./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx --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 ec1d6a1f69e41a5da2bca04baded77905b2f6d421778938f81dd592290f191d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:12:09,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:12:09,121 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 22:12:09,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:12:09,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:12:09,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:12:09,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:12:09,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:12:09,173 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:12:09,178 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:12:09,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:12:09,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:12:09,180 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:12:09,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:12:09,182 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:12:09,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:12:09,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:12:09,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:12:09,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:12:09,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:12:09,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:12:09,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:12:09,186 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:12:09,187 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:12:09,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:12:09,188 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:12:09,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:12:09,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:12:09,189 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:12:09,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:12:09,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:09,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:12:09,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:12:09,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:12:09,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:12:09,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:12:09,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:12:09,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:12:09,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:12:09,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:12:09,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:12:09,194 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_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1d6a1f69e41a5da2bca04baded77905b2f6d421778938f81dd592290f191d5 [2023-11-21 22:12:09,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:12:09,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:12:09,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:12:09,489 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:12:09,489 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:12:09,490 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-21 22:12:12,604 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:12:13,040 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:12:13,041 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-21 22:12:13,081 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/data/e8cc8b5f3/c298eb76e2614ddaab6b4764804b857c/FLAG59852fa20 [2023-11-21 22:12:13,098 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/data/e8cc8b5f3/c298eb76e2614ddaab6b4764804b857c [2023-11-21 22:12:13,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:12:13,102 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:12:13,103 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:13,103 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:12:13,116 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:12:13,117 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:13" (1/1) ... [2023-11-21 22:12:13,118 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54acee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:13, skipping insertion in model container [2023-11-21 22:12:13,118 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:13" (1/1) ... [2023-11-21 22:12:13,184 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:12:13,654 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:12:14,323 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:14,341 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:12:14,379 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:12:14,500 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:14,751 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:14,752 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:14,753 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:14,753 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:14,754 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:14,754 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:14,762 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:12:14,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14 WrapperNode [2023-11-21 22:12:14,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:14,766 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:14,767 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:12:14,767 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:12:14,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,826 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,870 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2023-11-21 22:12:14,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:14,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:12:14,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:12:14,872 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:12:14,884 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,897 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,919 INFO L187 HeapSplitter]: Split 3 memory accesses to 3 slices as follows [1, 1, 1] [2023-11-21 22:12:14,919 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,920 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,927 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,929 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,938 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:12:14,942 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:12:14,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:12:14,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:12:14,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (1/1) ... [2023-11-21 22:12:14,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:14,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:14,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:12:14,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:12:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 22:12:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 22:12:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 22:12:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:12:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-21 22:12:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-21 22:12:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-21 22:12:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:12:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:12:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:12:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:12:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 22:12:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:12:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:12:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:12:15,201 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:12:15,203 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:12:15,328 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:12:15,378 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:12:15,378 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:12:15,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:15 BoogieIcfgContainer [2023-11-21 22:12:15,380 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:12:15,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:12:15,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:12:15,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:12:15,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:12:13" (1/3) ... [2023-11-21 22:12:15,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a15e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:15, skipping insertion in model container [2023-11-21 22:12:15,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:14" (2/3) ... [2023-11-21 22:12:15,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a15e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:15, skipping insertion in model container [2023-11-21 22:12:15,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:15" (3/3) ... [2023-11-21 22:12:15,390 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-21 22:12:15,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:12:15,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 22:12:15,461 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:12:15,468 INFO L357 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, mHoare=true, 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;@6789733f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:12:15,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 22:12:15,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2023-11-21 22:12:15,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:12:15,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:15,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:15,481 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:12:15,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:15,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1878054798, now seen corresponding path program 1 times [2023-11-21 22:12:15,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:15,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677024585] [2023-11-21 22:12:15,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:15,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:15,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:12:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:15,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:15,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677024585] [2023-11-21 22:12:15,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677024585] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:15,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:15,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:15,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439517785] [2023-11-21 22:12:15,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:15,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:15,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:15,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:15,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:15,916 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-21 22:12:15,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:15,968 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-11-21 22:12:15,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:15,974 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 8 [2023-11-21 22:12:15,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:15,981 INFO L225 Difference]: With dead ends: 15 [2023-11-21 22:12:15,982 INFO L226 Difference]: Without dead ends: 11 [2023-11-21 22:12:15,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:15,989 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 3 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:15,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:12:16,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-21 22:12:16,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-21 22:12:16,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-11-21 22:12:16,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-21 22:12:16,035 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2023-11-21 22:12:16,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:16,037 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-21 22:12:16,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-21 22:12:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-21 22:12:16,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:12:16,039 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:16,039 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:16,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:12:16,040 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:12:16,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:16,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1909843460, now seen corresponding path program 1 times [2023-11-21 22:12:16,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:16,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417039769] [2023-11-21 22:12:16,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:16,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:12:16,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:12:16,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:12:16,117 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:12:16,118 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:12:16,119 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-21 22:12:16,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-21 22:12:16,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:12:16,126 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:12:16,129 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:12:16,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:12:16 BoogieIcfgContainer [2023-11-21 22:12:16,162 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:12:16,163 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:12:16,163 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:12:16,164 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:12:16,164 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:15" (3/4) ... [2023-11-21 22:12:16,167 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:12:16,168 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:12:16,169 INFO L158 Benchmark]: Toolchain (without parser) took 3066.95ms. Allocated memory was 167.8MB in the beginning and 224.4MB in the end (delta: 56.6MB). Free memory was 123.0MB in the beginning and 123.8MB in the end (delta: -745.8kB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2023-11-21 22:12:16,170 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 167.8MB. Free memory was 133.9MB in the beginning and 133.9MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:12:16,179 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1661.97ms. Allocated memory was 167.8MB in the beginning and 224.4MB in the end (delta: 56.6MB). Free memory was 122.5MB in the beginning and 179.4MB in the end (delta: -56.9MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. [2023-11-21 22:12:16,180 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.49ms. Allocated memory is still 224.4MB. Free memory was 179.4MB in the beginning and 176.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:12:16,181 INFO L158 Benchmark]: Boogie Preprocessor took 70.21ms. Allocated memory is still 224.4MB. Free memory was 176.1MB in the beginning and 174.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:16,182 INFO L158 Benchmark]: RCFGBuilder took 437.81ms. Allocated memory is still 224.4MB. Free memory was 174.1MB in the beginning and 158.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 22:12:16,183 INFO L158 Benchmark]: TraceAbstraction took 779.26ms. Allocated memory is still 224.4MB. Free memory was 158.4MB in the beginning and 123.8MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-21 22:12:16,186 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 224.4MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:12:16,191 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 167.8MB. Free memory was 133.9MB in the beginning and 133.9MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1661.97ms. Allocated memory was 167.8MB in the beginning and 224.4MB in the end (delta: 56.6MB). Free memory was 122.5MB in the beginning and 179.4MB in the end (delta: -56.9MB). Peak memory consumption was 68.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.49ms. Allocated memory is still 224.4MB. Free memory was 179.4MB in the beginning and 176.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.21ms. Allocated memory is still 224.4MB. Free memory was 176.1MB in the beginning and 174.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 437.81ms. Allocated memory is still 224.4MB. Free memory was 174.1MB in the beginning and 158.4MB in the end (delta: 15.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 779.26ms. Allocated memory is still 224.4MB. Free memory was 158.4MB in the beginning and 123.8MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 224.4MB. Free memory is still 123.8MB. 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1572] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1572] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483649, argc=2147483649, argv={2147483652:2147483650}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE190_Integer_Overflow__int_fgets_preinc_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1564]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 10 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 [2023-11-21 22:12:16,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx --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 ec1d6a1f69e41a5da2bca04baded77905b2f6d421778938f81dd592290f191d5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:12:18,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:12:19,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-21 22:12:19,050 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:12:19,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:12:19,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-21 22:12:19,077 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:12:19,078 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:12:19,078 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:12:19,079 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:12:19,080 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:12:19,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:12:19,081 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:12:19,082 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:12:19,083 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:12:19,084 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:12:19,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:12:19,085 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:12:19,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:12:19,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:12:19,087 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:12:19,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:12:19,089 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:12:19,089 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:12:19,090 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:12:19,090 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:12:19,091 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:12:19,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:12:19,092 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:12:19,092 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:12:19,094 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:12:19,094 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:12:19,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:12:19,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:19,095 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:12:19,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:12:19,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:12:19,097 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:12:19,097 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:12:19,098 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:12:19,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:12:19,098 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:12:19,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:12:19,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:12:19,099 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:12:19,100 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_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec1d6a1f69e41a5da2bca04baded77905b2f6d421778938f81dd592290f191d5 [2023-11-21 22:12:19,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:12:19,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:12:19,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:12:19,610 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:12:19,610 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:12:19,613 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-21 22:12:23,033 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:12:23,537 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:12:23,542 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-21 22:12:23,602 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/data/7d1065beb/ec87a97a776740a481935139385053db/FLAG5ce336306 [2023-11-21 22:12:23,621 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/data/7d1065beb/ec87a97a776740a481935139385053db [2023-11-21 22:12:23,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:12:23,629 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:12:23,633 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:23,633 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:12:23,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:12:23,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1753ff5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23, skipping insertion in model container [2023-11-21 22:12:23,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,730 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:12:24,248 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:12:25,059 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:25,074 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:12:25,094 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:12:25,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:25,366 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:25,366 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:25,367 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:25,367 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:25,367 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:25,367 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:25,376 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:12:25,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25 WrapperNode [2023-11-21 22:12:25,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:25,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:25,379 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:12:25,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:12:25,386 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,418 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,446 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2023-11-21 22:12:25,447 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:25,448 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:12:25,448 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:12:25,448 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:12:25,461 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,466 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,480 INFO L187 HeapSplitter]: Split 3 memory accesses to 3 slices as follows [1, 1, 1] [2023-11-21 22:12:25,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,481 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,491 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,493 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,505 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,511 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:12:25,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:12:25,533 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:12:25,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:12:25,534 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (1/1) ... [2023-11-21 22:12:25,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:25,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:25,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:12:25,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:12:25,601 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-21 22:12:25,602 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 22:12:25,602 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 22:12:25,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:12:25,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:12:25,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 22:12:25,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-21 22:12:25,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:12:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:12:25,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:12:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:12:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 22:12:25,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2023-11-21 22:12:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2023-11-21 22:12:25,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#2 [2023-11-21 22:12:25,813 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:12:25,816 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:12:26,048 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:12:26,096 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:12:26,097 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:12:26,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:26 BoogieIcfgContainer [2023-11-21 22:12:26,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:12:26,101 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:12:26,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:12:26,105 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:12:26,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:12:23" (1/3) ... [2023-11-21 22:12:26,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26840f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:26, skipping insertion in model container [2023-11-21 22:12:26,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:25" (2/3) ... [2023-11-21 22:12:26,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26840f6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:26, skipping insertion in model container [2023-11-21 22:12:26,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:26" (3/3) ... [2023-11-21 22:12:26,108 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_01_bad.i [2023-11-21 22:12:26,129 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:12:26,129 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 22:12:26,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:12:26,182 INFO L357 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, mHoare=true, 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;@16bcca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:12:26,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 22:12:26,187 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2023-11-21 22:12:26,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:12:26,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:26,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:26,196 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:12:26,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:26,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1878054798, now seen corresponding path program 1 times [2023-11-21 22:12:26,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:12:26,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [354807834] [2023-11-21 22:12:26,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:26,217 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:12:26,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:12:26,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:12:26,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 22:12:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:26,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 22:12:26,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:12:26,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:12:26,379 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:12:26,379 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:12:26,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [354807834] [2023-11-21 22:12:26,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [354807834] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:26,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:26,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:12:26,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292457110] [2023-11-21 22:12:26,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:26,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:12:26,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:12:26,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:12:26,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:12:26,433 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-21 22:12:26,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:12:26,483 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2023-11-21 22:12:26,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:12:26,485 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 8 [2023-11-21 22:12:26,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:12:26,493 INFO L225 Difference]: With dead ends: 15 [2023-11-21 22:12:26,493 INFO L226 Difference]: Without dead ends: 11 [2023-11-21 22:12:26,496 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:12:26,500 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 22:12:26,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 22:12:26,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-21 22:12:26,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-21 22:12:26,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 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) [2023-11-21 22:12:26,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2023-11-21 22:12:26,538 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2023-11-21 22:12:26,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:12:26,540 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2023-11-21 22:12:26,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2023-11-21 22:12:26,541 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2023-11-21 22:12:26,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:12:26,542 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:12:26,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:26,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-21 22:12:26,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:12:26,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 22:12:26,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:26,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1909843460, now seen corresponding path program 1 times [2023-11-21 22:12:26,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:12:26,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1542111214] [2023-11-21 22:12:26,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:26,749 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:12:26,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:12:26,751 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:12:26,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-21 22:12:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:12:26,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:12:26,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:12:26,989 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 22:12:26,993 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:12:26,997 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-21 22:12:27,000 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-21 22:12:27,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:12:27,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:12:27,207 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:12:27,211 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:12:27,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:12:27 BoogieIcfgContainer [2023-11-21 22:12:27,238 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:12:27,239 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:12:27,239 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:12:27,240 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:12:27,240 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:26" (3/4) ... [2023-11-21 22:12:27,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:12:27,243 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:12:27,244 INFO L158 Benchmark]: Toolchain (without parser) took 3614.97ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 60.3MB in the beginning and 51.0MB in the end (delta: 9.3MB). Peak memory consumption was 37.8MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,245 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 88.1MB. Free memory was 63.6MB in the beginning and 63.4MB in the end (delta: 143.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,245 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1744.87ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 60.3MB in the beginning and 71.0MB in the end (delta: -10.7MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,246 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.93ms. Allocated memory is still 115.3MB. Free memory was 71.0MB in the beginning and 68.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,247 INFO L158 Benchmark]: Boogie Preprocessor took 69.59ms. Allocated memory is still 115.3MB. Free memory was 68.3MB in the beginning and 65.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,247 INFO L158 Benchmark]: RCFGBuilder took 566.53ms. Allocated memory is still 115.3MB. Free memory was 65.2MB in the beginning and 82.5MB in the end (delta: -17.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,248 INFO L158 Benchmark]: TraceAbstraction took 1137.33ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 51.0MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,249 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 115.3MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:12:27,252 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 88.1MB. Free memory was 63.6MB in the beginning and 63.4MB in the end (delta: 143.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1744.87ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 60.3MB in the beginning and 71.0MB in the end (delta: -10.7MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.93ms. Allocated memory is still 115.3MB. Free memory was 71.0MB in the beginning and 68.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.59ms. Allocated memory is still 115.3MB. Free memory was 68.3MB in the beginning and 65.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 566.53ms. Allocated memory is still 115.3MB. Free memory was 65.2MB in the beginning and 82.5MB in the end (delta: -17.2MB). Peak memory consumption was 15.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1137.33ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 51.0MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 115.3MB. Free memory is still 51.0MB. 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: 1564]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1556. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1572] CALL 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, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1572] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE190_Integer_Overflow__int_fgets_preinc_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE, EXPR fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] EXPR data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552-L1562] { char inputBuffer[(3 * sizeof(data) + 2)] = ""; if (fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0)) { data = atoi(inputBuffer); } else { printLine("fgets() failed."); } } VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1564]: 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, 15 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, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 61 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 [2023-11-21 22:12:27,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f9755b02-ef5f-481b-bf0d-528f76b7e213/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample