./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_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_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 e7a4f613bebce266be5a00189eb01510ac8205ea75acd3e5de1ab70f87569f78 --- 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 16:10:03,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:10:03,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:10:03,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:10:03,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:10:03,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:10:03,074 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:10:03,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:10:03,078 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:10:03,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:10:03,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:10:03,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:10:03,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:10:03,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:10:03,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:10:03,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:10:03,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:10:03,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:10:03,087 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:10:03,089 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:10:03,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:10:03,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:10:03,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:10:03,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:10:03,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:10:03,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:10:03,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:10:03,099 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:10:03,100 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:10:03,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:10:03,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:10:03,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:10:03,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:10:03,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:10:03,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:10:03,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:10:03,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:10:03,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:10:03,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:10:03,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:10:03,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:10:03,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 16:10:03,130 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:10:03,130 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:10:03,130 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:10:03,130 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:10:03,131 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:10:03,131 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:10:03,132 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:10:03,132 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:10:03,132 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:10:03,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:10:03,132 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:10:03,133 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:10:03,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:10:03,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:10:03,133 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:10:03,133 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:10:03,133 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:10:03,134 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:10:03,134 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:10:03,134 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:10:03,134 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:10:03,134 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:10:03,134 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:10:03,134 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:10:03,134 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:10:03,135 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:10:03,135 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:10:03,135 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:10:03,135 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:10:03,135 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:10:03,135 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:10:03,135 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:10:03,136 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:10:03,136 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:10:03,136 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_62afe52d-1473-479b-8616-bf3cb3c62cd1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a4f613bebce266be5a00189eb01510ac8205ea75acd3e5de1ab70f87569f78 [2022-12-13 16:10:03,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:10:03,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:10:03,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:10:03,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:10:03,336 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:10:03,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-12-13 16:10:05,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:10:06,124 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:10:06,125 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-12-13 16:10:06,142 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/data/ba3078a1c/dc54ea8a068f43d39495d543bbc21e94/FLAG669512db5 [2022-12-13 16:10:06,451 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/data/ba3078a1c/dc54ea8a068f43d39495d543bbc21e94 [2022-12-13 16:10:06,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:10:06,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:10:06,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:10:06,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:10:06,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:10:06,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:10:06" (1/1) ... [2022-12-13 16:10:06,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e797f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:06, skipping insertion in model container [2022-12-13 16:10:06,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:10:06" (1/1) ... [2022-12-13 16:10:06,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:10:06,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:10:06,747 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:10:07,053 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:10:07,058 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:10:07,060 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:10:07,062 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:10:07,063 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:10:07,082 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:10:07,085 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:10:07,092 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:10:07,101 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:10:07,119 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:10:07,174 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:10:07,175 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:10:07,176 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:10:07,177 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:10:07,178 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:10:07,181 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:10:07,182 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:10:07,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:10:07,259 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:10:07,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07 WrapperNode [2022-12-13 16:10:07,260 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:10:07,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:10:07,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:10:07,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:10:07,266 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,295 INFO L138 Inliner]: procedures = 504, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 62 [2022-12-13 16:10:07,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:10:07,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:10:07,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:10:07,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:10:07,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,309 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,313 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:10:07,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:10:07,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:10:07,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:10:07,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (1/1) ... [2022-12-13 16:10:07,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:10:07,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:10:07,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:10:07,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:10:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 16:10:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:10:07,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:10:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:10:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 16:10:07,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:10:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:10:07,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:10:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:10:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:10:07,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:10:07,487 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:10:07,489 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:10:07,589 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:10:07,593 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:10:07,594 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:10:07,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:07 BoogieIcfgContainer [2022-12-13 16:10:07,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:10:07,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:10:07,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:10:07,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:10:07,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:10:06" (1/3) ... [2022-12-13 16:10:07,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5328dd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:10:07, skipping insertion in model container [2022-12-13 16:10:07,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:07" (2/3) ... [2022-12-13 16:10:07,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5328dd6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:10:07, skipping insertion in model container [2022-12-13 16:10:07,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:07" (3/3) ... [2022-12-13 16:10:07,602 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-12-13 16:10:07,616 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:10:07,616 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:10:07,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:10:07,655 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;@7948799a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:10:07,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:10:07,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 16:10:07,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:10:07,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:07,664 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:07,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:10:07,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:07,669 INFO L85 PathProgramCache]: Analyzing trace with hash 972561618, now seen corresponding path program 1 times [2022-12-13 16:10:07,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:07,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741531548] [2022-12-13 16:10:07,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:07,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:07,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:07,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:10:07,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:07,961 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 16:10:07,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:07,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741531548] [2022-12-13 16:10:07,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741531548] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:07,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:07,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:10:07,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611686966] [2022-12-13 16:10:07,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:07,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:10:07,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:10:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:10:07,990 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 16:10:08,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:10:08,024 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-13 16:10:08,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:10:08,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 16:10:08,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:10:08,030 INFO L225 Difference]: With dead ends: 26 [2022-12-13 16:10:08,030 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 16:10:08,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:08,035 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:10:08,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 58 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:10:08,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 16:10:08,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 16:10:08,059 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 16:10:08,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 16:10:08,061 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 16:10:08,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:10:08,062 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 16:10:08,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 16:10:08,063 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 16:10:08,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:10:08,064 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:08,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:08,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:10:08,064 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:10:08,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:08,065 INFO L85 PathProgramCache]: Analyzing trace with hash 84639140, now seen corresponding path program 1 times [2022-12-13 16:10:08,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:08,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550096280] [2022-12-13 16:10:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:08,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:10:08,086 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:10:08,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:10:08,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:10:08,111 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:10:08,113 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:10:08,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:10:08,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:10:08,117 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:10:08,119 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:10:08,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:10:08 BoogieIcfgContainer [2022-12-13 16:10:08,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:10:08,136 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:10:08,136 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:10:08,137 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:10:08,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:07" (3/4) ... [2022-12-13 16:10:08,139 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:10:08,139 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:10:08,140 INFO L158 Benchmark]: Toolchain (without parser) took 1681.42ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 77.1MB in the beginning and 60.8MB in the end (delta: 16.3MB). Peak memory consumption was 48.9MB. Max. memory is 16.1GB. [2022-12-13 16:10:08,140 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:10:08,140 INFO L158 Benchmark]: CACSL2BoogieTranslator took 799.40ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 76.8MB in the beginning and 77.2MB in the end (delta: -411.5kB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-12-13 16:10:08,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.77ms. Allocated memory is still 144.7MB. Free memory was 77.2MB in the beginning and 73.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:10:08,141 INFO L158 Benchmark]: Boogie Preprocessor took 16.89ms. Allocated memory is still 144.7MB. Free memory was 73.7MB in the beginning and 72.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:10:08,141 INFO L158 Benchmark]: RCFGBuilder took 282.34ms. Allocated memory is still 144.7MB. Free memory was 72.3MB in the beginning and 105.7MB in the end (delta: -33.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 16:10:08,142 INFO L158 Benchmark]: TraceAbstraction took 538.97ms. Allocated memory is still 144.7MB. Free memory was 104.8MB in the beginning and 60.8MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-12-13 16:10:08,142 INFO L158 Benchmark]: Witness Printer took 2.87ms. Allocated memory is still 144.7MB. Free memory is still 60.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:10:08,144 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 115.3MB. Free memory is still 90.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 799.40ms. Allocated memory was 115.3MB in the beginning and 144.7MB in the end (delta: 29.4MB). Free memory was 76.8MB in the beginning and 77.2MB in the end (delta: -411.5kB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.77ms. Allocated memory is still 144.7MB. Free memory was 77.2MB in the beginning and 73.7MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.89ms. Allocated memory is still 144.7MB. Free memory was 73.7MB in the beginning and 72.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 282.34ms. Allocated memory is still 144.7MB. Free memory was 72.3MB in the beginning and 105.7MB in the end (delta: -33.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 538.97ms. Allocated memory is still 144.7MB. Free memory was 104.8MB in the beginning and 60.8MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 2.87ms. Allocated memory is still 144.7MB. Free memory is still 60.8MB. There was no memory consumed. 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [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) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483652, argc=2147483652, argv={2147483649:2147483654}, argv={2147483649:2147483654}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_54b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_postinc_54c_badSink(data) [L1582] CALL CWE190_Integer_Overflow__int_fgets_postinc_54d_badSink(data) [L1587] CALL CWE190_Integer_Overflow__int_fgets_postinc_54e_badSink(data) [L1592] data++ VAL [\old(data)=2147483647, data=2147483647, data++=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1592]: 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, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 34 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 24 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 16:10:08,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 e7a4f613bebce266be5a00189eb01510ac8205ea75acd3e5de1ab70f87569f78 --- 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 16:10:09,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:10:09,910 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:10:09,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:10:09,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:10:09,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:10:09,934 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:10:09,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:10:09,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:10:09,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:10:09,940 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:10:09,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:10:09,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:10:09,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:10:09,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:10:09,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:10:09,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:10:09,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:10:09,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:10:09,950 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:10:09,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:10:09,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:10:09,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:10:09,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:10:09,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:10:09,959 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:10:09,959 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:10:09,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:10:09,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:10:09,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:10:09,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:10:09,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:10:09,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:10:09,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:10:09,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:10:09,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:10:09,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:10:09,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:10:09,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:10:09,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:10:09,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:10:09,968 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 16:10:09,995 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:10:09,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:10:09,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:10:09,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:10:09,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:10:09,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:10:09,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:10:09,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:10:09,997 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:10:09,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:10:09,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:10:09,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:10:09,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:10:09,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:10:09,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:10:09,998 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:10:09,998 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:10:09,998 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:10:09,998 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:10:09,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:10:09,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:10:09,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:10:09,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:10:09,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:10:09,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:10:09,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:10:10,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:10:10,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:10:10,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:10:10,000 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:10:10,000 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:10:10,000 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:10:10,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:10:10,000 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:10:10,001 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:10:10,001 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:10:10,001 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:10:10,001 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_62afe52d-1473-479b-8616-bf3cb3c62cd1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e7a4f613bebce266be5a00189eb01510ac8205ea75acd3e5de1ab70f87569f78 [2022-12-13 16:10:10,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:10:10,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:10:10,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:10:10,246 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:10:10,246 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:10:10,247 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-12-13 16:10:12,783 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:10:13,082 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:10:13,082 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-12-13 16:10:13,099 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/data/1d2654662/b6ebf696739e4b03924f139042c47340/FLAGadc747a4c [2022-12-13 16:10:13,113 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/data/1d2654662/b6ebf696739e4b03924f139042c47340 [2022-12-13 16:10:13,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:10:13,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:10:13,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:10:13,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:10:13,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:10:13,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:13,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@228724e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13, skipping insertion in model container [2022-12-13 16:10:13,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:13,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:10:13,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:10:13,448 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:10:13,770 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:10:13,774 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:10:13,776 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:10:13,777 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:10:13,778 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:10:13,791 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:10:13,793 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:10:13,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:10:13,815 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:10:13,832 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:10:13,874 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:10:13,875 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:10:13,876 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:10:13,879 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:10:13,879 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:10:13,883 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:10:13,885 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:10:13,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:10:13,985 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:10:13,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13 WrapperNode [2022-12-13 16:10:13,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:10:13,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:10:13,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:10:13,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:10:13,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,023 INFO L138 Inliner]: procedures = 509, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 61 [2022-12-13 16:10:14,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:10:14,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:10:14,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:10:14,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:10:14,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,041 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:10:14,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:10:14,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:10:14,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:10:14,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (1/1) ... [2022-12-13 16:10:14,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:10:14,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:10:14,069 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:10:14,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:10:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 16:10:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:10:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:10:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:10:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:10:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:10:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:10:14,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:10:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:10:14,095 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:10:14,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 16:10:14,235 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:10:14,236 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:10:14,355 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:10:14,360 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:10:14,360 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:10:14,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:14 BoogieIcfgContainer [2022-12-13 16:10:14,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:10:14,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:10:14,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:10:14,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:10:14,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:10:13" (1/3) ... [2022-12-13 16:10:14,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ce0156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:10:14, skipping insertion in model container [2022-12-13 16:10:14,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:13" (2/3) ... [2022-12-13 16:10:14,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ce0156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:10:14, skipping insertion in model container [2022-12-13 16:10:14,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:14" (3/3) ... [2022-12-13 16:10:14,368 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_54_bad.i [2022-12-13 16:10:14,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:10:14,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:10:14,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:10:14,423 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;@27232ed1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:10:14,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:10:14,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 16:10:14,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:10:14,432 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:14,433 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:14,433 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:10:14,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:14,437 INFO L85 PathProgramCache]: Analyzing trace with hash 972561618, now seen corresponding path program 1 times [2022-12-13 16:10:14,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:10:14,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [268560789] [2022-12-13 16:10:14,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:14,449 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 16:10:14,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:10:14,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 16:10:14,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 16:10:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:14,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:10:14,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:10:14,579 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 16:10:14,579 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:10:14,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:10:14,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [268560789] [2022-12-13 16:10:14,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [268560789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:14,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:14,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:10:14,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258136258] [2022-12-13 16:10:14,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:14,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:10:14,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:10:14,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:10:14,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:10:14,609 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 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 16:10:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:10:14,622 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-13 16:10:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:10:14,624 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 16:10:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:10:14,629 INFO L225 Difference]: With dead ends: 26 [2022-12-13 16:10:14,629 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 16:10:14,631 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 16:10:14,633 INFO L413 NwaCegarLoop]: 28 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, 28 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 16:10:14,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:10:14,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 16:10:14,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 16:10:14,658 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 16:10:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 16:10:14,660 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 16:10:14,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:10:14,661 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 16:10:14,661 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 16:10:14,662 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 16:10:14,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:10:14,663 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:14,663 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:14,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 16:10:14,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 16:10:14,865 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:10:14,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:14,867 INFO L85 PathProgramCache]: Analyzing trace with hash 84639140, now seen corresponding path program 1 times [2022-12-13 16:10:14,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:10:14,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480321829] [2022-12-13 16:10:14,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:14,870 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 16:10:14,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:10:14,873 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 16:10:14,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 16:10:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:10:15,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:10:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:10:15,150 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 16:10:15,150 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:10:15,152 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:10:15,154 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:10:15,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 16:10:15,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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 16:10:15,364 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:10:15,374 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:10:15,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:10:15 BoogieIcfgContainer [2022-12-13 16:10:15,436 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:10:15,438 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:10:15,438 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:10:15,438 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:10:15,439 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:14" (3/4) ... [2022-12-13 16:10:15,447 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:10:15,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:10:15,450 INFO L158 Benchmark]: Toolchain (without parser) took 2331.18ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.4MB in the beginning and 23.0MB in the end (delta: 8.5MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2022-12-13 16:10:15,451 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 46.1MB. Free memory was 25.2MB in the beginning and 25.2MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:10:15,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 866.80ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 40.2MB in the end (delta: -9.1MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2022-12-13 16:10:15,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.55ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 37.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:10:15,455 INFO L158 Benchmark]: Boogie Preprocessor took 20.60ms. Allocated memory is still 69.2MB. Free memory was 37.0MB in the beginning and 35.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:10:15,456 INFO L158 Benchmark]: RCFGBuilder took 316.96ms. Allocated memory is still 69.2MB. Free memory was 34.7MB in the beginning and 35.5MB in the end (delta: -799.9kB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-12-13 16:10:15,457 INFO L158 Benchmark]: TraceAbstraction took 1073.38ms. Allocated memory is still 69.2MB. Free memory was 34.7MB in the beginning and 23.3MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. [2022-12-13 16:10:15,457 INFO L158 Benchmark]: Witness Printer took 10.08ms. Allocated memory is still 69.2MB. Free memory is still 23.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:10:15,462 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 46.1MB. Free memory was 25.2MB in the beginning and 25.2MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 866.80ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 40.2MB in the end (delta: -9.1MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.55ms. Allocated memory is still 69.2MB. Free memory was 40.2MB in the beginning and 37.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.60ms. Allocated memory is still 69.2MB. Free memory was 37.0MB in the beginning and 35.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 316.96ms. Allocated memory is still 69.2MB. Free memory was 34.7MB in the beginning and 35.5MB in the end (delta: -799.9kB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1073.38ms. Allocated memory is still 69.2MB. Free memory was 34.7MB in the beginning and 23.3MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 16.1GB. * Witness Printer took 10.08ms. Allocated memory is still 69.2MB. Free memory is still 23.0MB. There was no memory consumed. 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [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) [L1569] 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] [L1570] CALL CWE190_Integer_Overflow__int_fgets_postinc_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_postinc_54b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_postinc_54c_badSink(data) [L1582] CALL CWE190_Integer_Overflow__int_fgets_postinc_54d_badSink(data) [L1587] CALL CWE190_Integer_Overflow__int_fgets_postinc_54e_badSink(data) [L1592] data++ VAL [\old(data)=2147483647, data=2147483647, data++=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1592]: 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, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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, 28 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, 28 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=26occurred 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, 75 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 16:10:15,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62afe52d-1473-479b-8616-bf3cb3c62cd1/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