./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur --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 8a6319d29c4ee33baf4fabdc9b0e79918dc8adba2c58c897b591a4b9e24b6c36 --- 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-38b53e6 [2022-11-26 01:00:06,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:00:06,694 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:00:06,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:00:06,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:00:06,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:00:06,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:00:06,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:00:06,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:00:06,743 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:00:06,745 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:00:06,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:00:06,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:00:06,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:00:06,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:00:06,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:00:06,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:00:06,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:00:06,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:00:06,769 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:00:06,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:00:06,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:00:06,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:00:06,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:00:06,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:00:06,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:00:06,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:00:06,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:00:06,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:00:06,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:00:06,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:00:06,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:00:06,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:00:06,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:00:06,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:00:06,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:00:06,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:00:06,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:00:06,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:00:06,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:00:06,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:00:06,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 01:00:06,835 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:00:06,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:00:06,839 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:00:06,839 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:00:06,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:00:06,841 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:00:06,841 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:00:06,841 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:00:06,842 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:00:06,842 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:00:06,843 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:00:06,844 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:00:06,844 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:00:06,844 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:00:06,844 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:00:06,845 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:00:06,845 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:00:06,845 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:00:06,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:00:06,847 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:00:06,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:00:06,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:00:06,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:00:06,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:00:06,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:00:06,849 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:00:06,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:00:06,849 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:00:06,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:00:06,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:00:06,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:00:06,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:00:06,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:00:06,851 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:00:06,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:00:06,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:00:06,852 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:00:06,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:00:06,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:00:06,853 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:00:06,853 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_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a6319d29c4ee33baf4fabdc9b0e79918dc8adba2c58c897b591a4b9e24b6c36 [2022-11-26 01:00:07,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:00:07,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:00:07,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:00:07,258 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:00:07,258 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:00:07,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i [2022-11-26 01:00:10,310 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:00:10,722 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:00:10,727 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i [2022-11-26 01:00:10,755 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/data/776ed5a44/770e4fffc1e84f708e16007326d670ef/FLAG3d140d3da [2022-11-26 01:00:10,773 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/data/776ed5a44/770e4fffc1e84f708e16007326d670ef [2022-11-26 01:00:10,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:00:10,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:00:10,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:00:10,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:00:10,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:00:10,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:10" (1/1) ... [2022-11-26 01:00:10,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4966724c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:10, skipping insertion in model container [2022-11-26 01:00:10,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:10" (1/1) ... [2022-11-26 01:00:10,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:00:10,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:00:11,321 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:00:11,877 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:00:11,890 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:00:11,894 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:00:11,904 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:00:11,907 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:00:11,940 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:00:11,954 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:00:11,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:00:11,978 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:00:12,013 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:00:12,076 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:00:12,078 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:00:12,079 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:00:12,082 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:00:12,083 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:00:12,087 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:00:12,089 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:00:12,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:00:12,219 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:00:12,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12 WrapperNode [2022-11-26 01:00:12,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:00:12,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:00:12,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:00:12,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:00:12,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,326 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 60 [2022-11-26 01:00:12,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:00:12,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:00:12,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:00:12,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:00:12,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,377 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:00:12,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:00:12,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:00:12,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:00:12,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (1/1) ... [2022-11-26 01:00:12,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:00:12,421 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:00:12,439 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:00:12,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:00:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 01:00:12,485 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:00:12,485 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:00:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:00:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 01:00:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:00:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:00:12,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:00:12,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:00:12,487 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:00:12,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 01:00:12,706 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:00:12,714 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:00:12,962 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:00:13,018 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:00:13,022 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:00:13,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:13 BoogieIcfgContainer [2022-11-26 01:00:13,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:00:13,036 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:00:13,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:00:13,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:00:13,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:00:10" (1/3) ... [2022-11-26 01:00:13,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb099bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:13, skipping insertion in model container [2022-11-26 01:00:13,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:12" (2/3) ... [2022-11-26 01:00:13,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb099bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:13, skipping insertion in model container [2022-11-26 01:00:13,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:13" (3/3) ... [2022-11-26 01:00:13,049 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i [2022-11-26 01:00:13,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:00:13,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:00:13,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:00:13,151 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;@62a2c13c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:00:13,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:00:13,156 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) [2022-11-26 01:00:13,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:00:13,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:13,168 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:13,169 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:00:13,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:13,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1971545999, now seen corresponding path program 1 times [2022-11-26 01:00:13,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:13,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66159969] [2022-11-26 01:00:13,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:13,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:13,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:00:13,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 01:00:13,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66159969] [2022-11-26 01:00:13,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66159969] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:13,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:00:13,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 01:00:13,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707667478] [2022-11-26 01:00:13,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:13,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:00:13,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 01:00:13,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:00:13,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:00:13,854 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) [2022-11-26 01:00:13,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:13,918 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-26 01:00:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 01:00:13,920 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 [2022-11-26 01:00:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:13,928 INFO L225 Difference]: With dead ends: 15 [2022-11-26 01:00:13,928 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 01:00:13,931 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 [2022-11-26 01:00:13,934 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:00:13,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 21 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:00:13,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 01:00:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-26 01:00:13,972 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) [2022-11-26 01:00:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-26 01:00:13,974 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-11-26 01:00:13,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:13,975 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-26 01:00:13,976 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) [2022-11-26 01:00:13,976 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-26 01:00:13,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 01:00:13,977 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:13,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:13,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:00:13,978 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:00:13,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:13,979 INFO L85 PathProgramCache]: Analyzing trace with hash 988383879, now seen corresponding path program 1 times [2022-11-26 01:00:13,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:00:13,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304549948] [2022-11-26 01:00:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:13,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:00:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:00:14,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:00:14,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:00:14,045 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:00:14,045 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:00:14,047 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:00:14,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:00:14,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 01:00:14,053 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:00:14,057 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:00:14,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:00:14 BoogieIcfgContainer [2022-11-26 01:00:14,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:00:14,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:00:14,084 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:00:14,084 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:00:14,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:13" (3/4) ... [2022-11-26 01:00:14,088 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:00:14,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:00:14,089 INFO L158 Benchmark]: Toolchain (without parser) took 3308.82ms. Allocated memory is still 167.8MB. Free memory was 128.3MB in the beginning and 110.9MB in the end (delta: 17.4MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-11-26 01:00:14,090 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:00:14,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1435.53ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 78.0MB in the end (delta: 50.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2022-11-26 01:00:14,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.21ms. Allocated memory is still 167.8MB. Free memory was 78.0MB in the beginning and 75.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:00:14,091 INFO L158 Benchmark]: Boogie Preprocessor took 63.99ms. Allocated memory is still 167.8MB. Free memory was 75.0MB in the beginning and 73.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:00:14,092 INFO L158 Benchmark]: RCFGBuilder took 641.45ms. Allocated memory is still 167.8MB. Free memory was 73.3MB in the beginning and 58.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 01:00:14,093 INFO L158 Benchmark]: TraceAbstraction took 1046.75ms. Allocated memory is still 167.8MB. Free memory was 57.7MB in the beginning and 110.9MB in the end (delta: -53.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:00:14,093 INFO L158 Benchmark]: Witness Printer took 4.61ms. Allocated memory is still 167.8MB. Free memory is still 110.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:00:14,096 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory is still 88.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1435.53ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 78.0MB in the end (delta: 50.1MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.21ms. Allocated memory is still 167.8MB. Free memory was 78.0MB in the beginning and 75.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.99ms. Allocated memory is still 167.8MB. Free memory was 75.0MB in the beginning and 73.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 641.45ms. Allocated memory is still 167.8MB. Free memory was 73.3MB in the beginning and 58.2MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1046.75ms. Allocated memory is still 167.8MB. Free memory was 57.7MB in the beginning and 110.9MB in the end (delta: -53.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.61ms. Allocated memory is still 167.8MB. Free memory is still 110.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483654:2147483652}, argv={2147483654:2147483652}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE190_Integer_Overflow__int_fgets_preinc_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE190_Integer_Overflow__int_fgets_preinc_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CALL funcPtr(data) [L1578] ++data VAL [\old(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: 1578]: 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: 0.9s, 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, 9 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 9 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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 [2022-11-26 01:00:14,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur --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 8a6319d29c4ee33baf4fabdc9b0e79918dc8adba2c58c897b591a4b9e24b6c36 --- 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-38b53e6 [2022-11-26 01:00:16,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:00:16,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:00:16,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:00:16,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:00:16,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:00:16,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:00:16,747 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:00:16,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:00:16,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:00:16,757 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:00:16,758 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:00:16,759 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:00:16,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:00:16,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:00:16,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:00:16,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:00:16,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:00:16,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:00:16,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:00:16,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:00:16,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:00:16,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:00:16,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:00:16,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:00:16,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:00:16,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:00:16,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:00:16,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:00:16,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:00:16,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:00:16,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:00:16,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:00:16,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:00:16,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:00:16,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:00:16,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:00:16,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:00:16,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:00:16,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:00:16,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:00:16,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 01:00:16,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:00:16,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:00:16,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:00:16,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:00:16,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:00:16,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:00:16,848 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:00:16,849 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:00:16,849 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:00:16,849 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:00:16,850 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:00:16,850 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:00:16,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:00:16,852 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 01:00:16,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:00:16,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:00:16,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:00:16,852 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:00:16,853 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:00:16,853 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:00:16,853 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 01:00:16,853 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:00:16,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:00:16,854 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:00:16,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:00:16,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:00:16,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:00:16,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:00:16,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:00:16,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:00:16,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:00:16,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:00:16,856 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:00:16,856 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:00:16,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:00:16,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:00:16,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:00:16,857 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_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a6319d29c4ee33baf4fabdc9b0e79918dc8adba2c58c897b591a4b9e24b6c36 [2022-11-26 01:00:17,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:00:17,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:00:17,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:00:17,311 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:00:17,312 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:00:17,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i [2022-11-26 01:00:20,478 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:00:20,938 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:00:20,939 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i [2022-11-26 01:00:20,968 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/data/3975e93b1/24d8af2d9b3c4fd8a0bc9c6fd0464f3a/FLAG922785cd1 [2022-11-26 01:00:20,987 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/data/3975e93b1/24d8af2d9b3c4fd8a0bc9c6fd0464f3a [2022-11-26 01:00:20,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:00:20,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:00:20,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:00:20,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:00:21,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:00:21,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:20" (1/1) ... [2022-11-26 01:00:21,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1610d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:21, skipping insertion in model container [2022-11-26 01:00:21,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:00:20" (1/1) ... [2022-11-26 01:00:21,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:00:21,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:00:21,585 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:00:22,274 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:00:22,282 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:00:22,287 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:00:22,296 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:00:22,297 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:00:22,320 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:00:22,326 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:00:22,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:00:22,353 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:00:22,388 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 01:00:22,456 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 01:00:22,459 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:00:22,463 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 01:00:22,466 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:00:22,467 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 01:00:22,473 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 01:00:22,479 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 01:00:22,486 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:00:22,661 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:00:22,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22 WrapperNode [2022-11-26 01:00:22,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:00:22,663 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:00:22,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:00:22,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:00:22,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,763 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 59 [2022-11-26 01:00:22,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:00:22,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:00:22,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:00:22,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:00:22,776 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,794 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:00:22,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:00:22,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:00:22,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:00:22,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (1/1) ... [2022-11-26 01:00:22,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:00:22,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:00:22,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:00:22,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:00:22,904 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 01:00:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 01:00:22,905 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 01:00:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 01:00:22,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 01:00:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 01:00:22,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:00:22,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:00:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 01:00:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 01:00:22,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 01:00:23,104 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:00:23,106 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:00:23,282 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:00:23,289 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:00:23,289 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 01:00:23,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:23 BoogieIcfgContainer [2022-11-26 01:00:23,291 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:00:23,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:00:23,294 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:00:23,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:00:23,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:00:20" (1/3) ... [2022-11-26 01:00:23,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ad967a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:23, skipping insertion in model container [2022-11-26 01:00:23,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:00:22" (2/3) ... [2022-11-26 01:00:23,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ad967a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:00:23, skipping insertion in model container [2022-11-26 01:00:23,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:23" (3/3) ... [2022-11-26 01:00:23,300 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_65_bad.i [2022-11-26 01:00:23,321 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:00:23,321 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 01:00:23,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:00:23,377 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;@62e04359, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:00:23,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 01:00:23,381 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-11-26 01:00:23,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 01:00:23,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:23,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:23,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:00:23,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:23,398 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-11-26 01:00:23,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:00:23,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383788380] [2022-11-26 01:00:23,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:23,428 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 [2022-11-26 01:00:23,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:00:23,430 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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) [2022-11-26 01:00:23,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:00:23,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:00:23,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 01:00:23,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:00:23,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:00:23,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:00:23,625 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:00:23,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383788380] [2022-11-26 01:00:23,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383788380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:00:23,627 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:00:23,627 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 01:00:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979757174] [2022-11-26 01:00:23,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:00:23,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 01:00:23,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:00:23,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 01:00:23,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 01:00:23,674 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) [2022-11-26 01:00:23,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:00:23,700 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-11-26 01:00:23,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 01:00:23,707 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 [2022-11-26 01:00:23,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:00:23,715 INFO L225 Difference]: With dead ends: 24 [2022-11-26 01:00:23,715 INFO L226 Difference]: Without dead ends: 14 [2022-11-26 01:00:23,718 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 [2022-11-26 01:00:23,725 INFO L413 NwaCegarLoop]: 26 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, 26 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 [2022-11-26 01:00:23,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:00:23,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-26 01:00:23,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-26 01:00:23,760 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) [2022-11-26 01:00:23,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-26 01:00:23,763 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-26 01:00:23,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:00:23,764 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-26 01:00:23,765 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) [2022-11-26 01:00:23,765 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-26 01:00:23,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 01:00:23,767 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:00:23,767 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 01:00:23,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:00:23,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:00:23,981 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 01:00:23,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:00:23,982 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-11-26 01:00:23,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:00:23,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611370474] [2022-11-26 01:00:23,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:00:23,985 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 [2022-11-26 01:00:23,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:00:23,987 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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) [2022-11-26 01:00:24,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:00:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:00:24,161 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:00:24,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:00:24,288 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 01:00:24,288 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:00:24,290 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 01:00:24,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 01:00:24,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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)] Forceful destruction successful, exit code 0 [2022-11-26 01:00:24,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:00:24,496 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 01:00:24,500 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:00:24,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:00:24 BoogieIcfgContainer [2022-11-26 01:00:24,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:00:24,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:00:24,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:00:24,547 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:00:24,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:00:23" (3/4) ... [2022-11-26 01:00:24,552 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:00:24,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:00:24,553 INFO L158 Benchmark]: Toolchain (without parser) took 3558.93ms. Allocated memory was 60.8MB in the beginning and 92.3MB in the end (delta: 31.5MB). Free memory was 36.9MB in the beginning and 62.2MB in the end (delta: -25.2MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-26 01:00:24,553 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory was 37.9MB in the beginning and 37.8MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:00:24,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1665.23ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 36.8MB in the beginning and 33.5MB in the end (delta: 3.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-11-26 01:00:24,554 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.55ms. Allocated memory is still 75.5MB. Free memory was 33.5MB in the beginning and 30.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:00:24,555 INFO L158 Benchmark]: Boogie Preprocessor took 35.15ms. Allocated memory is still 75.5MB. Free memory was 30.5MB in the beginning and 28.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 01:00:24,556 INFO L158 Benchmark]: RCFGBuilder took 477.34ms. Allocated memory is still 75.5MB. Free memory was 48.6MB in the beginning and 34.9MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 01:00:24,557 INFO L158 Benchmark]: TraceAbstraction took 1252.95ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 34.3MB in the beginning and 62.6MB in the end (delta: -28.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2022-11-26 01:00:24,557 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 62.2MB in the end (delta: 472.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:00:24,560 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 60.8MB. Free memory was 37.9MB in the beginning and 37.8MB in the end (delta: 43.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1665.23ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 36.8MB in the beginning and 33.5MB in the end (delta: 3.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.55ms. Allocated memory is still 75.5MB. Free memory was 33.5MB in the beginning and 30.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.15ms. Allocated memory is still 75.5MB. Free memory was 30.5MB in the beginning and 28.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 477.34ms. Allocated memory is still 75.5MB. Free memory was 48.6MB in the beginning and 34.9MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1252.95ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 34.3MB in the beginning and 62.6MB in the end (delta: -28.3MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 92.3MB. Free memory was 62.6MB in the beginning and 62.2MB in the end (delta: 472.0kB). 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1570] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL CWE190_Integer_Overflow__int_fgets_preinc_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE190_Integer_Overflow__int_fgets_preinc_65b_badSink; [L1553] data = 0 [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] CALL funcPtr(data) [L1578] ++data VAL [\old(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: 1578]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 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, 26 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=24occurred 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, 74 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 [2022-11-26 01:00:24,587 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f2a1a18-105d-42bd-8b9d-c61ff14a0049/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample