./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_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_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/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_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/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_bae269b6-b2d4-4768-a898-4d2b24c03876/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 0e213e4881a4fb7a4a271c29da39e29e45ce4201f3fcd8c2e6b516fd3e1e71f0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:57:31,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:57:31,800 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 18:57:31,810 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:57:31,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:57:31,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:57:31,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:57:31,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:57:31,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:57:31,856 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:57:31,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:57:31,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:57:31,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:57:31,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:57:31,859 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:57:31,862 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:57:31,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:57:31,866 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:57:31,867 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:57:31,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:57:31,867 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:57:31,868 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:57:31,868 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:57:31,869 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:57:31,869 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:57:31,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:57:31,870 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:57:31,870 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:57:31,871 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:57:31,871 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:57:31,871 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:57:31,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:57:31,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:57:31,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:57:31,877 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:57:31,877 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:57:31,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:57:31,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:57:31,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:57:31,879 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:57:31,879 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:57:31,880 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_bae269b6-b2d4-4768-a898-4d2b24c03876/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e213e4881a4fb7a4a271c29da39e29e45ce4201f3fcd8c2e6b516fd3e1e71f0 [2024-11-08 18:57:32,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:57:32,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:57:32,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:57:32,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:57:32,325 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:57:32,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i Unable to find full path for "g++" [2024-11-08 18:57:34,606 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:57:35,057 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:57:35,058 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2024-11-08 18:57:35,086 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/data/e8ae8ff9c/e2d08de7efc8469198e6daa2cf0a5627/FLAG433fc7a72 [2024-11-08 18:57:35,217 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/data/e8ae8ff9c/e2d08de7efc8469198e6daa2cf0a5627 [2024-11-08 18:57:35,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:57:35,225 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:57:35,227 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:35,227 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:57:35,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:57:35,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:35" (1/1) ... [2024-11-08 18:57:35,237 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae05241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:35, skipping insertion in model container [2024-11-08 18:57:35,238 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:35" (1/1) ... [2024-11-08 18:57:35,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:57:36,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:36,573 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:57:36,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:36,959 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:57:36,960 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36 WrapperNode [2024-11-08 18:57:36,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:36,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:36,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:57:36,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:57:36,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:36,999 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,026 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2024-11-08 18:57:37,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:37,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:57:37,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:57:37,029 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:57:37,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,043 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,048 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,071 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 18:57:37,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,072 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,078 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,080 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,082 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,086 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:57:37,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:57:37,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:57:37,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:57:37,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (1/1) ... [2024-11-08 18:57:37,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:57:37,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:37,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:57:37,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:57:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:57:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:57:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:57:37,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:57:37,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:57:37,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:57:37,442 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:57:37,445 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:57:37,633 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 18:57:37,634 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:57:37,655 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:57:37,655 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:57:37,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:37 BoogieIcfgContainer [2024-11-08 18:57:37,657 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:57:37,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:57:37,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:57:37,664 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:57:37,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:57:35" (1/3) ... [2024-11-08 18:57:37,665 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3338b31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:57:37, skipping insertion in model container [2024-11-08 18:57:37,666 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:36" (2/3) ... [2024-11-08 18:57:37,666 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3338b31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:57:37, skipping insertion in model container [2024-11-08 18:57:37,668 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:37" (3/3) ... [2024-11-08 18:57:37,669 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2024-11-08 18:57:37,689 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:57:37,689 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:57:37,770 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:57:37,778 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;@24d1825a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:57:37,779 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:57:37,785 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:57:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:57:37,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:37,794 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:37,795 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:57:37,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:37,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:57:37,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:57:37,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035332371] [2024-11-08 18:57:37,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:37,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:57:38,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:38,014 