./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --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 0aa9550d019c11f10948fcb1b55fe6cfd4d8dee2c3358905f9b702698c5c7c4c --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:55:29,199 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:55:29,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:55:29,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:55:29,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:55:29,225 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:55:29,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:55:29,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:55:29,230 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:55:29,231 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:55:29,232 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:55:29,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:55:29,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:55:29,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:55:29,235 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:55:29,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:55:29,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:55:29,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:55:29,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:55:29,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:55:29,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:55:29,262 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:55:29,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:55:29,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:55:29,268 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:55:29,268 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:55:29,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:55:29,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:55:29,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:55:29,271 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:55:29,271 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:55:29,272 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:55:29,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:55:29,273 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:55:29,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:55:29,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:55:29,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:55:29,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:55:29,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:55:29,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:55:29,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:55:29,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-18 19:55:29,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:55:29,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:55:29,331 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:55:29,331 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:55:29,333 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:55:29,333 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:55:29,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:55:29,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:55:29,334 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:55:29,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:55:29,335 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 19:55:29,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:55:29,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:55:29,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:55:29,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:55:29,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:55:29,336 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 19:55:29,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:55:29,337 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:55:29,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:55:29,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:55:29,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:55:29,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:55:29,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:55:29,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:55:29,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:55:29,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:55:29,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:55:29,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:55:29,339 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:55:29,339 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:55:29,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:55:29,339 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0aa9550d019c11f10948fcb1b55fe6cfd4d8dee2c3358905f9b702698c5c7c4c [2022-11-18 19:55:29,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:55:29,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:55:29,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:55:29,677 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:55:29,678 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:55:29,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i [2022-11-18 19:55:29,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/data/4dc30106f/6abf8a8a3d824efcbab1497b39cc0759/FLAGda1869677 [2022-11-18 19:55:30,538 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:55:30,539 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i [2022-11-18 19:55:30,563 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/data/4dc30106f/6abf8a8a3d824efcbab1497b39cc0759/FLAGda1869677 [2022-11-18 19:55:30,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/data/4dc30106f/6abf8a8a3d824efcbab1497b39cc0759 [2022-11-18 19:55:30,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:55:30,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:55:30,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:55:30,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:55:30,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:55:30,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:55:30" (1/1) ... [2022-11-18 19:55:30,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c283d3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:30, skipping insertion in model container [2022-11-18 19:55:30,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:55:30" (1/1) ... [2022-11-18 19:55:30,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:55:30,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:55:31,221 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 19:55:31,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:55:31,754 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:55:31,787 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-18 19:55:31,851 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:55:31,989 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:55:31,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31 WrapperNode [2022-11-18 19:55:31,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:55:31,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:55:31,992 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:55:31,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:55:32,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,044 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-11-18 19:55:32,045 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:55:32,046 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:55:32,046 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:55:32,046 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:55:32,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:55:32,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:55:32,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:55:32,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:55:32,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (1/1) ... [2022-11-18 19:55:32,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:55:32,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:55:32,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:55:32,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:55:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-18 19:55:32,177 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-18 19:55:32,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-18 19:55:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 19:55:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 19:55:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:55:32,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:55:32,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:55:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 19:55:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-18 19:55:32,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:55:32,432 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:55:32,434 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:55:32,615 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:55:32,620 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:55:32,620 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 19:55:32,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:55:32 BoogieIcfgContainer [2022-11-18 19:55:32,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:55:32,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:55:32,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:55:32,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:55:32,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:55:30" (1/3) ... [2022-11-18 19:55:32,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d15cd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:55:32, skipping insertion in model container [2022-11-18 19:55:32,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:55:31" (2/3) ... [2022-11-18 19:55:32,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d15cd71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:55:32, skipping insertion in model container [2022-11-18 19:55:32,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:55:32" (3/3) ... [2022-11-18 19:55:32,642 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_01_bad.i [2022-11-18 19:55:32,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:55:32,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 19:55:32,724 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:55:32,734 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=LoopsAndPotentialCycles, 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;@27282a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:55:32,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 19:55:32,739 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 19:55:32,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:55:32,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:55:32,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:32,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 19:55:32,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:32,757 INFO L85 PathProgramCache]: Analyzing trace with hash 588292234, now seen corresponding path program 1 times [2022-11-18 19:55:32,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:32,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512403648] [2022-11-18 19:55:32,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:32,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:33,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:55:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:55:33,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:55:33,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:55:33,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512403648] [2022-11-18 19:55:33,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512403648] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:55:33,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:55:33,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:55:33,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351813562] [2022-11-18 19:55:33,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:55:33,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:55:33,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:55:33,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:55:33,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:55:33,168 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-18 19:55:33,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:55:33,205 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-18 19:55:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:55:33,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-11-18 19:55:33,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:55:33,223 INFO L225 Difference]: With dead ends: 29 [2022-11-18 19:55:33,224 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 19:55:33,227 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 [2022-11-18 19:55:33,233 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:55:33,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 48 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:55:33,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 19:55:33,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 19:55:33,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-18 19:55:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-18 19:55:33,283 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-18 19:55:33,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:55:33,284 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-18 19:55:33,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-18 19:55:33,285 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-18 19:55:33,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 19:55:33,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:55:33,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:55:33,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:55:33,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-18 19:55:33,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:55:33,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1057190127, now seen corresponding path program 1 times [2022-11-18 19:55:33,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:55:33,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269652009] [2022-11-18 19:55:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:55:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:55:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:55:33,365 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:55:33,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:55:33,419 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:55:33,419 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:55:33,421 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-18 19:55:33,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-18 19:55:33,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:55:33,427 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 19:55:33,431 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:55:33,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:55:33 BoogieIcfgContainer [2022-11-18 19:55:33,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:55:33,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:55:33,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:55:33,459 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:55:33,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:55:32" (3/4) ... [2022-11-18 19:55:33,462 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:55:33,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:55:33,464 INFO L158 Benchmark]: Toolchain (without parser) took 2698.11ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 70.9MB in the beginning and 91.2MB in the end (delta: -20.3MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-11-18 19:55:33,464 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:55:33,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1223.57ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 70.7MB in the beginning and 99.7MB in the end (delta: -29.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-11-18 19:55:33,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.68ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 97.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:55:33,466 INFO L158 Benchmark]: Boogie Preprocessor took 27.32ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:55:33,467 INFO L158 Benchmark]: RCFGBuilder took 548.83ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 82.8MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:55:33,467 INFO L158 Benchmark]: TraceAbstraction took 833.32ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 92.2MB in the end (delta: -10.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:55:33,468 INFO L158 Benchmark]: Witness Printer took 4.73ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 91.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:55:33,471 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 91.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1223.57ms. Allocated memory was 115.3MB in the beginning and 142.6MB in the end (delta: 27.3MB). Free memory was 70.7MB in the beginning and 99.7MB in the end (delta: -29.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.68ms. Allocated memory is still 142.6MB. Free memory was 99.7MB in the beginning and 97.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.32ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 95.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.83ms. Allocated memory is still 142.6MB. Free memory was 95.1MB in the beginning and 82.8MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 833.32ms. Allocated memory is still 142.6MB. Free memory was 81.9MB in the beginning and 92.2MB in the end (delta: -10.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.73ms. Allocated memory is still 142.6MB. Free memory was 92.2MB in the beginning and 91.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1565]: 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: [L1525] int globalTrue = 1; [L1547] char** globalArgv = ((void *)0); [L1526] int globalFalse = 0; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1546] int globalArgc = 0; [L1522] const int GLOBAL_CONST_TRUE = 1; [L1527] int globalFive = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [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 [\old(argc)=1073741829, argc=1073741829, argv={1073741826:1073741830}, argv={1073741826:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE191_Integer_Underflow__int_fgets_multiply_01_bad() [L1550] int data; [L1551] data = 0 [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1554] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1556] data = atoi(inputBuffer) [L1553] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] data * 2 VAL [data=-1073741825, 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: 1565]: 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, 23 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, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 29 mSDtfsCounter, 6 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=23occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 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 [2022-11-18 19:55:33,495 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/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 No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b48a29bf-35a4-48a6-b7c7-50e0c435aadd/bin/uautomizer-TMbwUNV5ro/config using search string *Overflow*64bit*_Bitvector*.epf No suitable settings file found using Overflow*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample