./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8 --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 8ce8a49ea312f5be0225d8073f8ea160066b763122d2873f0570cf84c2bb0e57 --- 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-2329fc7 [2022-12-13 18:58:49,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:58:49,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:58:49,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:58:49,126 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:58:49,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:58:49,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:58:49,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:58:49,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:58:49,131 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:58:49,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:58:49,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:58:49,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:58:49,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:58:49,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:58:49,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:58:49,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:58:49,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:58:49,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:58:49,138 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:58:49,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:58:49,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:58:49,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:58:49,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:58:49,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:58:49,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:58:49,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:58:49,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:58:49,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:58:49,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:58:49,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:58:49,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:58:49,147 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:58:49,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:58:49,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:58:49,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:58:49,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:58:49,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:58:49,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:58:49,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:58:49,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:58:49,152 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 18:58:49,166 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:58:49,167 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:58:49,167 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:58:49,167 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:58:49,167 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:58:49,168 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:58:49,168 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:58:49,168 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:58:49,168 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:58:49,169 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:58:49,169 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:58:49,169 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:58:49,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:58:49,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:58:49,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:58:49,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:58:49,170 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:58:49,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:58:49,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:58:49,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:58:49,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:58:49,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:58:49,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:58:49,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:58:49,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:58:49,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:58:49,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:58:49,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:58:49,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:58:49,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:58:49,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:58:49,172 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:58:49,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:58:49,172 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:58:49,172 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_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ce8a49ea312f5be0225d8073f8ea160066b763122d2873f0570cf84c2bb0e57 [2022-12-13 18:58:49,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:58:49,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:58:49,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:58:49,360 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:58:49,361 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:58:49,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_66_bad.i [2022-12-13 18:58:52,044 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:58:52,313 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:58:52,314 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_66_bad.i [2022-12-13 18:58:52,328 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/data/4b0e7c43e/40453018c6764644b2e1d258411bfdc5/FLAG0d2df2123 [2022-12-13 18:58:52,340 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/data/4b0e7c43e/40453018c6764644b2e1d258411bfdc5 [2022-12-13 18:58:52,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:58:52,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:58:52,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:58:52,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:58:52,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:58:52,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:58:52" (1/1) ... [2022-12-13 18:58:52,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e1e18a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:52, skipping insertion in model container [2022-12-13 18:58:52,350 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:58:52" (1/1) ... [2022-12-13 18:58:52,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:58:52,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:58:52,636 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:58:52,938 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:58:52,944 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:58:52,946 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:58:52,949 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:58:52,950 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:58:52,971 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:58:52,974 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:58:52,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:58:52,988 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:58:53,007 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:58:53,044 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:58:53,046 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:58:53,046 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:58:53,048 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:58:53,048 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:58:53,052 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:58:53,053 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:58:53,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:58:53,161 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:58:53,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53 WrapperNode [2022-12-13 18:58:53,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:58:53,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:58:53,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:58:53,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:58:53,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,185 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,200 INFO L138 Inliner]: procedures = 501, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-12-13 18:58:53,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:58:53,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:58:53,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:58:53,201 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:58:53,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,216 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:58:53,219 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:58:53,219 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:58:53,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:58:53,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (1/1) ... [2022-12-13 18:58:53,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:58:53,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:58:53,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:58:53,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:58:53,268 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:58:53,269 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:58:53,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:58:53,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:58:53,371 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:58:53,372 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:58:53,472 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:58:53,478 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:58:53,478 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:58:53,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:58:53 BoogieIcfgContainer [2022-12-13 18:58:53,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:58:53,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:58:53,483 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:58:53,487 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:58:53,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:58:52" (1/3) ... [2022-12-13 18:58:53,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7ec21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:58:53, skipping insertion in model container [2022-12-13 18:58:53,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:53" (2/3) ... [2022-12-13 18:58:53,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a7ec21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:58:53, skipping insertion in model container [2022-12-13 18:58:53,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:58:53" (3/3) ... [2022-12-13 18:58:53,489 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_66_bad.i [2022-12-13 18:58:53,506 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:58:53,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:58:53,550 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:58:53,555 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;@6ec6c441, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:58:53,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:58:53,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-12-13 18:58:53,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 18:58:53,563 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:58:53,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:58:53,564 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:58:53,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:58:53,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 18:58:53,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:58:53,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268836810] [2022-12-13 18:58:53,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:58:53,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:58:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:58:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 18:58:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:58:54,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:58:54,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:58:54,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268836810] [2022-12-13 18:58:54,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268836810] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:58:54,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:58:54,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 18:58:54,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212129458] [2022-12-13 18:58:54,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:58:54,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:58:54,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:58:54,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:58:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:58:54,116 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:58:54,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:58:54,154 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 18:58:54,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:58:54,157 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 18:58:54,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:58:54,164 INFO L225 Difference]: With dead ends: 23 [2022-12-13 18:58:54,164 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 18:58:54,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:58:54,170 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 15 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:58:54,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 65 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:58:54,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 18:58:54,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 18:58:54,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:58:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 18:58:54,203 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 18:58:54,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:58:54,204 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 18:58:54,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:58:54,205 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 18:58:54,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:58:54,206 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:58:54,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:58:54,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:58:54,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:58:54,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:58:54,208 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 18:58:54,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:58:54,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306125416] [2022-12-13 18:58:54,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:58:54,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:58:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:58:54,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:58:54,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:58:54,273 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:58:54,273 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:58:54,275 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:58:54,277 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:58:54,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:58:54,281 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 18:58:54,285 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:58:54,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:58:54 BoogieIcfgContainer [2022-12-13 18:58:54,310 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:58:54,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:58:54,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:58:54,311 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:58:54,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:58:53" (3/4) ... [2022-12-13 18:58:54,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:58:54,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:58:54,314 INFO L158 Benchmark]: Toolchain (without parser) took 1970.54ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 125.8MB in the beginning and 134.3MB in the end (delta: -8.5MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2022-12-13 18:58:54,314 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:58:54,315 INFO L158 Benchmark]: CACSL2BoogieTranslator took 817.26ms. Allocated memory is still 159.4MB. Free memory was 125.5MB in the beginning and 117.2MB in the end (delta: 8.3MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-12-13 18:58:54,315 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.90ms. Allocated memory is still 159.4MB. Free memory was 117.2MB in the beginning and 114.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:58:54,316 INFO L158 Benchmark]: Boogie Preprocessor took 17.60ms. Allocated memory is still 159.4MB. Free memory was 114.3MB in the beginning and 112.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:58:54,316 INFO L158 Benchmark]: RCFGBuilder took 261.96ms. Allocated memory is still 159.4MB. Free memory was 112.9MB in the beginning and 99.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 18:58:54,316 INFO L158 Benchmark]: TraceAbstraction took 826.68ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 99.0MB in the beginning and 134.4MB in the end (delta: -35.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:58:54,317 INFO L158 Benchmark]: Witness Printer took 3.39ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 134.3MB in the end (delta: 81.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:58:54,319 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 817.26ms. Allocated memory is still 159.4MB. Free memory was 125.5MB in the beginning and 117.2MB in the end (delta: 8.3MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.90ms. Allocated memory is still 159.4MB. Free memory was 117.2MB in the beginning and 114.3MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.60ms. Allocated memory is still 159.4MB. Free memory was 114.3MB in the beginning and 112.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 261.96ms. Allocated memory is still 159.4MB. Free memory was 112.9MB in the beginning and 99.7MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 826.68ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 99.0MB in the beginning and 134.4MB in the end (delta: -35.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.39ms. Allocated memory is still 192.9MB. Free memory was 134.4MB in the beginning and 134.3MB in the end (delta: 81.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=2147483655, argc=2147483655, argv={2147483651:2147483656}, argv={2147483651:2147483656}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] dataArray[2] = data [L1566] CALL CWE190_Integer_Overflow__int_fgets_add_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] data + 1 VAL [data=2147483647, dataArray={6:0}, dataArray={6:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 65 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 21 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:58:54,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8 --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 8ce8a49ea312f5be0225d8073f8ea160066b763122d2873f0570cf84c2bb0e57 --- 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-2329fc7 [2022-12-13 18:58:55,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:58:55,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:58:55,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:58:55,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:58:55,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:58:55,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:58:55,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:58:55,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:58:55,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:58:55,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:58:55,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:58:55,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:58:55,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:58:55,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:58:55,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:58:55,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:58:55,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:58:55,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:58:55,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:58:55,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:58:55,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:58:55,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:58:55,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:58:55,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:58:55,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:58:55,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:58:55,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:58:55,966 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:58:55,967 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:58:55,967 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:58:55,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:58:55,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:58:55,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:58:55,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:58:55,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:58:55,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:58:55,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:58:55,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:58:55,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:58:55,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:58:55,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 18:58:55,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:58:55,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:58:55,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:58:55,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:58:55,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:58:55,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:58:55,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:58:55,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:58:55,998 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:58:55,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:58:55,998 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:58:55,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:58:55,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:58:55,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:58:55,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:58:55,999 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:58:55,999 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 18:58:55,999 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:58:55,999 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 18:58:55,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:58:55,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:58:56,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:58:56,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:58:56,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:58:56,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:58:56,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:58:56,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:58:56,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:58:56,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:58:56,001 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 18:58:56,001 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 18:58:56,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:58:56,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:58:56,001 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:58:56,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:58:56,002 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 18:58:56,002 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:58:56,002 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_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ce8a49ea312f5be0225d8073f8ea160066b763122d2873f0570cf84c2bb0e57 [2022-12-13 18:58:56,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:58:56,238 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:58:56,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:58:56,241 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:58:56,241 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:58:56,242 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_66_bad.i [2022-12-13 18:58:58,867 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:58:59,127 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:58:59,127 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_66_bad.i [2022-12-13 18:58:59,146 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/data/cafc9fc90/fb9afdd670294f7b8909f33b59864b51/FLAGbb9030e37 [2022-12-13 18:58:59,157 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/data/cafc9fc90/fb9afdd670294f7b8909f33b59864b51 [2022-12-13 18:58:59,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:58:59,160 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:58:59,160 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:58:59,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:58:59,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:58:59,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:58:59,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791344d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59, skipping insertion in model container [2022-12-13 18:58:59,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:58:59,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:58:59,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:58:59,439 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:58:59,754 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:58:59,758 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:58:59,759 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:58:59,761 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:58:59,762 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:58:59,780 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:58:59,783 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:58:59,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:58:59,798 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:58:59,815 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:58:59,858 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:58:59,859 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:58:59,860 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:58:59,862 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:58:59,862 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:58:59,866 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:58:59,868 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:58:59,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:58:59,989 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:58:59,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59 WrapperNode [2022-12-13 18:58:59,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:58:59,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:58:59,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:58:59,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:58:59,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,012 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,027 INFO L138 Inliner]: procedures = 506, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-13 18:59:00,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:59:00,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:59:00,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:59:00,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:59:00,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,037 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:59:00,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:59:00,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:59:00,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:59:00,055 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (1/1) ... [2022-12-13 18:59:00,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:59:00,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:59:00,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:59:00,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:59:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:59:00,106 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:59:00,106 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:59:00,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:59:00,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 18:59:00,228 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:59:00,229 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:59:00,347 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:59:00,353 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:59:00,353 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:59:00,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:59:00 BoogieIcfgContainer [2022-12-13 18:59:00,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:59:00,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:59:00,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:59:00,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:59:00,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:58:59" (1/3) ... [2022-12-13 18:59:00,359 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd6a89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:59:00, skipping insertion in model container [2022-12-13 18:59:00,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:58:59" (2/3) ... [2022-12-13 18:59:00,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd6a89a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:59:00, skipping insertion in model container [2022-12-13 18:59:00,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:59:00" (3/3) ... [2022-12-13 18:59:00,361 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_66_bad.i [2022-12-13 18:59:00,375 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:59:00,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:59:00,410 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:59:00,414 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;@3e34a690, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:59:00,415 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:59:00,418 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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) [2022-12-13 18:59:00,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 18:59:00,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:59:00,424 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:59:00,425 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:59:00,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:59:00,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 18:59:00,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:59:00,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290973045] [2022-12-13 18:59:00,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:59:00,440 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 [2022-12-13 18:59:00,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:59:00,441 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 18:59:00,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:59:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:59:00,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 18:59:00,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:59:00,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:59:00,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:59:00,588 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 18:59:00,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [290973045] [2022-12-13 18:59:00,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [290973045] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:59:00,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:59:00,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 18:59:00,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268888482] [2022-12-13 18:59:00,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:59:00,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:59:00,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 18:59:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:59:00,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:59:00,617 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:59:00,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:59:00,631 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 18:59:00,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:59:00,632 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 18:59:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:59:00,637 INFO L225 Difference]: With dead ends: 23 [2022-12-13 18:59:00,637 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 18:59:00,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:59:00,641 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:59:00,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:59:00,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 18:59:00,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 18:59:00,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:59:00,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 18:59:00,667 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 18:59:00,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:59:00,668 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 18:59:00,668 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 18:59:00,668 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 18:59:00,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:59:00,669 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:59:00,669 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:59:00,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:59:00,870 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:59:00,870 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:59:00,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:59:00,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 18:59:00,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:59:00,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282612265] [2022-12-13 18:59:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:59:00,872 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 [2022-12-13 18:59:00,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:59:00,872 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 18:59:00,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 18:59:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:59:01,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:59:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:59:01,086 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 18:59:01,086 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:59:01,088 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:59:01,089 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:59:01,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 18:59:01,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 18:59:01,300 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 18:59:01,310 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:59:01,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:59:01 BoogieIcfgContainer [2022-12-13 18:59:01,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:59:01,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:59:01,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:59:01,371 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:59:01,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:59:00" (3/4) ... [2022-12-13 18:59:01,375 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:59:01,375 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:59:01,376 INFO L158 Benchmark]: Toolchain (without parser) took 2216.16ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 75.1MB in the end (delta: 8.7MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2022-12-13 18:59:01,377 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:59:01,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.47ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 49.0MB in the end (delta: 34.8MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2022-12-13 18:59:01,378 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.98ms. Allocated memory is still 109.1MB. Free memory was 49.0MB in the beginning and 46.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:59:01,379 INFO L158 Benchmark]: Boogie Preprocessor took 26.45ms. Allocated memory is still 109.1MB. Free memory was 46.3MB in the beginning and 85.2MB in the end (delta: -39.0MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-12-13 18:59:01,380 INFO L158 Benchmark]: RCFGBuilder took 300.31ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 69.9MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 18:59:01,380 INFO L158 Benchmark]: TraceAbstraction took 1013.62ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 75.8MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:59:01,381 INFO L158 Benchmark]: Witness Printer took 4.70ms. Allocated memory is still 109.1MB. Free memory was 75.8MB in the beginning and 75.1MB in the end (delta: 721.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:59:01,384 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 54.5MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 829.47ms. Allocated memory is still 109.1MB. Free memory was 83.8MB in the beginning and 49.0MB in the end (delta: 34.8MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.98ms. Allocated memory is still 109.1MB. Free memory was 49.0MB in the beginning and 46.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.45ms. Allocated memory is still 109.1MB. Free memory was 46.3MB in the beginning and 85.2MB in the end (delta: -39.0MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * RCFGBuilder took 300.31ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 69.9MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1013.62ms. Allocated memory is still 109.1MB. Free memory was 69.3MB in the beginning and 75.8MB in the end (delta: -6.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.70ms. Allocated memory is still 109.1MB. Free memory was 75.8MB in the beginning and 75.1MB in the end (delta: 721.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. 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] [L1571] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, 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] [L1572] CALL CWE190_Integer_Overflow__int_fgets_add_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] dataArray[2] = data [L1566] CALL CWE190_Integer_Overflow__int_fgets_add_66b_badSink(dataArray) [L1578] EXPR dataArray[2] [L1578] int data = dataArray[2]; [L1580] data + 1 VAL [data=2147483647, dataArray={7:0}, dataArray={7:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 87 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:59:01,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_620fc0de-a910-42a2-a8d1-1a336989227a/bin/uautomizer-uyxdKDjOR8/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample