./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 19f71b33981d45bfaf89d18943aa51a1d43ccac507b6487cdf8542390b8e7750 --- 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 09:09:07,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:09:07,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:09:07,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:09:07,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:09:07,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:09:07,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:09:07,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:09:07,531 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:09:07,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:09:07,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:09:07,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:09:07,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:09:07,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:09:07,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:09:07,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:09:07,536 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:09:07,537 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:09:07,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:09:07,540 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:09:07,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:09:07,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:09:07,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:09:07,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:09:07,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:09:07,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:09:07,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:09:07,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:09:07,547 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:09:07,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:09:07,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:09:07,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:09:07,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:09:07,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:09:07,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:09:07,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:09:07,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:09:07,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:09:07,552 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:09:07,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:09:07,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:09:07,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 09:09:07,569 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:09:07,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:09:07,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:09:07,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:09:07,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:09:07,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:09:07,571 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:09:07,571 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:09:07,571 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:09:07,571 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 09:09:07,571 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:09:07,572 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:09:07,572 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 09:09:07,572 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 09:09:07,572 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:09:07,572 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 09:09:07,572 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 09:09:07,572 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 09:09:07,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:09:07,573 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:09:07,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 09:09:07,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:09:07,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:09:07,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:09:07,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:09:07,574 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:09:07,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:09:07,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:09:07,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:09:07,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:09:07,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:09:07,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:09:07,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:09:07,575 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 09:09:07,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:09:07,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:09:07,576 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 09:09:07,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 09:09:07,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:09:07,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:09:07,576 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_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f71b33981d45bfaf89d18943aa51a1d43ccac507b6487cdf8542390b8e7750 [2022-12-14 09:09:07,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:09:07,760 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:09:07,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:09:07,764 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:09:07,764 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:09:07,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i [2022-12-14 09:09:10,294 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:09:10,527 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:09:10,527 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i [2022-12-14 09:09:10,540 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/data/7d2cf9400/fc80f734a9bf44de9b2c5c1b82af8df9/FLAG7aa7da3e3 [2022-12-14 09:09:10,869 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/data/7d2cf9400/fc80f734a9bf44de9b2c5c1b82af8df9 [2022-12-14 09:09:10,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:09:10,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:09:10,875 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:09:10,875 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:09:10,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:09:10,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:09:10" (1/1) ... [2022-12-14 09:09:10,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16137b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:10, skipping insertion in model container [2022-12-14 09:09:10,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:09:10" (1/1) ... [2022-12-14 09:09:10,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:09:10,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:09:11,175 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:09:11,474 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:11,478 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:09:11,480 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:09:11,481 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:09:11,482 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:09:11,501 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 09:09:11,503 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:09:11,503 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:09:11,511 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:09:11,525 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:09:11,558 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:11,560 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:09:11,560 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:09:11,562 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:09:11,563 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:09:11,566 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 09:09:11,567 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:09:11,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:09:11,693 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:09:11,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11 WrapperNode [2022-12-14 09:09:11,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:09:11,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:09:11,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:09:11,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:09:11,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,739 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-14 09:09:11,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:09:11,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:09:11,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:09:11,741 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:09:11,749 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,752 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,761 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,761 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:09:11,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:09:11,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:09:11,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:09:11,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (1/1) ... [2022-12-14 09:09:11,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:09:11,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:09:11,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:09:11,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:09:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 09:09:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 09:09:11,819 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 09:09:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:09:11,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 09:09:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:09:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:09:11,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:09:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:09:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 09:09:11,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 09:09:11,928 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:09:11,930 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:09:12,028 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:09:12,062 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:09:12,062 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:09:12,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:12 BoogieIcfgContainer [2022-12-14 09:09:12,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:09:12,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:09:12,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:09:12,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:09:12,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:09:10" (1/3) ... [2022-12-14 09:09:12,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ccad0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:09:12, skipping insertion in model container [2022-12-14 09:09:12,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:11" (2/3) ... [2022-12-14 09:09:12,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38ccad0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:09:12, skipping insertion in model container [2022-12-14 09:09:12,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:12" (3/3) ... [2022-12-14 09:09:12,073 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i [2022-12-14 09:09:12,087 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:09:12,087 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 09:09:12,125 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:09:12,130 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;@4481a7bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:09:12,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 09:09:12,134 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:09:12,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 09:09:12,139 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:12,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:12,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:09:12,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1634006193, now seen corresponding path program 1 times [2022-12-14 09:09:12,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:12,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624517448] [2022-12-14 09:09:12,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:12,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:12,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:12,378 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 09:09:12,379 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 09:09:12,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624517448] [2022-12-14 09:09:12,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624517448] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:12,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:12,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 09:09:12,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79968274] [2022-12-14 09:09:12,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:12,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 09:09:12,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 09:09:12,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 09:09:12,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 09:09:12,407 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:09:12,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:12,451 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 09:09:12,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 09:09:12,453 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-12-14 09:09:12,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:12,458 INFO L225 Difference]: With dead ends: 15 [2022-12-14 09:09:12,458 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 09:09:12,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 09:09:12,463 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 8 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:12,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 22 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:09:12,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 09:09:12,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 09:09:12,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:09:12,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 09:09:12,489 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 09:09:12,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:12,490 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 09:09:12,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:09:12,490 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 09:09:12,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 09:09:12,491 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:12,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:12,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 09:09:12,492 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:09:12,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:12,493 INFO L85 PathProgramCache]: Analyzing trace with hash 885415623, now seen corresponding path program 1 times [2022-12-14 09:09:12,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 09:09:12,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925204803] [2022-12-14 09:09:12,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:12,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 09:09:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:09:12,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:09:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:09:12,537 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 09:09:12,537 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:09:12,539 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 09:09:12,540 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 09:09:12,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 09:09:12,543 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:09:12,546 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:09:12,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:09:12 BoogieIcfgContainer [2022-12-14 09:09:12,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:09:12,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:09:12,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:09:12,563 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:09:12,564 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:12" (3/4) ... [2022-12-14 09:09:12,566 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:09:12,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:09:12,567 INFO L158 Benchmark]: Toolchain (without parser) took 1693.63ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 94.3MB in the beginning and 111.6MB in the end (delta: -17.4MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-12-14 09:09:12,568 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:09:12,568 INFO L158 Benchmark]: CACSL2BoogieTranslator took 818.57ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 93.7MB in the beginning and 108.5MB in the end (delta: -14.8MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2022-12-14 09:09:12,569 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.80ms. Allocated memory is still 159.4MB. Free memory was 108.5MB in the beginning and 105.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:09:12,569 INFO L158 Benchmark]: Boogie Preprocessor took 22.59ms. Allocated memory is still 159.4MB. Free memory was 105.5MB in the beginning and 103.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:09:12,570 INFO L158 Benchmark]: RCFGBuilder took 300.86ms. Allocated memory is still 159.4MB. Free memory was 103.4MB in the beginning and 88.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 09:09:12,570 INFO L158 Benchmark]: TraceAbstraction took 495.54ms. Allocated memory is still 159.4MB. Free memory was 88.7MB in the beginning and 112.6MB in the end (delta: -23.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:09:12,571 INFO L158 Benchmark]: Witness Printer took 3.79ms. Allocated memory is still 159.4MB. Free memory was 112.6MB in the beginning and 111.6MB in the end (delta: 952.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:09:12,573 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 818.57ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 93.7MB in the beginning and 108.5MB in the end (delta: -14.8MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.80ms. Allocated memory is still 159.4MB. Free memory was 108.5MB in the beginning and 105.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.59ms. Allocated memory is still 159.4MB. Free memory was 105.5MB in the beginning and 103.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.86ms. Allocated memory is still 159.4MB. Free memory was 103.4MB in the beginning and 88.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 495.54ms. Allocated memory is still 159.4MB. Free memory was 88.7MB in the beginning and 112.6MB in the end (delta: -23.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.79ms. Allocated memory is still 159.4MB. Free memory was 112.6MB in the beginning and 111.6MB in the end (delta: 952.4kB). 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_postinc_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1571] CALL badSink(data) [L1551] data++ VAL [\old(data)=2147483647, data=2147483647, data++=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 9 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 09:09:12,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 19f71b33981d45bfaf89d18943aa51a1d43ccac507b6487cdf8542390b8e7750 --- 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 09:09:14,269 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 09:09:14,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 09:09:14,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 09:09:14,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 09:09:14,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 09:09:14,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 09:09:14,291 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 09:09:14,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 09:09:14,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 09:09:14,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 09:09:14,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 09:09:14,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 09:09:14,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 09:09:14,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 09:09:14,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 09:09:14,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 09:09:14,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 09:09:14,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 09:09:14,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 09:09:14,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 09:09:14,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 09:09:14,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 09:09:14,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 09:09:14,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 09:09:14,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 09:09:14,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 09:09:14,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 09:09:14,308 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 09:09:14,308 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 09:09:14,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 09:09:14,309 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 09:09:14,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 09:09:14,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 09:09:14,311 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 09:09:14,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 09:09:14,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 09:09:14,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 09:09:14,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 09:09:14,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 09:09:14,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 09:09:14,313 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 09:09:14,329 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 09:09:14,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 09:09:14,330 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 09:09:14,330 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 09:09:14,330 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 09:09:14,331 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 09:09:14,331 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 09:09:14,331 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 09:09:14,331 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 09:09:14,331 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 09:09:14,331 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 09:09:14,331 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 09:09:14,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 09:09:14,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 09:09:14,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 09:09:14,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 09:09:14,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 09:09:14,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 09:09:14,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 09:09:14,333 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 09:09:14,333 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 09:09:14,333 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 09:09:14,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 09:09:14,333 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 09:09:14,333 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 09:09:14,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 09:09:14,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 09:09:14,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 09:09:14,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:09:14,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 09:09:14,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 09:09:14,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 09:09:14,334 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 09:09:14,334 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 09:09:14,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 09:09:14,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 09:09:14,335 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 09:09:14,335 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_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19f71b33981d45bfaf89d18943aa51a1d43ccac507b6487cdf8542390b8e7750 [2022-12-14 09:09:14,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 09:09:14,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 09:09:14,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 09:09:14,557 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 09:09:14,558 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 09:09:14,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i [2022-12-14 09:09:17,130 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 09:09:17,414 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 09:09:17,414 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i [2022-12-14 09:09:17,432 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/data/6b652c977/2bd958e32ad1477a99c7fdce9354fad9/FLAGb1463a716 [2022-12-14 09:09:17,447 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/data/6b652c977/2bd958e32ad1477a99c7fdce9354fad9 [2022-12-14 09:09:17,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 09:09:17,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 09:09:17,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 09:09:17,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 09:09:17,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 09:09:17,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:09:17" (1/1) ... [2022-12-14 09:09:17,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59585d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:17, skipping insertion in model container [2022-12-14 09:09:17,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 09:09:17" (1/1) ... [2022-12-14 09:09:17,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 09:09:17,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 09:09:17,763 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:09:18,092 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:18,098 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:09:18,099 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:09:18,101 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:09:18,102 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:09:18,123 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 09:09:18,126 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:09:18,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:09:18,140 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 09:09:18,157 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 09:09:18,202 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 09:09:18,204 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:09:18,205 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 09:09:18,207 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:09:18,207 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 09:09:18,211 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 09:09:18,213 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 09:09:18,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 09:09:18,336 INFO L208 MainTranslator]: Completed translation [2022-12-14 09:09:18,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18 WrapperNode [2022-12-14 09:09:18,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 09:09:18,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 09:09:18,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 09:09:18,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 09:09:18,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,373 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2022-12-14 09:09:18,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 09:09:18,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 09:09:18,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 09:09:18,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 09:09:18,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,397 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 09:09:18,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 09:09:18,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 09:09:18,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 09:09:18,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (1/1) ... [2022-12-14 09:09:18,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 09:09:18,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 09:09:18,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 09:09:18,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 09:09:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 09:09:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 09:09:18,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 09:09:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 09:09:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 09:09:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 09:09:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 09:09:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 09:09:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 09:09:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 09:09:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 09:09:18,565 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 09:09:18,567 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 09:09:18,682 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 09:09:18,686 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 09:09:18,686 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 09:09:18,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:18 BoogieIcfgContainer [2022-12-14 09:09:18,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 09:09:18,690 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 09:09:18,690 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 09:09:18,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 09:09:18,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 09:09:17" (1/3) ... [2022-12-14 09:09:18,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51362f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:09:18, skipping insertion in model container [2022-12-14 09:09:18,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 09:09:18" (2/3) ... [2022-12-14 09:09:18,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51362f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 09:09:18, skipping insertion in model container [2022-12-14 09:09:18,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:18" (3/3) ... [2022-12-14 09:09:18,694 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_41_bad.i [2022-12-14 09:09:18,713 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 09:09:18,713 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 09:09:18,750 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 09:09:18,755 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;@240f4570, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 09:09:18,756 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 09:09:18,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 09:09:18,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 09:09:18,765 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:18,766 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:18,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:09:18,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:18,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-14 09:09:18,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:09:18,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624986073] [2022-12-14 09:09:18,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:18,782 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 09:09:18,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:09:18,783 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 09:09:18,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 09:09:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 09:09:18,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 09:09:18,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 09:09:18,930 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 09:09:18,931 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 09:09:18,931 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 09:09:18,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624986073] [2022-12-14 09:09:18,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624986073] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 09:09:18,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 09:09:18,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 09:09:18,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163310850] [2022-12-14 09:09:18,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 09:09:18,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 09:09:18,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 09:09:18,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 09:09:18,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:09:18,959 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:09:18,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 09:09:18,972 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-14 09:09:18,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 09:09:18,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 09:09:18,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 09:09:18,978 INFO L225 Difference]: With dead ends: 23 [2022-12-14 09:09:18,978 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 09:09:18,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 09:09:18,983 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 09:09:18,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 09:09:18,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 09:09:19,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 09:09:19,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 09:09:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-14 09:09:19,011 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-14 09:09:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 09:09:19,012 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-14 09:09:19,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 09:09:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-14 09:09:19,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 09:09:19,013 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 09:09:19,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 09:09:19,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 09:09:19,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 09:09:19,214 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 09:09:19,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 09:09:19,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-14 09:09:19,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 09:09:19,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [443807030] [2022-12-14 09:09:19,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 09:09:19,216 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 09:09:19,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 09:09:19,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 09:09:19,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 09:09:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:09:19,302 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 09:09:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 09:09:19,356 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 09:09:19,357 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 09:09:19,358 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 09:09:19,359 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 09:09:19,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 09:09:19,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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 09:09:19,567 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 09:09:19,574 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 09:09:19,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 09:09:19 BoogieIcfgContainer [2022-12-14 09:09:19,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 09:09:19,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 09:09:19,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 09:09:19,637 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 09:09:19,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 09:09:18" (3/4) ... [2022-12-14 09:09:19,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 09:09:19,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 09:09:19,647 INFO L158 Benchmark]: Toolchain (without parser) took 2195.81ms. Allocated memory is still 75.5MB. Free memory was 50.6MB in the beginning and 39.7MB in the end (delta: 10.9MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2022-12-14 09:09:19,648 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:09:19,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 884.53ms. Allocated memory is still 75.5MB. Free memory was 50.4MB in the beginning and 46.9MB in the end (delta: 3.5MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-12-14 09:09:19,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.00ms. Allocated memory is still 75.5MB. Free memory was 46.9MB in the beginning and 44.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:09:19,650 INFO L158 Benchmark]: Boogie Preprocessor took 28.59ms. Allocated memory is still 75.5MB. Free memory was 44.0MB in the beginning and 41.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 09:09:19,651 INFO L158 Benchmark]: RCFGBuilder took 284.37ms. Allocated memory is still 75.5MB. Free memory was 41.9MB in the beginning and 28.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 09:09:19,652 INFO L158 Benchmark]: TraceAbstraction took 944.83ms. Allocated memory is still 75.5MB. Free memory was 27.2MB in the beginning and 40.1MB in the end (delta: -12.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:09:19,652 INFO L158 Benchmark]: Witness Printer took 9.93ms. Allocated memory is still 75.5MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 09:09:19,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 884.53ms. Allocated memory is still 75.5MB. Free memory was 50.4MB in the beginning and 46.9MB in the end (delta: 3.5MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.00ms. Allocated memory is still 75.5MB. Free memory was 46.9MB in the beginning and 44.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.59ms. Allocated memory is still 75.5MB. Free memory was 44.0MB in the beginning and 41.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 284.37ms. Allocated memory is still 75.5MB. Free memory was 41.9MB in the beginning and 28.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 944.83ms. Allocated memory is still 75.5MB. Free memory was 27.2MB in the beginning and 40.1MB in the end (delta: -12.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.93ms. Allocated memory is still 75.5MB. Free memory is still 39.7MB. 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_postinc_41_bad() [L1558] int data; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1571] CALL badSink(data) [L1551] data++ VAL [\old(data)=2147483647, data=2147483647, data++=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 69 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 09:09:19,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07bc38b2-b8f4-489a-b3aa-1774f8e6f4c6/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