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:57:38,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:38,087 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:57:38,088 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:57:38,090 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:57:38,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:57:38,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:57:38,098 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:57:38,128 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:57:38,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:57:38 BoogieIcfgContainer [2024-11-08 18:57:38,133 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:57:38,134 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:57:38,134 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:57:38,134 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:57:38,135 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:37" (3/4) ... [2024-11-08 18:57:38,138 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:57:38,139 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:57:38,140 INFO L158 Benchmark]: Toolchain (without parser) took 2915.20ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 73.1MB in the end (delta: 51.0MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2024-11-08 18:57:38,141 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:57:38,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1734.36ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 111.8MB in the end (delta: 12.3MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-08 18:57:38,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.36ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 108.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:57:38,145 INFO L158 Benchmark]: Boogie Preprocessor took 58.17ms. Allocated memory is still 159.4MB. Free memory was 108.6MB in the beginning and 106.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:57:38,148 INFO L158 Benchmark]: RCFGBuilder took 570.96ms. Allocated memory is still 159.4MB. Free memory was 106.6MB in the beginning and 92.9MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:57:38,149 INFO L158 Benchmark]: TraceAbstraction took 473.13ms. Allocated memory is still 159.4MB. Free memory was 92.9MB in the beginning and 74.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 18:57:38,149 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 159.4MB. Free memory was 74.0MB in the beginning and 73.1MB in the end (delta: 963.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:57:38,154 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 115.3MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1734.36ms. Allocated memory is still 159.4MB. Free memory was 124.1MB in the beginning and 111.8MB in the end (delta: 12.3MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.36ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 108.6MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.17ms. Allocated memory is still 159.4MB. Free memory was 108.6MB in the beginning and 106.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 570.96ms. Allocated memory is still 159.4MB. Free memory was 106.6MB in the beginning and 92.9MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 473.13ms. Allocated memory is still 159.4MB. Free memory was 92.9MB in the beginning and 74.0MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.47ms. Allocated memory is still 159.4MB. Free memory was 74.0MB in the beginning and 73.1MB in the end (delta: 963.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1565. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_sub_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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) [L1580] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_45_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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] [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1574] CWE191_Integer_Underflow__int_fgets_sub_45_badData = data [L1575] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_sub_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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] [L1555] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s 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 18:57:38,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/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_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/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_bae269b6-b2d4-4768-a898-4d2b24c03876/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 0e213e4881a4fb7a4a271c29da39e29e45ce4201f3fcd8c2e6b516fd3e1e71f0 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:57:40,820 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:57:40,930 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 18:57:40,938 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:57:40,939 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:57:40,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 18:57:40,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:57:40,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:57:40,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:57:40,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:57:40,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:57:40,988 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:57:40,989 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:57:40,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:57:40,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:57:40,990 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:57:40,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:57:40,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:57:40,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:57:40,992 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:57:40,992 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:57:40,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:57:40,996 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:57:40,996 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:57:40,997 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:57:40,997 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:57:40,997 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:57:40,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:57:40,998 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:57:40,998 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:57:41,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:57:41,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:57:41,000 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:57:41,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:57:41,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:57:41,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:57:41,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:57:41,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:57:41,002 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:57:41,002 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:57:41,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:57:41,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:57:41,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:57:41,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:57:41,004 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_bae269b6-b2d4-4768-a898-4d2b24c03876/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e213e4881a4fb7a4a271c29da39e29e45ce4201f3fcd8c2e6b516fd3e1e71f0 [2024-11-08 18:57:41,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:57:41,458 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:57:41,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:57:41,463 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:57:41,463 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:57:41,465 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i Unable to find full path for "g++" [2024-11-08 18:57:43,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:57:44,188 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:57:44,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2024-11-08 18:57:44,215 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/data/3149d5d99/af7296d3cbaa49cd9a24df216022df67/FLAG1ad783c62 [2024-11-08 18:57:44,235 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/data/3149d5d99/af7296d3cbaa49cd9a24df216022df67 [2024-11-08 18:57:44,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:57:44,242 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:57:44,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:44,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:57:44,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:57:44,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:44" (1/1) ... [2024-11-08 18:57:44,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6340c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:44, skipping insertion in model container [2024-11-08 18:57:44,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:57:44" (1/1) ... [2024-11-08 18:57:44,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:57:45,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:45,665 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:57:45,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:57:45,888 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:57:45,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45 WrapperNode [2024-11-08 18:57:45,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:57:45,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:45,891 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:57:45,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:57:45,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:45,932 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:45,962 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-08 18:57:45,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:57:45,965 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:57:45,965 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:57:45,965 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:57:45,977 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:45,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:45,984 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:46,021 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 18:57:46,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:46,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:46,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:46,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:46,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:46,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:46,056 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:57:46,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:57:46,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:57:46,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:57:46,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (1/1) ... [2024-11-08 18:57:46,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:57:46,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:46,111 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:57:46,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:57:46,145 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:57:46,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:57:46,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:57:46,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:57:46,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:57:46,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:57:46,369 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:57:46,372 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:57:46,557 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-08 18:57:46,560 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:57:46,575 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:57:46,576 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:57:46,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:46 BoogieIcfgContainer [2024-11-08 18:57:46,576 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:57:46,578 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:57:46,579 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:57:46,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:57:46,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:57:44" (1/3) ... [2024-11-08 18:57:46,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3627d4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:57:46, skipping insertion in model container [2024-11-08 18:57:46,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:57:45" (2/3) ... [2024-11-08 18:57:46,586 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3627d4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:57:46, skipping insertion in model container [2024-11-08 18:57:46,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:46" (3/3) ... [2024-11-08 18:57:46,588 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2024-11-08 18:57:46,607 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:57:46,607 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:57:46,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:57:46,685 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;@65dc5b53, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:57:46,685 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:57:46,690 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 18:57:46,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:57:46,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:57:46,698 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:57:46,699 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:57:46,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:57:46,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:57:46,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:57:46,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525502611] [2024-11-08 18:57:46,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:57:46,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:46,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:57:46,726 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:57:46,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:57:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:46,896 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:57:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:57:46,975 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 18:57:46,977 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:57:46,979 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:57:46,981 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:57:47,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 18:57:47,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:57:47,185 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:57:47,207 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:57:47,210 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:57:47 BoogieIcfgContainer [2024-11-08 18:57:47,210 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:57:47,211 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:57:47,211 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:57:47,211 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:57:47,212 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:57:46" (3/4) ... [2024-11-08 18:57:47,215 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:57:47,216 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:57:47,217 INFO L158 Benchmark]: Toolchain (without parser) took 2975.37ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 52.7MB in the beginning and 68.9MB in the end (delta: -16.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-11-08 18:57:47,218 INFO L158 Benchmark]: CDTParser took 1.38ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 55.5MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:57:47,219 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1644.92ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 52.4MB in the beginning and 51.3MB in the end (delta: 1.1MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2024-11-08 18:57:47,220 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.40ms. Allocated memory is still 102.8MB. Free memory was 50.9MB in the beginning and 47.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:57:47,220 INFO L158 Benchmark]: Boogie Preprocessor took 91.70ms. Allocated memory is still 102.8MB. Free memory was 47.8MB in the beginning and 74.0MB in the end (delta: -26.2MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2024-11-08 18:57:47,221 INFO L158 Benchmark]: RCFGBuilder took 519.19ms. Allocated memory is still 102.8MB. Free memory was 74.0MB in the beginning and 59.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:57:47,222 INFO L158 Benchmark]: TraceAbstraction took 632.03ms. Allocated memory is still 102.8MB. Free memory was 58.7MB in the beginning and 69.5MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:57:47,222 INFO L158 Benchmark]: Witness Printer took 4.99ms. Allocated memory is still 102.8MB. Free memory was 69.5MB in the beginning and 68.9MB in the end (delta: 667.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:57:47,226 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38ms. Allocated memory is still 79.7MB. Free memory was 55.7MB in the beginning and 55.5MB in the end (delta: 148.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1644.92ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 52.4MB in the beginning and 51.3MB in the end (delta: 1.1MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.40ms. Allocated memory is still 102.8MB. Free memory was 50.9MB in the beginning and 47.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.70ms. Allocated memory is still 102.8MB. Free memory was 47.8MB in the beginning and 74.0MB in the end (delta: -26.2MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * RCFGBuilder took 519.19ms. Allocated memory is still 102.8MB. Free memory was 74.0MB in the beginning and 59.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 632.03ms. Allocated memory is still 102.8MB. Free memory was 58.7MB in the beginning and 69.5MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.99ms. Allocated memory is still 102.8MB. Free memory was 69.5MB in the beginning and 68.9MB in the end (delta: 667.7kB). 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567, overapproximation of large string literal at line 1580, overapproximation of fgets at line 1565. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_sub_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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) [L1580] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_45_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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] [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1574] CWE191_Integer_Underflow__int_fgets_sub_45_badData = data [L1575] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_sub_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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] [L1555] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s 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 18:57:47,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bae269b6-b2d4-4768-a898-4d2b24c03876/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample