./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS --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 dc4661913c807bd7d7810a4cdc9341a20d7a8e08955eacb607bcee14d7ed33af --- 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-4e7fbc6 [2022-11-23 02:19:26,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:19:26,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:19:26,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:19:26,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:19:26,396 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:19:26,398 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:19:26,402 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:19:26,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:19:26,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:19:26,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:19:26,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:19:26,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:19:26,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:19:26,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:19:26,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:19:26,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:19:26,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:19:26,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:19:26,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:19:26,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:19:26,439 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:19:26,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:19:26,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:19:26,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:19:26,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:19:26,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:19:26,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:19:26,456 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:19:26,457 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:19:26,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:19:26,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:19:26,461 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:19:26,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:19:26,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:19:26,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:19:26,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:19:26,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:19:26,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:19:26,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:19:26,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:19:26,469 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 02:19:26,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:19:26,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:19:26,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:19:26,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:19:26,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:19:26,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:19:26,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:19:26,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:19:26,518 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:19:26,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:19:26,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:19:26,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:19:26,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:19:26,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:19:26,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:19:26,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:19:26,521 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:19:26,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:19:26,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:19:26,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:19:26,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:19:26,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:19:26,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:19:26,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:19:26,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:19:26,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:19:26,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:19:26,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:19:26,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:19:26,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:19:26,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:19:26,526 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:19:26,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:19:26,526 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc4661913c807bd7d7810a4cdc9341a20d7a8e08955eacb607bcee14d7ed33af [2022-11-23 02:19:26,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:19:26,865 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:19:26,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:19:26,869 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:19:26,869 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:19:26,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i [2022-11-23 02:19:29,912 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:19:30,274 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:19:30,276 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i [2022-11-23 02:19:30,303 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/data/1e6c88af8/bf87e883316249088898eb72d3ae2061/FLAG29527672b [2022-11-23 02:19:30,322 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/data/1e6c88af8/bf87e883316249088898eb72d3ae2061 [2022-11-23 02:19:30,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:19:30,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:19:30,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:19:30,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:19:30,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:19:30,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:30" (1/1) ... [2022-11-23 02:19:30,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f766c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:30, skipping insertion in model container [2022-11-23 02:19:30,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:30" (1/1) ... [2022-11-23 02:19:30,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:19:30,413 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:19:30,823 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:19:31,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:19:31,354 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:19:31,397 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:19:31,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:19:31,653 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:19:31,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31 WrapperNode [2022-11-23 02:19:31,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:19:31,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:19:31,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:19:31,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:19:31,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,723 INFO L138 Inliner]: procedures = 500, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-11-23 02:19:31,723 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:19:31,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:19:31,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:19:31,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:19:31,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,756 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:19:31,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:19:31,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:19:31,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:19:31,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (1/1) ... [2022-11-23 02:19:31,770 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:19:31,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:31,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:19:31,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:19:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 02:19:31,832 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 02:19:31,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 02:19:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:19:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 02:19:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:19:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:19:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:19:31,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:19:31,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:19:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 02:19:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:19:31,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:19:31,981 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:19:31,983 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:19:32,161 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:19:32,180 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:19:32,180 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:19:32,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:32 BoogieIcfgContainer [2022-11-23 02:19:32,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:19:32,184 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:19:32,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:19:32,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:19:32,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:30" (1/3) ... [2022-11-23 02:19:32,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbb5f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:32, skipping insertion in model container [2022-11-23 02:19:32,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:31" (2/3) ... [2022-11-23 02:19:32,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbb5f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:32, skipping insertion in model container [2022-11-23 02:19:32,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:32" (3/3) ... [2022-11-23 02:19:32,190 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i [2022-11-23 02:19:32,213 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:19:32,213 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 02:19:32,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:19:32,262 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;@23ec6afc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:19:32,263 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 02:19:32,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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) [2022-11-23 02:19:32,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 02:19:32,274 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:32,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:32,275 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:19:32,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:32,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-11-23 02:19:32,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:32,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281500961] [2022-11-23 02:19:32,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:32,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:32,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:32,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-23 02:19:32,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:32,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:19:32,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:19:32,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281500961] [2022-11-23 02:19:32,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281500961] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:19:32,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:19:32,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:19:32,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977476732] [2022-11-23 02:19:32,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:19:32,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 02:19:32,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:19:32,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 02:19:32,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 02:19:32,954 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:19:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:19:33,002 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-11-23 02:19:33,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 02:19:33,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-23 02:19:33,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:19:33,011 INFO L225 Difference]: With dead ends: 22 [2022-11-23 02:19:33,011 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 02:19:33,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:19:33,017 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:19:33,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 43 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:19:33,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 02:19:33,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-23 02:19:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-23 02:19:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-23 02:19:33,053 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-23 02:19:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:19:33,055 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-23 02:19:33,055 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:19:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-23 02:19:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 02:19:33,057 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:33,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:33,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:19:33,058 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:19:33,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:33,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2022-11-23 02:19:33,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:19:33,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658216669] [2022-11-23 02:19:33,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:33,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:19:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:19:33,092 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:19:33,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:19:33,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:19:33,137 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:19:33,139 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 02:19:33,141 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 02:19:33,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:19:33,146 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 02:19:33,150 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:19:33,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:19:33 BoogieIcfgContainer [2022-11-23 02:19:33,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:19:33,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:19:33,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:19:33,199 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:19:33,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:32" (3/4) ... [2022-11-23 02:19:33,202 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:19:33,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:19:33,203 INFO L158 Benchmark]: Toolchain (without parser) took 2877.26ms. Allocated memory is still 174.1MB. Free memory was 126.4MB in the beginning and 123.3MB in the end (delta: 3.1MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-23 02:19:33,204 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:19:33,206 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1325.30ms. Allocated memory is still 174.1MB. Free memory was 126.2MB in the beginning and 110.7MB in the end (delta: 15.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. [2022-11-23 02:19:33,206 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.76ms. Allocated memory is still 174.1MB. Free memory was 110.7MB in the beginning and 107.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:19:33,207 INFO L158 Benchmark]: Boogie Preprocessor took 36.64ms. Allocated memory is still 174.1MB. Free memory was 107.5MB in the beginning and 106.6MB in the end (delta: 921.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:19:33,207 INFO L158 Benchmark]: RCFGBuilder took 420.91ms. Allocated memory is still 174.1MB. Free memory was 106.6MB in the beginning and 92.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 02:19:33,208 INFO L158 Benchmark]: TraceAbstraction took 1014.12ms. Allocated memory is still 174.1MB. Free memory was 92.6MB in the beginning and 123.3MB in the end (delta: -30.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:19:33,208 INFO L158 Benchmark]: Witness Printer took 4.27ms. Allocated memory is still 174.1MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:19:33,210 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 132.1MB. Free memory is still 76.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1325.30ms. Allocated memory is still 174.1MB. Free memory was 126.2MB in the beginning and 110.7MB in the end (delta: 15.4MB). Peak memory consumption was 43.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.76ms. Allocated memory is still 174.1MB. Free memory was 110.7MB in the beginning and 107.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.64ms. Allocated memory is still 174.1MB. Free memory was 107.5MB in the beginning and 106.6MB in the end (delta: 921.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 420.91ms. Allocated memory is still 174.1MB. Free memory was 106.6MB in the beginning and 92.6MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1014.12ms. Allocated memory is still 174.1MB. Free memory was 92.6MB in the beginning and 123.3MB in the end (delta: -30.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.27ms. Allocated memory is still 174.1MB. Free memory is still 123.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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] [L1582] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1582] RET printLine("Calling bad()...") VAL [#in~argv={2147483648:2147483653}, argc=2147483652, argv={2147483648:2147483653}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=2147483652] [L1583] CALL CWE190_Integer_Overflow__int_fgets_preinc_34_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_preinc_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1573] ++data VAL [data=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={7:0}] - UnprovableResult [Line: 1573]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 20 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 02:19:33,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS --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 dc4661913c807bd7d7810a4cdc9341a20d7a8e08955eacb607bcee14d7ed33af --- 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-4e7fbc6 [2022-11-23 02:19:35,770 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:19:35,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:19:35,810 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:19:35,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:19:35,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:19:35,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:19:35,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:19:35,824 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:19:35,830 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:19:35,831 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:19:35,834 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:19:35,834 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:19:35,837 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:19:35,838 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:19:35,845 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:19:35,847 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:19:35,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:19:35,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:19:35,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:19:35,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:19:35,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:19:35,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:19:35,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:19:35,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:19:35,874 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:19:35,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:19:35,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:19:35,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:19:35,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:19:35,878 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:19:35,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:19:35,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:19:35,882 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:19:35,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:19:35,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:19:35,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:19:35,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:19:35,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:19:35,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:19:35,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:19:35,904 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-23 02:19:35,932 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:19:35,932 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:19:35,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:19:35,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:19:35,933 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:19:35,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:19:35,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:19:35,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:19:35,935 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:19:35,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:19:35,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:19:35,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:19:35,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:19:35,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:19:35,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:19:35,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 02:19:35,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 02:19:35,937 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:19:35,937 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 02:19:35,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:19:35,938 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:19:35,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:19:35,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:19:35,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:19:35,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:19:35,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:19:35,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:19:35,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:19:35,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:19:35,940 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 02:19:35,940 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 02:19:35,941 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:19:35,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:19:35,941 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:19:35,941 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:19:35,942 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 02:19:35,942 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc4661913c807bd7d7810a4cdc9341a20d7a8e08955eacb607bcee14d7ed33af [2022-11-23 02:19:36,314 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:19:36,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:19:36,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:19:36,348 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:19:36,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:19:36,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i [2022-11-23 02:19:39,533 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:19:39,964 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:19:39,967 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i [2022-11-23 02:19:39,998 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/data/237f18659/3acb9248dc6d45e383872ea36718376b/FLAGa016b0c80 [2022-11-23 02:19:40,021 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/data/237f18659/3acb9248dc6d45e383872ea36718376b [2022-11-23 02:19:40,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:19:40,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:19:40,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:19:40,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:19:40,031 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:19:40,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:40" (1/1) ... [2022-11-23 02:19:40,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42169040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:40, skipping insertion in model container [2022-11-23 02:19:40,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:19:40" (1/1) ... [2022-11-23 02:19:40,041 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:19:40,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:19:40,480 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:19:41,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:19:41,103 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:19:41,123 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:19:41,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:19:41,311 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:19:41,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41 WrapperNode [2022-11-23 02:19:41,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:19:41,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:19:41,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:19:41,320 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:19:41,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,378 INFO L138 Inliner]: procedures = 505, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2022-11-23 02:19:41,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:19:41,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:19:41,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:19:41,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:19:41,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,407 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,412 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:19:41,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:19:41,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:19:41,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:19:41,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (1/1) ... [2022-11-23 02:19:41,420 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:19:41,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:19:41,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:19:41,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:19:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 02:19:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 02:19:41,490 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 02:19:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:19:41,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 02:19:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:19:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:19:41,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:19:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 02:19:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:19:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 02:19:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 02:19:41,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 02:19:41,652 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:19:41,654 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:19:41,914 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:19:41,920 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:19:41,920 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:19:41,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:41 BoogieIcfgContainer [2022-11-23 02:19:41,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:19:41,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:19:41,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:19:41,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:19:41,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:19:40" (1/3) ... [2022-11-23 02:19:41,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650b53fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:41, skipping insertion in model container [2022-11-23 02:19:41,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:19:41" (2/3) ... [2022-11-23 02:19:41,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650b53fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:19:41, skipping insertion in model container [2022-11-23 02:19:41,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:41" (3/3) ... [2022-11-23 02:19:41,939 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_34_bad.i [2022-11-23 02:19:41,957 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:19:41,957 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 02:19:42,045 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:19:42,052 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;@5334e535, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:19:42,052 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 02:19:42,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 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) [2022-11-23 02:19:42,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 02:19:42,066 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:42,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:42,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:19:42,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:42,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-11-23 02:19:42,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:19:42,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417895101] [2022-11-23 02:19:42,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:42,092 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:19:42,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:19:42,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:19:42,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 02:19:42,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:19:42,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 02:19:42,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 02:19:42,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:19:42,346 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 02:19:42,347 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-23 02:19:42,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417895101] [2022-11-23 02:19:42,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417895101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:19:42,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:19:42,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 02:19:42,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730134467] [2022-11-23 02:19:42,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:19:42,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 02:19:42,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-23 02:19:42,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 02:19:42,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:19:42,412 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:19:42,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:19:42,429 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2022-11-23 02:19:42,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 02:19:42,431 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-23 02:19:42,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:19:42,439 INFO L225 Difference]: With dead ends: 22 [2022-11-23 02:19:42,439 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 02:19:42,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 02:19:42,448 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:19:42,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:19:42,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 02:19:42,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-23 02:19:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-11-23 02:19:42,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-23 02:19:42,486 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-23 02:19:42,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:19:42,488 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-23 02:19:42,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 02:19:42,488 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-23 02:19:42,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 02:19:42,490 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:19:42,490 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:19:42,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:19:42,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:19:42,709 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:19:42,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:19:42,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1427713972, now seen corresponding path program 1 times [2022-11-23 02:19:42,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:19:42,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675465651] [2022-11-23 02:19:42,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:19:42,711 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:19:42,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:19:42,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:19:42,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 02:19:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:19:42,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:19:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:19:42,981 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 02:19:42,982 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:19:42,986 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 02:19:42,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 02:19:43,011 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 02:19:43,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:19:43,194 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 02:19:43,198 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:19:43,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:19:43 BoogieIcfgContainer [2022-11-23 02:19:43,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:19:43,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:19:43,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:19:43,253 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:19:43,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:19:41" (3/4) ... [2022-11-23 02:19:43,259 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:19:43,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:19:43,262 INFO L158 Benchmark]: Toolchain (without parser) took 3235.15ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 56.6MB in the beginning and 70.0MB in the end (delta: -13.3MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-11-23 02:19:43,263 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:19:43,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1284.69ms. Allocated memory is still 81.8MB. Free memory was 56.4MB in the beginning and 34.0MB in the end (delta: 22.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2022-11-23 02:19:43,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.53ms. Allocated memory is still 81.8MB. Free memory was 34.0MB in the beginning and 53.0MB in the end (delta: -19.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-23 02:19:43,265 INFO L158 Benchmark]: Boogie Preprocessor took 33.14ms. Allocated memory is still 81.8MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:19:43,265 INFO L158 Benchmark]: RCFGBuilder took 509.20ms. Allocated memory is still 81.8MB. Free memory was 50.9MB in the beginning and 36.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 02:19:43,267 INFO L158 Benchmark]: TraceAbstraction took 1324.57ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 35.9MB in the beginning and 70.6MB in the end (delta: -34.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2022-11-23 02:19:43,268 INFO L158 Benchmark]: Witness Printer took 10.41ms. Allocated memory is still 98.6MB. Free memory was 70.6MB in the beginning and 70.0MB in the end (delta: 571.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:19:43,270 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 62.9MB. Free memory was 41.3MB in the beginning and 41.3MB in the end (delta: 44.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1284.69ms. Allocated memory is still 81.8MB. Free memory was 56.4MB in the beginning and 34.0MB in the end (delta: 22.4MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.53ms. Allocated memory is still 81.8MB. Free memory was 34.0MB in the beginning and 53.0MB in the end (delta: -19.0MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.14ms. Allocated memory is still 81.8MB. Free memory was 53.0MB in the beginning and 50.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.20ms. Allocated memory is still 81.8MB. Free memory was 50.9MB in the beginning and 36.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1324.57ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 35.9MB in the beginning and 70.6MB in the end (delta: -34.7MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 10.41ms. Allocated memory is still 98.6MB. Free memory was 70.6MB in the beginning and 70.0MB in the end (delta: 571.8kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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] [L1582] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1582] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=12, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=12] [L1583] CALL CWE190_Integer_Overflow__int_fgets_preinc_34_bad() [L1555] int data; [L1556] CWE190_Integer_Overflow__int_fgets_preinc_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1573] ++data VAL [data=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={7:0}] - UnprovableResult [Line: 1573]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 24 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 02:19:43,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_624c470e-08c1-4f25-b759-8cdd392f59b3/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample