./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_54_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_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/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_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/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_e5012abd-88f2-48d6-a874-f374838c52a9/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 db598f24fd764e67b522f5d4f98f2564bb3f2d8c9e3be827ad1aeb8b6c3f693a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:44:15,819 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:44:15,925 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 17:44:15,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:44:15,934 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:44:15,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:44:15,975 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:44:15,976 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:44:15,976 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:44:15,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:44:15,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:44:15,979 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:44:15,980 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:44:15,980 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:44:15,980 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:44:15,981 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:44:15,985 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:44:15,985 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:44:15,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:44:15,986 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:44:15,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:44:15,987 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:44:15,989 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:44:15,989 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:44:15,990 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:44:15,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:44:15,993 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:44:15,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:44:15,993 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:44:15,993 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:44:15,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:44:15,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:44:15,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:44:15,997 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:44:15,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:44:15,997 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:44:15,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:44:15,997 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:44:15,998 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:44:15,998 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:44:15,998 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:44:16,000 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_e5012abd-88f2-48d6-a874-f374838c52a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db598f24fd764e67b522f5d4f98f2564bb3f2d8c9e3be827ad1aeb8b6c3f693a [2024-11-08 17:44:16,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:44:16,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:44:16,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:44:16,387 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:44:16,388 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:44:16,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_54_bad.i Unable to find full path for "g++" [2024-11-08 17:44:18,446 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:44:18,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:44:18,880 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_54_bad.i [2024-11-08 17:44:18,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/data/69f3448c0/cbb0d9c437654f699bfc5dc9b7662750/FLAG7e2f803bc [2024-11-08 17:44:19,044 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/data/69f3448c0/cbb0d9c437654f699bfc5dc9b7662750 [2024-11-08 17:44:19,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:44:19,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:44:19,051 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:44:19,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:44:19,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:44:19,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:44:19" (1/1) ... [2024-11-08 17:44:19,065 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fddb56f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:19, skipping insertion in model container [2024-11-08 17:44:19,065 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:44:19" (1/1) ... [2024-11-08 17:44:19,149 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:44:20,263 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:44:20,274 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:44:20,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:44:20,649 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:44:20,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20 WrapperNode [2024-11-08 17:44:20,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:44:20,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:44:20,652 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:44:20,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:44:20,661 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,733 INFO L138 Inliner]: procedures = 502, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 73 [2024-11-08 17:44:20,734 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:44:20,735 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:44:20,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:44:20,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:44:20,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,757 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,778 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 17:44:20,778 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,779 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,784 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,787 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,790 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:44:20,794 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:44:20,794 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:44:20,794 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:44:20,796 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (1/1) ... [2024-11-08 17:44:20,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:44:20,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:20,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:44:20,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:44:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 17:44:20,889 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 17:44:20,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:44:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:44:20,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:44:20,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:44:21,056 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:44:21,059 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:44:21,203 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-08 17:44:21,203 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:44:21,222 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:44:21,222 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:44:21,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:44:21 BoogieIcfgContainer [2024-11-08 17:44:21,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:44:21,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:44:21,227 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:44:21,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:44:21,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:44:19" (1/3) ... [2024-11-08 17:44:21,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607e5469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:44:21, skipping insertion in model container [2024-11-08 17:44:21,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:20" (2/3) ... [2024-11-08 17:44:21,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607e5469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:44:21, skipping insertion in model container [2024-11-08 17:44:21,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:44:21" (3/3) ... [2024-11-08 17:44:21,235 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_54_bad.i [2024-11-08 17:44:21,258 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:44:21,258 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:44:21,325 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:44:21,333 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;@70c551d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:44:21,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:44:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 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 17:44:21,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 17:44:21,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:44:21,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:21,349 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:44:21,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:21,355 INFO L85 PathProgramCache]: Analyzing trace with hash -922665959, now seen corresponding path program 1 times [2024-11-08 17:44:21,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:44:21,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245130646] [2024-11-08 17:44:21,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:44:21,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:44:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:44:21,550 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:44:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:44:21,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:44:21,647 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:44:21,651 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 17:44:21,654 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 17:44:21,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:44:21,661 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:44:21,683 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:44:21,686 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:44:21 BoogieIcfgContainer [2024-11-08 17:44:21,687 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:44:21,688 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:44:21,688 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:44:21,688 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:44:21,689 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:44:21" (3/4) ... [2024-11-08 17:44:21,691 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:44:21,692 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:44:21,693 INFO L158 Benchmark]: Toolchain (without parser) took 2643.51ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 101.7MB in the beginning and 115.7MB in the end (delta: -14.0MB). Peak memory consumption was 49.4MB. Max. memory is 16.1GB. [2024-11-08 17:44:21,694 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 142.6MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:44:21,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1599.23ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 101.2MB in the beginning and 154.5MB in the end (delta: -53.3MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. [2024-11-08 17:44:21,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.55ms. Allocated memory is still 203.4MB. Free memory was 154.5MB in the beginning and 151.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:44:21,696 INFO L158 Benchmark]: Boogie Preprocessor took 57.88ms. Allocated memory is still 203.4MB. Free memory was 151.4MB in the beginning and 149.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:44:21,697 INFO L158 Benchmark]: RCFGBuilder took 429.56ms. Allocated memory is still 203.4MB. Free memory was 149.3MB in the beginning and 135.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:44:21,698 INFO L158 Benchmark]: TraceAbstraction took 460.04ms. Allocated memory is still 203.4MB. Free memory was 134.6MB in the beginning and 115.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 17:44:21,698 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 203.4MB. Free memory is still 115.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:44:21,702 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 142.6MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1599.23ms. Allocated memory was 142.6MB in the beginning and 203.4MB in the end (delta: 60.8MB). Free memory was 101.2MB in the beginning and 154.5MB in the end (delta: -53.3MB). Peak memory consumption was 70.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.55ms. Allocated memory is still 203.4MB. Free memory was 154.5MB in the beginning and 151.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.88ms. Allocated memory is still 203.4MB. Free memory was 151.4MB in the beginning and 149.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 429.56ms. Allocated memory is still 203.4MB. Free memory was 149.3MB in the beginning and 135.7MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 460.04ms. Allocated memory is still 203.4MB. Free memory was 134.6MB in the beginning and 115.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 203.4MB. Free memory is still 115.7MB. 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: 1593]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_multiply_54e_badSink(data) [L1591] 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] [L1593] 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: 1593]: 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, 28 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=28occurred 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 17:44:21,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/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_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/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_e5012abd-88f2-48d6-a874-f374838c52a9/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 db598f24fd764e67b522f5d4f98f2564bb3f2d8c9e3be827ad1aeb8b6c3f693a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:44:24,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:44:24,352 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 17:44:24,358 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:44:24,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:44:24,359 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 17:44:24,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:44:24,399 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:44:24,399 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:44:24,401 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:44:24,402 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:44:24,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:44:24,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:44:24,404 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:44:24,404 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:44:24,405 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:44:24,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:44:24,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:44:24,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:44:24,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:44:24,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:44:24,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:44:24,411 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:44:24,411 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:44:24,411 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:44:24,412 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:44:24,412 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:44:24,412 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:44:24,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:44:24,412 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:44:24,413 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:44:24,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:44:24,413 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:44:24,413 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:44:24,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:44:24,414 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:44:24,417 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:44:24,418 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:44:24,418 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:44:24,418 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:44:24,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:44:24,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:44:24,419 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:44:24,419 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:44:24,420 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_e5012abd-88f2-48d6-a874-f374838c52a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db598f24fd764e67b522f5d4f98f2564bb3f2d8c9e3be827ad1aeb8b6c3f693a [2024-11-08 17:44:24,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:44:24,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:44:24,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:44:24,861 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:44:24,861 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:44:24,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_54_bad.i Unable to find full path for "g++" [2024-11-08 17:44:27,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:44:27,546 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:44:27,547 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_54_bad.i [2024-11-08 17:44:27,568 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/data/36aec3666/02475643330946e784cb45f9adaf90ef/FLAG5fa72d71a [2024-11-08 17:44:27,584 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/data/36aec3666/02475643330946e784cb45f9adaf90ef [2024-11-08 17:44:27,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:44:27,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:44:27,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:44:27,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:44:27,596 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:44:27,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:44:27" (1/1) ... [2024-11-08 17:44:27,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c4642a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:27, skipping insertion in model container [2024-11-08 17:44:27,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:44:27" (1/1) ... [2024-11-08 17:44:27,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:44:28,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:44:28,716 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:44:28,801 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:44:29,012 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:44:29,013 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29 WrapperNode [2024-11-08 17:44:29,013 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:44:29,014 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:44:29,014 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:44:29,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:44:29,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,081 INFO L138 Inliner]: procedures = 507, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 72 [2024-11-08 17:44:29,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:44:29,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:44:29,083 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:44:29,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:44:29,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,099 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,115 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 17:44:29,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:44:29,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:44:29,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:44:29,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:44:29,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (1/1) ... [2024-11-08 17:44:29,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:44:29,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:29,175 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:44:29,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:44:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 17:44:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 17:44:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:44:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:44:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:44:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:44:29,394 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:44:29,396 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:44:29,593 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2024-11-08 17:44:29,593 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:44:29,611 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:44:29,613 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:44:29,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:44:29 BoogieIcfgContainer [2024-11-08 17:44:29,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:44:29,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:44:29,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:44:29,620 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:44:29,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:44:27" (1/3) ... [2024-11-08 17:44:29,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4af60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:44:29, skipping insertion in model container [2024-11-08 17:44:29,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:44:29" (2/3) ... [2024-11-08 17:44:29,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f4af60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:44:29, skipping insertion in model container [2024-11-08 17:44:29,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:44:29" (3/3) ... [2024-11-08 17:44:29,625 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_54_bad.i [2024-11-08 17:44:29,641 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:44:29,641 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:44:29,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:44:29,718 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;@30628b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:44:29,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:44:29,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 23 states have internal predecessors, (26), 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 17:44:29,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 17:44:29,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:44:29,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:44:29,730 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:44:29,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:44:29,734 INFO L85 PathProgramCache]: Analyzing trace with hash -922665959, now seen corresponding path program 1 times [2024-11-08 17:44:29,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:44:29,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139447889] [2024-11-08 17:44:29,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:44:29,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:29,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:44:29,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:44:29,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:44:29,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:44:29,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:44:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:44:30,054 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 17:44:30,057 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:44:30,059 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 17:44:30,061 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 17:44:30,084 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:44:30,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:44:30,266 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 17:44:30,287 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:44:30,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:44:30 BoogieIcfgContainer [2024-11-08 17:44:30,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:44:30,291 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:44:30,291 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:44:30,292 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:44:30,293 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:44:29" (3/4) ... [2024-11-08 17:44:30,297 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:44:30,300 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:44:30,302 INFO L158 Benchmark]: Toolchain (without parser) took 2713.39ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 58.9MB in the beginning and 51.6MB in the end (delta: 7.3MB). Peak memory consumption was 35.3MB. Max. memory is 16.1GB. [2024-11-08 17:44:30,303 INFO L158 Benchmark]: CDTParser took 1.41ms. Allocated memory is still 81.8MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:44:30,304 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1423.93ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 58.7MB in the beginning and 60.7MB in the end (delta: -2.1MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-11-08 17:44:30,305 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.97ms. Allocated memory is still 111.1MB. Free memory was 60.7MB in the beginning and 57.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:44:30,306 INFO L158 Benchmark]: Boogie Preprocessor took 51.28ms. Allocated memory is still 111.1MB. Free memory was 57.6MB in the beginning and 55.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:44:30,307 INFO L158 Benchmark]: RCFGBuilder took 479.23ms. Allocated memory is still 111.1MB. Free memory was 55.0MB in the beginning and 71.8MB in the end (delta: -16.8MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-11-08 17:44:30,308 INFO L158 Benchmark]: TraceAbstraction took 675.02ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 52.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 17:44:30,308 INFO L158 Benchmark]: Witness Printer took 8.98ms. Allocated memory is still 111.1MB. Free memory is still 51.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:44:30,314 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41ms. Allocated memory is still 81.8MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1423.93ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 58.7MB in the beginning and 60.7MB in the end (delta: -2.1MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.97ms. Allocated memory is still 111.1MB. Free memory was 60.7MB in the beginning and 57.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.28ms. Allocated memory is still 111.1MB. Free memory was 57.6MB in the beginning and 55.0MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 479.23ms. Allocated memory is still 111.1MB. Free memory was 55.0MB in the beginning and 71.8MB in the end (delta: -16.8MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 675.02ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 52.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 8.98ms. Allocated memory is still 111.1MB. Free memory is still 51.6MB. 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: 1593]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_multiply_54e_badSink(data) [L1591] 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] [L1593] 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: 1593]: 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, 28 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=28occurred 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 17:44:30,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5012abd-88f2-48d6-a874-f374838c52a9/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