./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_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_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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_c40caa94-5880-4cd9-bee2-6a390568f903/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 6b731b3e45cc745fc26f764e451c6f49e1c269922dce2bfc9965f3cdd36e32cc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:23:08,016 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:23:08,125 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Default.epf [2024-11-14 03:23:08,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:23:08,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:23:08,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:23:08,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:23:08,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:23:08,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:23:08,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:23:08,178 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:23:08,179 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:23:08,179 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:23:08,179 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 03:23:08,179 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:23:08,179 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:23:08,179 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 03:23:08,179 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 03:23:08,179 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:23:08,181 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 03:23:08,182 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 03:23:08,182 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 03:23:08,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:23:08,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:23:08,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 03:23:08,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:23:08,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:23:08,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:23:08,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:23:08,183 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:23:08,184 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:23:08,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:23:08,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:23:08,184 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:23:08,184 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:23:08,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:23:08,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:23:08,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:23:08,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:23:08,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:23:08,185 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:23:08,185 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 03:23:08,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 03:23:08,185 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:23:08,186 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:23:08,186 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 03:23:08,186 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_c40caa94-5880-4cd9-bee2-6a390568f903/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 -> 6b731b3e45cc745fc26f764e451c6f49e1c269922dce2bfc9965f3cdd36e32cc [2024-11-14 03:23:08,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:23:08,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:23:08,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:23:08,531 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:23:08,532 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:23:08,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i Unable to find full path for "g++" [2024-11-14 03:23:10,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:23:11,049 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:23:11,050 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i [2024-11-14 03:23:11,075 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/data/b88c1e798/1687a9e578cd44a590c4e121838af7e7/FLAG4dd353499 [2024-11-14 03:23:11,089 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/data/b88c1e798/1687a9e578cd44a590c4e121838af7e7 [2024-11-14 03:23:11,091 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:23:11,093 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:23:11,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:23:11,095 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:23:11,100 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:23:11,101 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:23:11" (1/1) ... [2024-11-14 03:23:11,104 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50100670 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:11, skipping insertion in model container [2024-11-14 03:23:11,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:23:11" (1/1) ... [2024-11-14 03:23:11,162 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:23:12,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:23:12,132 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:23:12,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:23:12,378 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:23:12,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12 WrapperNode [2024-11-14 03:23:12,379 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:23:12,380 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:23:12,380 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:23:12,380 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:23:12,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,425 INFO L138 Inliner]: procedures = 498, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-11-14 03:23:12,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:23:12,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:23:12,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:23:12,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:23:12,434 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,436 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,437 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,442 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,446 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,449 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:23:12,450 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:23:12,451 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:23:12,451 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:23:12,455 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (1/1) ... [2024-11-14 03:23:12,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:23:12,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:12,499 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:23:12,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:23:12,530 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 03:23:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 03:23:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:23:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:23:12,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:23:12,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 03:23:12,688 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:23:12,690 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:23:12,813 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-14 03:23:12,813 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:23:12,860 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:23:12,860 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:23:12,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:12 BoogieIcfgContainer [2024-11-14 03:23:12,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:23:12,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:23:12,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:23:12,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:23:12,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:23:11" (1/3) ... [2024-11-14 03:23:12,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6829f437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:23:12, skipping insertion in model container [2024-11-14 03:23:12,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:12" (2/3) ... [2024-11-14 03:23:12,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6829f437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:23:12, skipping insertion in model container [2024-11-14 03:23:12,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:12" (3/3) ... [2024-11-14 03:23:12,872 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i [2024-11-14 03:23:12,888 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:23:12,889 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i that has 2 procedures, 16 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 03:23:12,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:23:12,953 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;@3bfdd1e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:23:12,954 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:23:12,957 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) [2024-11-14 03:23:12,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-14 03:23:12,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:12,965 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:12,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:23:12,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:12,970 INFO L85 PathProgramCache]: Analyzing trace with hash 2080301113, now seen corresponding path program 1 times [2024-11-14 03:23:12,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:23:12,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080201478] [2024-11-14 03:23:12,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:12,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:23:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:23:13,104 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:23:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:23:13,161 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-14 03:23:13,163 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:23:13,164 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 03:23:13,166 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 03:23:13,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 03:23:13,172 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:23:13,203 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:23:13,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:23:13 BoogieIcfgContainer [2024-11-14 03:23:13,208 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:23:13,209 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:23:13,209 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:23:13,209 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:23:13,210 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:12" (3/4) ... [2024-11-14 03:23:13,212 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:23:13,213 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:23:13,215 INFO L158 Benchmark]: Toolchain (without parser) took 2121.33ms. Allocated memory is still 142.6MB. Free memory was 114.9MB in the beginning and 72.7MB in the end (delta: 42.2MB). Peak memory consumption was 41.3MB. Max. memory is 16.1GB. [2024-11-14 03:23:13,218 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:23:13,218 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1284.19ms. Allocated memory is still 142.6MB. Free memory was 114.6MB in the beginning and 106.6MB in the end (delta: 8.0MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. [2024-11-14 03:23:13,218 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.29ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 103.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:23:13,219 INFO L158 Benchmark]: Boogie Preprocessor took 22.61ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 102.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:23:13,219 INFO L158 Benchmark]: RCFGBuilder took 410.22ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 88.2MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:23:13,219 INFO L158 Benchmark]: TraceAbstraction took 344.82ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 73.2MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-14 03:23:13,219 INFO L158 Benchmark]: Witness Printer took 4.77ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 72.7MB in the end (delta: 585.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:23:13,223 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1284.19ms. Allocated memory is still 142.6MB. Free memory was 114.6MB in the beginning and 106.6MB in the end (delta: 8.0MB). Peak memory consumption was 66.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.29ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 103.7MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.61ms. Allocated memory is still 142.6MB. Free memory was 103.7MB in the beginning and 102.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 410.22ms. Allocated memory is still 142.6MB. Free memory was 102.5MB in the beginning and 88.2MB in the end (delta: 14.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 344.82ms. Allocated memory is still 142.6MB. Free memory was 87.6MB in the beginning and 73.2MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.77ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 72.7MB in the end (delta: 585.2kB). 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1556. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_18_bad() [L1550] int data; [L1551] data = 0 [L1555] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] 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: 1568]: 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, 0.0s 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 [2024-11-14 03:23:13,256 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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_c40caa94-5880-4cd9-bee2-6a390568f903/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 6b731b3e45cc745fc26f764e451c6f49e1c269922dce2bfc9965f3cdd36e32cc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 03:23:15,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 03:23:16,054 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2024-11-14 03:23:16,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 03:23:16,061 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 03:23:16,085 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 03:23:16,086 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 03:23:16,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 03:23:16,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 03:23:16,087 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 03:23:16,087 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 03:23:16,087 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 03:23:16,087 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 03:23:16,087 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 03:23:16,087 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 03:23:16,088 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 03:23:16,088 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 03:23:16,088 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 03:23:16,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 03:23:16,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 03:23:16,089 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 03:23:16,089 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 03:23:16,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-14 03:23:16,089 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-14 03:23:16,089 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 03:23:16,089 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-14 03:23:16,090 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-14 03:23:16,090 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 03:23:16,090 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 03:23:16,090 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 03:23:16,090 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 03:23:16,090 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-14 03:23:16,091 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 03:23:16,091 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 03:23:16,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:23:16,091 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 03:23:16,091 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 03:23:16,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 03:23:16,092 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-14 03:23:16,092 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-14 03:23:16,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 03:23:16,092 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 03:23:16,092 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_c40caa94-5880-4cd9-bee2-6a390568f903/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 -> 6b731b3e45cc745fc26f764e451c6f49e1c269922dce2bfc9965f3cdd36e32cc [2024-11-14 03:23:16,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 03:23:16,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 03:23:16,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 03:23:16,455 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 03:23:16,455 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 03:23:16,457 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i Unable to find full path for "g++" [2024-11-14 03:23:18,521 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 03:23:19,084 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 03:23:19,084 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i [2024-11-14 03:23:19,125 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/data/d8965cc67/8706dc62d2b24207a393bec20b671c90/FLAGd1101ef8b [2024-11-14 03:23:19,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/data/d8965cc67/8706dc62d2b24207a393bec20b671c90 [2024-11-14 03:23:19,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 03:23:19,161 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 03:23:19,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 03:23:19,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 03:23:19,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 03:23:19,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:23:19" (1/1) ... [2024-11-14 03:23:19,173 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368e407d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:19, skipping insertion in model container [2024-11-14 03:23:19,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 03:23:19" (1/1) ... [2024-11-14 03:23:19,251 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 03:23:20,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:23:20,279 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 03:23:20,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 03:23:20,588 INFO L204 MainTranslator]: Completed translation [2024-11-14 03:23:20,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20 WrapperNode [2024-11-14 03:23:20,589 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 03:23:20,590 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 03:23:20,590 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 03:23:20,591 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 03:23:20,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,637 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,668 INFO L138 Inliner]: procedures = 503, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2024-11-14 03:23:20,671 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 03:23:20,672 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 03:23:20,672 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 03:23:20,672 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 03:23:20,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,709 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,711 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,718 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,719 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 03:23:20,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 03:23:20,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 03:23:20,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 03:23:20,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (1/1) ... [2024-11-14 03:23:20,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 03:23:20,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:23:20,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 03:23:20,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 03:23:20,797 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-14 03:23:20,797 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-14 03:23:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-14 03:23:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 03:23:20,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 03:23:20,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 03:23:20,988 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 03:23:20,990 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 03:23:21,164 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-14 03:23:21,166 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 03:23:21,178 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 03:23:21,178 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-14 03:23:21,178 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:21 BoogieIcfgContainer [2024-11-14 03:23:21,178 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 03:23:21,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 03:23:21,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 03:23:21,186 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 03:23:21,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 03:23:19" (1/3) ... [2024-11-14 03:23:21,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53908d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:23:21, skipping insertion in model container [2024-11-14 03:23:21,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 03:23:20" (2/3) ... [2024-11-14 03:23:21,187 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53908d7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 03:23:21, skipping insertion in model container [2024-11-14 03:23:21,187 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:21" (3/3) ... [2024-11-14 03:23:21,188 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i [2024-11-14 03:23:21,204 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 03:23:21,206 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_postdec_18_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-14 03:23:21,315 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 03:23:21,350 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;@2e45e83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 03:23:21,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-14 03:23:21,357 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 20 states have internal predecessors, (22), 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 03:23:21,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-14 03:23:21,372 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:23:21,372 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:23:21,373 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-14 03:23:21,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:23:21,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1056177233, now seen corresponding path program 1 times [2024-11-14 03:23:21,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-14 03:23:21,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14476588] [2024-11-14 03:23:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:23:21,393 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 03:23:21,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/mathsat [2024-11-14 03:23:21,397 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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 03:23:21,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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 03:23:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:23:21,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-14 03:23:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-14 03:23:21,694 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-14 03:23:21,696 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-14 03:23:21,698 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-14 03:23:21,700 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-14 03:23:21,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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 03:23:21,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/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 03:23:21,904 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-14 03:23:21,930 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 03:23:21,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 03:23:21 BoogieIcfgContainer [2024-11-14 03:23:21,933 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 03:23:21,935 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 03:23:21,935 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 03:23:21,935 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 03:23:21,938 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 03:23:21" (3/4) ... [2024-11-14 03:23:21,941 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-14 03:23:21,942 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 03:23:21,943 INFO L158 Benchmark]: Toolchain (without parser) took 2782.69ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 78.9MB in the end (delta: 12.2MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2024-11-14 03:23:21,943 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:23:21,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1425.61ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 76.9MB in the end (delta: 13.9MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. [2024-11-14 03:23:21,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.15ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 73.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:23:21,944 INFO L158 Benchmark]: Boogie Preprocessor took 53.81ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 71.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:23:21,945 INFO L158 Benchmark]: RCFGBuilder took 452.36ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 58.1MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 03:23:21,945 INFO L158 Benchmark]: TraceAbstraction took 752.45ms. Allocated memory is still 117.4MB. Free memory was 58.1MB in the beginning and 78.9MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:23:21,945 INFO L158 Benchmark]: Witness Printer took 7.07ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 78.9MB in the end (delta: 19.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 03:23:21,951 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 47.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1425.61ms. Allocated memory is still 117.4MB. Free memory was 90.8MB in the beginning and 76.9MB in the end (delta: 13.9MB). Peak memory consumption was 58.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.15ms. Allocated memory is still 117.4MB. Free memory was 76.9MB in the beginning and 73.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 53.81ms. Allocated memory is still 117.4MB. Free memory was 73.7MB in the beginning and 71.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 452.36ms. Allocated memory is still 117.4MB. Free memory was 71.8MB in the beginning and 58.1MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 752.45ms. Allocated memory is still 117.4MB. Free memory was 58.1MB in the beginning and 78.9MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.07ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 78.9MB in the end (delta: 19.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558, overapproximation of large string literal at line 1576, overapproximation of fgets at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE191_Integer_Underflow__int_fgets_postdec_18_bad() [L1550] int data; [L1551] data = 0 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] 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] [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1568] 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: 1568]: 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: 0.6s, 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=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, 13 NumberOfCodeBlocks, 13 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 03:23:21,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c40caa94-5880-4cd9-bee2-6a390568f903/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample