./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_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_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/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_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/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_a5b70789-cabb-4b43-a53a-4df59c69be4d/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 acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:05:04,138 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:05:04,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 19:05:04,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:05:04,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:05:04,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:05:04,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:05:04,234 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:05:04,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:05:04,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:05:04,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:05:04,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:05:04,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:05:04,238 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:05:04,238 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:05:04,239 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:05:04,239 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:05:04,240 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:05:04,240 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:05:04,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:05:04,241 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:05:04,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:05:04,242 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:05:04,243 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:05:04,243 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:05:04,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:05:04,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:05:04,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:05:04,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:05:04,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:05:04,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:05:04,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:05:04,247 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:05:04,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:05:04,248 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:05:04,248 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 19:05:04,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:05:04,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:05:04,249 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:05:04,249 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:05:04,250 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:05:04,250 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_a5b70789-cabb-4b43-a53a-4df59c69be4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 [2024-11-08 19:05:04,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:05:04,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:05:04,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:05:04,605 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:05:04,606 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:05:04,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i Unable to find full path for "g++" [2024-11-08 19:05:06,847 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:05:07,284 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:05:07,285 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-11-08 19:05:07,315 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/data/993ddbea5/9bfe61b66600419b8cc678bca274b912/FLAG549db13ca [2024-11-08 19:05:07,331 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/data/993ddbea5/9bfe61b66600419b8cc678bca274b912 [2024-11-08 19:05:07,334 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:05:07,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:05:07,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:05:07,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:05:07,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:05:07,345 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:05:07" (1/1) ... [2024-11-08 19:05:07,346 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@376a9f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:07, skipping insertion in model container [2024-11-08 19:05:07,346 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:05:07" (1/1) ... [2024-11-08 19:05:07,428 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:05:08,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:05:08,712 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:05:08,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:05:09,006 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:05:09,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09 WrapperNode [2024-11-08 19:05:09,007 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:05:09,008 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:05:09,008 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:05:09,008 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:05:09,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,039 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,067 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-08 19:05:09,068 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:05:09,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:05:09,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:05:09,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:05:09,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,084 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,107 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 19:05:09,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,119 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,127 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:05:09,128 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:05:09,128 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:05:09,128 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:05:09,131 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (1/1) ... [2024-11-08 19:05:09,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:05:09,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:05:09,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:05:09,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:05:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:05:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:05:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:05:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:05:09,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:05:09,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 19:05:09,352 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:05:09,354 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:05:09,511 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 19:05:09,512 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:05:09,525 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:05:09,525 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:05:09,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:09 BoogieIcfgContainer [2024-11-08 19:05:09,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:05:09,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:05:09,528 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:05:09,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:05:09,533 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:05:07" (1/3) ... [2024-11-08 19:05:09,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aee3607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:05:09, skipping insertion in model container [2024-11-08 19:05:09,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:09" (2/3) ... [2024-11-08 19:05:09,534 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6aee3607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:05:09, skipping insertion in model container [2024-11-08 19:05:09,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:09" (3/3) ... [2024-11-08 19:05:09,537 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-11-08 19:05:09,558 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:05:09,559 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:05:09,650 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:05:09,658 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;@56aec6b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:05:09,658 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:05:09,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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 19:05:09,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 19:05:09,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:09,676 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:09,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 19:05:09,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:09,685 INFO L85 PathProgramCache]: Analyzing trace with hash 733376356, now seen corresponding path program 1 times [2024-11-08 19:05:09,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 19:05:09,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647788021] [2024-11-08 19:05:09,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:09,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:05:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:05:09,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:05:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:05:09,994 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 19:05:09,997 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:05:09,998 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 19:05:10,001 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 19:05:10,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 19:05:10,006 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 19:05:10,030 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:05:10,033 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:05:10 BoogieIcfgContainer [2024-11-08 19:05:10,033 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:05:10,034 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:05:10,034 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:05:10,034 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:05:10,035 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:09" (3/4) ... [2024-11-08 19:05:10,038 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:05:10,040 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:05:10,041 INFO L158 Benchmark]: Toolchain (without parser) took 2705.22ms. Allocated memory is still 184.5MB. Free memory was 143.5MB in the beginning and 91.3MB in the end (delta: 52.1MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2024-11-08 19:05:10,042 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:05:10,043 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1669.78ms. Allocated memory is still 184.5MB. Free memory was 143.5MB in the beginning and 130.2MB in the end (delta: 13.2MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-11-08 19:05:10,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.55ms. Allocated memory is still 184.5MB. Free memory was 130.2MB in the beginning and 127.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:05:10,045 INFO L158 Benchmark]: Boogie Preprocessor took 58.36ms. Allocated memory is still 184.5MB. Free memory was 127.1MB in the beginning and 125.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:05:10,046 INFO L158 Benchmark]: RCFGBuilder took 398.23ms. Allocated memory is still 184.5MB. Free memory was 125.1MB in the beginning and 111.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 19:05:10,048 INFO L158 Benchmark]: TraceAbstraction took 505.32ms. Allocated memory is still 184.5MB. Free memory was 111.3MB in the beginning and 91.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 19:05:10,049 INFO L158 Benchmark]: Witness Printer took 5.99ms. Allocated memory is still 184.5MB. Free memory was 91.5MB in the beginning and 91.3MB in the end (delta: 173.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:05:10,053 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 127.9MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1669.78ms. Allocated memory is still 184.5MB. Free memory was 143.5MB in the beginning and 130.2MB in the end (delta: 13.2MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.55ms. Allocated memory is still 184.5MB. Free memory was 130.2MB in the beginning and 127.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.36ms. Allocated memory is still 184.5MB. Free memory was 127.1MB in the beginning and 125.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 398.23ms. Allocated memory is still 184.5MB. Free memory was 125.1MB in the beginning and 111.3MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 505.32ms. Allocated memory is still 184.5MB. Free memory was 111.3MB in the beginning and 91.5MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.99ms. Allocated memory is still 184.5MB. Free memory was 91.5MB in the beginning and 91.3MB in the end (delta: 173.9kB). 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1554. 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_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; 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] [L1567] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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, 23 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=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:05:10,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/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_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/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_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/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_a5b70789-cabb-4b43-a53a-4df59c69be4d/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 acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:05:12,630 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:05:12,739 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 19:05:12,749 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:05:12,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 19:05:12,753 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 19:05:12,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:05:12,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 19:05:12,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 19:05:12,797 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 19:05:12,797 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 19:05:12,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:05:12,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 19:05:12,800 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:05:12,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:05:12,803 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 19:05:12,804 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:05:12,804 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:05:12,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:05:12,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:05:12,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:05:12,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:05:12,811 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 19:05:12,811 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 19:05:12,811 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:05:12,812 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:05:12,812 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 19:05:12,812 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:05:12,813 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:05:12,813 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:05:12,813 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:05:12,814 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 19:05:12,814 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 19:05:12,814 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 19:05:12,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:05:12,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:05:12,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:05:12,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:05:12,816 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 19:05:12,816 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 19:05:12,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 19:05:12,818 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 19:05:12,819 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 19:05:12,819 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 19:05:12,820 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_a5b70789-cabb-4b43-a53a-4df59c69be4d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acdde09f23e703658bc515440a08ab5c81112e6ec51a1ab42bcc0fc0dc135831 [2024-11-08 19:05:13,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:05:13,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:05:13,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:05:13,297 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:05:13,298 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:05:13,299 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i Unable to find full path for "g++" [2024-11-08 19:05:15,601 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:05:16,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:05:16,043 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-11-08 19:05:16,069 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/data/9e4d5f140/bd5ed337c16b4e3f8fabf269fac0986e/FLAGdc9b0e0d7 [2024-11-08 19:05:16,200 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/data/9e4d5f140/bd5ed337c16b4e3f8fabf269fac0986e [2024-11-08 19:05:16,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:05:16,204 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:05:16,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:05:16,205 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:05:16,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:05:16,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:05:16" (1/1) ... [2024-11-08 19:05:16,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778b57f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:16, skipping insertion in model container [2024-11-08 19:05:16,213 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:05:16" (1/1) ... [2024-11-08 19:05:16,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:05:17,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:05:17,582 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:05:17,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:05:17,851 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:05:17,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17 WrapperNode [2024-11-08 19:05:17,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:05:17,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:05:17,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:05:17,853 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:05:17,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,915 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2024-11-08 19:05:17,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:05:17,916 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:05:17,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:05:17,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:05:17,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,933 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,950 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 19:05:17,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,961 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,964 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,970 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:05:17,971 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:05:17,971 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:05:17,971 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:05:17,972 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (1/1) ... [2024-11-08 19:05:17,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 19:05:17,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:05:18,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 19:05:18,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 19:05:18,035 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 19:05:18,036 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 19:05:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 19:05:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:05:18,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:05:18,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:05:18,246 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:05:18,249 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:05:18,400 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 19:05:18,400 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:05:18,416 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:05:18,416 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:05:18,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:18 BoogieIcfgContainer [2024-11-08 19:05:18,417 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:05:18,419 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 19:05:18,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 19:05:18,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 19:05:18,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 07:05:16" (1/3) ... [2024-11-08 19:05:18,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa9e5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:05:18, skipping insertion in model container [2024-11-08 19:05:18,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:05:17" (2/3) ... [2024-11-08 19:05:18,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa9e5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 07:05:18, skipping insertion in model container [2024-11-08 19:05:18,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:18" (3/3) ... [2024-11-08 19:05:18,429 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_31_bad.i [2024-11-08 19:05:18,479 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 19:05:18,480 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 19:05:18,576 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 19:05:18,585 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;@30bdf36f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 19:05:18,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 19:05:18,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 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 19:05:18,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 19:05:18,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 19:05:18,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 19:05:18,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 19:05:18,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:05:18,608 INFO L85 PathProgramCache]: Analyzing trace with hash 733376356, now seen corresponding path program 1 times [2024-11-08 19:05:18,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 19:05:18,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1062354306] [2024-11-08 19:05:18,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 19:05:18,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:18,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 19:05:18,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 19:05:18,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 19:05:18,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:05:18,823 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 19:05:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 19:05:18,907 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 19:05:18,910 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 19:05:18,911 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 19:05:18,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 19:05:18,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 19:05:19,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 19:05:19,118 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 19:05:19,140 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 19:05:19,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 07:05:19 BoogieIcfgContainer [2024-11-08 19:05:19,144 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 19:05:19,145 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:05:19,145 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:05:19,145 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:05:19,146 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:05:18" (3/4) ... [2024-11-08 19:05:19,148 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 19:05:19,150 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:05:19,151 INFO L158 Benchmark]: Toolchain (without parser) took 2946.94ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 43.9MB in the beginning and 53.5MB in the end (delta: -9.6MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2024-11-08 19:05:19,151 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 71.3MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:05:19,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1647.03ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 43.7MB in the beginning and 60.6MB in the end (delta: -16.9MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-08 19:05:19,153 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.95ms. Allocated memory is still 100.7MB. Free memory was 60.6MB in the beginning and 57.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:05:19,153 INFO L158 Benchmark]: Boogie Preprocessor took 53.66ms. Allocated memory is still 100.7MB. Free memory was 57.8MB in the beginning and 54.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:05:19,154 INFO L158 Benchmark]: RCFGBuilder took 446.34ms. Allocated memory is still 100.7MB. Free memory was 54.8MB in the beginning and 40.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 19:05:19,155 INFO L158 Benchmark]: TraceAbstraction took 724.72ms. Allocated memory is still 100.7MB. Free memory was 39.6MB in the beginning and 54.1MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:05:19,155 INFO L158 Benchmark]: Witness Printer took 5.15ms. Allocated memory is still 100.7MB. Free memory was 54.1MB in the beginning and 53.5MB in the end (delta: 598.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:05:19,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 71.3MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1647.03ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 43.7MB in the beginning and 60.6MB in the end (delta: -16.9MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.95ms. Allocated memory is still 100.7MB. Free memory was 60.6MB in the beginning and 57.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.66ms. Allocated memory is still 100.7MB. Free memory was 57.8MB in the beginning and 54.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 446.34ms. Allocated memory is still 100.7MB. Free memory was 54.8MB in the beginning and 40.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 724.72ms. Allocated memory is still 100.7MB. Free memory was 39.6MB in the beginning and 54.1MB in the end (delta: -14.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.15ms. Allocated memory is still 100.7MB. Free memory was 54.1MB in the beginning and 53.5MB in the end (delta: 598.9kB). 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: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1554. 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_predec_31_bad() [L1550] int data; [L1551] data = 0 [L1553] 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] [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1564] int dataCopy = data; [L1565] int data = dataCopy; 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] [L1567] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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, 23 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=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 19:05:19,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a5b70789-cabb-4b43-a53a-4df59c69be4d/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