./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_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_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/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_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/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_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/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 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:05:57,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:05:57,228 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 19:05:57,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:05:57,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:05:57,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:05:57,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:05:57,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:05:57,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:05:57,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:05:57,286 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:05:57,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:05:57,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:05:57,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:05:57,290 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:05:57,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:05:57,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:05:57,291 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:05:57,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:05:57,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:05:57,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:05:57,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:05:57,308 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:05:57,308 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:05:57,309 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:05:57,309 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:05:57,309 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:05:57,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:05:57,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:05:57,310 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:05:57,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:05:57,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:05:57,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:05:57,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:05:57,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:05:57,316 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:05:57,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:05:57,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:05:57,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:05:57,318 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:05:57,318 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:05:57,318 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_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 [2024-11-08 19:05:57,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:05:57,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:05:57,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:05:57,632 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:05:57,632 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:05:57,634 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i Unable to find full path for "g++" [2024-11-08 19:05:59,794 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:06:00,180 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:06:00,181 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2024-11-08 19:06:00,211 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/data/1005fabd1/b3a204a0628146329ca35c74f055021c/FLAGfe944ca87 [2024-11-08 19:06:00,380 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/data/1005fabd1/b3a204a0628146329ca35c74f055021c [2024-11-08 19:06:00,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:06:00,384 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:06:00,385 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:06:00,386 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:06:00,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:06:00,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:06:00" (1/1) ... [2024-11-08 19:06:00,396 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67964664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:00, skipping insertion in model container [2024-11-08 19:06:00,397 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:06:00" (1/1) ... [2024-11-08 19:06:00,476 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:06:01,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:06:01,610 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:06:01,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:06:01,960 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:06:01,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01 WrapperNode [2024-11-08 19:06:01,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:06:01,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:06:01,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:06:01,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:06:01,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,041 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 67 [2024-11-08 19:06:02,042 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:06:02,043 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:06:02,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:06:02,044 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:06:02,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,062 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,079 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 19:06:02,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,087 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,089 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,090 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,093 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:06:02,094 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:06:02,094 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:06:02,094 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:06:02,095 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (1/1) ... [2024-11-08 19:06:02,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:06:02,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:06:02,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:06:02,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:06:02,172 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:06:02,173 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:06:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:06:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:06:02,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:06:02,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:06:02,336 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:06:02,338 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:06:02,482 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-08 19:06:02,482 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:06:02,495 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:06:02,495 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:06:02,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:02 BoogieIcfgContainer [2024-11-08 19:06:02,496 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:06:02,500 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:06:02,500 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:06:02,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:06:02,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:06:00" (1/3) ... [2024-11-08 19:06:02,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491263ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:06:02, skipping insertion in model container [2024-11-08 19:06:02,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:01" (2/3) ... [2024-11-08 19:06:02,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491263ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:06:02, skipping insertion in model container [2024-11-08 19:06:02,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:02" (3/3) ... [2024-11-08 19:06:02,511 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2024-11-08 19:06:02,532 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:06:02,533 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:06:02,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:06:02,608 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;@17156679, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:06:02,609 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:06:02,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 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 19:06:02,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 19:06:02,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:02,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:02,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 19:06:02,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:02,637 INFO L85 PathProgramCache]: Analyzing trace with hash 84640165, now seen corresponding path program 1 times [2024-11-08 19:06:02,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:06:02,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919243093] [2024-11-08 19:06:02,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:02,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:06:02,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:06:02,914 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:06:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:06:03,004 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:06:03,007 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:06:03,009 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 19:06:03,011 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 19:06:03,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:06:03,022 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 19:06:03,057 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:06:03,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:06:03 BoogieIcfgContainer [2024-11-08 19:06:03,063 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:06:03,064 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:06:03,064 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:06:03,064 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:06:03,065 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:02" (3/4) ... [2024-11-08 19:06:03,069 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:06:03,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:06:03,073 INFO L158 Benchmark]: Toolchain (without parser) took 2687.68ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 111.6MB in the beginning and 125.9MB in the end (delta: -14.3MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2024-11-08 19:06:03,073 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 157.3MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:06:03,074 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1575.81ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 111.4MB in the beginning and 163.7MB in the end (delta: -52.2MB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. [2024-11-08 19:06:03,075 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.30ms. Allocated memory is still 199.2MB. Free memory was 163.7MB in the beginning and 161.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:06:03,078 INFO L158 Benchmark]: Boogie Preprocessor took 50.14ms. Allocated memory is still 199.2MB. Free memory was 161.6MB in the beginning and 158.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:06:03,078 INFO L158 Benchmark]: RCFGBuilder took 402.48ms. Allocated memory is still 199.2MB. Free memory was 158.4MB in the beginning and 145.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:06:03,079 INFO L158 Benchmark]: TraceAbstraction took 563.51ms. Allocated memory is still 199.2MB. Free memory was 144.8MB in the beginning and 125.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 19:06:03,079 INFO L158 Benchmark]: Witness Printer took 6.89ms. Allocated memory is still 199.2MB. Free memory is still 125.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:06:03,085 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 157.3MB. Free memory is still 122.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1575.81ms. Allocated memory was 157.3MB in the beginning and 199.2MB in the end (delta: 41.9MB). Free memory was 111.4MB in the beginning and 163.7MB in the end (delta: -52.2MB). Peak memory consumption was 84.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.30ms. Allocated memory is still 199.2MB. Free memory was 163.7MB in the beginning and 161.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.14ms. Allocated memory is still 199.2MB. Free memory was 161.6MB in the beginning and 158.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 402.48ms. Allocated memory is still 199.2MB. Free memory was 158.4MB in the beginning and 145.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 563.51ms. Allocated memory is still 199.2MB. Free memory was 144.8MB in the beginning and 125.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.89ms. Allocated memory is still 199.2MB. Free memory is still 125.9MB. 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: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1562. 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] [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_41_bad() [L1558] int data; [L1559] data = 0 [L1561] 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] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 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: 1552]: 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, 12 NumberOfCodeBlocks, 12 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 19:06:03,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/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_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/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_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/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 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:06:05,730 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:06:05,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 19:06:05,873 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:06:05,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:06:05,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 19:06:05,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:06:05,916 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:06:05,917 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:06:05,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:06:05,918 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:06:05,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:06:05,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:06:05,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:06:05,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:06:05,921 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:06:05,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:06:05,921 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:06:05,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:06:05,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:06:05,928 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:06:05,929 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:06:05,929 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:06:05,929 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:06:05,929 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:06:05,930 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:06:05,930 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:06:05,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:06:05,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:06:05,931 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:06:05,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:06:05,931 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:06:05,932 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:06:05,932 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:06:05,932 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:06:05,932 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:06:05,933 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:06:05,933 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:06:05,933 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 19:06:05,933 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:06:05,935 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:06:05,936 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:06:05,936 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:06:05,936 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:06:05,936 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_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bd7ebe0fcd91bb6c68013218f8d4bf8c82af36752e527c49d1288f41512c211 [2024-11-08 19:06:06,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:06:06,455 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:06:06,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:06:06,460 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:06:06,461 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:06:06,462 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i Unable to find full path for "g++" [2024-11-08 19:06:08,577 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:06:09,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:06:09,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2024-11-08 19:06:09,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/data/97731f838/ebca5de8bb6d4ebf9cce6842386128cc/FLAG605830b61 [2024-11-08 19:06:09,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/data/97731f838/ebca5de8bb6d4ebf9cce6842386128cc [2024-11-08 19:06:09,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:06:09,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:06:09,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:06:09,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:06:09,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:06:09,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:06:09" (1/1) ... [2024-11-08 19:06:09,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34186312 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:09, skipping insertion in model container [2024-11-08 19:06:09,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:06:09" (1/1) ... [2024-11-08 19:06:09,236 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:06:10,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:06:10,454 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:06:10,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:06:10,833 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:06:10,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10 WrapperNode [2024-11-08 19:06:10,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:06:10,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:06:10,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:06:10,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:06:10,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,902 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2024-11-08 19:06:10,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:06:10,905 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:06:10,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:06:10,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:06:10,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,921 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,929 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,961 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 19:06:10,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:10,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:11,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:06:11,002 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:06:11,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:06:11,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:06:11,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (1/1) ... [2024-11-08 19:06:11,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:06:11,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:06:11,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:06:11,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:06:11,107 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:06:11,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:06:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 19:06:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:06:11,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:06:11,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:06:11,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:06:11,326 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:06:11,533 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-08 19:06:11,533 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:06:11,547 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:06:11,548 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:06:11,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:11 BoogieIcfgContainer [2024-11-08 19:06:11,549 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:06:11,551 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:06:11,551 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:06:11,556 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:06:11,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:06:09" (1/3) ... [2024-11-08 19:06:11,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd832ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:06:11, skipping insertion in model container [2024-11-08 19:06:11,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:06:10" (2/3) ... [2024-11-08 19:06:11,568 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd832ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:06:11, skipping insertion in model container [2024-11-08 19:06:11,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:11" (3/3) ... [2024-11-08 19:06:11,571 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_41_bad.i [2024-11-08 19:06:11,591 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:06:11,591 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:06:11,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:06:11,695 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;@5be6731c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:06:11,696 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:06:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 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 19:06:11,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 19:06:11,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:06:11,713 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:06:11,714 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 19:06:11,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:06:11,725 INFO L85 PathProgramCache]: Analyzing trace with hash 84640165, now seen corresponding path program 1 times [2024-11-08 19:06:11,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:06:11,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1076536865] [2024-11-08 19:06:11,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:06:11,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:11,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:06:11,751 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:06:11,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:06:11,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:06:11,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:06:12,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:06:12,087 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 19:06:12,090 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:06:12,091 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 19:06:12,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 19:06:12,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:06:12,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:06:12,302 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 19:06:12,336 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:06:12,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:06:12 BoogieIcfgContainer [2024-11-08 19:06:12,340 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:06:12,342 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:06:12,342 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:06:12,343 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:06:12,343 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:06:11" (3/4) ... [2024-11-08 19:06:12,346 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:06:12,347 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:06:12,349 INFO L158 Benchmark]: Toolchain (without parser) took 3215.20ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 42.0MB in the beginning and 43.0MB in the end (delta: -999.4kB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-08 19:06:12,350 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:06:12,351 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1697.37ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 41.8MB in the beginning and 57.0MB in the end (delta: -15.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-08 19:06:12,352 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.00ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 53.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:06:12,353 INFO L158 Benchmark]: Boogie Preprocessor took 97.08ms. Allocated memory is still 90.2MB. Free memory was 53.7MB in the beginning and 51.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:06:12,355 INFO L158 Benchmark]: RCFGBuilder took 546.44ms. Allocated memory is still 90.2MB. Free memory was 51.2MB in the beginning and 36.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 19:06:12,355 INFO L158 Benchmark]: TraceAbstraction took 789.16ms. Allocated memory is still 90.2MB. Free memory was 36.1MB in the beginning and 43.2MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:06:12,357 INFO L158 Benchmark]: Witness Printer took 5.45ms. Allocated memory is still 90.2MB. Free memory was 43.2MB in the beginning and 43.0MB in the end (delta: 157.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:06:12,363 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 69.2MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1697.37ms. Allocated memory was 69.2MB in the beginning and 90.2MB in the end (delta: 21.0MB). Free memory was 41.8MB in the beginning and 57.0MB in the end (delta: -15.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.00ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 53.7MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.08ms. Allocated memory is still 90.2MB. Free memory was 53.7MB in the beginning and 51.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 546.44ms. Allocated memory is still 90.2MB. Free memory was 51.2MB in the beginning and 36.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 789.16ms. Allocated memory is still 90.2MB. Free memory was 36.1MB in the beginning and 43.2MB in the end (delta: -7.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.45ms. Allocated memory is still 90.2MB. Free memory was 43.2MB in the beginning and 43.0MB in the end (delta: 157.1kB). 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: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1562. 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] [L1576] 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) [L1576] 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] [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_41_bad() [L1558] int data; [L1559] data = 0 [L1561] 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] [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1571] CALL badSink(data) [L1550] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] data * 2 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: 1552]: 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, 12 NumberOfCodeBlocks, 12 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 19:06:12,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc180dd-856b-46bd-85d0-e3bc1f1a7ff6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample