./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_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_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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 b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014 --- 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 03:58:17,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:58:17,334 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:58:17,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:58:17,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:58:17,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:58:17,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:58:17,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:58:17,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:58:17,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:58:17,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:58:17,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:58:17,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:58:17,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:58:17,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:58:17,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:58:17,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:58:17,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:58:17,372 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:58:17,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:58:17,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:58:17,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:58:17,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:58:17,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:58:17,383 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:58:17,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:58:17,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:58:17,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:58:17,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:58:17,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:58:17,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:58:17,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:58:17,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:58:17,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:58:17,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:58:17,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:58:17,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:58:17,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:58:17,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:58:17,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:58:17,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:58:17,403 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 03:58:17,426 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:58:17,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:58:17,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:58:17,427 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:58:17,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:58:17,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:58:17,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:58:17,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:58:17,430 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:58:17,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:58:17,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:58:17,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:58:17,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:58:17,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:58:17,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:58:17,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:58:17,432 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:58:17,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:58:17,432 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:58:17,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:58:17,433 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:58:17,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:58:17,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:58:17,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:58:17,434 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:58:17,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:58:17,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:58:17,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:58:17,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:58:17,435 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:58:17,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:58:17,435 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:58:17,436 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:58:17,436 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_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014 [2022-11-23 03:58:17,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:58:17,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:58:17,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:58:17,734 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:58:17,735 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:58:17,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i [2022-11-23 03:58:20,692 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:58:21,086 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:58:21,087 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i [2022-11-23 03:58:21,125 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/data/5cfb13334/40d01d611466443aa0e42da66bb5f172/FLAG4157b1632 [2022-11-23 03:58:21,144 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/data/5cfb13334/40d01d611466443aa0e42da66bb5f172 [2022-11-23 03:58:21,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:58:21,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:58:21,154 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:21,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:58:21,158 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:58:21,159 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:21" (1/1) ... [2022-11-23 03:58:21,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ecd071 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:21, skipping insertion in model container [2022-11-23 03:58:21,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:21" (1/1) ... [2022-11-23 03:58:21,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:58:21,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:58:21,735 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:58:22,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:22,348 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:58:22,380 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:58:22,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:22,587 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:58:22,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22 WrapperNode [2022-11-23 03:58:22,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:22,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:22,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:58:22,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:58:22,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,662 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 60 [2022-11-23 03:58:22,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:22,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:58:22,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:58:22,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:58:22,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,676 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:58:22,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:58:22,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:58:22,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:58:22,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (1/1) ... [2022-11-23 03:58:22,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:58:22,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:22,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:22,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:58:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 03:58:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 03:58:22,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 03:58:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:58:22,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 03:58:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:58:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:58:22,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:58:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:58:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 03:58:22,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:58:22,963 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:58:22,965 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:58:23,155 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:58:23,160 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:58:23,161 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:58:23,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:23 BoogieIcfgContainer [2022-11-23 03:58:23,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:58:23,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:58:23,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:58:23,168 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:58:23,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:58:21" (1/3) ... [2022-11-23 03:58:23,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207f5e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:23, skipping insertion in model container [2022-11-23 03:58:23,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:22" (2/3) ... [2022-11-23 03:58:23,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207f5e3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:23, skipping insertion in model container [2022-11-23 03:58:23,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:23" (3/3) ... [2022-11-23 03:58:23,171 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i [2022-11-23 03:58:23,190 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:58:23,190 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:58:23,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:58:23,287 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;@55cd31d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:58:23,288 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:58:23,292 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:58:23,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:58:23,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:58:23,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:23,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:58:23,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:23,314 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-11-23 03:58:23,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:58:23,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4114730] [2022-11-23 03:58:23,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:23,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:58:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:23,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:23,630 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:58:23,632 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:58:23,634 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 03:58:23,635 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 03:58:23,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:58:23,642 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:58:23,649 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:58:23,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:58:23 BoogieIcfgContainer [2022-11-23 03:58:23,700 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:58:23,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:58:23,703 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:58:23,704 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:58:23,704 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:23" (3/4) ... [2022-11-23 03:58:23,708 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:58:23,708 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:58:23,710 INFO L158 Benchmark]: Toolchain (without parser) took 2558.07ms. Allocated memory is still 201.3MB. Free memory was 154.9MB in the beginning and 116.4MB in the end (delta: 38.5MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2022-11-23 03:58:23,711 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:23,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1433.74ms. Allocated memory is still 201.3MB. Free memory was 154.9MB in the beginning and 152.1MB in the end (delta: 2.8MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. [2022-11-23 03:58:23,713 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.49ms. Allocated memory is still 201.3MB. Free memory was 152.1MB in the beginning and 148.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 03:58:23,715 INFO L158 Benchmark]: Boogie Preprocessor took 63.37ms. Allocated memory is still 201.3MB. Free memory was 148.7MB in the beginning and 147.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:23,718 INFO L158 Benchmark]: RCFGBuilder took 435.65ms. Allocated memory is still 201.3MB. Free memory was 147.4MB in the beginning and 134.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 03:58:23,719 INFO L158 Benchmark]: TraceAbstraction took 535.89ms. Allocated memory is still 201.3MB. Free memory was 134.0MB in the beginning and 116.4MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 03:58:23,723 INFO L158 Benchmark]: Witness Printer took 6.27ms. Allocated memory is still 201.3MB. Free memory was 116.4MB in the beginning and 116.4MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:23,731 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 121.6MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1433.74ms. Allocated memory is still 201.3MB. Free memory was 154.9MB in the beginning and 152.1MB in the end (delta: 2.8MB). Peak memory consumption was 51.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.49ms. Allocated memory is still 201.3MB. Free memory was 152.1MB in the beginning and 148.7MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.37ms. Allocated memory is still 201.3MB. Free memory was 148.7MB in the beginning and 147.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 435.65ms. Allocated memory is still 201.3MB. Free memory was 147.4MB in the beginning and 134.0MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 535.89ms. Allocated memory is still 201.3MB. Free memory was 134.0MB in the beginning and 116.4MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 6.27ms. Allocated memory is still 201.3MB. Free memory was 116.4MB in the beginning and 116.4MB in the end (delta: 2.7kB). 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565. 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] [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [#in~argv={1073741827:1073741831}, argc=1073741830, argv={1073741827:1073741831}, 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=1073741830] [L1578] CALL CWE191_Integer_Underflow__int_fgets_postdec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL funcPtr(data) [L1551] data-- VAL [data=-2147483648, data--=-2147483648, 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~data-unknown=-2147483648] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 03:58:23,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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 b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014 --- 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 03:58:26,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:58:26,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:58:26,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:58:26,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:58:26,305 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:58:26,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:58:26,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:58:26,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:58:26,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:58:26,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:58:26,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:58:26,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:58:26,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:58:26,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:58:26,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:58:26,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:58:26,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:58:26,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:58:26,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:58:26,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:58:26,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:58:26,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:58:26,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:58:26,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:58:26,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:58:26,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:58:26,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:58:26,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:58:26,363 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:58:26,363 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:58:26,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:58:26,366 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:58:26,367 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:58:26,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:58:26,396 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:58:26,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:58:26,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:58:26,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:58:26,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:58:26,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:58:26,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-23 03:58:26,443 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:58:26,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:58:26,445 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:58:26,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:58:26,446 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:58:26,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:58:26,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:58:26,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:58:26,448 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:58:26,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:58:26,449 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:58:26,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:58:26,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:58:26,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:58:26,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:58:26,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 03:58:26,450 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 03:58:26,450 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:58:26,450 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 03:58:26,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:58:26,451 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:58:26,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:58:26,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:58:26,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:58:26,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:58:26,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:58:26,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:58:26,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:58:26,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:58:26,453 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 03:58:26,453 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 03:58:26,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:58:26,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:58:26,453 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:58:26,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:58:26,454 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 03:58:26,454 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_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9fbf860090144fde4aeabd07a1f215f122b8dafbd1dea66fb6a578d61759014 [2022-11-23 03:58:26,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:58:26,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:58:26,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:58:26,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:58:26,918 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:58:26,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i [2022-11-23 03:58:30,196 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:58:30,611 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:58:30,616 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i [2022-11-23 03:58:30,647 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/data/103a51207/fb8d6cdebb62449887f079bc9d4cb398/FLAG12b213788 [2022-11-23 03:58:30,670 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/data/103a51207/fb8d6cdebb62449887f079bc9d4cb398 [2022-11-23 03:58:30,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:58:30,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:58:30,678 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:30,678 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:58:30,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:58:30,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:30" (1/1) ... [2022-11-23 03:58:30,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bccc946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:30, skipping insertion in model container [2022-11-23 03:58:30,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:58:30" (1/1) ... [2022-11-23 03:58:30,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:58:30,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:58:31,129 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:58:31,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:31,811 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:58:31,831 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 03:58:31,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:58:32,056 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:58:32,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32 WrapperNode [2022-11-23 03:58:32,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:58:32,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:32,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:58:32,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:58:32,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,115 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 59 [2022-11-23 03:58:32,115 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:58:32,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:58:32,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:58:32,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:58:32,126 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:58:32,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:58:32,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:58:32,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:58:32,153 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (1/1) ... [2022-11-23 03:58:32,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:58:32,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:58:32,192 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:58:32,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:58:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 03:58:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 03:58:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 03:58:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:58:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 03:58:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:58:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:58:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:58:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:58:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 03:58:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 03:58:32,493 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:58:32,494 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:58:32,698 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:58:32,704 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:58:32,711 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 03:58:32,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:32 BoogieIcfgContainer [2022-11-23 03:58:32,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:58:32,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:58:32,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:58:32,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:58:32,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:58:30" (1/3) ... [2022-11-23 03:58:32,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea94613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:32, skipping insertion in model container [2022-11-23 03:58:32,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:58:32" (2/3) ... [2022-11-23 03:58:32,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea94613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:58:32, skipping insertion in model container [2022-11-23 03:58:32,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:32" (3/3) ... [2022-11-23 03:58:32,729 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_44_bad.i [2022-11-23 03:58:32,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:58:32,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 03:58:32,816 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:58:32,821 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;@5228fafc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:58:32,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 03:58:32,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 03:58:32,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 03:58:32,830 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 03:58:32,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:58:32,832 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 03:58:32,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:58:32,836 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-11-23 03:58:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 03:58:32,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [828896227] [2022-11-23 03:58:32,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:58:32,852 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 03:58:32,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 03:58:32,858 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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 03:58:32,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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 03:58:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:33,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:58:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:58:33,141 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 03:58:33,143 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:58:33,144 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 03:58:33,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 03:58:33,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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 03:58:33,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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 03:58:33,351 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 03:58:33,356 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 03:58:33,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:58:33 BoogieIcfgContainer [2022-11-23 03:58:33,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 03:58:33,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 03:58:33,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 03:58:33,386 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 03:58:33,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:58:32" (3/4) ... [2022-11-23 03:58:33,389 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 03:58:33,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 03:58:33,394 INFO L158 Benchmark]: Toolchain (without parser) took 2716.49ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 54.5MB in the beginning and 56.4MB in the end (delta: -1.9MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-11-23 03:58:33,394 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:33,395 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1379.15ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 54.5MB in the beginning and 62.2MB in the end (delta: -7.7MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2022-11-23 03:58:33,395 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.13ms. Allocated memory is still 102.8MB. Free memory was 61.7MB in the beginning and 59.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:58:33,396 INFO L158 Benchmark]: Boogie Preprocessor took 34.91ms. Allocated memory is still 102.8MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 03:58:33,396 INFO L158 Benchmark]: RCFGBuilder took 565.77ms. Allocated memory is still 102.8MB. Free memory was 56.4MB in the beginning and 74.5MB in the end (delta: -18.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 03:58:33,397 INFO L158 Benchmark]: TraceAbstraction took 665.04ms. Allocated memory is still 102.8MB. Free memory was 73.8MB in the beginning and 57.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 03:58:33,397 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 102.8MB. Free memory was 56.4MB in the beginning and 56.4MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 03:58:33,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 79.7MB. Free memory is still 57.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1379.15ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 54.5MB in the beginning and 62.2MB in the end (delta: -7.7MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.13ms. Allocated memory is still 102.8MB. Free memory was 61.7MB in the beginning and 59.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.91ms. Allocated memory is still 102.8MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 565.77ms. Allocated memory is still 102.8MB. Free memory was 56.4MB in the beginning and 74.5MB in the end (delta: -18.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 665.04ms. Allocated memory is still 102.8MB. Free memory was 73.8MB in the beginning and 57.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 102.8MB. Free memory was 56.4MB in the beginning and 56.4MB in the end (delta: 2.6kB). 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565. 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] [L1577] 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) [L1577] 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] [L1578] CALL CWE191_Integer_Underflow__int_fgets_postdec_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL funcPtr(data) [L1551] data-- VAL [data=-2147483648, data--=-2147483648, 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~data-unknown=-2147483648] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 03:58:33,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc54fa0-6b15-40cc-983c-7bdefd34b1f6/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