./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_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_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 --- 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 11:51:37,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:51:37,989 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:51:38,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:51:38,003 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:51:38,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:51:38,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:51:38,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:51:38,006 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:51:38,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:51:38,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:51:38,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:51:38,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:51:38,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:51:38,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:51:38,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:51:38,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:51:38,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:51:38,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:51:38,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:51:38,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:51:38,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:51:38,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:51:38,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:51:38,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:51:38,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:51:38,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:51:38,021 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:51:38,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:51:38,022 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:51:38,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:51:38,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:51:38,024 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:51:38,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:51:38,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:51:38,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:51:38,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:51:38,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:51:38,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:51:38,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:51:38,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:51:38,028 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 11:51:38,043 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:51:38,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:51:38,043 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:51:38,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:51:38,044 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:51:38,044 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:51:38,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:51:38,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:51:38,044 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:51:38,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:51:38,045 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:51:38,045 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:51:38,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:51:38,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:51:38,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:51:38,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:51:38,046 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:51:38,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:51:38,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:51:38,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:51:38,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:51:38,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:51:38,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:51:38,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:51:38,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:51:38,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:51:38,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:51:38,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:51:38,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:51:38,047 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:51:38,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:51:38,047 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:51:38,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:51:38,048 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:51:38,048 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_004c1e67-4e73-448c-8520-69d6d65d3aa6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 [2022-12-13 11:51:38,225 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:51:38,241 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:51:38,243 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:51:38,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:51:38,244 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:51:38,245 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2022-12-13 11:51:40,815 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:51:41,041 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:51:41,041 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2022-12-13 11:51:41,054 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/data/494598364/2aa58c29cb0346f7885b99668f38fd58/FLAG7eb4eed71 [2022-12-13 11:51:41,407 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/data/494598364/2aa58c29cb0346f7885b99668f38fd58 [2022-12-13 11:51:41,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:51:41,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:51:41,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:51:41,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:51:41,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:51:41,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:51:41" (1/1) ... [2022-12-13 11:51:41,436 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428bc3d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:41, skipping insertion in model container [2022-12-13 11:51:41,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:51:41" (1/1) ... [2022-12-13 11:51:41,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:51:41,534 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:51:41,793 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:51:42,153 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:51:42,157 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:51:42,159 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:51:42,160 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:51:42,161 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:51:42,176 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:51:42,181 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:51:42,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:51:42,189 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:51:42,203 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:51:42,235 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:51:42,236 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:51:42,237 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:51:42,239 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:51:42,240 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:51:42,243 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:51:42,244 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:51:42,245 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:51:42,337 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:51:42,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42 WrapperNode [2022-12-13 11:51:42,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:51:42,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:51:42,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:51:42,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:51:42,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,383 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-12-13 11:51:42,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:51:42,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:51:42,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:51:42,384 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:51:42,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,403 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:51:42,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:51:42,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:51:42,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:51:42,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (1/1) ... [2022-12-13 11:51:42,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:51:42,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:51:42,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:51:42,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:51:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:51:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:51:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:51:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:51:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 11:51:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:51:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:51:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:51:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:51:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:51:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:51:42,572 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:51:42,574 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:51:42,661 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:51:42,666 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:51:42,667 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:51:42,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:51:42 BoogieIcfgContainer [2022-12-13 11:51:42,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:51:42,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:51:42,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:51:42,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:51:42,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:51:41" (1/3) ... [2022-12-13 11:51:42,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e56e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:51:42, skipping insertion in model container [2022-12-13 11:51:42,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:42" (2/3) ... [2022-12-13 11:51:42,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e56e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:51:42, skipping insertion in model container [2022-12-13 11:51:42,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:51:42" (3/3) ... [2022-12-13 11:51:42,675 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2022-12-13 11:51:42,690 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:51:42,690 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:51:42,724 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:51:42,728 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;@24044b1e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:51:42,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:51:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 11:51:42,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 11:51:42,737 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:51:42,737 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:51:42,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:51:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:51:42,741 INFO L85 PathProgramCache]: Analyzing trace with hash 924028237, now seen corresponding path program 1 times [2022-12-13 11:51:42,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:51:42,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630613533] [2022-12-13 11:51:42,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:51:42,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:51:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:51:42,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:51:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:51:42,940 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 11:51:42,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:51:42,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630613533] [2022-12-13 11:51:42,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630613533] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:51:42,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:51:42,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:51:42,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468204483] [2022-12-13 11:51:42,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:51:42,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:51:42,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:51:42,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:51:42,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:51:42,968 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 11:51:42,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:51:42,990 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 11:51:42,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:51:42,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-12-13 11:51:42,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:51:42,996 INFO L225 Difference]: With dead ends: 23 [2022-12-13 11:51:42,996 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 11:51:42,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:51:43,007 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:51:43,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:51:43,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 11:51:43,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 11:51:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 11:51:43,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 11:51:43,033 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 11:51:43,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:51:43,034 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 11:51:43,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 11:51:43,034 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 11:51:43,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 11:51:43,035 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:51:43,035 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:51:43,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:51:43,035 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:51:43,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:51:43,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1419895668, now seen corresponding path program 1 times [2022-12-13 11:51:43,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:51:43,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57465362] [2022-12-13 11:51:43,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:51:43,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:51:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:51:43,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:51:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:51:43,084 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:51:43,084 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:51:43,086 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:51:43,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:51:43,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:51:43,091 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 11:51:43,093 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:51:43,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:51:43 BoogieIcfgContainer [2022-12-13 11:51:43,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:51:43,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:51:43,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:51:43,110 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:51:43,110 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:51:42" (3/4) ... [2022-12-13 11:51:43,113 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:51:43,113 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:51:43,113 INFO L158 Benchmark]: Toolchain (without parser) took 1696.61ms. Allocated memory is still 151.0MB. Free memory was 113.4MB in the beginning and 107.2MB in the end (delta: 6.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-12-13 11:51:43,114 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory was 79.6MB in the beginning and 79.5MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:51:43,114 INFO L158 Benchmark]: CACSL2BoogieTranslator took 916.76ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 102.1MB in the end (delta: 10.8MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-12-13 11:51:43,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.52ms. Allocated memory is still 151.0MB. Free memory was 102.1MB in the beginning and 99.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:51:43,115 INFO L158 Benchmark]: Boogie Preprocessor took 21.31ms. Allocated memory is still 151.0MB. Free memory was 99.2MB in the beginning and 97.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:51:43,115 INFO L158 Benchmark]: RCFGBuilder took 262.60ms. Allocated memory is still 151.0MB. Free memory was 97.9MB in the beginning and 85.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:51:43,115 INFO L158 Benchmark]: TraceAbstraction took 438.89ms. Allocated memory is still 151.0MB. Free memory was 84.6MB in the beginning and 107.2MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:51:43,115 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 151.0MB. Free memory is still 107.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:51:43,117 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory was 79.6MB in the beginning and 79.5MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 916.76ms. Allocated memory is still 151.0MB. Free memory was 112.9MB in the beginning and 102.1MB in the end (delta: 10.8MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.52ms. Allocated memory is still 151.0MB. Free memory was 102.1MB in the beginning and 99.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.31ms. Allocated memory is still 151.0MB. Free memory was 99.2MB in the beginning and 97.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 262.60ms. Allocated memory is still 151.0MB. Free memory was 97.9MB in the beginning and 85.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 438.89ms. Allocated memory is still 151.0MB. Free memory was 84.6MB in the beginning and 107.2MB in the end (delta: -22.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 151.0MB. Free memory is still 107.2MB. 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] 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) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=2147483653, argc=2147483653, argv={2147483651:2147483654}, argv={2147483651:2147483654}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_18_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [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] [L1568] ++data VAL [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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 22 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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 11:51:43,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 --- 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 11:51:44,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:51:44,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:51:44,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:51:44,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:51:44,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:51:44,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:51:44,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:51:44,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:51:44,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:51:44,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:51:44,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:51:44,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:51:44,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:51:44,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:51:44,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:51:44,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:51:44,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:51:44,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:51:44,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:51:44,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:51:44,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:51:44,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:51:44,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:51:44,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:51:44,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:51:44,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:51:44,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:51:44,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:51:44,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:51:44,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:51:44,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:51:44,895 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:51:44,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:51:44,896 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:51:44,897 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:51:44,897 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:51:44,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:51:44,898 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:51:44,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:51:44,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:51:44,900 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 11:51:44,921 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:51:44,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:51:44,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:51:44,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:51:44,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:51:44,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:51:44,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:51:44,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:51:44,924 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:51:44,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:51:44,924 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:51:44,924 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:51:44,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:51:44,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:51:44,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:51:44,925 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:51:44,925 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:51:44,925 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:51:44,925 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:51:44,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:51:44,925 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:51:44,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:51:44,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:51:44,926 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:51:44,926 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:51:44,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:51:44,926 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:51:44,927 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:51:44,927 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:51:44,927 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:51:44,927 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:51:44,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:51:44,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:51:44,927 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:51:44,928 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:51:44,928 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:51:44,928 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:51:44,928 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_004c1e67-4e73-448c-8520-69d6d65d3aa6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 398e601a7b05490ae23a95dbeb705914d8058aa3c83525521928baa5b8170348 [2022-12-13 11:51:45,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:51:45,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:51:45,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:51:45,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:51:45,178 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:51:45,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2022-12-13 11:51:47,726 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:51:47,987 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:51:47,988 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2022-12-13 11:51:48,004 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/data/59123845c/f9e90e7826ae49248e7d3e54802c08ed/FLAG8c86fbe3c [2022-12-13 11:51:48,275 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/data/59123845c/f9e90e7826ae49248e7d3e54802c08ed [2022-12-13 11:51:48,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:51:48,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:51:48,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:51:48,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:51:48,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:51:48,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:51:48" (1/1) ... [2022-12-13 11:51:48,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4766054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:48, skipping insertion in model container [2022-12-13 11:51:48,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:51:48" (1/1) ... [2022-12-13 11:51:48,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:51:48,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:51:48,580 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:51:48,883 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:51:48,887 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:51:48,888 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:51:48,890 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:51:48,890 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:51:48,903 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:51:48,907 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:51:48,908 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:51:48,918 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:51:48,931 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:51:48,963 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:51:48,964 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:51:48,965 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:51:48,966 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:51:48,967 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:51:48,969 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:51:48,971 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:51:48,971 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:51:49,103 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:51:49,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49 WrapperNode [2022-12-13 11:51:49,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:51:49,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:51:49,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:51:49,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:51:49,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,143 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-12-13 11:51:49,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:51:49,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:51:49,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:51:49,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:51:49,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,165 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:51:49,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:51:49,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:51:49,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:51:49,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (1/1) ... [2022-12-13 11:51:49,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:51:49,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:51:49,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:51:49,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:51:49,236 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:51:49,236 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:51:49,236 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:51:49,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:51:49,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:51:49,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:51:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:51:49,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:51:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:51:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:51:49,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 11:51:49,353 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:51:49,354 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:51:49,466 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:51:49,470 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:51:49,470 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:51:49,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:51:49 BoogieIcfgContainer [2022-12-13 11:51:49,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:51:49,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:51:49,473 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:51:49,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:51:49,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:51:48" (1/3) ... [2022-12-13 11:51:49,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170ca892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:51:49, skipping insertion in model container [2022-12-13 11:51:49,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:51:49" (2/3) ... [2022-12-13 11:51:49,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@170ca892 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:51:49, skipping insertion in model container [2022-12-13 11:51:49,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:51:49" (3/3) ... [2022-12-13 11:51:49,477 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_18_bad.i [2022-12-13 11:51:49,490 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:51:49,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:51:49,523 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:51:49,528 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;@2dad6494, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:51:49,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:51:49,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 11:51:49,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 11:51:49,537 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:51:49,537 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:51:49,537 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:51:49,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:51:49,541 INFO L85 PathProgramCache]: Analyzing trace with hash 924028237, now seen corresponding path program 1 times [2022-12-13 11:51:49,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:51:49,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1823736216] [2022-12-13 11:51:49,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:51:49,553 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 11:51:49,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:51:49,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 11:51:49,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 11:51:49,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:51:49,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 11:51:49,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:51:49,692 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 11:51:49,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:51:49,693 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:51:49,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1823736216] [2022-12-13 11:51:49,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1823736216] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:51:49,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:51:49,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:51:49,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343463229] [2022-12-13 11:51:49,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:51:49,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 11:51:49,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:51:49,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 11:51:49,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 11:51:49,721 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 11:51:49,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:51:49,734 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 11:51:49,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 11:51:49,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 12 [2022-12-13 11:51:49,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:51:49,740 INFO L225 Difference]: With dead ends: 23 [2022-12-13 11:51:49,740 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 11:51:49,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 11:51:49,744 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:51:49,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:51:49,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 11:51:49,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 11:51:49,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 11:51:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 11:51:49,773 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 11:51:49,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:51:49,774 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 11:51:49,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 11:51:49,775 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 11:51:49,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 11:51:49,776 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:51:49,776 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:51:49,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 11:51:49,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 11:51:49,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:51:49,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:51:49,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1419895668, now seen corresponding path program 1 times [2022-12-13 11:51:49,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:51:49,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [672857209] [2022-12-13 11:51:49,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:51:49,984 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 11:51:49,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:51:49,988 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 11:51:49,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 11:51:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:51:50,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:51:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:51:50,251 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 11:51:50,251 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:51:50,253 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:51:50,254 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:51:50,268 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 11:51:50,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 11:51:50,466 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 11:51:50,491 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:51:50,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:51:50 BoogieIcfgContainer [2022-12-13 11:51:50,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:51:50,543 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:51:50,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:51:50,543 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:51:50,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:51:49" (3/4) ... [2022-12-13 11:51:50,546 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:51:50,546 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:51:50,547 INFO L158 Benchmark]: Toolchain (without parser) took 2268.84ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 52.6MB in the beginning and 81.3MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:51:50,547 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory is still 36.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:51:50,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.76ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 42.2MB in the end (delta: 10.0MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-12-13 11:51:50,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.06ms. Allocated memory is still 92.3MB. Free memory was 42.2MB in the beginning and 39.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:51:50,548 INFO L158 Benchmark]: Boogie Preprocessor took 25.20ms. Allocated memory is still 92.3MB. Free memory was 39.4MB in the beginning and 37.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:51:50,549 INFO L158 Benchmark]: RCFGBuilder took 302.41ms. Allocated memory is still 92.3MB. Free memory was 36.9MB in the beginning and 53.5MB in the end (delta: -16.7MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-12-13 11:51:50,549 INFO L158 Benchmark]: TraceAbstraction took 1069.09ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 53.0MB in the beginning and 81.3MB in the end (delta: -28.3MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-12-13 11:51:50,550 INFO L158 Benchmark]: Witness Printer took 3.48ms. Allocated memory is still 111.1MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:51:50,551 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 58.7MB. Free memory is still 36.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 824.76ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 42.2MB in the end (delta: 10.0MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.06ms. Allocated memory is still 92.3MB. Free memory was 42.2MB in the beginning and 39.4MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.20ms. Allocated memory is still 92.3MB. Free memory was 39.4MB in the beginning and 37.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 302.41ms. Allocated memory is still 92.3MB. Free memory was 36.9MB in the beginning and 53.5MB in the end (delta: -16.7MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1069.09ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 53.0MB in the beginning and 81.3MB in the end (delta: -28.3MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. * Witness Printer took 3.48ms. Allocated memory is still 111.1MB. Free memory is still 81.3MB. 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] 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) [L1576] 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] [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_18_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [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] [L1568] ++data VAL [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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 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, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 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 11:51:50,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_004c1e67-4e73-448c-8520-69d6d65d3aa6/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample