printer took 6.42ms. Allocated memory is still 151.0MB. Free memory was 84.9MB in the beginning and 84.7MB in the end (delta: 241.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:21:05,761 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 123.7MB. Free memory is still 96.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1610.30ms. Allocated memory is still 151.0MB. Free memory was 118.9MB in the beginning and 99.1MB in the end (delta: 19.8MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.52ms. Allocated memory is still 151.0MB. Free memory was 99.1MB in the beginning and 96.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.28ms. Allocated memory is still 151.0MB. Free memory was 96.2MB in the beginning and 93.3MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.71ms. Allocated memory is still 151.0MB. Free memory was 93.3MB in the beginning and 104.7MB in the end (delta: -11.5MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. * TraceAbstraction took 481.92ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 84.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.42ms. Allocated memory is still 151.0MB. Free memory was 84.9MB in the beginning and 84.7MB in the end (delta: 241.3kB). 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1570, overapproximation of fgets at line 1556. 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] [L1570] 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) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_fgets_postdec_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_postdec_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CALL funcPtr(data) [L1578] 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: 1578]: 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, 25 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=25occurred 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 [2024-11-08 19:21:05,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:21:08,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:21:08,520 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 19:21:08,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:21:08,526 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:21:08,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 19:21:08,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:21:08,552 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:21:08,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:21:08,553 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:21:08,554 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:21:08,554 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:21:08,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:21:08,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:21:08,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:21:08,556 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:21:08,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:21:08,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:21:08,557 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:21:08,560 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:21:08,560 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:21:08,561 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:21:08,561 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:21:08,565 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:21:08,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:21:08,566 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:21:08,566 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:21:08,567 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:21:08,567 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:21:08,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:21:08,568 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:21:08,568 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:21:08,568 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:21:08,569 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:21:08,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:21:08,571 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:21:08,571 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:21:08,572 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:21:08,572 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 19:21:08,572 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:21:08,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:21:08,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:21:08,573 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:21:08,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:21:08,574 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> addf942ede46230b25a4dc028edf6be01eaa699ab60b65838943e2936aa69ff2 [2024-11-08 19:21:08,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:21:09,024 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:21:09,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:21:09,030 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:21:09,030 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:21:09,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i Unable to find full path for "g++" [2024-11-08 19:21:11,115 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:21:11,559 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:21:11,560 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2024-11-08 19:21:11,587 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/data/4a299c59c/db9e4b90bd404cb0b98a80d990b80e13/FLAGaf34b235d [2024-11-08 19:21:11,690 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/data/4a299c59c/db9e4b90bd404cb0b98a80d990b80e13 [2024-11-08 19:21:11,693 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:21:11,694 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:21:11,696 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:21:11,696 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:21:11,706 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:21:11,707 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:21:11" (1/1) ... [2024-11-08 19:21:11,708 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e7181f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:11, skipping insertion in model container [2024-11-08 19:21:11,708 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:21:11" (1/1) ... [2024-11-08 19:21:11,780 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:21:13,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:21:13,133 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:21:13,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:21:13,461 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:21:13,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13 WrapperNode [2024-11-08 19:21:13,462 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:21:13,464 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:21:13,464 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:21:13,464 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:21:13,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,524 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 72 [2024-11-08 19:21:13,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:21:13,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:21:13,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:21:13,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:21:13,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,543 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,558 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-08 19:21:13,559 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,559 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,585 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:21:13,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:21:13,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:21:13,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:21:13,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (1/1) ... [2024-11-08 19:21:13,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:21:13,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:21:13,628 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:21:13,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:21:13,654 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:21:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:21:13,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 19:21:13,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:21:13,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:21:13,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:21:13,837 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:21:13,840 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:21:14,012 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-08 19:21:14,012 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:21:14,024 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:21:14,025 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:21:14,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:21:14 BoogieIcfgContainer [2024-11-08 19:21:14,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:21:14,027 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:21:14,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:21:14,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:21:14,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:21:11" (1/3) ... [2024-11-08 19:21:14,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5170f64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:21:14, skipping insertion in model container [2024-11-08 19:21:14,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:21:13" (2/3) ... [2024-11-08 19:21:14,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5170f64c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:21:14, skipping insertion in model container [2024-11-08 19:21:14,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:21:14" (3/3) ... [2024-11-08 19:21:14,034 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_65_bad.i [2024-11-08 19:21:14,054 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:21:14,054 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:21:14,144 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:21:14,151 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=PETRI_NET, 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;@45567630, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:21:14,152 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:21:14,159 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 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) [2024-11-08 19:21:14,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 19:21:14,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:21:14,170 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:21:14,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 19:21:14,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:21:14,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times [2024-11-08 19:21:14,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:21:14,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637304658] [2024-11-08 19:21:14,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:21:14,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:21:14,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:21:14,222 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:21:14,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:21:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:21:14,444 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:21:14,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:21:14,505 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 19:21:14,508 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:21:14,512 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 19:21:14,514 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 19:21:14,540 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:21:14,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:21:14,719 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 19:21:14,742 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:21:14,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:21:14 BoogieIcfgContainer [2024-11-08 19:21:14,745 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:21:14,746 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:21:14,746 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:21:14,747 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:21:14,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:21:14" (3/4) ... [2024-11-08 19:21:14,752 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:21:14,754 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:21:14,755 INFO L158 Benchmark]: Toolchain (without parser) took 3060.79ms. Allocated memory was 65.0MB in the beginning and 98.6MB in the end (delta: 33.6MB). Free memory was 37.3MB in the beginning and 56.2MB in the end (delta: -18.9MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2024-11-08 19:21:14,757 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:21:14,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1767.43ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 37.2MB in the beginning and 36.7MB in the end (delta: 507.7kB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2024-11-08 19:21:14,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.67ms. Allocated memory is still 81.8MB. Free memory was 36.7MB in the beginning and 33.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:21:14,761 INFO L158 Benchmark]: Boogie Preprocessor took 59.38ms. Allocated memory is still 81.8MB. Free memory was 33.3MB in the beginning and 53.4MB in the end (delta: -20.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:21:14,761 INFO L158 Benchmark]: RCFGBuilder took 438.41ms. Allocated memory is still 81.8MB. Free memory was 53.4MB in the beginning and 38.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 19:21:14,763 INFO L158 Benchmark]: TraceAbstraction took 718.23ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 37.4MB in the beginning and 56.8MB in the end (delta: -19.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:21:14,764 INFO L158 Benchmark]: Witness Printer took 7.72ms. Allocated memory is still 98.6MB. Free memory was 56.8MB in the beginning and 56.2MB in the end (delta: 514.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:21:14,770 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 65.0MB. Free memory was 40.7MB in the beginning and 40.7MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1767.43ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 37.2MB in the beginning and 36.7MB in the end (delta: 507.7kB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.67ms. Allocated memory is still 81.8MB. Free memory was 36.7MB in the beginning and 33.3MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.38ms. Allocated memory is still 81.8MB. Free memory was 33.3MB in the beginning and 53.4MB in the end (delta: -20.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 438.41ms. Allocated memory is still 81.8MB. Free memory was 53.4MB in the beginning and 38.3MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 718.23ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 37.4MB in the beginning and 56.8MB in the end (delta: -19.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.72ms. Allocated memory is still 98.6MB. Free memory was 56.8MB in the beginning and 56.2MB in the end (delta: 514.5kB). Peak memory consumption was 2.1MB. 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1570, overapproximation of fgets at line 1556. 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] [L1570] 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) [L1570] 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] [L1571] CALL CWE191_Integer_Underflow__int_fgets_postdec_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_fgets_postdec_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, funcPtr={-1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1565] CALL funcPtr(data) [L1578] 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: 1578]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=25occurred 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, 0.0s 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 [2024-11-08 19:21:14,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0ff4c54b-c534-4c7d-b104-fc2a1803edca/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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