./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:48:28,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:48:28,489 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 16:48:28,493 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:48:28,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:48:28,517 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:48:28,518 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:48:28,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:48:28,519 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:48:28,520 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:48:28,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:48:28,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:48:28,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:48:28,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:48:28,529 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:48:28,529 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:48:28,529 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:48:28,530 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:48:28,530 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:48:28,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:48:28,530 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:48:28,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:48:28,535 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:48:28,536 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:48:28,536 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:48:28,536 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:48:28,537 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:48:28,537 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:48:28,537 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:48:28,537 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:48:28,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:48:28,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:48:28,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:48:28,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:48:28,539 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:48:28,539 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:48:28,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:48:28,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:48:28,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:48:28,542 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:48:28,542 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:48:28,544 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 [2024-11-08 16:48:28,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:48:28,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:48:28,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:48:28,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:48:28,872 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:48:28,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i Unable to find full path for "g++" [2024-11-08 16:48:31,067 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:48:31,484 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:48:31,485 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-11-08 16:48:31,530 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/data/c99af9623/6e2a5ef137af467bb95144227e5f2731/FLAG3becd57a7 [2024-11-08 16:48:31,551 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/data/c99af9623/6e2a5ef137af467bb95144227e5f2731 [2024-11-08 16:48:31,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:48:31,559 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:48:31,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:48:31,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:48:31,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:48:31,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:48:31" (1/1) ... [2024-11-08 16:48:31,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7caf2f4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:31, skipping insertion in model container [2024-11-08 16:48:31,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:48:31" (1/1) ... [2024-11-08 16:48:31,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:48:33,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:48:33,027 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:48:33,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:48:33,455 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:48:33,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33 WrapperNode [2024-11-08 16:48:33,456 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:48:33,458 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:48:33,458 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:48:33,458 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:48:33,469 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,557 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 71 [2024-11-08 16:48:33,558 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:48:33,558 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:48:33,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:48:33,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:48:33,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,578 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,615 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-08 16:48:33,618 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,618 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,626 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,632 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,641 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:48:33,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:48:33,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:48:33,648 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:48:33,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (1/1) ... [2024-11-08 16:48:33,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:48:33,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:33,696 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:48:33,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:48:33,741 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 16:48:33,741 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 16:48:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:48:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:48:33,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:48:33,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:48:33,991 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:48:33,994 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:48:34,189 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 16:48:34,189 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:48:34,204 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:48:34,204 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:48:34,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:48:34 BoogieIcfgContainer [2024-11-08 16:48:34,205 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:48:34,208 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:48:34,209 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:48:34,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:48:34,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:48:31" (1/3) ... [2024-11-08 16:48:34,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579dfd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:48:34, skipping insertion in model container [2024-11-08 16:48:34,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:33" (2/3) ... [2024-11-08 16:48:34,215 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@579dfd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:48:34, skipping insertion in model container [2024-11-08 16:48:34,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:48:34" (3/3) ... [2024-11-08 16:48:34,217 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-11-08 16:48:34,240 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:48:34,241 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:48:34,342 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:48:34,354 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;@bce245f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:48:34,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:48:34,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:48:34,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 16:48:34,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:34,376 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:34,376 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 16:48:34,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:34,386 INFO L85 PathProgramCache]: Analyzing trace with hash -586897251, now seen corresponding path program 1 times [2024-11-08 16:48:34,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:48:34,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181234363] [2024-11-08 16:48:34,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:34,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:48:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:48:34,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:48:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:48:34,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 16:48:34,718 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:48:34,720 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 16:48:34,723 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 16:48:34,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:48:34,729 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:48:34,754 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:48:34,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:48:34 BoogieIcfgContainer [2024-11-08 16:48:34,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:48:34,758 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:48:34,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:48:34,759 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:48:34,760 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:48:34" (3/4) ... [2024-11-08 16:48:34,763 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:48:34,764 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:48:34,765 INFO L158 Benchmark]: Toolchain (without parser) took 3206.13ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 94.4MB in the beginning and 133.2MB in the end (delta: -38.8MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2024-11-08 16:48:34,766 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 100.7MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:48:34,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1895.55ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 94.0MB in the beginning and 115.6MB in the end (delta: -21.6MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. [2024-11-08 16:48:34,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.29ms. Allocated memory is still 186.6MB. Free memory was 115.6MB in the beginning and 112.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:48:34,768 INFO L158 Benchmark]: Boogie Preprocessor took 88.03ms. Allocated memory is still 186.6MB. Free memory was 112.7MB in the beginning and 110.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:48:34,769 INFO L158 Benchmark]: RCFGBuilder took 558.17ms. Allocated memory is still 186.6MB. Free memory was 110.2MB in the beginning and 95.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 16:48:34,770 INFO L158 Benchmark]: TraceAbstraction took 549.19ms. Allocated memory is still 186.6MB. Free memory was 94.6MB in the beginning and 134.2MB in the end (delta: -39.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:48:34,770 INFO L158 Benchmark]: Witness Printer took 5.96ms. Allocated memory is still 186.6MB. Free memory was 134.2MB in the beginning and 133.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:48:34,774 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 100.7MB. Free memory is still 52.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1895.55ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 94.0MB in the beginning and 115.6MB in the end (delta: -21.6MB). Peak memory consumption was 42.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.29ms. Allocated memory is still 186.6MB. Free memory was 115.6MB in the beginning and 112.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.03ms. Allocated memory is still 186.6MB. Free memory was 112.7MB in the beginning and 110.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 558.17ms. Allocated memory is still 186.6MB. Free memory was 110.2MB in the beginning and 95.9MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 549.19ms. Allocated memory is still 186.6MB. Free memory was 94.6MB in the beginning and 134.2MB in the end (delta: -39.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.96ms. Allocated memory is still 186.6MB. Free memory was 134.2MB in the beginning and 133.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1588]: 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_multiply_53_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_multiply_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_53d_badSink(data) [L1586] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1588] data * 2 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: 1588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 16:48:34,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:48:37,478 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:48:37,579 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 16:48:37,587 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:48:37,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:48:37,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 16:48:37,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:48:37,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:48:37,636 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:48:37,636 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:48:37,637 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:48:37,637 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:48:37,638 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:48:37,638 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:48:37,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:48:37,641 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:48:37,643 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:48:37,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:48:37,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:48:37,644 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:48:37,644 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:48:37,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:48:37,648 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 16:48:37,648 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 16:48:37,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:48:37,649 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 16:48:37,649 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 16:48:37,650 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 16:48:37,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:48:37,650 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:48:37,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:48:37,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:48:37,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:48:37,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:48:37,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:48:37,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:48:37,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:48:37,656 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:48:37,656 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 16:48:37,656 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 16:48:37,656 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:48:37,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:48:37,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:48:37,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:48:37,659 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 [2024-11-08 16:48:38,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:48:38,093 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:48:38,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:48:38,098 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:48:38,098 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:48:38,100 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i Unable to find full path for "g++" [2024-11-08 16:48:40,583 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:48:41,017 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:48:41,017 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-11-08 16:48:41,045 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/data/3aad627eb/7c51ef26259c4d48b554a7195f86e356/FLAG3a0bbd710 [2024-11-08 16:48:41,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/data/3aad627eb/7c51ef26259c4d48b554a7195f86e356 [2024-11-08 16:48:41,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:48:41,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:48:41,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:48:41,083 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:48:41,089 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:48:41,090 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:48:41" (1/1) ... [2024-11-08 16:48:41,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@344270a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:41, skipping insertion in model container [2024-11-08 16:48:41,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:48:41" (1/1) ... [2024-11-08 16:48:41,173 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:48:42,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:48:42,443 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:48:42,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:48:42,757 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:48:42,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42 WrapperNode [2024-11-08 16:48:42,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:48:42,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:48:42,759 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:48:42,759 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:48:42,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,811 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,837 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 70 [2024-11-08 16:48:42,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:48:42,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:48:42,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:48:42,838 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:48:42,851 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,851 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,854 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,869 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-11-08 16:48:42,870 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,878 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,880 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:48:42,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:48:42,889 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:48:42,889 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:48:42,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (1/1) ... [2024-11-08 16:48:42,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:48:42,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:42,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:48:42,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:48:42,959 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 16:48:42,959 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 16:48:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 16:48:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:48:42,960 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:48:42,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:48:43,128 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:48:43,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:48:43,341 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 16:48:43,342 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:48:43,362 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:48:43,362 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 16:48:43,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:48:43 BoogieIcfgContainer [2024-11-08 16:48:43,387 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:48:43,389 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:48:43,389 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:48:43,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:48:43,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:48:41" (1/3) ... [2024-11-08 16:48:43,397 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d82e952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:48:43, skipping insertion in model container [2024-11-08 16:48:43,398 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:48:42" (2/3) ... [2024-11-08 16:48:43,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d82e952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:48:43, skipping insertion in model container [2024-11-08 16:48:43,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:48:43" (3/3) ... [2024-11-08 16:48:43,401 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-11-08 16:48:43,420 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:48:43,420 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:48:43,512 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:48:43,519 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;@3787d656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:48:43,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:48:43,526 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:48:43,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 16:48:43,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:48:43,534 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:48:43,535 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 16:48:43,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:48:43,544 INFO L85 PathProgramCache]: Analyzing trace with hash -586897251, now seen corresponding path program 1 times [2024-11-08 16:48:43,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 16:48:43,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475653323] [2024-11-08 16:48:43,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:48:43,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:43,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:48:43,563 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:48:43,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:48:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:48:43,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 16:48:43,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 16:48:43,804 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 16:48:43,806 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 16:48:43,807 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 16:48:43,809 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 16:48:43,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:48:44,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:48:44,014 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-08 16:48:44,051 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 16:48:44,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 04:48:44 BoogieIcfgContainer [2024-11-08 16:48:44,055 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 16:48:44,057 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 16:48:44,057 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 16:48:44,057 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 16:48:44,058 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:48:43" (3/4) ... [2024-11-08 16:48:44,062 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 16:48:44,064 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 16:48:44,066 INFO L158 Benchmark]: Toolchain (without parser) took 2986.34ms. Allocated memory was 69.2MB in the beginning and 117.4MB in the end (delta: 48.2MB). Free memory was 41.5MB in the beginning and 67.1MB in the end (delta: -25.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 16:48:44,066 INFO L158 Benchmark]: CDTParser took 1.47ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:48:44,067 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1676.82ms. Allocated memory was 69.2MB in the beginning and 117.4MB in the end (delta: 48.2MB). Free memory was 41.4MB in the beginning and 73.2MB in the end (delta: -31.8MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. [2024-11-08 16:48:44,067 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.60ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 70.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:48:44,068 INFO L158 Benchmark]: Boogie Preprocessor took 49.81ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 67.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 16:48:44,069 INFO L158 Benchmark]: RCFGBuilder took 498.50ms. Allocated memory is still 117.4MB. Free memory was 67.4MB in the beginning and 87.3MB in the end (delta: -19.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2024-11-08 16:48:44,072 INFO L158 Benchmark]: TraceAbstraction took 665.91ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 67.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 16:48:44,073 INFO L158 Benchmark]: Witness Printer took 6.93ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 67.1MB in the end (delta: 675.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 16:48:44,078 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.47ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 44.7MB in the end (delta: 81.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1676.82ms. Allocated memory was 69.2MB in the beginning and 117.4MB in the end (delta: 48.2MB). Free memory was 41.4MB in the beginning and 73.2MB in the end (delta: -31.8MB). Peak memory consumption was 47.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.60ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 70.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.81ms. Allocated memory is still 117.4MB. Free memory was 70.4MB in the beginning and 67.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.50ms. Allocated memory is still 117.4MB. Free memory was 67.4MB in the beginning and 87.3MB in the end (delta: -19.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 665.91ms. Allocated memory is still 117.4MB. Free memory was 86.6MB in the beginning and 67.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 6.93ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 67.1MB in the end (delta: 675.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1588]: 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_multiply_53_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_multiply_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_53d_badSink(data) [L1586] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1588] data * 2 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: 1588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 16:48:44,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a61cf1c8-823b-4920-b150-eb2e012ef868/bin/uautomizer-verify-jihMAELWvX/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