./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_54_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_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c250de366060070ba4c35e5dee5f788919ae086e7d982cfe0ff3210cd40565f4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:05:23,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:05:24,075 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-09 01:05:24,079 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:05:24,080 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:05:24,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:05:24,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:05:24,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:05:24,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:05:24,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:05:24,104 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:05:24,104 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:05:24,105 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:05:24,105 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 01:05:24,105 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:05:24,106 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:05:24,106 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 01:05:24,107 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 01:05:24,107 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:05:24,107 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 01:05:24,108 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 01:05:24,113 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 01:05:24,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:05:24,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:05:24,114 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 01:05:24,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:05:24,115 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:05:24,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:05:24,115 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:05:24,115 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:05:24,116 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 01:05:24,116 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:05:24,116 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:05:24,116 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:05:24,116 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:05:24,117 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:05:24,117 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:05:24,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:05:24,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:05:24,118 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:05:24,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:05:24,118 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 01:05:24,119 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 01:05:24,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:05:24,119 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:05:24,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 01:05:24,119 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c250de366060070ba4c35e5dee5f788919ae086e7d982cfe0ff3210cd40565f4 [2024-11-09 01:05:24,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:05:24,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:05:24,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:05:24,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:05:24,445 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:05:24,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_54_bad.i Unable to find full path for "g++" [2024-11-09 01:05:26,472 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:05:26,854 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:05:26,856 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_54_bad.i [2024-11-09 01:05:26,889 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/data/26b31d147/8b7459781a974217b43ed21f00a39c67/FLAG3423bbff8 [2024-11-09 01:05:27,031 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/data/26b31d147/8b7459781a974217b43ed21f00a39c67 [2024-11-09 01:05:27,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:05:27,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:05:27,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:05:27,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:05:27,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:05:27,048 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:05:27" (1/1) ... [2024-11-09 01:05:27,049 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c95792c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:27, skipping insertion in model container [2024-11-09 01:05:27,049 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:05:27" (1/1) ... [2024-11-09 01:05:27,122 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:05:28,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:05:28,146 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:05:28,259 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:05:28,419 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:05:28,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28 WrapperNode [2024-11-09 01:05:28,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:05:28,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:05:28,421 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:05:28,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:05:28,437 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,507 INFO L138 Inliner]: procedures = 502, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-09 01:05:28,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:05:28,508 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:05:28,508 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:05:28,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:05:28,518 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,518 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,523 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,523 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,538 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,540 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:05:28,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:05:28,551 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:05:28,551 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:05:28,552 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (1/1) ... [2024-11-09 01:05:28,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:05:28,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:28,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:05:28,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:05:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 01:05:28,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 01:05:28,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:05:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:05:28,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:05:28,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 01:05:28,862 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:05:28,864 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:05:28,997 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-09 01:05:28,997 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:05:29,076 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:05:29,076 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:05:29,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:05:29 BoogieIcfgContainer [2024-11-09 01:05:29,077 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:05:29,079 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:05:29,079 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:05:29,082 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:05:29,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:05:27" (1/3) ... [2024-11-09 01:05:29,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9d215f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:05:29, skipping insertion in model container [2024-11-09 01:05:29,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:28" (2/3) ... [2024-11-09 01:05:29,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a9d215f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:05:29, skipping insertion in model container [2024-11-09 01:05:29,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:05:29" (3/3) ... [2024-11-09 01:05:29,087 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_54_bad.i [2024-11-09 01:05:29,106 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:05:29,107 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 01:05:29,176 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:05:29,184 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=FINITE_AUTOMATA, 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;@5cd40dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:05:29,185 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 01:05:29,189 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-09 01:05:29,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 01:05:29,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:29,198 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:29,199 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 01:05:29,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:29,204 INFO L85 PathProgramCache]: Analyzing trace with hash -108921076, now seen corresponding path program 1 times [2024-11-09 01:05:29,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 01:05:29,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012045869] [2024-11-09 01:05:29,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:29,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 01:05:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:05:29,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 01:05:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:05:29,452 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 01:05:29,454 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 01:05:29,455 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 01:05:29,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 01:05:29,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 01:05:29,463 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 01:05:29,490 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:05:29,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:05:29 BoogieIcfgContainer [2024-11-09 01:05:29,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:05:29,495 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:05:29,495 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:05:29,497 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:05:29,497 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:05:29" (3/4) ... [2024-11-09 01:05:29,500 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 01:05:29,501 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:05:29,502 INFO L158 Benchmark]: Toolchain (without parser) took 2466.84ms. Allocated memory is still 172.0MB. Free memory was 135.4MB in the beginning and 105.2MB in the end (delta: 30.2MB). Peak memory consumption was 27.5MB. Max. memory is 16.1GB. [2024-11-09 01:05:29,503 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:05:29,504 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1383.62ms. Allocated memory is still 172.0MB. Free memory was 135.4MB in the beginning and 84.3MB in the end (delta: 51.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-11-09 01:05:29,505 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.15ms. Allocated memory is still 172.0MB. Free memory was 84.3MB in the beginning and 80.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:05:29,506 INFO L158 Benchmark]: Boogie Preprocessor took 38.43ms. Allocated memory is still 172.0MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:05:29,507 INFO L158 Benchmark]: RCFGBuilder took 530.05ms. Allocated memory is still 172.0MB. Free memory was 79.4MB in the beginning and 125.1MB in the end (delta: -45.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-11-09 01:05:29,508 INFO L158 Benchmark]: TraceAbstraction took 415.40ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 106.3MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 01:05:29,508 INFO L158 Benchmark]: Witness Printer took 6.21ms. Allocated memory is still 172.0MB. Free memory was 106.3MB in the beginning and 105.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:05:29,513 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1383.62ms. Allocated memory is still 172.0MB. Free memory was 135.4MB in the beginning and 84.3MB in the end (delta: 51.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.15ms. Allocated memory is still 172.0MB. Free memory was 84.3MB in the beginning and 80.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.43ms. Allocated memory is still 172.0MB. Free memory was 80.9MB in the beginning and 79.4MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 530.05ms. Allocated memory is still 172.0MB. Free memory was 79.4MB in the beginning and 125.1MB in the end (delta: -45.7MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * TraceAbstraction took 415.40ms. Allocated memory is still 172.0MB. Free memory was 124.1MB in the beginning and 106.3MB in the end (delta: 17.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.21ms. Allocated memory is still 172.0MB. Free memory was 106.3MB in the beginning and 105.2MB in the end (delta: 1.0MB). 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_predec_54e_badSink(data) [L1592] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1592]: 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, 16 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=16occurred 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, 8 NumberOfCodeBlocks, 8 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 [2024-11-09 01:05:29,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c250de366060070ba4c35e5dee5f788919ae086e7d982cfe0ff3210cd40565f4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 01:05:31,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 01:05:31,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-09 01:05:31,966 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 01:05:31,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 01:05:32,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 01:05:32,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 01:05:32,022 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 01:05:32,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 01:05:32,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 01:05:32,029 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 01:05:32,029 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 01:05:32,029 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 01:05:32,030 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 01:05:32,030 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 01:05:32,030 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 01:05:32,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 01:05:32,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 01:05:32,033 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 01:05:32,034 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 01:05:32,034 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 01:05:32,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 01:05:32,035 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 01:05:32,035 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 01:05:32,035 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 01:05:32,036 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 01:05:32,036 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 01:05:32,036 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 01:05:32,037 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 01:05:32,037 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 01:05:32,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 01:05:32,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 01:05:32,038 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 01:05:32,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 01:05:32,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:05:32,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 01:05:32,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 01:05:32,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 01:05:32,039 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 01:05:32,040 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 01:05:32,041 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 01:05:32,042 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 01:05:32,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c250de366060070ba4c35e5dee5f788919ae086e7d982cfe0ff3210cd40565f4 [2024-11-09 01:05:32,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 01:05:32,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 01:05:32,502 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 01:05:32,504 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 01:05:32,504 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 01:05:32,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_54_bad.i Unable to find full path for "g++" [2024-11-09 01:05:34,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 01:05:34,934 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 01:05:34,936 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_54_bad.i [2024-11-09 01:05:34,968 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/data/a5f0ce8d7/fb1eb4dac39e4949998e01b8eea081ef/FLAG57e589b92 [2024-11-09 01:05:34,990 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/data/a5f0ce8d7/fb1eb4dac39e4949998e01b8eea081ef [2024-11-09 01:05:34,994 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 01:05:34,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 01:05:34,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 01:05:34,998 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 01:05:35,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 01:05:35,004 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:05:34" (1/1) ... [2024-11-09 01:05:35,005 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c24f9dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:35, skipping insertion in model container [2024-11-09 01:05:35,005 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 01:05:34" (1/1) ... [2024-11-09 01:05:35,088 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 01:05:36,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:05:36,339 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 01:05:36,446 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 01:05:36,656 INFO L204 MainTranslator]: Completed translation [2024-11-09 01:05:36,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36 WrapperNode [2024-11-09 01:05:36,657 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 01:05:36,658 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 01:05:36,658 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 01:05:36,659 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 01:05:36,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,698 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,731 INFO L138 Inliner]: procedures = 507, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 74 [2024-11-09 01:05:36,733 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 01:05:36,734 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 01:05:36,736 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 01:05:36,736 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 01:05:36,746 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,746 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,749 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,766 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,773 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 01:05:36,774 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 01:05:36,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 01:05:36,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 01:05:36,776 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (1/1) ... [2024-11-09 01:05:36,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 01:05:36,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 01:05:36,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 01:05:36,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 01:05:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-09 01:05:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-09 01:05:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 01:05:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 01:05:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 01:05:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 01:05:37,009 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 01:05:37,011 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 01:05:37,243 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-09 01:05:37,244 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 01:05:37,260 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 01:05:37,260 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 01:05:37,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:05:37 BoogieIcfgContainer [2024-11-09 01:05:37,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 01:05:37,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 01:05:37,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 01:05:37,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 01:05:37,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 01:05:34" (1/3) ... [2024-11-09 01:05:37,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa5d815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:05:37, skipping insertion in model container [2024-11-09 01:05:37,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 01:05:36" (2/3) ... [2024-11-09 01:05:37,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fa5d815 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 01:05:37, skipping insertion in model container [2024-11-09 01:05:37,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:05:37" (3/3) ... [2024-11-09 01:05:37,270 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_54_bad.i [2024-11-09 01:05:37,290 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 01:05:37,290 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 01:05:37,363 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 01:05:37,370 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=FINITE_AUTOMATA, 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;@3ae01def, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 01:05:37,370 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 01:05:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 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) [2024-11-09 01:05:37,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 01:05:37,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 01:05:37,384 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 01:05:37,385 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 01:05:37,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 01:05:37,391 INFO L85 PathProgramCache]: Analyzing trace with hash -833969292, now seen corresponding path program 1 times [2024-11-09 01:05:37,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 01:05:37,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369481969] [2024-11-09 01:05:37,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 01:05:37,411 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:05:37,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 01:05:37,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-09 01:05:37,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-09 01:05:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:05:37,592 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 01:05:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 01:05:37,683 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 01:05:37,685 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 01:05:37,686 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 01:05:37,688 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 01:05:37,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-09 01:05:37,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-09 01:05:37,894 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 01:05:37,923 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 01:05:37,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 01:05:37 BoogieIcfgContainer [2024-11-09 01:05:37,926 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 01:05:37,927 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 01:05:37,927 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 01:05:37,927 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 01:05:37,928 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 01:05:37" (3/4) ... [2024-11-09 01:05:37,932 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 01:05:37,934 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 01:05:37,935 INFO L158 Benchmark]: Toolchain (without parser) took 2938.17ms. Allocated memory was 86.0MB in the beginning and 111.1MB in the end (delta: 25.2MB). Free memory was 57.8MB in the beginning and 59.4MB in the end (delta: -1.6MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2024-11-09 01:05:37,936 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 58.7MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:05:37,937 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1659.01ms. Allocated memory is still 86.0MB. Free memory was 57.6MB in the beginning and 51.5MB in the end (delta: 6.1MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2024-11-09 01:05:37,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.90ms. Allocated memory is still 86.0MB. Free memory was 51.5MB in the beginning and 48.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:05:37,939 INFO L158 Benchmark]: Boogie Preprocessor took 39.52ms. Allocated memory is still 86.0MB. Free memory was 48.4MB in the beginning and 46.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 01:05:37,940 INFO L158 Benchmark]: RCFGBuilder took 486.78ms. Allocated memory was 86.0MB in the beginning and 111.1MB in the end (delta: 25.2MB). Free memory was 46.4MB in the beginning and 79.7MB in the end (delta: -33.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2024-11-09 01:05:37,942 INFO L158 Benchmark]: TraceAbstraction took 662.47ms. Allocated memory is still 111.1MB. Free memory was 79.0MB in the beginning and 60.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 01:05:37,942 INFO L158 Benchmark]: Witness Printer took 6.99ms. Allocated memory is still 111.1MB. Free memory was 60.1MB in the beginning and 59.4MB in the end (delta: 706.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 01:05:37,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 58.7MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1659.01ms. Allocated memory is still 86.0MB. Free memory was 57.6MB in the beginning and 51.5MB in the end (delta: 6.1MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.90ms. Allocated memory is still 86.0MB. Free memory was 51.5MB in the beginning and 48.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.52ms. Allocated memory is still 86.0MB. Free memory was 48.4MB in the beginning and 46.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 486.78ms. Allocated memory was 86.0MB in the beginning and 111.1MB in the end (delta: 25.2MB). Free memory was 46.4MB in the beginning and 79.7MB in the end (delta: -33.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * TraceAbstraction took 662.47ms. Allocated memory is still 111.1MB. Free memory was 79.0MB in the beginning and 60.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.99ms. Allocated memory is still 111.1MB. Free memory was 60.1MB in the beginning and 59.4MB in the end (delta: 706.0kB). 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_predec_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_predec_54b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_predec_54c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_54d_badSink(data) [L1587] CALL CWE191_Integer_Underflow__int_fgets_predec_54e_badSink(data) [L1592] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1592]: 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, 27 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=27occurred 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 [2024-11-09 01:05:37,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb3f974d-2830-41fd-b2a6-90d712f00471/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample