./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/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_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/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_1fba5388-f0d5-453d-b256-83305ffc5047/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 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:37:21,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:37:21,361 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 18:37:21,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:37:21,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:37:21,405 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:37:21,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:37:21,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:37:21,408 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:37:21,409 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:37:21,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:37:21,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:37:21,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:37:21,412 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:37:21,413 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:37:21,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:37:21,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:37:21,418 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:37:21,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:37:21,418 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:37:21,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:37:21,419 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:37:21,420 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:37:21,420 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:37:21,420 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:37:21,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:37:21,421 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:37:21,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:37:21,423 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:37:21,423 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:37:21,423 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:37:21,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:37:21,424 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:37:21,425 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:37:21,425 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:37:21,426 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:37:21,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:37:21,426 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:37:21,426 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:37:21,426 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:37:21,427 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:37:21,427 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_1fba5388-f0d5-453d-b256-83305ffc5047/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2024-11-08 18:37:21,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:37:21,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:37:21,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:37:21,753 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:37:21,754 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:37:21,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i Unable to find full path for "g++" [2024-11-08 18:37:23,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:37:24,327 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:37:24,328 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-08 18:37:24,358 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/data/cc0071702/c1b7984287e640dea9868a122d358be8/FLAG52d528f9e [2024-11-08 18:37:24,379 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/data/cc0071702/c1b7984287e640dea9868a122d358be8 [2024-11-08 18:37:24,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:37:24,385 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:37:24,389 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:37:24,390 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:37:24,396 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:37:24,397 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:37:24" (1/1) ... [2024-11-08 18:37:24,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c73989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:24, skipping insertion in model container [2024-11-08 18:37:24,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:37:24" (1/1) ... [2024-11-08 18:37:24,483 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:37:25,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:37:25,481 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:37:25,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:37:25,687 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:37:25,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25 WrapperNode [2024-11-08 18:37:25,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:37:25,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:37:25,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:37:25,690 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:37:25,697 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,749 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-08 18:37:25,750 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:37:25,750 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:37:25,751 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:37:25,751 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:37:25,767 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,770 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,784 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 18:37:25,785 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,795 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:37:25,798 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:37:25,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:37:25,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:37:25,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (1/1) ... [2024-11-08 18:37:25,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:37:25,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:25,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:25,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:37:25,870 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:37:25,870 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:37:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:37:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:37:25,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:37:25,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:37:26,089 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:37:26,091 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:37:26,271 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 18:37:26,271 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:37:26,291 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:37:26,292 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:37:26,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:26 BoogieIcfgContainer [2024-11-08 18:37:26,296 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:37:26,298 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:37:26,298 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:37:26,305 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:37:26,307 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:37:24" (1/3) ... [2024-11-08 18:37:26,308 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57479576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:37:26, skipping insertion in model container [2024-11-08 18:37:26,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:25" (2/3) ... [2024-11-08 18:37:26,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57479576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:37:26, skipping insertion in model container [2024-11-08 18:37:26,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:26" (3/3) ... [2024-11-08 18:37:26,313 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-08 18:37:26,332 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:37:26,333 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:37:26,401 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:37:26,409 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;@7b20bcba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:37:26,409 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:37:26,413 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 18:37:26,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:37:26,421 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:26,421 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:26,422 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:37:26,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:26,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:37:26,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:37:26,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024367038] [2024-11-08 18:37:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:26,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:37:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:26,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:26,705 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:37:26,707 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:37:26,712 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:37:26,714 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:37:26,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:37:26,718 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:37:26,741 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:37:26,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:37:26 BoogieIcfgContainer [2024-11-08 18:37:26,744 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:37:26,744 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:37:26,745 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:37:26,745 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:37:26,745 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:26" (3/4) ... [2024-11-08 18:37:26,748 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:37:26,750 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:37:26,751 INFO L158 Benchmark]: Toolchain (without parser) took 2365.66ms. Allocated memory is still 157.3MB. Free memory was 119.0MB in the beginning and 113.3MB in the end (delta: 5.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2024-11-08 18:37:26,752 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:37:26,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1299.74ms. Allocated memory is still 157.3MB. Free memory was 118.6MB in the beginning and 98.0MB in the end (delta: 20.6MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-08 18:37:26,753 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.81ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 95.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:37:26,754 INFO L158 Benchmark]: Boogie Preprocessor took 47.16ms. Allocated memory is still 157.3MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:37:26,754 INFO L158 Benchmark]: RCFGBuilder took 497.96ms. Allocated memory is still 157.3MB. Free memory was 93.0MB in the beginning and 79.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:37:26,755 INFO L158 Benchmark]: TraceAbstraction took 445.54ms. Allocated memory is still 157.3MB. Free memory was 79.0MB in the beginning and 114.2MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:37:26,756 INFO L158 Benchmark]: Witness Printer took 5.55ms. Allocated memory is still 157.3MB. Free memory was 114.2MB in the beginning and 113.3MB in the end (delta: 864.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:37:26,759 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 113.2MB. Free memory is still 60.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1299.74ms. Allocated memory is still 157.3MB. Free memory was 118.6MB in the beginning and 98.0MB in the end (delta: 20.6MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.81ms. Allocated memory is still 157.3MB. Free memory was 98.0MB in the beginning and 95.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.16ms. Allocated memory is still 157.3MB. Free memory was 95.1MB in the beginning and 93.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.96ms. Allocated memory is still 157.3MB. Free memory was 93.0MB in the beginning and 79.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 445.54ms. Allocated memory is still 157.3MB. Free memory was 79.0MB in the beginning and 114.2MB in the end (delta: -35.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.55ms. Allocated memory is still 157.3MB. Free memory was 114.2MB in the beginning and 113.3MB in the end (delta: 864.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1573, overapproximation of fgets at line 1558. 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] int CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData; VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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] [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_68_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: 1585]: 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: 0.3s, 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, 0.1s 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 18:37:26,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/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_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/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_1fba5388-f0d5-453d-b256-83305ffc5047/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 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:37:29,302 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:37:29,400 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 18:37:29,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:37:29,408 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:37:29,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 18:37:29,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:37:29,452 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:37:29,452 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:37:29,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:37:29,455 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:37:29,456 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:37:29,456 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:37:29,457 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:37:29,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:37:29,461 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:37:29,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:37:29,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:37:29,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:37:29,463 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:37:29,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:37:29,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:37:29,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:37:29,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:37:29,464 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:37:29,464 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:37:29,464 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:37:29,465 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:37:29,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:37:29,465 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:37:29,465 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:37:29,466 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:37:29,466 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:37:29,466 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:37:29,466 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:37:29,468 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:37:29,468 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:37:29,468 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:37:29,469 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:37:29,469 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:37:29,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:37:29,477 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:37:29,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:37:29,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:37:29,478 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_1fba5388-f0d5-453d-b256-83305ffc5047/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2114354133268dfafe9d28136595d928edb01ed818db8ce52e2a575acd455d7a [2024-11-08 18:37:29,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:37:29,925 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:37:29,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:37:29,930 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:37:29,930 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:37:29,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i Unable to find full path for "g++" [2024-11-08 18:37:31,995 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:37:32,018 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-11-08 18:37:32,391 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:37:32,392 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-08 18:37:32,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/data/fe7a218e5/9f038a3eb47047689c66cb97cfc903ca/FLAGa9b2b0873 [2024-11-08 18:37:32,602 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/data/fe7a218e5/9f038a3eb47047689c66cb97cfc903ca [2024-11-08 18:37:32,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:37:32,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:37:32,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:37:32,611 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:37:32,625 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:37:32,626 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:37:32" (1/1) ... [2024-11-08 18:37:32,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1196785d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:32, skipping insertion in model container [2024-11-08 18:37:32,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:37:32" (1/1) ... [2024-11-08 18:37:32,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:37:33,927 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:37:33,945 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:37:34,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:37:34,213 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:37:34,214 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34 WrapperNode [2024-11-08 18:37:34,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:37:34,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:37:34,216 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:37:34,216 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:37:34,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,253 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,293 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-08 18:37:34,296 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:37:34,297 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:37:34,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:37:34,299 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:37:34,311 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,311 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,320 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,347 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 18:37:34,351 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,374 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:37:34,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:37:34,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:37:34,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:37:34,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (1/1) ... [2024-11-08 18:37:34,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:37:34,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:34,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:37:34,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:37:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:37:34,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:37:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:37:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:37:34,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:37:34,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:37:34,673 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:37:34,676 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:37:34,900 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 18:37:34,900 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:37:34,919 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:37:34,919 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:37:34,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:34 BoogieIcfgContainer [2024-11-08 18:37:34,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:37:34,923 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:37:34,923 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:37:34,926 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:37:34,927 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:37:32" (1/3) ... [2024-11-08 18:37:34,927 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb11a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:37:34, skipping insertion in model container [2024-11-08 18:37:34,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:37:34" (2/3) ... [2024-11-08 18:37:34,928 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52eb11a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:37:34, skipping insertion in model container [2024-11-08 18:37:34,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:34" (3/3) ... [2024-11-08 18:37:34,930 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_68_bad.i [2024-11-08 18:37:34,949 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:37:34,952 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:37:35,040 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:37:35,049 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;@5da4231d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:37:35,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:37:35,055 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 18:37:35,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:37:35,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:37:35,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:37:35,066 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:37:35,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:37:35,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:37:35,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:37:35,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [281657182] [2024-11-08 18:37:35,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:37:35,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:37:35,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:37:35,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:37:35,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:37:35,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:35,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:37:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:37:35,352 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 18:37:35,353 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:37:35,355 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:37:35,357 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:37:35,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:37:35,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:37:35,562 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 18:37:35,602 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:37:35,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:37:35 BoogieIcfgContainer [2024-11-08 18:37:35,607 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:37:35,609 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:37:35,609 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:37:35,610 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:37:35,610 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:37:34" (3/4) ... [2024-11-08 18:37:35,614 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:37:35,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:37:35,617 INFO L158 Benchmark]: Toolchain (without parser) took 3010.20ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 55.7MB in the beginning and 65.9MB in the end (delta: -10.2MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2024-11-08 18:37:35,617 INFO L158 Benchmark]: CDTParser took 2.51ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 56.2MB in the end (delta: 148.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:37:35,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1604.19ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 55.5MB in the beginning and 73.4MB in the end (delta: -18.0MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2024-11-08 18:37:35,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.93ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 70.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:37:35,621 INFO L158 Benchmark]: Boogie Preprocessor took 85.82ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 67.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:37:35,622 INFO L158 Benchmark]: RCFGBuilder took 536.54ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 85.4MB in the end (delta: -17.7MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-11-08 18:37:35,623 INFO L158 Benchmark]: TraceAbstraction took 684.43ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 65.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 18:37:35,624 INFO L158 Benchmark]: Witness Printer took 5.98ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 65.9MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:37:35,630 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.51ms. Allocated memory is still 79.7MB. Free memory was 56.4MB in the beginning and 56.2MB in the end (delta: 148.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1604.19ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 55.5MB in the beginning and 73.4MB in the end (delta: -18.0MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.93ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 70.7MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.82ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 67.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.54ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 85.4MB in the end (delta: -17.7MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * TraceAbstraction took 684.43ms. Allocated memory is still 117.4MB. Free memory was 84.8MB in the beginning and 65.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.98ms. Allocated memory is still 117.4MB. Free memory was 65.9MB in the beginning and 65.9MB in the end (delta: 2.6kB). 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560, overapproximation of large string literal at line 1573, overapproximation of fgets at line 1558. 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] int CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1549] int CWE191_Integer_Underflow__int_fgets_postdec_68_goodG2BData; [L1550] int CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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] [L1573] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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) [L1573] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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] [L1574] CALL CWE191_Integer_Underflow__int_fgets_postdec_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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] [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1567] CWE191_Integer_Underflow__int_fgets_postdec_68_badData = data [L1568] CALL CWE191_Integer_Underflow__int_fgets_postdec_68b_badSink() [L1583] int data = CWE191_Integer_Underflow__int_fgets_postdec_68_badData; [L1585] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_68_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_68_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_68_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: 1585]: 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: 0.6s, 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=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 18:37:35,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fba5388-f0d5-453d-b256-83305ffc5047/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