./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_45_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_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0154aeb4546438fd959913f3ea1edb15628dae975b6748d0437c64955b16ea8a --- 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 [2022-12-14 15:00:31,001 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:00:31,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:00:31,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:00:31,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:00:31,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:00:31,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:00:31,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:00:31,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:00:31,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:00:31,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:00:31,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:00:31,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:00:31,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:00:31,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:00:31,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:00:31,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:00:31,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:00:31,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:00:31,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:00:31,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:00:31,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:00:31,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:00:31,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:00:31,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:00:31,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:00:31,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:00:31,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:00:31,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:00:31,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:00:31,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:00:31,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:00:31,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:00:31,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:00:31,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:00:31,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:00:31,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:00:31,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:00:31,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:00:31,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:00:31,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:00:31,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 15:00:31,056 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:00:31,056 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:00:31,057 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:00:31,057 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:00:31,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:00:31,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:00:31,061 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:00:31,062 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:00:31,062 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:00:31,062 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:00:31,062 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:00:31,062 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:00:31,062 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:00:31,063 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:00:31,063 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:00:31,063 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:00:31,063 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:00:31,063 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:00:31,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:00:31,064 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:00:31,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:00:31,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:00:31,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:00:31,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:00:31,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:00:31,065 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:00:31,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:00:31,066 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:00:31,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:00:31,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:00:31,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:00:31,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:00:31,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:00:31,067 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:00:31,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:00:31,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:00:31,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:00:31,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:00:31,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:00:31,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:00:31,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0154aeb4546438fd959913f3ea1edb15628dae975b6748d0437c64955b16ea8a [2022-12-14 15:00:31,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:00:31,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:00:31,273 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:00:31,274 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:00:31,275 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:00:31,276 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_45_bad.i [2022-12-14 15:00:33,806 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:00:34,065 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:00:34,065 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_45_bad.i [2022-12-14 15:00:34,078 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/data/aa6f65cf0/230115d1bdf3461cbc186ec7ed2dd07f/FLAG5126351b5 [2022-12-14 15:00:34,387 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/data/aa6f65cf0/230115d1bdf3461cbc186ec7ed2dd07f [2022-12-14 15:00:34,390 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:00:34,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:00:34,394 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:00:34,394 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:00:34,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:00:34,400 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:00:34" (1/1) ... [2022-12-14 15:00:34,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36df6728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:34, skipping insertion in model container [2022-12-14 15:00:34,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:00:34" (1/1) ... [2022-12-14 15:00:34,410 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:00:34,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:00:34,699 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:00:34,999 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:00:35,005 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:00:35,007 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:00:35,009 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:00:35,009 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:00:35,035 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:00:35,038 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:00:35,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:00:35,049 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:00:35,067 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:00:35,106 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:00:35,108 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:00:35,109 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:00:35,111 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:00:35,112 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:00:35,116 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:00:35,117 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:00:35,118 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:00:35,219 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:00:35,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35 WrapperNode [2022-12-14 15:00:35,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:00:35,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:00:35,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:00:35,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:00:35,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,268 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-12-14 15:00:35,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:00:35,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:00:35,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:00:35,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:00:35,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,287 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,288 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:00:35,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:00:35,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:00:35,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:00:35,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (1/1) ... [2022-12-14 15:00:35,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:00:35,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:00:35,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:00:35,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:00:35,351 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:00:35,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:00:35,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:00:35,460 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:00:35,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:00:35,547 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:00:35,569 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:00:35,569 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:00:35,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:00:35 BoogieIcfgContainer [2022-12-14 15:00:35,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:00:35,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:00:35,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:00:35,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:00:35,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:00:34" (1/3) ... [2022-12-14 15:00:35,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1030eccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:00:35, skipping insertion in model container [2022-12-14 15:00:35,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:35" (2/3) ... [2022-12-14 15:00:35,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1030eccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:00:35, skipping insertion in model container [2022-12-14 15:00:35,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:00:35" (3/3) ... [2022-12-14 15:00:35,577 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_45_bad.i [2022-12-14 15:00:35,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:00:35,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:00:35,622 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:00:35,627 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=FINITE_AUTOMATA, 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;@3d0ea2a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:00:35,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:00:35,630 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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) [2022-12-14 15:00:35,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 15:00:35,635 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:35,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:00:35,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:00:35,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:35,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1634006193, now seen corresponding path program 1 times [2022-12-14 15:00:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:00:35,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485827155] [2022-12-14 15:00:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:35,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:00:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:00:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:00:35,867 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:00:35,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485827155] [2022-12-14 15:00:35,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485827155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:00:35,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:00:35,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:00:35,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316668100] [2022-12-14 15:00:35,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:00:35,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:00:35,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:00:35,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:00:35,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:00:35,899 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-14 15:00:35,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:00:35,941 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 15:00:35,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:00:35,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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 8 [2022-12-14 15:00:35,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:00:35,947 INFO L225 Difference]: With dead ends: 15 [2022-12-14 15:00:35,947 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 15:00:35,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:00:35,951 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:00:35,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 15:00:35,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 15:00:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 15:00:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 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) [2022-12-14 15:00:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 15:00:35,974 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 15:00:35,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:00:35,975 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 15:00:35,975 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-12-14 15:00:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 15:00:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 15:00:35,976 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:35,976 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:00:35,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:00:35,976 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:00:35,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:35,977 INFO L85 PathProgramCache]: Analyzing trace with hash 885415623, now seen corresponding path program 1 times [2022-12-14 15:00:35,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:00:35,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835614578] [2022-12-14 15:00:35,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:35,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:00:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:00:35,998 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:00:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:00:36,023 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:00:36,023 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:00:36,024 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:00:36,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:00:36,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:00:36,028 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 15:00:36,031 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:00:36,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:00:36 BoogieIcfgContainer [2022-12-14 15:00:36,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:00:36,046 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:00:36,046 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:00:36,047 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:00:36,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:00:35" (3/4) ... [2022-12-14 15:00:36,049 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:00:36,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:00:36,050 INFO L158 Benchmark]: Toolchain (without parser) took 1658.00ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 58.0MB in the end (delta: 53.2MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2022-12-14 15:00:36,050 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:00:36,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 826.38ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 115.7MB in the end (delta: -4.5MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2022-12-14 15:00:36,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.71ms. Allocated memory is still 148.9MB. Free memory was 115.7MB in the beginning and 113.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:00:36,051 INFO L158 Benchmark]: Boogie Preprocessor took 21.58ms. Allocated memory is still 148.9MB. Free memory was 113.2MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:00:36,051 INFO L158 Benchmark]: RCFGBuilder took 279.47ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 96.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 15:00:36,052 INFO L158 Benchmark]: TraceAbstraction took 473.58ms. Allocated memory is still 148.9MB. Free memory was 95.8MB in the beginning and 58.7MB in the end (delta: 37.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-14 15:00:36,052 INFO L158 Benchmark]: Witness Printer took 2.85ms. Allocated memory is still 148.9MB. Free memory was 58.7MB in the beginning and 58.0MB in the end (delta: 705.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:00:36,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 119.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 826.38ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 115.7MB in the end (delta: -4.5MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.71ms. Allocated memory is still 148.9MB. Free memory was 115.7MB in the beginning and 113.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.58ms. Allocated memory is still 148.9MB. Free memory was 113.2MB in the beginning and 111.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 279.47ms. Allocated memory is still 148.9MB. Free memory was 111.2MB in the beginning and 96.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 473.58ms. Allocated memory is still 148.9MB. Free memory was 95.8MB in the beginning and 58.7MB in the end (delta: 37.0MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 2.85ms. Allocated memory is still 148.9MB. Free memory was 58.7MB in the beginning and 58.0MB in the end (delta: 705.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567. 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); [L1548] static int CWE190_Integer_Overflow__int_fgets_add_45_badData; [L1549] static int CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData; [L1550] static int CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData; [L1580] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_add_45_badData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, CWE190_Integer_Overflow__int_fgets_add_45_badData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_add_45_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1574] CWE190_Integer_Overflow__int_fgets_add_45_badData = data [L1575] CALL badSink() [L1553] int data = CWE190_Integer_Overflow__int_fgets_add_45_badData; VAL [CWE190_Integer_Overflow__int_fgets_add_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, 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] [L1555] data + 1 VAL [CWE190_Integer_Overflow__int_fgets_add_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, 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: 1555]: 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, 15 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, 10 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 9 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 [2022-12-14 15:00:36,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0154aeb4546438fd959913f3ea1edb15628dae975b6748d0437c64955b16ea8a --- 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 [2022-12-14 15:00:37,841 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:00:37,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:00:37,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:00:37,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:00:37,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:00:37,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:00:37,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:00:37,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:00:37,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:00:37,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:00:37,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:00:37,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:00:37,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:00:37,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:00:37,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:00:37,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:00:37,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:00:37,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:00:37,883 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:00:37,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:00:37,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:00:37,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:00:37,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:00:37,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:00:37,892 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:00:37,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:00:37,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:00:37,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:00:37,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:00:37,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:00:37,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:00:37,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:00:37,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:00:37,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:00:37,899 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:00:37,900 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:00:37,900 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:00:37,900 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:00:37,901 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:00:37,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:00:37,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 15:00:37,925 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:00:37,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:00:37,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:00:37,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:00:37,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:00:37,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:00:37,927 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:00:37,927 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:00:37,928 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:00:37,928 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:00:37,928 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:00:37,928 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:00:37,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:00:37,929 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:00:37,929 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:00:37,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:00:37,930 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:00:37,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:00:37,930 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:00:37,930 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:00:37,930 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:00:37,930 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:00:37,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:00:37,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:00:37,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:00:37,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:00:37,931 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:00:37,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:00:37,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:00:37,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:00:37,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:00:37,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:00:37,937 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:00:37,937 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:00:37,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:00:37,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:00:37,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:00:37,937 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0154aeb4546438fd959913f3ea1edb15628dae975b6748d0437c64955b16ea8a [2022-12-14 15:00:38,143 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:00:38,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:00:38,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:00:38,162 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:00:38,162 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:00:38,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_45_bad.i [2022-12-14 15:00:40,743 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:00:40,994 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:00:40,995 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_45_bad.i [2022-12-14 15:00:41,011 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/data/9f154429f/d5ddc3d058534501a6dcb67389d67348/FLAG33e3ad236 [2022-12-14 15:00:41,023 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/data/9f154429f/d5ddc3d058534501a6dcb67389d67348 [2022-12-14 15:00:41,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:00:41,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:00:41,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:00:41,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:00:41,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:00:41,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78cc32ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41, skipping insertion in model container [2022-12-14 15:00:41,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:00:41,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:00:41,332 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:00:41,651 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:00:41,655 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:00:41,657 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:00:41,659 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:00:41,660 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:00:41,679 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:00:41,681 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:00:41,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:00:41,695 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:00:41,713 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:00:41,761 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:00:41,763 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:00:41,764 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:00:41,767 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:00:41,767 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:00:41,772 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 15:00:41,774 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:00:41,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:00:41,867 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:00:41,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41 WrapperNode [2022-12-14 15:00:41,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:00:41,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:00:41,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:00:41,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:00:41,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,898 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,918 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-14 15:00:41,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:00:41,919 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:00:41,919 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:00:41,919 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:00:41,926 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,926 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,930 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,943 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:00:41,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:00:41,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:00:41,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:00:41,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (1/1) ... [2022-12-14 15:00:41,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:00:41,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:00:41,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:00:41,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:00:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 15:00:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:00:41,997 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:00:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:00:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 15:00:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:00:41,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:00:41,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:00:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:00:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:00:41,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 15:00:42,131 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:00:42,132 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:00:42,239 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:00:42,243 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:00:42,243 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:00:42,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:00:42 BoogieIcfgContainer [2022-12-14 15:00:42,245 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:00:42,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:00:42,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:00:42,248 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:00:42,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:00:41" (1/3) ... [2022-12-14 15:00:42,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50259bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:00:42, skipping insertion in model container [2022-12-14 15:00:42,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:00:41" (2/3) ... [2022-12-14 15:00:42,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50259bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:00:42, skipping insertion in model container [2022-12-14 15:00:42,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:00:42" (3/3) ... [2022-12-14 15:00:42,250 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_45_bad.i [2022-12-14 15:00:42,263 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:00:42,264 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:00:42,295 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:00:42,299 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=FINITE_AUTOMATA, 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;@34561353, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:00:42,299 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:00:42,302 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) [2022-12-14 15:00:42,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 15:00:42,307 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:42,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:00:42,308 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:00:42,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:42,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-14 15:00:42,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:00:42,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983425638] [2022-12-14 15:00:42,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:42,322 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 [2022-12-14 15:00:42,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:00:42,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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) [2022-12-14 15:00:42,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:00:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:00:42,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 15:00:42,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:00:42,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:00:42,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:00:42,452 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 15:00:42,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983425638] [2022-12-14 15:00:42,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983425638] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:00:42,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:00:42,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 15:00:42,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968275815] [2022-12-14 15:00:42,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:00:42,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:00:42,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 15:00:42,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:00:42,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:00:42,480 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:00:42,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:00:42,492 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-14 15:00:42,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:00:42,493 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 15:00:42,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:00:42,498 INFO L225 Difference]: With dead ends: 23 [2022-12-14 15:00:42,498 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 15:00:42,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:00:42,502 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 [2022-12-14 15:00:42,502 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] [2022-12-14 15:00:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 15:00:42,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 15:00:42,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:00:42,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 15:00:42,524 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 15:00:42,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:00:42,525 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 15:00:42,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 15:00:42,525 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 15:00:42,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 15:00:42,526 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:00:42,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:00:42,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:00:42,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:00:42,728 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:00:42,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:00:42,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-14 15:00:42,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:00:42,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [279306265] [2022-12-14 15:00:42,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:00:42,733 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 [2022-12-14 15:00:42,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:00:42,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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) [2022-12-14 15:00:42,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:00:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:00:42,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:00:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:00:42,935 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 15:00:42,935 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:00:42,937 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:00:42,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:00:42,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:00:43,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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 [2022-12-14 15:00:43,143 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 15:00:43,147 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:00:43,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:00:43 BoogieIcfgContainer [2022-12-14 15:00:43,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:00:43,177 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:00:43,177 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:00:43,177 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:00:43,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:00:42" (3/4) ... [2022-12-14 15:00:43,181 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:00:43,181 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:00:43,181 INFO L158 Benchmark]: Toolchain (without parser) took 2155.00ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 48.2MB in the beginning and 32.1MB in the end (delta: 16.1MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-12-14 15:00:43,182 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:00:43,183 INFO L158 Benchmark]: CACSL2BoogieTranslator took 840.00ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 48.0MB in the beginning and 58.8MB in the end (delta: -10.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2022-12-14 15:00:43,183 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.57ms. Allocated memory is still 98.6MB. Free memory was 58.8MB in the beginning and 56.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:00:43,183 INFO L158 Benchmark]: Boogie Preprocessor took 29.18ms. Allocated memory is still 98.6MB. Free memory was 56.0MB in the beginning and 53.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:00:43,184 INFO L158 Benchmark]: RCFGBuilder took 295.86ms. Allocated memory is still 98.6MB. Free memory was 53.5MB in the beginning and 65.6MB in the end (delta: -12.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-12-14 15:00:43,184 INFO L158 Benchmark]: TraceAbstraction took 929.68ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 32.1MB in the end (delta: 32.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-12-14 15:00:43,184 INFO L158 Benchmark]: Witness Printer took 4.19ms. Allocated memory is still 98.6MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:00:43,186 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 54.5MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 840.00ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 48.0MB in the beginning and 58.8MB in the end (delta: -10.8MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.57ms. Allocated memory is still 98.6MB. Free memory was 58.8MB in the beginning and 56.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.18ms. Allocated memory is still 98.6MB. Free memory was 56.0MB in the beginning and 53.9MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 295.86ms. Allocated memory is still 98.6MB. Free memory was 53.5MB in the beginning and 65.6MB in the end (delta: -12.2MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 929.68ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 32.1MB in the end (delta: 32.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.19ms. Allocated memory is still 98.6MB. Free memory is still 32.1MB. 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567. 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); [L1548] static int CWE190_Integer_Overflow__int_fgets_add_45_badData; [L1549] static int CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData; [L1550] static int CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_add_45_badData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_add_45_badData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE190_Integer_Overflow__int_fgets_add_45_badData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_add_45_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1574] CWE190_Integer_Overflow__int_fgets_add_45_badData = data [L1575] CALL badSink() [L1553] int data = CWE190_Integer_Overflow__int_fgets_add_45_badData; VAL [CWE190_Integer_Overflow__int_fgets_add_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, 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] [L1555] data + 1 VAL [CWE190_Integer_Overflow__int_fgets_add_45_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_45_goodB2GData=0, CWE190_Integer_Overflow__int_fgets_add_45_goodG2BData=0, 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: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 71 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 [2022-12-14 15:00:43,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_11334d26-ca34-485f-aab7-448246959576/bin/utaipan-gh47qXpMRh/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