./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/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_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/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_6e120a3e-c07e-4394-865f-74bac82f1e02/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 8876f9977695ca0ceb6bb9d505fa2bf741f2323f9d05daad5ac638cdc1835eef --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:33:58,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:33:58,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 18:33:58,531 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:33:58,532 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:33:58,571 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:33:58,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:33:58,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:33:58,575 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:33:58,577 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:33:58,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:33:58,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:33:58,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:33:58,579 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:33:58,582 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:33:58,582 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:33:58,583 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:33:58,583 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:33:58,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:33:58,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:33:58,589 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:33:58,589 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:33:58,590 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:33:58,590 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:33:58,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:33:58,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:33:58,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:33:58,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:33:58,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:33:58,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:33:58,594 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:33:58,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:33:58,595 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:33:58,596 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:33:58,596 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:33:58,596 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:33:58,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:33:58,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:33:58,598 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:33:58,598 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:33:58,598 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:33:58,599 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_6e120a3e-c07e-4394-865f-74bac82f1e02/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8876f9977695ca0ceb6bb9d505fa2bf741f2323f9d05daad5ac638cdc1835eef [2024-11-08 18:33:58,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:33:58,942 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:33:58,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:33:58,947 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:33:58,947 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:33:58,949 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i Unable to find full path for "g++" [2024-11-08 18:34:01,078 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:34:01,501 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:34:01,504 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2024-11-08 18:34:01,537 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/data/bc1e388de/994ac3528bdb4ecaa3aa8e0590ab3856/FLAGd7ea01e8a [2024-11-08 18:34:01,658 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/data/bc1e388de/994ac3528bdb4ecaa3aa8e0590ab3856 [2024-11-08 18:34:01,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:34:01,665 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:34:01,667 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:01,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:34:01,675 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:34:01,676 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:01" (1/1) ... [2024-11-08 18:34:01,678 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b045839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:01, skipping insertion in model container [2024-11-08 18:34:01,678 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:01" (1/1) ... [2024-11-08 18:34:01,780 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:34:03,056 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:03,070 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:34:03,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:03,420 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:34:03,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03 WrapperNode [2024-11-08 18:34:03,420 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:03,421 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:03,422 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:34:03,422 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:34:03,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,460 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,490 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-08 18:34:03,491 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:03,492 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:34:03,492 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:34:03,492 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:34:03,503 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,506 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,526 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 18:34:03,526 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,539 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,541 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:34:03,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:34:03,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:34:03,549 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:34:03,550 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (1/1) ... [2024-11-08 18:34:03,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:34:03,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:03,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:03,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:34:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:34:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:34:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:34:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:34:03,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:34:03,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:34:03,870 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:34:03,872 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:34:04,044 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 18:34:04,044 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:34:04,067 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:34:04,067 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:34:04,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:04 BoogieIcfgContainer [2024-11-08 18:34:04,068 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:34:04,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:34:04,074 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:34:04,078 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:34:04,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:34:01" (1/3) ... [2024-11-08 18:34:04,080 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718825f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:34:04, skipping insertion in model container [2024-11-08 18:34:04,081 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:03" (2/3) ... [2024-11-08 18:34:04,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@718825f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:34:04, skipping insertion in model container [2024-11-08 18:34:04,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:04" (3/3) ... [2024-11-08 18:34:04,086 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2024-11-08 18:34:04,108 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:34:04,108 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:34:04,185 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:34:04,198 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;@28a531c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:34:04,199 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:34:04,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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 18:34:04,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:34:04,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:04,216 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:04,217 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:34:04,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:04,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:34:04,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:04,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796689225] [2024-11-08 18:34:04,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:04,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:04,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 18:34:04,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:04,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:04,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:34:04,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796689225] [2024-11-08 18:34:04,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796689225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:04,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:04,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:34:04,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360680300] [2024-11-08 18:34:04,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:04,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:34:04,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:34:04,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:34:04,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:34:04,862 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:34:04,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:04,926 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-08 18:34:04,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:34:04,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-08 18:34:04,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:04,938 INFO L225 Difference]: With dead ends: 24 [2024-11-08 18:34:04,939 INFO L226 Difference]: Without dead ends: 15 [2024-11-08 18:34:04,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:34:04,946 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 3 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:04,951 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 59 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:34:04,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-08 18:34:04,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-08 18:34:04,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:34:04,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-11-08 18:34:04,997 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2024-11-08 18:34:04,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:05,000 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-11-08 18:34:05,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:34:05,000 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-08 18:34:05,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 18:34:05,002 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:05,002 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:05,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:34:05,005 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:34:05,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:05,006 INFO L85 PathProgramCache]: Analyzing trace with hash 924061903, now seen corresponding path program 1 times [2024-11-08 18:34:05,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:34:05,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328955011] [2024-11-08 18:34:05,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:05,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:34:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:05,083 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:05,149 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:34:05,149 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:34:05,151 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:34:05,157 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:34:05,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:34:05,163 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 18:34:05,192 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:34:05,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:34:05 BoogieIcfgContainer [2024-11-08 18:34:05,197 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:34:05,199 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:34:05,200 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:34:05,200 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:34:05,201 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:04" (3/4) ... [2024-11-08 18:34:05,204 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:34:05,205 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:34:05,207 INFO L158 Benchmark]: Toolchain (without parser) took 3541.13ms. Allocated memory is still 165.7MB. Free memory was 120.7MB in the beginning and 107.9MB in the end (delta: 12.7MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-11-08 18:34:05,208 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:05,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1753.41ms. Allocated memory is still 165.7MB. Free memory was 120.6MB in the beginning and 96.0MB in the end (delta: 24.6MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-11-08 18:34:05,211 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.78ms. Allocated memory is still 165.7MB. Free memory was 96.0MB in the beginning and 93.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:34:05,211 INFO L158 Benchmark]: Boogie Preprocessor took 54.40ms. Allocated memory is still 165.7MB. Free memory was 93.1MB in the beginning and 91.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 18:34:05,212 INFO L158 Benchmark]: RCFGBuilder took 520.29ms. Allocated memory is still 165.7MB. Free memory was 91.0MB in the beginning and 78.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:34:05,215 INFO L158 Benchmark]: TraceAbstraction took 1124.81ms. Allocated memory is still 165.7MB. Free memory was 77.3MB in the beginning and 107.9MB in the end (delta: -30.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:05,216 INFO L158 Benchmark]: Witness Printer took 6.25ms. Allocated memory is still 165.7MB. Free memory is still 107.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:05,218 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1753.41ms. Allocated memory is still 165.7MB. Free memory was 120.6MB in the beginning and 96.0MB in the end (delta: 24.6MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.78ms. Allocated memory is still 165.7MB. Free memory was 96.0MB in the beginning and 93.1MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.40ms. Allocated memory is still 165.7MB. Free memory was 93.1MB in the beginning and 91.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 520.29ms. Allocated memory is still 165.7MB. Free memory was 91.0MB in the beginning and 78.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1124.81ms. Allocated memory is still 165.7MB. Free memory was 77.3MB in the beginning and 107.9MB in the end (delta: -30.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.25ms. Allocated memory is still 165.7MB. Free memory is still 107.9MB. 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: 1577]: 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 CWE190_Integer_Overflow__int_fgets_preinc_51_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 CWE190_Integer_Overflow__int_fgets_preinc_51b_badSink(data) [L1577] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 18:34:05,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/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_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/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_6e120a3e-c07e-4394-865f-74bac82f1e02/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 8876f9977695ca0ceb6bb9d505fa2bf741f2323f9d05daad5ac638cdc1835eef --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:34:07,872 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:34:07,977 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 18:34:07,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:34:07,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:34:07,988 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 18:34:08,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:34:08,022 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:34:08,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:34:08,023 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:34:08,024 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:34:08,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:34:08,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:34:08,025 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:34:08,026 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:34:08,026 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:34:08,026 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:34:08,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:34:08,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:34:08,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:34:08,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:34:08,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:34:08,036 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 18:34:08,036 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 18:34:08,037 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:34:08,037 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 18:34:08,037 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 18:34:08,037 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:34:08,038 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:34:08,038 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:34:08,038 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:34:08,038 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:34:08,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:34:08,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:34:08,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:34:08,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:34:08,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:34:08,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:34:08,040 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 18:34:08,041 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 18:34:08,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:34:08,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:34:08,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:34:08,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:34:08,058 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_6e120a3e-c07e-4394-865f-74bac82f1e02/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8876f9977695ca0ceb6bb9d505fa2bf741f2323f9d05daad5ac638cdc1835eef [2024-11-08 18:34:08,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:34:08,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:34:08,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:34:08,447 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:34:08,448 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:34:08,449 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i Unable to find full path for "g++" [2024-11-08 18:34:10,580 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:34:10,983 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:34:10,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2024-11-08 18:34:11,019 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/data/aa6d413c1/076138c091554a8e9234e6cc4c0a9ff3/FLAG4aa336396 [2024-11-08 18:34:11,152 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/data/aa6d413c1/076138c091554a8e9234e6cc4c0a9ff3 [2024-11-08 18:34:11,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:34:11,157 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:34:11,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:11,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:34:11,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:34:11,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:11" (1/1) ... [2024-11-08 18:34:11,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@688d4d44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:11, skipping insertion in model container [2024-11-08 18:34:11,173 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:34:11" (1/1) ... [2024-11-08 18:34:11,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:34:12,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:12,394 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:34:12,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:34:12,803 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:34:12,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12 WrapperNode [2024-11-08 18:34:12,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:34:12,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:12,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:34:12,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:34:12,815 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,891 INFO L138 Inliner]: procedures = 504, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 68 [2024-11-08 18:34:12,891 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:34:12,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:34:12,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:34:12,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:34:12,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,914 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,947 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 18:34:12,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,963 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,969 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,974 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,977 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:12,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:34:12,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:34:12,988 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:34:12,988 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:34:12,989 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (1/1) ... [2024-11-08 18:34:13,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:34:13,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:13,028 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:34:13,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:34:13,058 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 18:34:13,058 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 18:34:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 18:34:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:34:13,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:34:13,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:34:13,282 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:34:13,285 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:34:13,478 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 18:34:13,478 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:34:13,493 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:34:13,493 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 18:34:13,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:13 BoogieIcfgContainer [2024-11-08 18:34:13,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:34:13,499 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:34:13,499 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:34:13,503 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:34:13,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:34:11" (1/3) ... [2024-11-08 18:34:13,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37635fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:34:13, skipping insertion in model container [2024-11-08 18:34:13,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:34:12" (2/3) ... [2024-11-08 18:34:13,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37635fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:34:13, skipping insertion in model container [2024-11-08 18:34:13,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:13" (3/3) ... [2024-11-08 18:34:13,509 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2024-11-08 18:34:13,531 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:34:13,531 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 18:34:13,628 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:34:13,637 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;@55dcd923, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:34:13,637 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 18:34:13,643 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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 18:34:13,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:34:13,652 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:13,653 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:13,653 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:34:13,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:13,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1415281768, now seen corresponding path program 1 times [2024-11-08 18:34:13,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:13,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059818856] [2024-11-08 18:34:13,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:13,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:13,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:13,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:34:13,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:34:13,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:34:13,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 18:34:13,896 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:34:13,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:34:13,946 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:34:13,947 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 18:34:13,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2059818856] [2024-11-08 18:34:13,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2059818856] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:34:13,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:34:13,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-08 18:34:13,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428776358] [2024-11-08 18:34:13,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:34:13,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 18:34:13,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 18:34:13,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 18:34:13,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:34:13,987 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:34:14,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:34:14,007 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-08 18:34:14,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 18:34:14,009 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-08 18:34:14,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:34:14,017 INFO L225 Difference]: With dead ends: 24 [2024-11-08 18:34:14,017 INFO L226 Difference]: Without dead ends: 15 [2024-11-08 18:34:14,021 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 18:34:14,026 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:34:14,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 18:34:14,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-08 18:34:14,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-08 18:34:14,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 18:34:14,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2024-11-08 18:34:14,099 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2024-11-08 18:34:14,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:34:14,101 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2024-11-08 18:34:14,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 18:34:14,101 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2024-11-08 18:34:14,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 18:34:14,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:34:14,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:34:14,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:34:14,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:14,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 18:34:14,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:34:14,309 INFO L85 PathProgramCache]: Analyzing trace with hash 924061903, now seen corresponding path program 1 times [2024-11-08 18:34:14,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 18:34:14,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949790765] [2024-11-08 18:34:14,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:34:14,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:14,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:34:14,313 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:34:14,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:34:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:14,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:34:14,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:34:14,537 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 18:34:14,538 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:34:14,540 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 18:34:14,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 18:34:14,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 18:34:14,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:34:14,746 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 18:34:14,772 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:34:14,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:34:14 BoogieIcfgContainer [2024-11-08 18:34:14,779 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:34:14,780 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:34:14,781 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:34:14,782 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:34:14,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:34:13" (3/4) ... [2024-11-08 18:34:14,786 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 18:34:14,787 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:34:14,788 INFO L158 Benchmark]: Toolchain (without parser) took 3631.02ms. Allocated memory was 65.0MB in the beginning and 119.5MB in the end (delta: 54.5MB). Free memory was 28.5MB in the beginning and 76.4MB in the end (delta: -47.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2024-11-08 18:34:14,789 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:14,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1644.20ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 28.4MB in the beginning and 41.2MB in the end (delta: -12.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2024-11-08 18:34:14,792 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.57ms. Allocated memory is still 96.5MB. Free memory was 41.2MB in the beginning and 38.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:34:14,793 INFO L158 Benchmark]: Boogie Preprocessor took 91.39ms. Allocated memory is still 96.5MB. Free memory was 38.1MB in the beginning and 66.2MB in the end (delta: -28.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2024-11-08 18:34:14,794 INFO L158 Benchmark]: RCFGBuilder took 506.97ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 51.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 18:34:14,795 INFO L158 Benchmark]: TraceAbstraction took 1280.94ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 50.5MB in the beginning and 76.4MB in the end (delta: -25.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:14,795 INFO L158 Benchmark]: Witness Printer took 7.11ms. Allocated memory is still 119.5MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:34:14,798 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 65.0MB. Free memory was 41.0MB in the beginning and 40.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1644.20ms. Allocated memory was 65.0MB in the beginning and 96.5MB in the end (delta: 31.5MB). Free memory was 28.4MB in the beginning and 41.2MB in the end (delta: -12.9MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.57ms. Allocated memory is still 96.5MB. Free memory was 41.2MB in the beginning and 38.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.39ms. Allocated memory is still 96.5MB. Free memory was 38.1MB in the beginning and 66.2MB in the end (delta: -28.1MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * RCFGBuilder took 506.97ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 51.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1280.94ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 50.5MB in the beginning and 76.4MB in the end (delta: -25.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.11ms. Allocated memory is still 119.5MB. Free memory is still 76.4MB. 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: 1577]: 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 CWE190_Integer_Overflow__int_fgets_preinc_51_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 CWE190_Integer_Overflow__int_fgets_preinc_51b_badSink(data) [L1577] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1577]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 18:34:14,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e120a3e-c07e-4394-865f-74bac82f1e02/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