./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 50fda4c06ece1fc582bb7604c13e06a76a5e35934a3857bc997b0fb367105afe --- 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 12:38:15,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:38:15,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:38:15,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:38:15,388 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:38:15,389 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:38:15,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:38:15,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:38:15,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:38:15,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:38:15,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:38:15,396 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:38:15,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:38:15,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:38:15,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:38:15,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:38:15,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:38:15,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:38:15,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:38:15,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:38:15,405 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:38:15,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:38:15,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:38:15,408 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:38:15,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:38:15,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:38:15,412 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:38:15,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:38:15,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:38:15,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:38:15,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:38:15,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:38:15,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:38:15,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:38:15,417 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:38:15,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:38:15,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:38:15,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:38:15,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:38:15,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:38:15,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:38:15,420 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 12:38:15,440 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:38:15,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:38:15,440 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:38:15,440 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:38:15,441 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:38:15,441 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:38:15,441 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:38:15,441 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:38:15,441 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:38:15,442 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:38:15,442 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:38:15,442 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:38:15,442 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:38:15,442 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:38:15,442 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:38:15,443 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:38:15,443 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:38:15,443 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:38:15,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:38:15,444 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:38:15,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:38:15,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:38:15,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:38:15,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:38:15,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:38:15,445 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:38:15,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:38:15,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:38:15,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:38:15,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:38:15,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:38:15,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:38:15,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:38:15,446 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:38:15,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:38:15,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:38:15,446 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:38:15,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:38:15,447 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:38:15,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:38:15,447 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_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50fda4c06ece1fc582bb7604c13e06a76a5e35934a3857bc997b0fb367105afe [2022-12-14 12:38:15,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:38:15,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:38:15,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:38:15,668 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:38:15,668 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:38:15,670 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i [2022-12-14 12:38:18,307 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:38:18,563 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:38:18,563 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i [2022-12-14 12:38:18,582 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/data/27d2c3d0d/2fa5d9762e864ed0b994b72e374f0ffc/FLAG729f3eb1b [2022-12-14 12:38:18,596 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/data/27d2c3d0d/2fa5d9762e864ed0b994b72e374f0ffc [2022-12-14 12:38:18,598 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:38:18,600 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:38:18,601 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:38:18,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:38:18,605 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:38:18,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:38:18" (1/1) ... [2022-12-14 12:38:18,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3325ca29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:18, skipping insertion in model container [2022-12-14 12:38:18,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:38:18" (1/1) ... [2022-12-14 12:38:18,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:38:18,656 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:38:18,884 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:38:19,161 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:38:19,166 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:38:19,167 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:38:19,169 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:38:19,169 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:38:19,188 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 12:38:19,192 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:38:19,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:38:19,203 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:38:19,217 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:38:19,272 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:38:19,274 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:38:19,274 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:38:19,277 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:38:19,277 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:38:19,281 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 12:38:19,282 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:38:19,283 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:38:19,369 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:38:19,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19 WrapperNode [2022-12-14 12:38:19,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:38:19,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:38:19,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:38:19,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:38:19,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,406 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 58 [2022-12-14 12:38:19,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:38:19,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:38:19,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:38:19,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:38:19,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,419 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,421 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,424 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:38:19,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:38:19,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:38:19,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:38:19,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (1/1) ... [2022-12-14 12:38:19,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:38:19,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:38:19,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:38:19,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:38:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 12:38:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 12:38:19,483 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 12:38:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:38:19,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 12:38:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:38:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:38:19,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:38:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:38:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 12:38:19,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:38:19,607 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:38:19,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:38:19,722 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:38:19,755 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:38:19,755 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:38:19,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:38:19 BoogieIcfgContainer [2022-12-14 12:38:19,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:38:19,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:38:19,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:38:19,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:38:19,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:38:18" (1/3) ... [2022-12-14 12:38:19,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420b7ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:38:19, skipping insertion in model container [2022-12-14 12:38:19,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:19" (2/3) ... [2022-12-14 12:38:19,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@420b7ab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:38:19, skipping insertion in model container [2022-12-14 12:38:19,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:38:19" (3/3) ... [2022-12-14 12:38:19,765 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i [2022-12-14 12:38:19,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:38:19,780 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 12:38:19,819 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:38:19,825 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;@7e29fc6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:38:19,825 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 12:38:19,828 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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 12:38:19,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 12:38:19,834 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:19,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:38:19,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 12:38:19,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:19,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1744098009, now seen corresponding path program 1 times [2022-12-14 12:38:19,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:38:19,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884462899] [2022-12-14 12:38:19,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:19,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:19,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:20,076 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 12:38:20,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 12:38:20,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884462899] [2022-12-14 12:38:20,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884462899] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:20,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:38:20,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:38:20,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732820439] [2022-12-14 12:38:20,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:20,084 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:38:20,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 12:38:20,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:38:20,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:38:20,115 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 12:38:20,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:38:20,152 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-12-14 12:38:20,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:38:20,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2022-12-14 12:38:20,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:38:20,161 INFO L225 Difference]: With dead ends: 21 [2022-12-14 12:38:20,161 INFO L226 Difference]: Without dead ends: 12 [2022-12-14 12:38:20,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:38:20,167 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:38:20,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:38:20,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-12-14 12:38:20,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-12-14 12:38:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 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 12:38:20,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-12-14 12:38:20,200 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-12-14 12:38:20,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:38:20,201 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-12-14 12:38:20,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 12:38:20,202 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 12:38:20,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 12:38:20,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:20,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:38:20,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:38:20,203 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 12:38:20,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:20,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1767536626, now seen corresponding path program 1 times [2022-12-14 12:38:20,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:38:20,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494193425] [2022-12-14 12:38:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:20,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:38:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:38:20,236 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:38:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:38:20,279 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 12:38:20,279 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:38:20,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 12:38:20,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 12:38:20,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 12:38:20,284 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 12:38:20,287 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:38:20,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:38:20 BoogieIcfgContainer [2022-12-14 12:38:20,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:38:20,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:38:20,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:38:20,307 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:38:20,307 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:38:19" (3/4) ... [2022-12-14 12:38:20,310 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 12:38:20,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:38:20,311 INFO L158 Benchmark]: Toolchain (without parser) took 1711.16ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.4MB in the beginning and 133.9MB in the end (delta: -36.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:38:20,311 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:38:20,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 768.85ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.1MB in the beginning and 105.3MB in the end (delta: -8.2MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-12-14 12:38:20,312 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.63ms. Allocated memory is still 172.0MB. Free memory was 105.3MB in the beginning and 102.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:38:20,312 INFO L158 Benchmark]: Boogie Preprocessor took 17.49ms. Allocated memory is still 172.0MB. Free memory was 102.2MB in the beginning and 100.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:38:20,313 INFO L158 Benchmark]: RCFGBuilder took 333.85ms. Allocated memory is still 172.0MB. Free memory was 100.1MB in the beginning and 85.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 12:38:20,313 INFO L158 Benchmark]: TraceAbstraction took 545.97ms. Allocated memory is still 172.0MB. Free memory was 85.4MB in the beginning and 134.9MB in the end (delta: -49.5MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. [2022-12-14 12:38:20,313 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 172.0MB. Free memory is still 133.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:38:20,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 768.85ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 97.1MB in the beginning and 105.3MB in the end (delta: -8.2MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.63ms. Allocated memory is still 172.0MB. Free memory was 105.3MB in the beginning and 102.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.49ms. Allocated memory is still 172.0MB. Free memory was 102.2MB in the beginning and 100.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 333.85ms. Allocated memory is still 172.0MB. Free memory was 100.1MB in the beginning and 85.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 545.97ms. Allocated memory is still 172.0MB. Free memory was 85.4MB in the beginning and 134.9MB in the end (delta: -49.5MB). Peak memory consumption was 36.5MB. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 172.0MB. Free memory is still 133.9MB. 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741829:1073741827}, argv={1073741829:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE190_Integer_Overflow__int_fgets_multiply_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE190_Integer_Overflow__int_fgets_multiply_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CALL funcPtr(data) [L1577] COND TRUE data > 0 VAL [\old(data)=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] data * 2 VAL [\old(data)=1073741824, data=1073741824, 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: 1579]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 12:38:20,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 50fda4c06ece1fc582bb7604c13e06a76a5e35934a3857bc997b0fb367105afe --- 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 12:38:22,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:38:22,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:38:22,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:38:22,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:38:22,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:38:22,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:38:22,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:38:22,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:38:22,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:38:22,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:38:22,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:38:22,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:38:22,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:38:22,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:38:22,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:38:22,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:38:22,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:38:22,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:38:22,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:38:22,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:38:22,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:38:22,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:38:22,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:38:22,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:38:22,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:38:22,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:38:22,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:38:22,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:38:22,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:38:22,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:38:22,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:38:22,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:38:22,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:38:22,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:38:22,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:38:22,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:38:22,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:38:22,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:38:22,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:38:22,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:38:22,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 12:38:22,174 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:38:22,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:38:22,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:38:22,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:38:22,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:38:22,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:38:22,176 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:38:22,176 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:38:22,176 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:38:22,176 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:38:22,176 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:38:22,176 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:38:22,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:38:22,177 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:38:22,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:38:22,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:38:22,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:38:22,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:38:22,178 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 12:38:22,178 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 12:38:22,178 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:38:22,179 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 12:38:22,179 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:38:22,179 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:38:22,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:38:22,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:38:22,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 12:38:22,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:38:22,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:38:22,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:38:22,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:38:22,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:38:22,180 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 12:38:22,181 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 12:38:22,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:38:22,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:38:22,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 12:38:22,181 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_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50fda4c06ece1fc582bb7604c13e06a76a5e35934a3857bc997b0fb367105afe [2022-12-14 12:38:22,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:38:22,429 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:38:22,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:38:22,432 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:38:22,432 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:38:22,433 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i [2022-12-14 12:38:25,049 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:38:25,272 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:38:25,272 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i [2022-12-14 12:38:25,285 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/data/f58f2c769/c9389ab5dd53482aaefed26dc5d8e8b6/FLAG5686560d2 [2022-12-14 12:38:25,296 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/data/f58f2c769/c9389ab5dd53482aaefed26dc5d8e8b6 [2022-12-14 12:38:25,298 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:38:25,299 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:38:25,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:38:25,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:38:25,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:38:25,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:38:25" (1/1) ... [2022-12-14 12:38:25,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c6fa297 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:25, skipping insertion in model container [2022-12-14 12:38:25,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:38:25" (1/1) ... [2022-12-14 12:38:25,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:38:25,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:38:25,624 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:38:25,922 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:38:25,927 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:38:25,929 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:38:25,931 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:38:25,931 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:38:25,949 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 12:38:25,953 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:38:25,955 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:38:25,966 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:38:25,978 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:38:26,011 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:38:26,012 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:38:26,012 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:38:26,014 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:38:26,014 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:38:26,017 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 12:38:26,018 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:38:26,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:38:26,149 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:38:26,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26 WrapperNode [2022-12-14 12:38:26,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:38:26,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:38:26,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:38:26,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:38:26,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,176 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,193 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2022-12-14 12:38:26,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:38:26,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:38:26,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:38:26,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:38:26,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:38:26,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:38:26,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:38:26,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:38:26,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (1/1) ... [2022-12-14 12:38:26,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:38:26,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:38:26,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:38:26,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:38:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 12:38:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 12:38:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 12:38:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:38:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 12:38:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:38:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:38:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:38:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:38:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 12:38:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 12:38:26,398 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:38:26,400 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:38:26,534 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:38:26,539 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:38:26,539 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:38:26,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:38:26 BoogieIcfgContainer [2022-12-14 12:38:26,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:38:26,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:38:26,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:38:26,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:38:26,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:38:25" (1/3) ... [2022-12-14 12:38:26,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d32268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:38:26, skipping insertion in model container [2022-12-14 12:38:26,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:38:26" (2/3) ... [2022-12-14 12:38:26,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53d32268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:38:26, skipping insertion in model container [2022-12-14 12:38:26,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:38:26" (3/3) ... [2022-12-14 12:38:26,549 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_65_bad.i [2022-12-14 12:38:26,566 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:38:26,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 12:38:26,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:38:26,616 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;@50f0c168, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:38:26,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 12:38:26,620 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 12:38:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 12:38:26,627 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:26,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:38:26,628 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 12:38:26,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:26,637 INFO L85 PathProgramCache]: Analyzing trace with hash -83245182, now seen corresponding path program 1 times [2022-12-14 12:38:26,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:38:26,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303427560] [2022-12-14 12:38:26,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:26,650 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 12:38:26,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:38:26,651 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 12:38:26,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 12:38:26,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 12:38:26,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 12:38:26,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 12:38:26,813 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 12:38:26,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 12:38:26,814 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 12:38:26,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303427560] [2022-12-14 12:38:26,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303427560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 12:38:26,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 12:38:26,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 12:38:26,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343487339] [2022-12-14 12:38:26,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 12:38:26,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 12:38:26,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 12:38:26,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 12:38:26,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:38:26,848 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:38:26,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 12:38:26,876 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-12-14 12:38:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 12:38:26,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-14 12:38:26,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 12:38:26,883 INFO L225 Difference]: With dead ends: 33 [2022-12-14 12:38:26,883 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 12:38:26,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 12:38:26,887 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 12:38:26,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 55 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 12:38:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 12:38:26,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 12:38:26,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 12:38:26,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-14 12:38:26,912 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-14 12:38:26,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 12:38:26,913 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-14 12:38:26,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 12:38:26,913 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-14 12:38:26,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 12:38:26,914 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:38:26,914 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:38:26,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 12:38:27,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 12:38:27,116 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 12:38:27,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:38:27,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1714366711, now seen corresponding path program 1 times [2022-12-14 12:38:27,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:38:27,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [539261641] [2022-12-14 12:38:27,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:38:27,121 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 12:38:27,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:38:27,125 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 12:38:27,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 12:38:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:38:27,310 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:38:27,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:38:27,363 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 12:38:27,364 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:38:27,365 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 12:38:27,367 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 12:38:27,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 12:38:27,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/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 12:38:27,578 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 12:38:27,588 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:38:27,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:38:27 BoogieIcfgContainer [2022-12-14 12:38:27,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:38:27,637 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:38:27,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:38:27,637 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:38:27,637 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:38:26" (3/4) ... [2022-12-14 12:38:27,640 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 12:38:27,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:38:27,641 INFO L158 Benchmark]: Toolchain (without parser) took 2341.90ms. Allocated memory is still 73.4MB. Free memory was 50.1MB in the beginning and 39.1MB in the end (delta: 11.0MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2022-12-14 12:38:27,641 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory is still 34.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:38:27,642 INFO L158 Benchmark]: CACSL2BoogieTranslator took 849.49ms. Allocated memory is still 73.4MB. Free memory was 49.9MB in the beginning and 34.0MB in the end (delta: 15.9MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-12-14 12:38:27,642 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.08ms. Allocated memory is still 73.4MB. Free memory was 34.0MB in the beginning and 30.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 12:38:27,643 INFO L158 Benchmark]: Boogie Preprocessor took 23.36ms. Allocated memory is still 73.4MB. Free memory was 30.8MB in the beginning and 47.3MB in the end (delta: -16.6MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2022-12-14 12:38:27,643 INFO L158 Benchmark]: RCFGBuilder took 323.33ms. Allocated memory is still 73.4MB. Free memory was 47.0MB in the beginning and 33.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 12:38:27,643 INFO L158 Benchmark]: TraceAbstraction took 1092.99ms. Allocated memory is still 73.4MB. Free memory was 32.3MB in the beginning and 39.5MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:38:27,644 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 73.4MB. Free memory was 39.5MB in the beginning and 39.1MB in the end (delta: 389.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:38:27,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory is still 34.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 849.49ms. Allocated memory is still 73.4MB. Free memory was 49.9MB in the beginning and 34.0MB in the end (delta: 15.9MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.08ms. Allocated memory is still 73.4MB. Free memory was 34.0MB in the beginning and 30.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.36ms. Allocated memory is still 73.4MB. Free memory was 30.8MB in the beginning and 47.3MB in the end (delta: -16.6MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * RCFGBuilder took 323.33ms. Allocated memory is still 73.4MB. Free memory was 47.0MB in the beginning and 33.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1092.99ms. Allocated memory is still 73.4MB. Free memory was 32.3MB in the beginning and 39.5MB in the end (delta: -7.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 73.4MB. Free memory was 39.5MB in the beginning and 39.1MB in the end (delta: 389.4kB). 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: 1579]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE190_Integer_Overflow__int_fgets_multiply_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE190_Integer_Overflow__int_fgets_multiply_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CALL funcPtr(data) [L1577] COND TRUE data > 0 VAL [\old(data)=1073741824, data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] data * 2 VAL [\old(data)=1073741824, data=1073741824, 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: 1579]: 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, 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, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 2 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 12:38:27,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75ed9ee9-461e-47cc-b934-4fc8fe4a4fae/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample