./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:37:33,670 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:37:33,723 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 11:37:33,728 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:37:33,728 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:37:33,748 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:37:33,748 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:37:33,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:37:33,749 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:37:33,749 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:37:33,749 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:37:33,749 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:37:33,749 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:37:33,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:37:33,749 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:37:33,750 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:37:33,750 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:37:33,751 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:37:33,751 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:37:33,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:37:33,752 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:37:33,752 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:37:33,752 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:37:33,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:37:33,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:37:33,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:37:33,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:37:33,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:37:33,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:37:33,753 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:37:33,753 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 [2024-12-02 11:37:33,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:37:33,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:37:33,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:37:33,962 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:37:33,962 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:37:33,963 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-12-02 11:37:36,572 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data/261e0d4aa/5072e34a7c6945b190a5482cfc033a62/FLAGac4f4e289 [2024-12-02 11:37:36,909 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:37:36,909 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-12-02 11:37:36,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data/261e0d4aa/5072e34a7c6945b190a5482cfc033a62/FLAGac4f4e289 [2024-12-02 11:37:37,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data/261e0d4aa/5072e34a7c6945b190a5482cfc033a62 [2024-12-02 11:37:37,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:37:37,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:37:37,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:37:37,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:37:37,166 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:37:37,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:37:37" (1/1) ... [2024-12-02 11:37:37,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf3b77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:37, skipping insertion in model container [2024-12-02 11:37:37,167 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:37:37" (1/1) ... [2024-12-02 11:37:37,197 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:37:37,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:37:37,839 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:37:37,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:37:38,016 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:37:38,016 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38 WrapperNode [2024-12-02 11:37:38,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:37:38,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:37:38,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:37:38,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:37:38,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,051 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,068 INFO L138 Inliner]: procedures = 501, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 65 [2024-12-02 11:37:38,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:37:38,069 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:37:38,069 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:37:38,069 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:37:38,076 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,076 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,078 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,090 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-12-02 11:37:38,090 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,090 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,095 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,096 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,097 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:37:38,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:37:38,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:37:38,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:37:38,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (1/1) ... [2024-12-02 11:37:38,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:37:38,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:37:38,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:37:38,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:37:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 11:37:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 11:37:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:37:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:37:38,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:37:38,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:37:38,258 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:37:38,259 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:37:38,358 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-12-02 11:37:38,358 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:37:38,367 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:37:38,367 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:37:38,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:38 BoogieIcfgContainer [2024-12-02 11:37:38,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:37:38,369 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:37:38,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:37:38,374 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:37:38,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:37:37" (1/3) ... [2024-12-02 11:37:38,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2084ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:37:38, skipping insertion in model container [2024-12-02 11:37:38,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:38" (2/3) ... [2024-12-02 11:37:38,375 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2084ca5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:37:38, skipping insertion in model container [2024-12-02 11:37:38,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:38" (3/3) ... [2024-12-02 11:37:38,376 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-12-02 11:37:38,390 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:37:38,391 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i that has 2 procedures, 26 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 11:37:38,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:37:38,449 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74719f8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:37:38,449 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:37:38,452 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.263157894736842) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 11:37:38,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 11:37:38,458 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:38,459 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:38,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 11:37:38,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:38,464 INFO L85 PathProgramCache]: Analyzing trace with hash -419013890, now seen corresponding path program 1 times [2024-12-02 11:37:38,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:37:38,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354943040] [2024-12-02 11:37:38,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:38,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:37:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:37:38,582 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:37:38,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:37:38,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 11:37:38,619 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:37:38,620 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 11:37:38,621 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 11:37:38,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:37:38,625 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 11:37:38,643 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:37:38,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:37:38 BoogieIcfgContainer [2024-12-02 11:37:38,645 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:37:38,646 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:37:38,646 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:37:38,646 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:37:38,646 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:38" (3/4) ... [2024-12-02 11:37:38,649 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:37:38,649 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:37:38,650 INFO L158 Benchmark]: Toolchain (without parser) took 1488.11ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 80.1MB in the end (delta: 33.7MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2024-12-02 11:37:38,650 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:37:38,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 854.44ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 54.4MB in the end (delta: 59.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-02 11:37:38,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.04ms. Allocated memory is still 142.6MB. Free memory was 54.4MB in the beginning and 112.7MB in the end (delta: -58.4MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2024-12-02 11:37:38,651 INFO L158 Benchmark]: Boogie Preprocessor took 30.08ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 110.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:37:38,652 INFO L158 Benchmark]: RCFGBuilder took 267.63ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 98.0MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:37:38,652 INFO L158 Benchmark]: TraceAbstraction took 275.68ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 80.1MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 11:37:38,652 INFO L158 Benchmark]: Witness Printer took 3.48ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:37:38,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 854.44ms. Allocated memory is still 142.6MB. Free memory was 113.7MB in the beginning and 54.4MB in the end (delta: 59.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.04ms. Allocated memory is still 142.6MB. Free memory was 54.4MB in the beginning and 112.7MB in the end (delta: -58.4MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.08ms. Allocated memory is still 142.6MB. Free memory was 112.7MB in the beginning and 110.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 267.63ms. Allocated memory is still 142.6MB. Free memory was 110.9MB in the beginning and 98.0MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 275.68ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 80.1MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.48ms. Allocated memory is still 142.6MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_53d_badSink(data) [L1586] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-1073741825, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1588] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 11:37:38,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:37:40,565 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:37:40,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-12-02 11:37:40,647 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:37:40,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:37:40,647 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-12-02 11:37:40,669 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:37:40,670 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:37:40,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:37:40,670 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:37:40,670 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:37:40,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:37:40,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:37:40,671 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:37:40,671 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:37:40,671 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:37:40,671 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:37:40,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:37:40,672 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:37:40,673 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:37:40,673 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:37:40,673 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:37:40,673 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:37:40,674 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3185ffe29f05ed4171c2ed6caade03d779fa7a7384e53383ff00b407ece1e3b7 [2024-12-02 11:37:40,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:37:40,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:37:40,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:37:40,920 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:37:40,921 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:37:40,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-12-02 11:37:43,621 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data/19daf8063/45bba5a958284e31b19a03c392812cec/FLAGb9c16a0e6 [2024-12-02 11:37:43,884 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:37:43,884 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-12-02 11:37:43,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data/19daf8063/45bba5a958284e31b19a03c392812cec/FLAGb9c16a0e6 [2024-12-02 11:37:43,916 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/data/19daf8063/45bba5a958284e31b19a03c392812cec [2024-12-02 11:37:43,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:37:43,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:37:43,920 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:37:43,920 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:37:43,923 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:37:43,924 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:37:43" (1/1) ... [2024-12-02 11:37:43,925 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a832379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:43, skipping insertion in model container [2024-12-02 11:37:43,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:37:43" (1/1) ... [2024-12-02 11:37:43,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:37:44,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:37:44,576 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:37:44,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:37:44,751 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:37:44,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44 WrapperNode [2024-12-02 11:37:44,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:37:44,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:37:44,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:37:44,753 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:37:44,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,793 INFO L138 Inliner]: procedures = 506, calls = 30, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 64 [2024-12-02 11:37:44,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:37:44,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:37:44,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:37:44,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:37:44,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,803 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,815 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-12-02 11:37:44,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,823 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,825 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,827 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,828 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:37:44,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:37:44,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:37:44,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:37:44,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (1/1) ... [2024-12-02 11:37:44,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:37:44,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:37:44,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:37:44,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:37:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 11:37:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 11:37:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 11:37:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:37:44,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:37:44,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:37:44,988 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:37:44,989 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:37:45,104 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-12-02 11:37:45,104 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:37:45,111 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:37:45,111 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:37:45,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:45 BoogieIcfgContainer [2024-12-02 11:37:45,111 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:37:45,114 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:37:45,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:37:45,118 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:37:45,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:37:43" (1/3) ... [2024-12-02 11:37:45,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303ed163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:37:45, skipping insertion in model container [2024-12-02 11:37:45,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:44" (2/3) ... [2024-12-02 11:37:45,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303ed163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:37:45, skipping insertion in model container [2024-12-02 11:37:45,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:45" (3/3) ... [2024-12-02 11:37:45,120 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i [2024-12-02 11:37:45,134 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:37:45,135 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_multiply_53_bad.i that has 2 procedures, 26 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2024-12-02 11:37:45,170 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:37:45,179 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@466594cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:37:45,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-12-02 11:37:45,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.263157894736842) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 11:37:45,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-02 11:37:45,186 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:37:45,186 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:37:45,187 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-12-02 11:37:45,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:37:45,190 INFO L85 PathProgramCache]: Analyzing trace with hash -419013890, now seen corresponding path program 1 times [2024-12-02 11:37:45,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 11:37:45,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [60178523] [2024-12-02 11:37:45,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:37:45,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:37:45,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:37:45,201 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:37:45,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:37:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:37:45,319 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 11:37:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 11:37:45,360 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-12-02 11:37:45,362 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 11:37:45,363 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-12-02 11:37:45,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-12-02 11:37:45,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:37:45,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:37:45,568 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2024-12-02 11:37:45,586 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:37:45,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:37:45 BoogieIcfgContainer [2024-12-02 11:37:45,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:37:45,589 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:37:45,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:37:45,590 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:37:45,590 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:37:45" (3/4) ... [2024-12-02 11:37:45,592 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 11:37:45,593 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:37:45,594 INFO L158 Benchmark]: Toolchain (without parser) took 1674.78ms. Allocated memory is still 92.3MB. Free memory was 65.8MB in the beginning and 54.2MB in the end (delta: 11.7MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2024-12-02 11:37:45,594 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:37:45,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 831.80ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 59.8MB in the end (delta: 5.8MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. [2024-12-02 11:37:45,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.96ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 57.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:37:45,595 INFO L158 Benchmark]: Boogie Preprocessor took 36.67ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 54.4MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:37:45,595 INFO L158 Benchmark]: RCFGBuilder took 280.11ms. Allocated memory is still 92.3MB. Free memory was 54.4MB in the beginning and 41.1MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 11:37:45,596 INFO L158 Benchmark]: TraceAbstraction took 475.32ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 54.2MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:37:45,596 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 92.3MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:37:45,598 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 831.80ms. Allocated memory is still 92.3MB. Free memory was 65.7MB in the beginning and 59.8MB in the end (delta: 5.8MB). Peak memory consumption was 47.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.96ms. Allocated memory is still 92.3MB. Free memory was 59.8MB in the beginning and 57.0MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.67ms. Allocated memory is still 92.3MB. Free memory was 57.0MB in the beginning and 54.4MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 280.11ms. Allocated memory is still 92.3MB. Free memory was 54.4MB in the beginning and 41.1MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 475.32ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 54.2MB in the end (delta: -13.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 92.3MB. Free memory was 54.2MB in the beginning and 54.2MB in the end (delta: 18.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557, overapproximation of fgets at line 1555. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={3:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_multiply_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_53d_badSink(data) [L1586] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1588] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1588]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-02 11:37:45,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ac68169-f1b8-4102-85b8-26c9eb51ee37/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample