./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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_73d7384c-6e78-4400-8054-73da56b0d800/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 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c --- 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 01:58:39,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:58:39,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:58:39,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:58:39,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:58:39,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:58:39,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:58:39,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:58:39,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:58:39,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:58:39,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:58:39,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:58:39,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:58:39,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:58:39,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:58:39,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:58:39,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:58:39,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:58:39,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:58:39,686 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:58:39,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:58:39,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:58:39,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:58:39,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:58:39,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:58:39,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:58:39,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:58:39,710 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:58:39,710 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:58:39,711 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:58:39,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:58:39,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:58:39,713 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:58:39,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:58:39,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:58:39,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:58:39,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:58:39,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:58:39,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:58:39,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:58:39,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:58:39,725 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 01:58:39,768 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:58:39,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:58:39,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:58:39,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:58:39,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:58:39,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:58:39,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:58:39,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:58:39,772 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:58:39,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:58:39,773 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 01:58:39,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 01:58:39,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:58:39,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 01:58:39,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:58:39,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 01:58:39,775 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 01:58:39,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 01:58:39,775 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:58:39,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 01:58:39,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:58:39,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:58:39,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:58:39,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:58:39,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:58:39,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:58:39,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 01:58:39,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 01:58:39,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 01:58:39,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:58:39,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 01:58:39,779 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:58:39,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:58:39,779 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_73d7384c-6e78-4400-8054-73da56b0d800/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c [2022-11-23 01:58:40,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:58:40,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:58:40,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:58:40,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:58:40,117 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:58:40,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2022-11-23 01:58:43,137 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:58:43,615 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:58:43,615 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2022-11-23 01:58:43,644 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/data/135baec92/108f86bf1d74412ea0893c06476206ef/FLAG39136f25b [2022-11-23 01:58:43,663 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/data/135baec92/108f86bf1d74412ea0893c06476206ef [2022-11-23 01:58:43,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:58:43,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:58:43,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:58:43,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:58:43,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:58:43,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:43" (1/1) ... [2022-11-23 01:58:43,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c3d529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:43, skipping insertion in model container [2022-11-23 01:58:43,678 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:43" (1/1) ... [2022-11-23 01:58:43,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:58:43,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:58:44,130 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 01:58:44,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:58:44,733 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:58:44,769 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 01:58:44,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:58:45,054 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:58:45,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45 WrapperNode [2022-11-23 01:58:45,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:58:45,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:58:45,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:58:45,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:58:45,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,097 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,144 INFO L138 Inliner]: procedures = 503, calls = 65, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 57 [2022-11-23 01:58:45,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:58:45,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:58:45,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:58:45,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:58:45,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,163 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,186 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:58:45,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:58:45,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:58:45,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:58:45,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (1/1) ... [2022-11-23 01:58:45,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:58:45,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:58:45,237 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:58:45,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:58:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 01:58:45,282 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 01:58:45,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 01:58:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 01:58:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 01:58:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 01:58:45,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:58:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:58:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 01:58:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 01:58:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 01:58:45,521 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:58:45,523 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:58:45,670 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:58:45,676 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:58:45,676 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 01:58:45,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:45 BoogieIcfgContainer [2022-11-23 01:58:45,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:58:45,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:58:45,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:58:45,684 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:58:45,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:58:43" (1/3) ... [2022-11-23 01:58:45,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630c2718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:45, skipping insertion in model container [2022-11-23 01:58:45,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:45" (2/3) ... [2022-11-23 01:58:45,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630c2718 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:45, skipping insertion in model container [2022-11-23 01:58:45,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:45" (3/3) ... [2022-11-23 01:58:45,687 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2022-11-23 01:58:45,706 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:58:45,707 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 01:58:45,752 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:58:45,760 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;@bc67f9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:58:45,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 01:58:45,764 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 21 states have internal predecessors, (22), 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 01:58:45,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 01:58:45,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:58:45,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:58:45,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 01:58:45,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:58:45,779 INFO L85 PathProgramCache]: Analyzing trace with hash 290656206, now seen corresponding path program 1 times [2022-11-23 01:58:45,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 01:58:45,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170870136] [2022-11-23 01:58:45,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:58:45,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 01:58:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:58:45,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:58:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:58:46,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 01:58:46,034 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 01:58:46,036 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 01:58:46,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 01:58:46,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 01:58:46,045 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 01:58:46,055 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 01:58:46,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:58:46 BoogieIcfgContainer [2022-11-23 01:58:46,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 01:58:46,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 01:58:46,109 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 01:58:46,110 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 01:58:46,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:45" (3/4) ... [2022-11-23 01:58:46,113 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 01:58:46,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 01:58:46,115 INFO L158 Benchmark]: Toolchain (without parser) took 2446.76ms. Allocated memory is still 192.9MB. Free memory was 157.3MB in the beginning and 109.4MB in the end (delta: 47.9MB). Peak memory consumption was 46.5MB. Max. memory is 16.1GB. [2022-11-23 01:58:46,116 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:58:46,117 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1383.62ms. Allocated memory is still 192.9MB. Free memory was 157.3MB in the beginning and 144.0MB in the end (delta: 13.3MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. [2022-11-23 01:58:46,117 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.46ms. Allocated memory is still 192.9MB. Free memory was 144.0MB in the beginning and 141.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:58:46,123 INFO L158 Benchmark]: Boogie Preprocessor took 44.56ms. Allocated memory is still 192.9MB. Free memory was 141.7MB in the beginning and 139.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:58:46,124 INFO L158 Benchmark]: RCFGBuilder took 487.69ms. Allocated memory is still 192.9MB. Free memory was 139.8MB in the beginning and 127.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 01:58:46,125 INFO L158 Benchmark]: TraceAbstraction took 426.02ms. Allocated memory is still 192.9MB. Free memory was 126.2MB in the beginning and 109.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 01:58:46,126 INFO L158 Benchmark]: Witness Printer took 5.58ms. Allocated memory is still 192.9MB. Free memory is still 109.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:58:46,134 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 138.4MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1383.62ms. Allocated memory is still 192.9MB. Free memory was 157.3MB in the beginning and 144.0MB in the end (delta: 13.3MB). Peak memory consumption was 54.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.46ms. Allocated memory is still 192.9MB. Free memory was 144.0MB in the beginning and 141.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.56ms. Allocated memory is still 192.9MB. Free memory was 141.7MB in the beginning and 139.8MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 487.69ms. Allocated memory is still 192.9MB. Free memory was 139.8MB in the beginning and 127.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 426.02ms. Allocated memory is still 192.9MB. Free memory was 126.2MB in the beginning and 109.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.58ms. Allocated memory is still 192.9MB. Free memory is still 109.4MB. 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: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [#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) [L1569] RET printLine("Calling bad()...") VAL [#in~argv={1073741827:1073741830}, argc=1073741829, argv={1073741827:1073741830}, 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=1073741829] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_53d_badSink(data) [L1587] data - 1 VAL [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: 1587]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 01:58:46,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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_73d7384c-6e78-4400-8054-73da56b0d800/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 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c --- 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 01:58:48,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 01:58:48,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 01:58:48,832 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 01:58:48,833 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 01:58:48,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 01:58:48,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 01:58:48,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 01:58:48,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 01:58:48,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 01:58:48,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 01:58:48,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 01:58:48,855 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 01:58:48,857 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 01:58:48,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 01:58:48,865 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 01:58:48,867 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 01:58:48,868 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 01:58:48,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 01:58:48,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 01:58:48,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 01:58:48,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 01:58:48,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 01:58:48,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 01:58:48,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 01:58:48,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 01:58:48,892 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 01:58:48,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 01:58:48,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 01:58:48,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 01:58:48,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 01:58:48,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 01:58:48,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 01:58:48,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 01:58:48,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 01:58:48,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 01:58:48,914 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 01:58:48,914 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 01:58:48,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 01:58:48,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 01:58:48,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 01:58:48,921 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-23 01:58:48,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 01:58:48,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 01:58:48,966 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 01:58:48,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 01:58:48,967 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 01:58:48,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 01:58:48,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 01:58:48,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 01:58:48,969 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 01:58:48,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 01:58:48,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 01:58:48,971 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 01:58:48,971 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 01:58:48,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 01:58:48,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 01:58:48,972 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 01:58:48,973 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 01:58:48,973 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 01:58:48,973 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 01:58:48,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 01:58:48,974 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 01:58:48,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 01:58:48,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 01:58:48,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 01:58:48,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 01:58:48,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:58:48,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 01:58:48,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 01:58:48,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 01:58:48,977 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 01:58:48,977 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 01:58:48,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 01:58:48,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 01:58:48,978 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 01:58:48,979 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 01:58:48,979 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 01:58:48,979 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_73d7384c-6e78-4400-8054-73da56b0d800/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 874c22c299d735a6f05b6f1a9ad4620ab8282997794570fca1e7032194d6643c [2022-11-23 01:58:49,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 01:58:49,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 01:58:49,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 01:58:49,475 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 01:58:49,476 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 01:58:49,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2022-11-23 01:58:52,577 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 01:58:53,007 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 01:58:53,007 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2022-11-23 01:58:53,051 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/data/39d05f8a6/d41a21e8063c479bad6d867c4fc2ebc6/FLAGc9a92e39f [2022-11-23 01:58:53,072 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/data/39d05f8a6/d41a21e8063c479bad6d867c4fc2ebc6 [2022-11-23 01:58:53,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 01:58:53,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 01:58:53,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 01:58:53,080 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 01:58:53,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 01:58:53,085 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:53" (1/1) ... [2022-11-23 01:58:53,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51148a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:53, skipping insertion in model container [2022-11-23 01:58:53,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:58:53" (1/1) ... [2022-11-23 01:58:53,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 01:58:53,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 01:58:53,569 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 01:58:54,371 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:58:54,388 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 01:58:54,422 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 01:58:54,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 01:58:54,670 INFO L208 MainTranslator]: Completed translation [2022-11-23 01:58:54,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54 WrapperNode [2022-11-23 01:58:54,671 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 01:58:54,672 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 01:58:54,672 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 01:58:54,672 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 01:58:54,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,728 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,769 INFO L138 Inliner]: procedures = 508, calls = 65, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 56 [2022-11-23 01:58:54,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 01:58:54,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 01:58:54,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 01:58:54,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 01:58:54,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,792 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,800 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,802 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,805 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 01:58:54,811 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 01:58:54,811 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 01:58:54,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 01:58:54,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (1/1) ... [2022-11-23 01:58:54,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 01:58:54,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 01:58:54,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 01:58:54,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 01:58:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 01:58:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 01:58:54,895 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 01:58:54,895 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 01:58:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 01:58:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 01:58:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 01:58:54,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 01:58:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 01:58:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 01:58:54,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 01:58:55,056 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 01:58:55,058 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 01:58:55,217 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 01:58:55,223 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 01:58:55,223 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 01:58:55,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:55 BoogieIcfgContainer [2022-11-23 01:58:55,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 01:58:55,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 01:58:55,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 01:58:55,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 01:58:55,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:58:53" (1/3) ... [2022-11-23 01:58:55,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c78d256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:55, skipping insertion in model container [2022-11-23 01:58:55,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:58:54" (2/3) ... [2022-11-23 01:58:55,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c78d256 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:58:55, skipping insertion in model container [2022-11-23 01:58:55,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:55" (3/3) ... [2022-11-23 01:58:55,235 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_53_bad.i [2022-11-23 01:58:55,255 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 01:58:55,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 01:58:55,333 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 01:58:55,340 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;@27c7a303, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 01:58:55,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 01:58:55,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 21 states have internal predecessors, (22), 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 01:58:55,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 01:58:55,353 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 01:58:55,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 01:58:55,355 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 01:58:55,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 01:58:55,361 INFO L85 PathProgramCache]: Analyzing trace with hash 290656206, now seen corresponding path program 1 times [2022-11-23 01:58:55,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 01:58:55,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [223001832] [2022-11-23 01:58:55,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 01:58:55,376 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 01:58:55,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 01:58:55,384 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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 01:58:55,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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 01:58:55,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:58:55,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 01:58:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 01:58:55,689 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 01:58:55,691 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 01:58:55,693 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 01:58:55,696 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 01:58:55,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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 01:58:55,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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 01:58:55,909 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 01:58:55,914 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 01:58:55,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:58:55 BoogieIcfgContainer [2022-11-23 01:58:55,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 01:58:55,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 01:58:55,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 01:58:55,953 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 01:58:55,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:58:55" (3/4) ... [2022-11-23 01:58:55,957 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 01:58:55,957 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 01:58:55,958 INFO L158 Benchmark]: Toolchain (without parser) took 2881.46ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 50.1MB in the beginning and 61.8MB in the end (delta: -11.7MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-11-23 01:58:55,959 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:58:55,959 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1591.00ms. Allocated memory is still 73.4MB. Free memory was 49.9MB in the beginning and 35.1MB in the end (delta: 14.8MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-11-23 01:58:55,960 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.58ms. Allocated memory is still 73.4MB. Free memory was 35.1MB in the beginning and 31.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 01:58:55,960 INFO L158 Benchmark]: Boogie Preprocessor took 40.10ms. Allocated memory is still 73.4MB. Free memory was 31.9MB in the beginning and 29.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 01:58:55,961 INFO L158 Benchmark]: RCFGBuilder took 414.68ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 29.9MB in the beginning and 55.0MB in the end (delta: -25.1MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-11-23 01:58:55,962 INFO L158 Benchmark]: TraceAbstraction took 724.32ms. Allocated memory is still 94.4MB. Free memory was 54.5MB in the beginning and 61.8MB in the end (delta: -7.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 01:58:55,962 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 94.4MB. Free memory is still 61.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 01:58:55,983 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1591.00ms. Allocated memory is still 73.4MB. Free memory was 49.9MB in the beginning and 35.1MB in the end (delta: 14.8MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.58ms. Allocated memory is still 73.4MB. Free memory was 35.1MB in the beginning and 31.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.10ms. Allocated memory is still 73.4MB. Free memory was 31.9MB in the beginning and 29.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 414.68ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 29.9MB in the beginning and 55.0MB in the end (delta: -25.1MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * TraceAbstraction took 724.32ms. Allocated memory is still 94.4MB. Free memory was 54.5MB in the beginning and 61.8MB in the end (delta: -7.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 94.4MB. Free memory is still 61.8MB. 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: 1587]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [#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) [L1569] 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] [L1570] CALL CWE191_Integer_Underflow__int_fgets_sub_53_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_sub_53b_badSink(data) [L1577] CALL CWE191_Integer_Underflow__int_fgets_sub_53c_badSink(data) [L1582] CALL CWE191_Integer_Underflow__int_fgets_sub_53d_badSink(data) [L1587] data - 1 VAL [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: 1587]: 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, 25 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=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 01:58:56,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73d7384c-6e78-4400-8054-73da56b0d800/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