./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba --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 131cc8ad72787fa3e13b64ab6500ecbe5863262e4aabab39c2c887dfbccea1a2 --- 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-b5237d8 [2022-11-22 00:15:28,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:15:28,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:15:28,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:15:28,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:15:28,819 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:15:28,822 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:15:28,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:15:28,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:15:28,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:15:28,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:15:28,839 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:15:28,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:15:28,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:15:28,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:15:28,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:15:28,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:15:28,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:15:28,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:15:28,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:15:28,870 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:15:28,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:15:28,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:15:28,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:15:28,882 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:15:28,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:15:28,888 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:15:28,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:15:28,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:15:28,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:15:28,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:15:28,895 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:15:28,896 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:15:28,898 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:15:28,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:15:28,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:15:28,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:15:28,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:15:28,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:15:28,905 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:15:28,906 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:15:28,907 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 00:15:28,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:15:28,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:15:28,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:15:28,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:15:28,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:15:28,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:15:28,952 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:15:28,952 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:15:28,952 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:15:28,952 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:15:28,954 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:15:28,954 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:15:28,954 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:15:28,955 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:15:28,955 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:15:28,955 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:15:28,955 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:15:28,955 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:15:28,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:15:28,957 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:15:28,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:15:28,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:15:28,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:15:28,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:15:28,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:15:28,959 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:15:28,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:15:28,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:15:28,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:15:28,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:15:28,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:15:28,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:15:28,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:15:28,962 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:15:28,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:15:28,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:15:28,962 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:15:28,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:15:28,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:15:28,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:15:28,963 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_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 131cc8ad72787fa3e13b64ab6500ecbe5863262e4aabab39c2c887dfbccea1a2 [2022-11-22 00:15:29,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:15:29,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:15:29,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:15:29,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:15:29,349 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:15:29,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_08_bad.i [2022-11-22 00:15:32,990 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:15:33,518 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:15:33,518 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_08_bad.i [2022-11-22 00:15:33,542 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/data/2f1f0c1b7/ea7594c00e4347f3b8324bbe0f9bfd9a/FLAGc0d9c18d4 [2022-11-22 00:15:33,559 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/data/2f1f0c1b7/ea7594c00e4347f3b8324bbe0f9bfd9a [2022-11-22 00:15:33,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:15:33,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:15:33,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:15:33,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:15:33,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:15:33,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:15:33" (1/1) ... [2022-11-22 00:15:33,575 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@526fd68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:33, skipping insertion in model container [2022-11-22 00:15:33,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:15:33" (1/1) ... [2022-11-22 00:15:33,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:15:33,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:15:34,239 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 00:15:35,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:15:35,293 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:15:35,327 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 00:15:35,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:15:35,589 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:15:35,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35 WrapperNode [2022-11-22 00:15:35,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:15:35,592 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:15:35,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:15:35,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:15:35,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,660 INFO L138 Inliner]: procedures = 501, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-11-22 00:15:35,660 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:15:35,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:15:35,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:15:35,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:15:35,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,693 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:15:35,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:15:35,737 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:15:35,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:15:35,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (1/1) ... [2022-11-22 00:15:35,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:15:35,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:35,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:15:35,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:15:35,864 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-22 00:15:35,865 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-22 00:15:35,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:15:35,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:15:35,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:15:35,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:15:35,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:15:35,866 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-11-22 00:15:35,867 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-11-22 00:15:35,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:15:35,867 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-22 00:15:35,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:15:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:15:36,074 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:15:36,089 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:15:36,317 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:15:36,402 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:15:36,412 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 00:15:36,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:15:36 BoogieIcfgContainer [2022-11-22 00:15:36,416 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:15:36,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:15:36,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:15:36,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:15:36,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:15:33" (1/3) ... [2022-11-22 00:15:36,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eeab6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:15:36, skipping insertion in model container [2022-11-22 00:15:36,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:15:35" (2/3) ... [2022-11-22 00:15:36,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eeab6ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:15:36, skipping insertion in model container [2022-11-22 00:15:36,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:15:36" (3/3) ... [2022-11-22 00:15:36,431 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_08_bad.i [2022-11-22 00:15:36,458 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:15:36,459 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 00:15:36,540 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:15:36,550 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;@f329ebd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:15:36,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 00:15:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 00:15:36,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 00:15:36,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:36,570 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:36,571 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:15:36,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:36,581 INFO L85 PathProgramCache]: Analyzing trace with hash 185102660, now seen corresponding path program 1 times [2022-11-22 00:15:36,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:36,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889526575] [2022-11-22 00:15:36,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:15:37,556 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:15:37,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889526575] [2022-11-22 00:15:37,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889526575] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:15:37,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197972694] [2022-11-22 00:15:37,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:37,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:15:37,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:15:37,579 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:15:37,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:15:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:15:37,733 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 00:15:37,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:15:37,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 00:15:37,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-22 00:15:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:15:37,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:15:38,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:15:38,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 1 [2022-11-22 00:15:38,217 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:15:38,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197972694] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:15:38,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1951443263] [2022-11-22 00:15:38,262 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2022-11-22 00:15:38,263 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:15:38,268 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:15:38,274 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:15:38,275 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:15:38,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:38,633 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-22 00:15:38,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-22 00:15:38,669 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:38,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:38,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:38,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 00:15:38,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:38,802 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-22 00:15:38,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-22 00:15:39,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:39,054 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-22 00:15:39,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:15:39,076 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2022-11-22 00:15:39,383 INFO L197 IcfgInterpreter]: Interpreting procedure staticReturnsTrue with input of size 118 for LOIs [2022-11-22 00:15:39,484 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 56 for LOIs [2022-11-22 00:15:39,493 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:15:42,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1951443263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:15:42,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:15:42,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5, 6, 5] total 21 [2022-11-22 00:15:42,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262527084] [2022-11-22 00:15:42,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:15:42,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 00:15:42,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:15:42,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 00:15:42,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-11-22 00:15:42,497 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 00:15:42,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:15:42,902 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-11-22 00:15:42,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 00:15:42,905 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2022-11-22 00:15:42,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:15:42,914 INFO L225 Difference]: With dead ends: 28 [2022-11-22 00:15:42,915 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 00:15:42,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2022-11-22 00:15:42,935 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:15:42,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 5 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:15:42,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 00:15:42,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 00:15:42,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 00:15:42,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-22 00:15:42,980 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 15 [2022-11-22 00:15:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:15:42,982 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-22 00:15:42,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 00:15:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-22 00:15:42,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-22 00:15:42,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:15:42,985 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:15:42,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:15:43,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-22 00:15:43,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-22 00:15:43,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:15:43,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1443215223, now seen corresponding path program 1 times [2022-11-22 00:15:43,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:15:43,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471063485] [2022-11-22 00:15:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:15:43,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:15:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:15:43,238 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:15:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:15:43,306 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:15:43,308 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:15:43,309 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-22 00:15:43,313 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-22 00:15:43,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:15:43,318 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 00:15:43,323 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:15:43,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:15:43 BoogieIcfgContainer [2022-11-22 00:15:43,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:15:43,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:15:43,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:15:43,383 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:15:43,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:15:36" (3/4) ... [2022-11-22 00:15:43,386 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 00:15:43,446 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:15:43,454 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:15:43,455 INFO L158 Benchmark]: Toolchain (without parser) took 9889.66ms. Allocated memory was 127.9MB in the beginning and 188.7MB in the end (delta: 60.8MB). Free memory was 95.2MB in the beginning and 113.9MB in the end (delta: -18.6MB). Peak memory consumption was 43.6MB. Max. memory is 16.1GB. [2022-11-22 00:15:43,455 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:15:43,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2023.81ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 94.9MB in the beginning and 120.6MB in the end (delta: -25.8MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2022-11-22 00:15:43,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.05ms. Allocated memory is still 157.3MB. Free memory was 120.6MB in the beginning and 118.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:15:43,457 INFO L158 Benchmark]: Boogie Preprocessor took 74.90ms. Allocated memory is still 157.3MB. Free memory was 118.1MB in the beginning and 116.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:15:43,457 INFO L158 Benchmark]: RCFGBuilder took 679.31ms. Allocated memory is still 157.3MB. Free memory was 116.4MB in the beginning and 101.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 00:15:43,458 INFO L158 Benchmark]: TraceAbstraction took 6962.82ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 101.3MB in the beginning and 116.0MB in the end (delta: -14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 00:15:43,458 INFO L158 Benchmark]: Witness Printer took 71.16ms. Allocated memory is still 188.7MB. Free memory was 116.0MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:15:43,460 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 127.9MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2023.81ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 94.9MB in the beginning and 120.6MB in the end (delta: -25.8MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.05ms. Allocated memory is still 157.3MB. Free memory was 120.6MB in the beginning and 118.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.90ms. Allocated memory is still 157.3MB. Free memory was 118.1MB in the beginning and 116.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 679.31ms. Allocated memory is still 157.3MB. Free memory was 116.4MB in the beginning and 101.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6962.82ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 101.3MB in the beginning and 116.0MB in the end (delta: -14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 71.16ms. Allocated memory is still 188.7MB. Free memory was 116.0MB in the beginning and 113.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1567]: integer overflow possible integer overflow possible We found a 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); [L1575] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1575] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, 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] [L1576] CALL CWE191_Integer_Underflow__int_fscanf_sub_08_bad() [L1558] int data; [L1559] data = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1564] COND TRUE staticReturnsTrue() [L1567] EXPR \read(data) VAL [\read(data)=-2147483648, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] data - 1 VAL [\read(data)=-2147483648, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 109 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 5 mSDtfsCounter, 109 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 2 QuantifiedInterpolants, 129 SizeOfPredicates, 11 NumberOfNonLiveVariables, 123 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 3/6 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: OVERALL_TIME: 1.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME: 0.6s, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 25, TOOLS_QUANTIFIERELIM_TIME: 0.9s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 40, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 7, DOMAIN_JOIN_TIME: 0.2s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 130, DAG_COMPRESSION_RETAINED_NODES: 43, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 00:15:43,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_000a923a-36a5-4f00-8717-81c8aedb52f9/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)