./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E --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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:14:31,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:14:31,490 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 03:14:31,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:14:31,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:14:31,527 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:14:31,528 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:14:31,528 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:14:31,529 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:14:31,529 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:14:31,529 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:14:31,529 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:14:31,529 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:14:31,529 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:14:31,529 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:14:31,530 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:14:31,530 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:14:31,530 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:14:31,530 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:14:31,530 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:14:31,530 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:14:31,530 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:14:31,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:14:31,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:14:31,532 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:14:31,532 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:14:31,532 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:14:31,532 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:14:31,533 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:14:31,533 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:14:31,533 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:14:31,533 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:14:31,533 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:14:31,533 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:14:31,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:14:31,534 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:14:31,534 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:14:31,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:14:31,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:14:31,535 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:14:31,535 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:14:31,535 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:14:31,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:14:31,535 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:14:31,535 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:14:31,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:14:31,536 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E 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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-11-14 03:14:31,887 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:14:31,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:14:31,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:14:31,911 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:14:31,911 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:14:31,914 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i Unable to find full path for "g++" [2024-11-14 03:14:34,270 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:14:34,861 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:14:34,865 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-14 03:14:34,910 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/data/a4b4ceb3f/20d28acfa19042fab6bb9fc898f83408/FLAGa9596d793 [2024-11-14 03:14:34,936 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/data/a4b4ceb3f/20d28acfa19042fab6bb9fc898f83408 [2024-11-14 03:14:34,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:14:34,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:14:34,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:14:34,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:14:34,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:14:34,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:14:34" (1/1) ... [2024-11-14 03:14:34,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@463c3262 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:34, skipping insertion in model container [2024-11-14 03:14:34,956 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:14:34" (1/1) ... [2024-11-14 03:14:35,036 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:14:36,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:14:36,251 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:14:36,429 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:14:36,566 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:14:36,566 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36 WrapperNode [2024-11-14 03:14:36,567 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:14:36,568 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:14:36,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:14:36,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:14:36,576 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,599 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,629 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 72 [2024-11-14 03:14:36,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:14:36,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:14:36,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:14:36,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:14:36,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,653 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:14:36,660 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:14:36,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:14:36,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:14:36,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (1/1) ... [2024-11-14 03:14:36,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:14:36,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:14:36,712 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:14:36,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:14:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 03:14:36,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 03:14:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:14:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:14:36,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:14:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:14:37,013 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:14:37,016 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:14:37,226 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-14 03:14:37,226 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:14:37,295 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:14:37,295 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:14:37,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:14:37 BoogieIcfgContainer [2024-11-14 03:14:37,295 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:14:37,302 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:14:37,302 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:14:37,308 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:14:37,308 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:14:34" (1/3) ... [2024-11-14 03:14:37,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0513d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:14:37, skipping insertion in model container [2024-11-14 03:14:37,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:36" (2/3) ... [2024-11-14 03:14:37,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c0513d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:14:37, skipping insertion in model container [2024-11-14 03:14:37,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:14:37" (3/3) ... [2024-11-14 03:14:37,313 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-14 03:14:37,336 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:14:37,338 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_predec_21_bad.i that has 2 procedures, 18 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 03:14:37,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:14:37,418 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;@44df7993, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:14:37,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:14:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 13 states have internal predecessors, (15), 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) [2024-11-14 03:14:37,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-14 03:14:37,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:14:37,433 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:14:37,434 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:14:37,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:14:37,440 INFO L85 PathProgramCache]: Analyzing trace with hash 131819525, now seen corresponding path program 1 times [2024-11-14 03:14:37,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:14:37,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837031222] [2024-11-14 03:14:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:37,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:14:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:14:37,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:14:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:14:37,718 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:14:37,720 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:14:37,722 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 03:14:37,725 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 03:14:37,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:14:37,730 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:14:37,755 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:14:37,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:14:37 BoogieIcfgContainer [2024-11-14 03:14:37,759 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:14:37,759 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:14:37,760 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:14:37,760 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:14:37,761 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:14:37" (3/4) ... [2024-11-14 03:14:37,763 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:14:37,765 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:14:37,766 INFO L158 Benchmark]: Toolchain (without parser) took 2823.82ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 47.8MB in the end (delta: 44.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2024-11-14 03:14:37,766 INFO L158 Benchmark]: CDTParser took 1.93ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:14:37,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1622.89ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 83.4MB in the end (delta: 8.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-14 03:14:37,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.25ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 80.9MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:14:37,768 INFO L158 Benchmark]: Boogie Preprocessor took 28.23ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:14:37,768 INFO L158 Benchmark]: RCFGBuilder took 635.88ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 65.0MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:14:37,769 INFO L158 Benchmark]: TraceAbstraction took 457.06ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 48.4MB in the end (delta: 16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:14:37,769 INFO L158 Benchmark]: Witness Printer took 5.24ms. Allocated memory is still 117.4MB. Free memory was 48.4MB in the beginning and 47.8MB in the end (delta: 591.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:14:37,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.93ms. Allocated memory is still 142.6MB. Free memory is still 79.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1622.89ms. Allocated memory is still 117.4MB. Free memory was 91.6MB in the beginning and 83.4MB in the end (delta: 8.2MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.25ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 80.9MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.23ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 635.88ms. Allocated memory is still 117.4MB. Free memory was 79.7MB in the beginning and 65.0MB in the end (delta: 14.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 457.06ms. Allocated memory is still 117.4MB. Free memory was 64.5MB in the beginning and 48.4MB in the end (delta: 16.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 5.24ms. Allocated memory is still 117.4MB. Free memory was 48.4MB in the beginning and 47.8MB in the end (delta: 591.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int badStatic = 0; [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1554]: 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, 18 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=18occurred 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, 9 NumberOfCodeBlocks, 9 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 [2024-11-14 03:14:37,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E --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 b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:14:41,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:14:41,318 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-14 03:14:41,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:14:41,330 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:14:41,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:14:41,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:14:41,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:14:41,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:14:41,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:14:41,369 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:14:41,369 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:14:41,369 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:14:41,369 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:14:41,369 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:14:41,369 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:14:41,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:14:41,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:14:41,370 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:14:41,370 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:14:41,370 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:14:41,370 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:14:41,370 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:14:41,371 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:14:41,371 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:14:41,371 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:14:41,371 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:14:41,371 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:14:41,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:14:41,371 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:14:41,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:14:41,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:14:41,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:14:41,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:14:41,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:14:41,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:14:41,372 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:14:41,372 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:14:41,372 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:14:41,373 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:14:41,373 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:14:41,373 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:14:41,373 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E 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 -> b3dda94dbaa4019f2d6b4807d8dac24168aa09a3e6ed50d0ed1e738e226c7fcb [2024-11-14 03:14:41,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:14:41,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:14:41,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:14:41,746 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:14:41,747 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:14:41,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i Unable to find full path for "g++" [2024-11-14 03:14:44,030 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:14:44,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:14:44,650 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-14 03:14:44,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/data/a70767ae9/adf465fcfaeb44df8d65a5c23d02e4bc/FLAG1ffcadc74 [2024-11-14 03:14:44,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/data/a70767ae9/adf465fcfaeb44df8d65a5c23d02e4bc [2024-11-14 03:14:44,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:14:44,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:14:44,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:14:44,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:14:44,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:14:44,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:14:44" (1/1) ... [2024-11-14 03:14:44,746 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41e8895e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:44, skipping insertion in model container [2024-11-14 03:14:44,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:14:44" (1/1) ... [2024-11-14 03:14:44,825 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:14:46,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:14:46,214 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:14:46,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:14:46,632 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:14:46,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46 WrapperNode [2024-11-14 03:14:46,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:14:46,634 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:14:46,634 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:14:46,634 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:14:46,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,724 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 71 [2024-11-14 03:14:46,724 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:14:46,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:14:46,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:14:46,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:14:46,737 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,770 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,777 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:14:46,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:14:46,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:14:46,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:14:46,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (1/1) ... [2024-11-14 03:14:46,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:14:46,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:14:46,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:14:46,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:14:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 03:14:46,875 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 03:14:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:14:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:14:46,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:14:46,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:14:47,052 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:14:47,054 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:14:47,217 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-14 03:14:47,217 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:14:47,228 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:14:47,230 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:14:47,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:14:47 BoogieIcfgContainer [2024-11-14 03:14:47,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:14:47,234 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:14:47,235 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:14:47,241 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:14:47,241 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:14:44" (1/3) ... [2024-11-14 03:14:47,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1048dc09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:14:47, skipping insertion in model container [2024-11-14 03:14:47,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:14:46" (2/3) ... [2024-11-14 03:14:47,242 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1048dc09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:14:47, skipping insertion in model container [2024-11-14 03:14:47,242 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:14:47" (3/3) ... [2024-11-14 03:14:47,244 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_21_bad.i [2024-11-14 03:14:47,264 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:14:47,267 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_predec_21_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 03:14:47,349 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:14:47,362 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;@b59f433, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:14:47,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:14:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 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) [2024-11-14 03:14:47,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-14 03:14:47,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:14:47,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:14:47,377 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:14:47,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:14:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash 84640165, now seen corresponding path program 1 times [2024-11-14 03:14:47,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:14:47,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [43698249] [2024-11-14 03:14:47,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:14:47,398 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 [2024-11-14 03:14:47,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:14:47,401 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/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) [2024-11-14 03:14:47,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:14:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:14:47,698 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:14:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:14:47,797 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 03:14:47,799 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:14:47,801 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 03:14:47,803 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 03:14:47,813 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:14:48,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/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 [2024-11-14 03:14:48,012 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:14:48,038 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:14:48,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:14:48 BoogieIcfgContainer [2024-11-14 03:14:48,042 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:14:48,043 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:14:48,043 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:14:48,044 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:14:48,044 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:14:47" (3/4) ... [2024-11-14 03:14:48,048 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:14:48,049 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:14:48,050 INFO L158 Benchmark]: Toolchain (without parser) took 3315.94ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 89.2MB in the beginning and 222.2MB in the end (delta: -133.0MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2024-11-14 03:14:48,051 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 117.4MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:14:48,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1896.35ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 66.6MB in the end (delta: 22.4MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-14 03:14:48,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.97ms. Allocated memory is still 117.4MB. Free memory was 66.6MB in the beginning and 64.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:14:48,052 INFO L158 Benchmark]: Boogie Preprocessor took 63.94ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 62.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:14:48,053 INFO L158 Benchmark]: RCFGBuilder took 441.59ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 48.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:14:48,054 INFO L158 Benchmark]: TraceAbstraction took 808.13ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 47.7MB in the beginning and 222.9MB in the end (delta: -175.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:14:48,054 INFO L158 Benchmark]: Witness Printer took 5.82ms. Allocated memory is still 260.0MB. Free memory was 222.9MB in the beginning and 222.2MB in the end (delta: 700.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:14:48,057 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65ms. Allocated memory is still 117.4MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1896.35ms. Allocated memory is still 117.4MB. Free memory was 89.0MB in the beginning and 66.6MB in the end (delta: 22.4MB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.97ms. Allocated memory is still 117.4MB. Free memory was 66.6MB in the beginning and 64.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.94ms. Allocated memory is still 117.4MB. Free memory was 64.1MB in the beginning and 62.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 441.59ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 48.2MB in the end (delta: 14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 808.13ms. Allocated memory was 117.4MB in the beginning and 260.0MB in the end (delta: 142.6MB). Free memory was 47.7MB in the beginning and 222.9MB in the end (delta: -175.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.82ms. Allocated memory is still 260.0MB. Free memory was 222.9MB in the beginning and 222.2MB in the end (delta: 700.4kB). 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: 1554]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568, overapproximation of large string literal at line 1581, overapproximation of fgets at line 1566. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int badStatic = 0; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_predec_21_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=0, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1575] badStatic = 1 [L1576] CALL badSink(data) [L1551] COND TRUE \read(badStatic) VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] --data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, badStatic=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1554]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-14 03:14:48,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5c771a9-62ed-413e-9f82-3f5ab45ff4fa/bin/utaipan-verify-sOmjnqqW8E/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