./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_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_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:37:25,350 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:37:25,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-13 13:37:25,486 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:37:25,486 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:37:25,532 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:37:25,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:37:25,535 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:37:25,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:37:25,537 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:37:25,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:37:25,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:37:25,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:37:25,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:37:25,539 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:37:25,540 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:37:25,540 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:37:25,540 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:37:25,541 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:37:25,541 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:37:25,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:37:25,542 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:37:25,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:37:25,542 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:37:25,542 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:37:25,542 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:37:25,542 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:37:25,543 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:37:25,543 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:37:25,543 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:37:25,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:37:25,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:37:25,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:37:25,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:37:25,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:37:25,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:37:25,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:37:25,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:37:25,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:37:25,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:37:25,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:37:25,547 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a [2024-11-13 13:37:25,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:37:25,987 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:37:25,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:37:25,994 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:37:25,995 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:37:25,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i Unable to find full path for "g++" [2024-11-13 13:37:28,373 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:37:28,957 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:37:28,958 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-13 13:37:28,984 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/data/871e4f54c/c823e3c31d674f69b206b7428fb3c792/FLAG25bed0ebf [2024-11-13 13:37:29,005 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/data/871e4f54c/c823e3c31d674f69b206b7428fb3c792 [2024-11-13 13:37:29,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:37:29,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:37:29,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:37:29,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:37:29,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:37:29,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:29" (1/1) ... [2024-11-13 13:37:29,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@261d7c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:29, skipping insertion in model container [2024-11-13 13:37:29,022 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:29" (1/1) ... [2024-11-13 13:37:29,098 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:37:30,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:37:30,575 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:37:30,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:37:30,867 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:37:30,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30 WrapperNode [2024-11-13 13:37:30,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:37:30,869 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:37:30,869 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:37:30,869 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:37:30,874 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,918 INFO L138 Inliner]: procedures = 500, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 68 [2024-11-13 13:37:30,918 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:37:30,919 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:37:30,919 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:37:30,919 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:37:30,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,931 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,934 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,962 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-13 13:37:30,963 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,963 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,969 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,971 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,976 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:37:30,977 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:37:30,977 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:37:30,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:37:30,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (1/1) ... [2024-11-13 13:37:30,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:37:31,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:37:31,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:37:31,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:37:31,057 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 13:37:31,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 13:37:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:37:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:37:31,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:37:31,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:37:31,235 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:37:31,237 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:37:31,370 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-13 13:37:31,371 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:37:31,382 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:37:31,383 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:37:31,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:31 BoogieIcfgContainer [2024-11-13 13:37:31,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:37:31,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:37:31,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:37:31,396 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:37:31,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:37:29" (1/3) ... [2024-11-13 13:37:31,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555a0e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:31, skipping insertion in model container [2024-11-13 13:37:31,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:30" (2/3) ... [2024-11-13 13:37:31,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@555a0e47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:31, skipping insertion in model container [2024-11-13 13:37:31,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:31" (3/3) ... [2024-11-13 13:37:31,400 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-13 13:37:31,421 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:37:31,423 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 13:37:31,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:37:31,526 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b3c744b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:37:31,526 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 13:37:31,533 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) [2024-11-13 13:37:31,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 13:37:31,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:37:31,543 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:37:31,545 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 13:37:31,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:31,552 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times [2024-11-13 13:37:31,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:37:31,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135541244] [2024-11-13 13:37:31,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:31,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:37:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:37:31,747 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:37:31,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:37:31,810 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:37:31,812 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:37:31,813 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-13 13:37:31,816 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-13 13:37:31,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:37:31,822 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 13:37:31,863 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:37:31,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:37:31 BoogieIcfgContainer [2024-11-13 13:37:31,869 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:37:31,870 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:37:31,870 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:37:31,871 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:37:31,871 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:31" (3/4) ... [2024-11-13 13:37:31,873 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:37:31,874 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:37:31,875 INFO L158 Benchmark]: Toolchain (without parser) took 2864.88ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 47.5MB in the end (delta: 42.0MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2024-11-13 13:37:31,876 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:31,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1855.57ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 81.9MB in the end (delta: 7.6MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-13 13:37:31,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.86ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:31,877 INFO L158 Benchmark]: Boogie Preprocessor took 57.24ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 78.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:31,878 INFO L158 Benchmark]: RCFGBuilder took 407.21ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 65.3MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:31,878 INFO L158 Benchmark]: TraceAbstraction took 481.89ms. Allocated memory is still 117.4MB. Free memory was 64.7MB in the beginning and 47.5MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:37:31,878 INFO L158 Benchmark]: Witness Printer took 4.04ms. Allocated memory is still 117.4MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:31,881 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1855.57ms. Allocated memory is still 117.4MB. Free memory was 89.5MB in the beginning and 81.9MB in the end (delta: 7.6MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.86ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 79.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 57.24ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 78.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 407.21ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 65.3MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 481.89ms. Allocated memory is still 117.4MB. Free memory was 64.7MB in the beginning and 47.5MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.04ms. Allocated memory is still 117.4MB. Free memory is still 47.5MB. 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data) [L1582] data - 1 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: 1582]: 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: 0.3s, 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=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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 13:37:31,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:37:35,128 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:37:35,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-13 13:37:35,287 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:37:35,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:37:35,287 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-13 13:37:35,320 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:37:35,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:37:35,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:37:35,322 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:37:35,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:37:35,322 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:37:35,322 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:37:35,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:37:35,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:37:35,323 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:37:35,323 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:37:35,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:37:35,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:37:35,324 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:37:35,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:37:35,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:37:35,324 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:37:35,325 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:37:35,325 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:37:35,325 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:37:35,325 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:37:35,325 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:37:35,325 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:37:35,326 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:37:35,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:37:35,326 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:37:35,326 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:37:35,326 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:37:35,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:37:35,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:37:35,327 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b8f30f42ac2262e4c0238074a397f3a849c6fa8d29c1aeac0beaccd636a109a [2024-11-13 13:37:35,702 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:37:35,713 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:37:35,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:37:35,717 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:37:35,721 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:37:35,723 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i Unable to find full path for "g++" [2024-11-13 13:37:37,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:37:38,438 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:37:38,443 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-13 13:37:38,490 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/data/bc1959227/897d33fe8435442f9f3befbcc3175a5f/FLAG17121bfac [2024-11-13 13:37:38,515 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/data/bc1959227/897d33fe8435442f9f3befbcc3175a5f [2024-11-13 13:37:38,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:37:38,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:37:38,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:37:38,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:37:38,531 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:37:38,532 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:38" (1/1) ... [2024-11-13 13:37:38,534 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e3ad93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:38, skipping insertion in model container [2024-11-13 13:37:38,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:37:38" (1/1) ... [2024-11-13 13:37:38,620 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:37:39,817 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:37:39,833 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:37:40,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:37:40,281 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:37:40,282 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40 WrapperNode [2024-11-13 13:37:40,282 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:37:40,284 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:37:40,284 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:37:40,284 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:37:40,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,328 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,358 INFO L138 Inliner]: procedures = 505, calls = 29, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 67 [2024-11-13 13:37:40,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:37:40,359 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:37:40,359 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:37:40,359 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:37:40,373 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,373 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,377 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,397 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-13 13:37:40,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,407 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,418 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:37:40,419 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:37:40,419 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:37:40,419 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:37:40,420 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (1/1) ... [2024-11-13 13:37:40,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:37:40,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:37:40,459 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:37:40,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:37:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-13 13:37:40,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-13 13:37:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:37:40,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:37:40,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:37:40,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:37:40,730 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:37:40,733 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:37:40,976 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-13 13:37:40,976 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:37:40,992 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:37:40,992 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 13:37:40,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:40 BoogieIcfgContainer [2024-11-13 13:37:40,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:37:40,995 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:37:40,996 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:37:41,001 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:37:41,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:37:38" (1/3) ... [2024-11-13 13:37:41,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d744eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:41, skipping insertion in model container [2024-11-13 13:37:41,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:37:40" (2/3) ... [2024-11-13 13:37:41,003 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17d744eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:37:41, skipping insertion in model container [2024-11-13 13:37:41,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:40" (3/3) ... [2024-11-13 13:37:41,005 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i [2024-11-13 13:37:41,023 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:37:41,025 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_52_bad.i that has 2 procedures, 25 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-11-13 13:37:41,126 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:37:41,148 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a9e211c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:37:41,150 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 13:37:41,155 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) [2024-11-13 13:37:41,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 13:37:41,167 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:37:41,168 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:37:41,169 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-13 13:37:41,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:37:41,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2097187180, now seen corresponding path program 1 times [2024-11-13 13:37:41,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:37:41,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1314043019] [2024-11-13 13:37:41,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:37:41,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:37:41,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:37:41,200 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:37:41,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:37:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:37:41,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:37:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:37:41,503 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 13:37:41,505 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:37:41,506 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-13 13:37:41,509 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-13 13:37:41,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:37:41,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:37:41,717 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 13:37:41,742 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:37:41,746 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:37:41 BoogieIcfgContainer [2024-11-13 13:37:41,747 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:37:41,747 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:37:41,748 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:37:41,748 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:37:41,749 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:37:40" (3/4) ... [2024-11-13 13:37:41,752 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:37:41,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:37:41,754 INFO L158 Benchmark]: Toolchain (without parser) took 3233.41ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 38.5MB in the end (delta: 18.6MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:41,755 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:41,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1758.31ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 50.9MB in the end (delta: 6.2MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:41,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.67ms. Allocated memory is still 83.9MB. Free memory was 50.9MB in the beginning and 48.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:41,756 INFO L158 Benchmark]: Boogie Preprocessor took 59.13ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 46.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:41,757 INFO L158 Benchmark]: RCFGBuilder took 574.25ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 32.5MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:37:41,758 INFO L158 Benchmark]: TraceAbstraction took 751.35ms. Allocated memory is still 83.9MB. Free memory was 31.7MB in the beginning and 38.9MB in the end (delta: -7.1MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. [2024-11-13 13:37:41,758 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 83.9MB. Free memory was 38.9MB in the beginning and 38.5MB in the end (delta: 418.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:37:41,761 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 65.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1758.31ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 50.9MB in the end (delta: 6.2MB). Peak memory consumption was 58.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.67ms. Allocated memory is still 83.9MB. Free memory was 50.9MB in the beginning and 48.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.13ms. Allocated memory is still 83.9MB. Free memory was 48.2MB in the beginning and 46.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 574.25ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 32.5MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 751.35ms. Allocated memory is still 83.9MB. Free memory was 31.7MB in the beginning and 38.9MB in the end (delta: -7.1MB). Peak memory consumption was 1.6MB. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 83.9MB. Free memory was 38.9MB in the beginning and 38.5MB in the end (delta: 418.8kB). 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of large string literal at line 1569, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_52b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_52c_badSink(data) [L1582] data - 1 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: 1582]: 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 13:37:41,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_860c5104-c2aa-46bb-ad67-2c621a66f3d5/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample