./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_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_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/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_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/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_d13a3402-c584-48ff-b426-9f524e3f30b9/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 df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:22:23,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:22:23,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:22:23,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:22:23,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:22:23,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:22:23,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:22:23,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:22:23,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:22:23,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:22:23,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:22:23,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:22:23,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:22:23,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:22:23,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:22:23,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:22:23,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:22:23,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:22:23,147 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:22:23,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:22:23,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:22:23,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:22:23,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:22:23,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:22:23,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:22:23,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:22:23,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:22:23,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:22:23,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:22:23,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:22:23,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:22:23,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:22:23,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:22:23,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:22:23,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:22:23,179 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:22:23,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:22:23,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:22:23,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:22:23,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:22:23,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:22:23,183 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 02:22:23,207 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:22:23,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:22:23,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:22:23,208 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:22:23,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:22:23,209 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:22:23,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:22:23,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:22:23,210 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:22:23,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:22:23,210 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:22:23,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:22:23,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:22:23,211 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:22:23,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:22:23,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:22:23,211 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:22:23,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:22:23,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:22:23,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:22:23,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:22:23,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:22:23,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:22:23,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:22:23,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:22:23,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:22:23,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:22:23,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:22:23,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:22:23,214 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:22:23,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:22:23,215 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:22:23,215 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:22:23,215 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_d13a3402-c584-48ff-b426-9f524e3f30b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 [2022-11-23 02:22:23,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:22:23,645 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:22:23,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:22:23,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:22:23,652 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:22:23,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-23 02:22:27,237 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:22:27,678 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:22:27,679 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-23 02:22:27,707 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/data/be3a114b4/a9853e38db3348be897b84efcd77cfae/FLAGe00b3193b [2022-11-23 02:22:27,724 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/data/be3a114b4/a9853e38db3348be897b84efcd77cfae [2022-11-23 02:22:27,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:22:27,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:22:27,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:22:27,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:22:27,736 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:22:27,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:27" (1/1) ... [2022-11-23 02:22:27,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40ca2c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:27, skipping insertion in model container [2022-11-23 02:22:27,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:27" (1/1) ... [2022-11-23 02:22:27,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:22:27,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:22:28,402 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:22:29,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:22:29,030 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:22:29,057 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:22:29,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:22:29,369 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:22:29,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29 WrapperNode [2022-11-23 02:22:29,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:22:29,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:22:29,372 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:22:29,372 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:22:29,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,477 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2022-11-23 02:22:29,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:22:29,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:22:29,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:22:29,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:22:29,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:22:29,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:22:29,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:22:29,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:22:29,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (1/1) ... [2022-11-23 02:22:29,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:22:29,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:22:29,595 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:22:29,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:22:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 02:22:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 02:22:29,654 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 02:22:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:22:29,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 02:22:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:22:29,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:22:29,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:22:29,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:22:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 02:22:29,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:22:29,864 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:22:29,866 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:22:30,119 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:22:30,126 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:22:30,126 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:22:30,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:30 BoogieIcfgContainer [2022-11-23 02:22:30,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:22:30,137 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:22:30,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:22:30,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:22:30,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:22:27" (1/3) ... [2022-11-23 02:22:30,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af389ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:30, skipping insertion in model container [2022-11-23 02:22:30,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:29" (2/3) ... [2022-11-23 02:22:30,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7af389ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:30, skipping insertion in model container [2022-11-23 02:22:30,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:30" (3/3) ... [2022-11-23 02:22:30,149 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-23 02:22:30,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:22:30,174 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 02:22:30,256 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:22:30,265 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;@5cf1ad74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:22:30,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 02:22:30,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 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 02:22:30,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 02:22:30,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:22:30,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:22:30,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:22:30,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:22:30,301 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-23 02:22:30,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:22:30,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868787124] [2022-11-23 02:22:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:22:30,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:22:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:22:30,560 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:22:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:22:30,699 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:22:30,701 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:22:30,704 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 02:22:30,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 02:22:30,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:22:30,717 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 02:22:30,729 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:22:30,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:22:30 BoogieIcfgContainer [2022-11-23 02:22:30,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:22:30,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:22:30,792 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:22:30,793 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:22:30,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:30" (3/4) ... [2022-11-23 02:22:30,799 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:22:30,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:22:30,801 INFO L158 Benchmark]: Toolchain (without parser) took 3071.67ms. Allocated memory is still 169.9MB. Free memory was 132.4MB in the beginning and 133.3MB in the end (delta: -851.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:22:30,802 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:22:30,803 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1639.29ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 81.0MB in the end (delta: 50.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-23 02:22:30,804 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.40ms. Allocated memory is still 169.9MB. Free memory was 81.0MB in the beginning and 78.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:22:30,807 INFO L158 Benchmark]: Boogie Preprocessor took 63.66ms. Allocated memory is still 169.9MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:22:30,813 INFO L158 Benchmark]: RCFGBuilder took 591.50ms. Allocated memory is still 169.9MB. Free memory was 76.1MB in the beginning and 63.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 02:22:30,815 INFO L158 Benchmark]: TraceAbstraction took 652.75ms. Allocated memory is still 169.9MB. Free memory was 62.8MB in the beginning and 133.3MB in the end (delta: -70.4MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2022-11-23 02:22:30,815 INFO L158 Benchmark]: Witness Printer took 7.81ms. Allocated memory is still 169.9MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:22:30,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 125.8MB. Free memory is still 93.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1639.29ms. Allocated memory is still 169.9MB. Free memory was 131.7MB in the beginning and 81.0MB in the end (delta: 50.7MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.40ms. Allocated memory is still 169.9MB. Free memory was 81.0MB in the beginning and 78.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.66ms. Allocated memory is still 169.9MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.50ms. Allocated memory is still 169.9MB. Free memory was 76.1MB in the beginning and 63.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 652.75ms. Allocated memory is still 169.9MB. Free memory was 62.8MB in the beginning and 133.3MB in the end (delta: -70.4MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Witness Printer took 7.81ms. Allocated memory is still 169.9MB. Free memory is still 133.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1578]: 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={1073741826:1073741830}, argc=1073741829, argv={1073741826:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=1073741829] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_51_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_multiply_51b_badSink(data) [L1576] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=-1073741825] [L1578] data * 2 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=-1073741825] - UnprovableResult [Line: 1578]: 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: 0.5s, 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 02:22:30,851 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/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_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/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_d13a3402-c584-48ff-b426-9f524e3f30b9/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 df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:22:33,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:22:33,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:22:33,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:22:33,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:22:33,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:22:33,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:22:33,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:22:33,817 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:22:33,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:22:33,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:22:33,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:22:33,827 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:22:33,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:22:33,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:22:33,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:22:33,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:22:33,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:22:33,848 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:22:33,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:22:33,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:22:33,863 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:22:33,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:22:33,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:22:33,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:22:33,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:22:33,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:22:33,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:22:33,882 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:22:33,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:22:33,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:22:33,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:22:33,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:22:33,888 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:22:33,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:22:33,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:22:33,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:22:33,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:22:33,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:22:33,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:22:33,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:22:33,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-23 02:22:33,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:22:33,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:22:33,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:22:33,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:22:33,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:22:33,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:22:33,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:22:33,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:22:33,924 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:22:33,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:22:33,925 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:22:33,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:22:33,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:22:33,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:22:33,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:22:33,926 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 02:22:33,926 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 02:22:33,926 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:22:33,926 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 02:22:33,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:22:33,927 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:22:33,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:22:33,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:22:33,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:22:33,928 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:22:33,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:22:33,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:22:33,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:22:33,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:22:33,929 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-23 02:22:33,930 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 02:22:33,930 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:22:33,930 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:22:33,930 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:22:33,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:22:33,931 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-23 02:22:33,931 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_d13a3402-c584-48ff-b426-9f524e3f30b9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 [2022-11-23 02:22:34,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:22:34,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:22:34,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:22:34,401 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:22:34,402 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:22:34,403 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-23 02:22:37,947 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:22:38,421 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:22:38,423 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-23 02:22:38,463 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/data/2bbced24b/10eb5970f6fb4f8e80cfb34842001528/FLAGd5dcbad1c [2022-11-23 02:22:38,481 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/data/2bbced24b/10eb5970f6fb4f8e80cfb34842001528 [2022-11-23 02:22:38,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:22:38,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:22:38,494 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:22:38,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:22:38,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:22:38,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:38" (1/1) ... [2022-11-23 02:22:38,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a559376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:38, skipping insertion in model container [2022-11-23 02:22:38,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:22:38" (1/1) ... [2022-11-23 02:22:38,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:22:38,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:22:39,149 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:22:39,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:22:39,807 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:22:39,830 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 02:22:39,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:22:40,100 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:22:40,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40 WrapperNode [2022-11-23 02:22:40,101 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:22:40,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:22:40,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:22:40,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:22:40,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,217 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-11-23 02:22:40,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:22:40,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:22:40,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:22:40,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:22:40,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,285 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:22:40,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:22:40,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:22:40,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:22:40,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (1/1) ... [2022-11-23 02:22:40,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:22:40,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:22:40,369 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:22:40,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:22:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 02:22:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 02:22:40,428 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 02:22:40,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:22:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 02:22:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:22:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:22:40,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:22:40,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:22:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 02:22:40,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 02:22:40,700 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:22:40,703 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:22:40,938 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:22:40,951 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:22:40,953 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 02:22:40,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:40 BoogieIcfgContainer [2022-11-23 02:22:40,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:22:40,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:22:40,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:22:40,966 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:22:40,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:22:38" (1/3) ... [2022-11-23 02:22:40,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2d6660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:40, skipping insertion in model container [2022-11-23 02:22:40,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:22:40" (2/3) ... [2022-11-23 02:22:40,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2d6660 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:22:40, skipping insertion in model container [2022-11-23 02:22:40,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:40" (3/3) ... [2022-11-23 02:22:40,972 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-11-23 02:22:40,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:22:40,999 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 02:22:41,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:22:41,087 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;@6881fabb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:22:41,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 02:22:41,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 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 02:22:41,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 02:22:41,106 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:22:41,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:22:41,108 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 02:22:41,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:22:41,116 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-23 02:22:41,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-23 02:22:41,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411150143] [2022-11-23 02:22:41,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:22:41,139 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:22:41,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/mathsat [2022-11-23 02:22:41,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 02:22:41,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 02:22:41,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:22:41,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:22:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:22:41,479 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-23 02:22:41,486 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:22:41,488 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 02:22:41,491 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 02:22:41,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 02:22:41,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/bin/uautomizer-QkZJyEgLgS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 02:22:41,708 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 02:22:41,717 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:22:41,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:22:41 BoogieIcfgContainer [2022-11-23 02:22:41,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:22:41,779 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:22:41,780 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:22:41,780 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:22:41,781 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:22:40" (3/4) ... [2022-11-23 02:22:41,787 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 02:22:41,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:22:41,789 INFO L158 Benchmark]: Toolchain (without parser) took 3298.52ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 35.0MB in the beginning and 41.7MB in the end (delta: -6.7MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2022-11-23 02:22:41,790 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:22:41,791 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1606.75ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 34.8MB in the beginning and 54.6MB in the end (delta: -19.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-11-23 02:22:41,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.50ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 51.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:22:41,799 INFO L158 Benchmark]: Boogie Preprocessor took 81.84ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 49.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:22:41,801 INFO L158 Benchmark]: RCFGBuilder took 654.57ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 59.6MB in the end (delta: -10.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 02:22:41,801 INFO L158 Benchmark]: TraceAbstraction took 815.83ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 41.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 02:22:41,803 INFO L158 Benchmark]: Witness Printer took 8.09ms. Allocated memory is still 92.3MB. Free memory was 41.9MB in the beginning and 41.7MB in the end (delta: 212.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:22:41,812 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory was 46.4MB in the beginning and 46.3MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1606.75ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 34.8MB in the beginning and 54.6MB in the end (delta: -19.8MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.50ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 51.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.84ms. Allocated memory is still 92.3MB. Free memory was 51.3MB in the beginning and 49.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 654.57ms. Allocated memory is still 92.3MB. Free memory was 49.5MB in the beginning and 59.6MB in the end (delta: -10.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 815.83ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 41.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 8.09ms. Allocated memory is still 92.3MB. Free memory was 41.9MB in the beginning and 41.7MB in the end (delta: 212.0kB). 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: 1578]: 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_multiply_51_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_multiply_51b_badSink(data) [L1576] COND TRUE data < 0 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] [L1578] data * 2 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: 1578]: 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: 0.7s, 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 02:22:41,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d13a3402-c584-48ff-b426-9f524e3f30b9/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