./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW --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 4b84ec9c4240a9e8f048ce34ef067d99f85bbb79ddb0d0e3fb400f546d1c393e --- 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-4e7fbc6 [2022-11-23 15:40:48,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:40:48,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:40:48,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:40:48,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:40:48,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:40:48,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:40:48,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:40:48,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:40:48,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:40:48,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:40:48,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:40:48,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:40:48,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:40:48,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:40:48,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:40:48,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:40:48,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:40:48,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:40:48,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:40:48,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:40:48,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:40:48,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:40:48,906 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:40:48,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:40:48,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:40:48,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:40:48,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:40:48,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:40:48,923 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:40:48,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:40:48,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:40:48,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:40:48,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:40:48,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:40:48,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:40:48,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:40:48,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:40:48,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:40:48,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:40:48,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:40:48,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:40:48,981 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:40:48,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:40:48,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:40:48,982 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:40:48,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:40:48,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:40:48,984 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:40:48,984 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:40:48,984 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:40:48,984 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:40:48,986 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:40:48,986 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:40:48,986 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:40:48,987 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:40:48,987 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:40:48,987 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:40:48,987 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:40:48,988 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:40:48,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:40:48,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:40:48,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:40:48,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:40:48,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:40:48,990 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:40:48,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:40:48,990 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:40:48,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:40:48,991 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:40:48,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:40:48,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:40:48,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:40:48,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:40:48,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:40:48,993 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:40:48,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:40:48,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:40:48,993 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:40:48,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:40:48,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:40:48,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:40:48,994 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_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b84ec9c4240a9e8f048ce34ef067d99f85bbb79ddb0d0e3fb400f546d1c393e [2022-11-23 15:40:49,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:40:49,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:40:49,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:40:49,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:40:49,305 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:40:49,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i [2022-11-23 15:40:52,545 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:40:52,917 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:40:52,917 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i [2022-11-23 15:40:52,938 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/data/7ecd9a622/988370f813cc45ed8c58c09632b78dc0/FLAGbc20d8de7 [2022-11-23 15:40:52,958 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/data/7ecd9a622/988370f813cc45ed8c58c09632b78dc0 [2022-11-23 15:40:52,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:40:52,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:40:52,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:40:52,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:40:52,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:40:52,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:52" (1/1) ... [2022-11-23 15:40:52,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4724c1e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:52, skipping insertion in model container [2022-11-23 15:40:52,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:52" (1/1) ... [2022-11-23 15:40:52,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:40:53,038 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:40:53,387 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:40:54,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:40:54,039 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:40:54,060 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:40:54,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:40:54,391 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:40:54,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54 WrapperNode [2022-11-23 15:40:54,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:40:54,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:40:54,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:40:54,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:40:54,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,497 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 58 [2022-11-23 15:40:54,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:40:54,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:40:54,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:40:54,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:40:54,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,542 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,543 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,545 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:40:54,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:40:54,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:40:54,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:40:54,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (1/1) ... [2022-11-23 15:40:54,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:40:54,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:40:54,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:40:54,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:40:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 15:40:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:40:54,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:40:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:40:54,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:40:54,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:40:54,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:40:54,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:40:54,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:40:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:40:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:40:54,860 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:40:54,862 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:40:55,016 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:40:55,060 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:40:55,061 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:40:55,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:55 BoogieIcfgContainer [2022-11-23 15:40:55,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:40:55,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:40:55,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:40:55,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:40:55,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:40:52" (1/3) ... [2022-11-23 15:40:55,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c014a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:55, skipping insertion in model container [2022-11-23 15:40:55,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:54" (2/3) ... [2022-11-23 15:40:55,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c014a4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:55, skipping insertion in model container [2022-11-23 15:40:55,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:55" (3/3) ... [2022-11-23 15:40:55,072 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i [2022-11-23 15:40:55,092 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:40:55,093 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:40:55,143 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:40:55,150 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;@3476306c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:40:55,151 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:40:55,155 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:40:55,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 15:40:55,162 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:40:55,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:40:55,164 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:40:55,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:40:55,170 INFO L85 PathProgramCache]: Analyzing trace with hash 63356454, now seen corresponding path program 1 times [2022-11-23 15:40:55,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:40:55,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025905224] [2022-11-23 15:40:55,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:40:55,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:40:55,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:40:55,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:40:55,579 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:40:55,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025905224] [2022-11-23 15:40:55,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025905224] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:40:55,580 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:40:55,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:40:55,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579870270] [2022-11-23 15:40:55,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:40:55,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:40:55,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:40:55,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:40:55,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:40:55,626 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:40:55,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:40:55,675 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-11-23 15:40:55,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:40:55,682 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-23 15:40:55,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:40:55,707 INFO L225 Difference]: With dead ends: 21 [2022-11-23 15:40:55,707 INFO L226 Difference]: Without dead ends: 12 [2022-11-23 15:40:55,710 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:40:55,714 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:40:55,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 24 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:40:55,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-23 15:40:55,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-23 15:40:55,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 9 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:40:55,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-23 15:40:55,760 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2022-11-23 15:40:55,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:40:55,762 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-23 15:40:55,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:40:55,762 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-23 15:40:55,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 15:40:55,763 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:40:55,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:40:55,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:40:55,764 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:40:55,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:40:55,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1964050131, now seen corresponding path program 1 times [2022-11-23 15:40:55,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:40:55,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278611539] [2022-11-23 15:40:55,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:40:55,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:40:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:40:55,846 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:40:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:40:55,890 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:40:55,890 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:40:55,892 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:40:55,894 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:40:55,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:40:55,899 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:40:55,904 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:40:55,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:40:55 BoogieIcfgContainer [2022-11-23 15:40:55,936 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:40:55,937 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:40:55,937 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:40:55,937 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:40:55,938 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:55" (3/4) ... [2022-11-23 15:40:55,941 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:40:55,941 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:40:55,942 INFO L158 Benchmark]: Toolchain (without parser) took 2974.59ms. Allocated memory is still 178.3MB. Free memory was 133.2MB in the beginning and 80.7MB in the end (delta: 52.4MB). Peak memory consumption was 55.1MB. Max. memory is 16.1GB. [2022-11-23 15:40:55,943 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 140.5MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:40:55,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1419.39ms. Allocated memory is still 178.3MB. Free memory was 132.6MB in the beginning and 135.3MB in the end (delta: -2.6MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. [2022-11-23 15:40:55,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 105.02ms. Allocated memory is still 178.3MB. Free memory was 135.3MB in the beginning and 132.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:40:55,944 INFO L158 Benchmark]: Boogie Preprocessor took 49.15ms. Allocated memory is still 178.3MB. Free memory was 132.1MB in the beginning and 130.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:40:55,945 INFO L158 Benchmark]: RCFGBuilder took 514.96ms. Allocated memory is still 178.3MB. Free memory was 130.0MB in the beginning and 115.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:40:55,945 INFO L158 Benchmark]: TraceAbstraction took 870.81ms. Allocated memory is still 178.3MB. Free memory was 114.3MB in the beginning and 81.8MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-23 15:40:55,946 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 178.3MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:40:55,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 140.5MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1419.39ms. Allocated memory is still 178.3MB. Free memory was 132.6MB in the beginning and 135.3MB in the end (delta: -2.6MB). Peak memory consumption was 69.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 105.02ms. Allocated memory is still 178.3MB. Free memory was 135.3MB in the beginning and 132.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.15ms. Allocated memory is still 178.3MB. Free memory was 132.1MB in the beginning and 130.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 514.96ms. Allocated memory is still 178.3MB. Free memory was 130.0MB in the beginning and 115.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 870.81ms. Allocated memory is still 178.3MB. Free memory was 114.3MB in the beginning and 81.8MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 178.3MB. Free memory was 81.8MB in the beginning and 80.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565. 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); [L1577] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [#in~argv={1073741828:1073741827}, argc=1073741826, argv={1073741828:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=1073741826] [L1578] CALL CWE190_Integer_Overflow__int_fgets_multiply_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL funcPtr(data) [L1550] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=1073741824] [L1552] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=1073741824] - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 24 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:40:55,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW --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 4b84ec9c4240a9e8f048ce34ef067d99f85bbb79ddb0d0e3fb400f546d1c393e --- 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-4e7fbc6 [2022-11-23 15:40:58,562 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:40:58,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:40:58,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:40:58,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:40:58,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:40:58,592 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:40:58,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:40:58,596 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:40:58,597 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:40:58,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:40:58,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:40:58,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:40:58,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:40:58,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:40:58,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:40:58,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:40:58,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:40:58,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:40:58,611 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:40:58,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:40:58,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:40:58,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:40:58,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:40:58,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:40:58,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:40:58,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:40:58,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:40:58,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:40:58,625 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:40:58,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:40:58,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:40:58,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:40:58,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:40:58,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:40:58,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:40:58,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:40:58,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:40:58,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:40:58,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:40:58,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:40:58,663 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:40:58,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:40:58,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:40:58,689 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:40:58,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:40:58,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:40:58,691 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:40:58,691 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:40:58,691 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:40:58,692 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:40:58,692 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:40:58,692 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:40:58,692 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:40:58,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:40:58,693 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:40:58,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:40:58,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:40:58,694 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:40:58,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:40:58,695 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:40:58,695 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:40:58,695 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:40:58,696 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:40:58,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:40:58,696 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:40:58,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:40:58,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:40:58,697 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:40:58,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:40:58,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:40:58,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:40:58,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:40:58,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:40:58,699 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:40:58,699 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:40:58,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:40:58,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:40:58,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:40:58,700 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_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b84ec9c4240a9e8f048ce34ef067d99f85bbb79ddb0d0e3fb400f546d1c393e [2022-11-23 15:40:59,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:40:59,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:40:59,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:40:59,170 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:40:59,171 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:40:59,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i [2022-11-23 15:41:02,370 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:41:02,879 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:41:02,880 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i [2022-11-23 15:41:02,915 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/data/3f1179701/c8164d645df34ba6ab11be8f6b4c21a0/FLAGf203acb37 [2022-11-23 15:41:02,943 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/data/3f1179701/c8164d645df34ba6ab11be8f6b4c21a0 [2022-11-23 15:41:02,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:41:02,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:41:02,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:41:02,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:41:02,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:41:02,959 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:02" (1/1) ... [2022-11-23 15:41:02,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5abaf7e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:02, skipping insertion in model container [2022-11-23 15:41:02,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:41:02" (1/1) ... [2022-11-23 15:41:02,969 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:41:03,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:41:03,492 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:41:04,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:41:04,088 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:41:04,109 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:41:04,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:41:04,293 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:41:04,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04 WrapperNode [2022-11-23 15:41:04,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:41:04,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:41:04,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:41:04,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:41:04,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,388 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2022-11-23 15:41:04,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:41:04,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:41:04,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:41:04,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:41:04,400 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,404 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,420 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:41:04,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:41:04,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:41:04,427 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:41:04,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (1/1) ... [2022-11-23 15:41:04,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:41:04,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:41:04,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:41:04,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:41:04,533 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 15:41:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:41:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:41:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:41:04,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:41:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:41:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:41:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:41:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:41:04,535 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:41:04,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-23 15:41:04,717 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:41:04,724 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:41:04,925 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:41:04,933 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:41:04,934 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:41:04,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:04 BoogieIcfgContainer [2022-11-23 15:41:04,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:41:04,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:41:04,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:41:04,943 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:41:04,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:41:02" (1/3) ... [2022-11-23 15:41:04,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751ca84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:04, skipping insertion in model container [2022-11-23 15:41:04,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:41:04" (2/3) ... [2022-11-23 15:41:04,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@751ca84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:41:04, skipping insertion in model container [2022-11-23 15:41:04,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:04" (3/3) ... [2022-11-23 15:41:04,947 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_44_bad.i [2022-11-23 15:41:04,971 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:41:04,971 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:41:05,027 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:41:05,035 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;@23775465, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:41:05,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:41:05,041 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:41:05,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 15:41:05,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:41:05,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:41:05,051 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:41:05,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:41:05,058 INFO L85 PathProgramCache]: Analyzing trace with hash -83245182, now seen corresponding path program 1 times [2022-11-23 15:41:05,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:41:05,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289446578] [2022-11-23 15:41:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:41:05,081 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 [2022-11-23 15:41:05,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:41:05,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:41:05,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:41:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:41:05,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 15:41:05,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:41:05,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:41:05,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:41:05,339 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 15:41:05,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289446578] [2022-11-23 15:41:05,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289446578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:41:05,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:41:05,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:41:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719162909] [2022-11-23 15:41:05,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:41:05,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:41:05,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 15:41:05,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:41:05,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:41:05,382 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:41:05,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:41:05,422 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-23 15:41:05,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:41:05,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-23 15:41:05,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:41:05,433 INFO L225 Difference]: With dead ends: 33 [2022-11-23 15:41:05,434 INFO L226 Difference]: Without dead ends: 15 [2022-11-23 15:41:05,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:41:05,441 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:41:05,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 55 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:41:05,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-23 15:41:05,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-23 15:41:05,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:41:05,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-23 15:41:05,480 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-23 15:41:05,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:41:05,481 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-23 15:41:05,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:41:05,482 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-23 15:41:05,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 15:41:05,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:41:05,484 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:41:05,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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)] Ended with exit code 0 [2022-11-23 15:41:05,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:41:05,704 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:41:05,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:41:05,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1714366711, now seen corresponding path program 1 times [2022-11-23 15:41:05,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:41:05,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [764118711] [2022-11-23 15:41:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:41:05,706 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 [2022-11-23 15:41:05,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:41:05,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 15:41:05,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:41:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:41:05,920 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:41:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:41:06,004 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:41:06,004 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:41:06,006 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:41:06,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:41:06,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:41:06,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 15:41:06,215 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 15:41:06,219 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:41:06,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:41:06 BoogieIcfgContainer [2022-11-23 15:41:06,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:41:06,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:41:06,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:41:06,252 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:41:06,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:41:04" (3/4) ... [2022-11-23 15:41:06,256 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:41:06,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:41:06,257 INFO L158 Benchmark]: Toolchain (without parser) took 3307.03ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 62.3MB in the beginning and 81.9MB in the end (delta: -19.6MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2022-11-23 15:41:06,258 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 88.1MB. Free memory was 66.7MB in the beginning and 66.5MB in the end (delta: 144.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:41:06,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1340.43ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 62.3MB in the beginning and 96.1MB in the end (delta: -33.8MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-11-23 15:41:06,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.47ms. Allocated memory is still 132.1MB. Free memory was 96.1MB in the beginning and 93.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:41:06,260 INFO L158 Benchmark]: Boogie Preprocessor took 36.64ms. Allocated memory is still 132.1MB. Free memory was 93.3MB in the beginning and 91.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:41:06,260 INFO L158 Benchmark]: RCFGBuilder took 509.85ms. Allocated memory is still 132.1MB. Free memory was 91.3MB in the beginning and 76.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 15:41:06,261 INFO L158 Benchmark]: TraceAbstraction took 1312.24ms. Allocated memory is still 132.1MB. Free memory was 76.0MB in the beginning and 82.4MB in the end (delta: -6.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:41:06,261 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 132.1MB. Free memory was 82.4MB in the beginning and 81.9MB in the end (delta: 492.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:41:06,264 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 88.1MB. Free memory was 66.7MB in the beginning and 66.5MB in the end (delta: 144.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1340.43ms. Allocated memory was 88.1MB in the beginning and 132.1MB in the end (delta: 44.0MB). Free memory was 62.3MB in the beginning and 96.1MB in the end (delta: -33.8MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.47ms. Allocated memory is still 132.1MB. Free memory was 96.1MB in the beginning and 93.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.64ms. Allocated memory is still 132.1MB. Free memory was 93.3MB in the beginning and 91.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 509.85ms. Allocated memory is still 132.1MB. Free memory was 91.3MB in the beginning and 76.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1312.24ms. Allocated memory is still 132.1MB. Free memory was 76.0MB in the beginning and 82.4MB in the end (delta: -6.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 132.1MB. Free memory was 82.4MB in the beginning and 81.9MB in the end (delta: 492.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1565. 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] [L1577] CALL printLine("Calling bad()...") VAL [#in~line={4:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1577] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=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, unknown-#in~argc-unknown=12] [L1578] CALL CWE190_Integer_Overflow__int_fgets_multiply_44_bad() [L1558] int data; [L1559] void (*funcPtr) (int) = badSink; [L1560] data = 0 [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1563] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1565] data = atoi(inputBuffer) [L1562] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1572] CALL funcPtr(data) [L1550] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=1073741824] [L1552] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~data-unknown=1073741824] - UnprovableResult [Line: 1552]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 75 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:41:06,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af64286-993d-47d3-b60c-31f11c6b94a3/bin/utaipan-Q6hlc19bkW/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