./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_02_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b 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_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_02_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS --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 8946f9683e166e1319c427f6cd825c20dc4714ebc63edcbf7c6f538a1d154450 --- 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-8393723 [2022-11-19 08:05:32,974 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:05:32,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:05:32,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:05:32,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:05:33,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:05:33,001 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:05:33,003 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:05:33,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:05:33,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:05:33,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:05:33,009 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:05:33,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:05:33,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:05:33,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:05:33,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:05:33,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:05:33,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:05:33,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:05:33,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:05:33,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:05:33,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:05:33,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:05:33,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:05:33,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:05:33,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:05:33,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:05:33,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:05:33,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:05:33,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:05:33,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:05:33,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:05:33,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:05:33,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:05:33,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:05:33,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:05:33,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:05:33,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:05:33,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:05:33,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:05:33,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:05:33,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-19 08:05:33,070 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:05:33,071 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:05:33,071 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:05:33,071 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:05:33,072 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:05:33,072 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:05:33,073 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:05:33,073 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:05:33,073 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:05:33,074 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:05:33,074 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:05:33,074 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:05:33,074 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:05:33,075 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:05:33,075 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:05:33,075 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:05:33,076 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:05:33,076 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:05:33,077 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:05:33,077 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 08:05:33,077 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:05:33,078 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:05:33,078 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:05:33,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:05:33,079 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:05:33,079 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 08:05:33,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:05:33,079 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:05:33,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:05:33,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:05:33,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:05:33,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:33,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:05:33,081 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:05:33,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:05:33,082 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:05:33,082 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:05:33,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:05:33,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:05:33,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:05:33,083 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_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8946f9683e166e1319c427f6cd825c20dc4714ebc63edcbf7c6f538a1d154450 [2022-11-19 08:05:33,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:05:33,378 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:05:33,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:05:33,383 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:05:33,384 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:05:33,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_02_bad.i [2022-11-19 08:05:33,474 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/data/22f126f10/4f98995ec0874baba06198a6ca28b265/FLAG63b004bc0 [2022-11-19 08:05:34,107 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:05:34,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_postdec_02_bad.i [2022-11-19 08:05:34,131 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/data/22f126f10/4f98995ec0874baba06198a6ca28b265/FLAG63b004bc0 [2022-11-19 08:05:34,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/data/22f126f10/4f98995ec0874baba06198a6ca28b265 [2022-11-19 08:05:34,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:05:34,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:05:34,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:34,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:05:34,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:05:34,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:34" (1/1) ... [2022-11-19 08:05:34,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15e56d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:34, skipping insertion in model container [2022-11-19 08:05:34,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:05:34" (1/1) ... [2022-11-19 08:05:34,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:05:34,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:05:34,783 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-19 08:05:35,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:35,247 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:05:35,272 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-19 08:05:35,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:05:35,473 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:05:35,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35 WrapperNode [2022-11-19 08:05:35,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:05:35,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:05:35,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:05:35,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:05:35,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,539 INFO L138 Inliner]: procedures = 499, calls = 61, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 49 [2022-11-19 08:05:35,539 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:05:35,540 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:05:35,540 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:05:35,541 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:05:35,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:05:35,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:05:35,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:05:35,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:05:35,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (1/1) ... [2022-11-19 08:05:35,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:05:35,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:05:35,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:05:35,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:05:35,711 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-19 08:05:35,712 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-19 08:05:35,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:05:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:05:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:05:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:05:35,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:05:35,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:05:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-19 08:05:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:05:35,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:05:35,952 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:05:35,954 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:05:36,091 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:05:36,170 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:05:36,170 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 08:05:36,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:36 BoogieIcfgContainer [2022-11-19 08:05:36,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:05:36,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:05:36,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:05:36,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:05:36,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:05:34" (1/3) ... [2022-11-19 08:05:36,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2f3420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:36, skipping insertion in model container [2022-11-19 08:05:36,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:05:35" (2/3) ... [2022-11-19 08:05:36,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d2f3420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:05:36, skipping insertion in model container [2022-11-19 08:05:36,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:36" (3/3) ... [2022-11-19 08:05:36,196 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_postdec_02_bad.i [2022-11-19 08:05:36,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:05:36,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 08:05:36,299 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:05:36,311 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;@7d48a000, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:05:36,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 08:05:36,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) [2022-11-19 08:05:36,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-19 08:05:36,324 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:36,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:36,325 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-19 08:05:36,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:36,331 INFO L85 PathProgramCache]: Analyzing trace with hash 782261925, now seen corresponding path program 1 times [2022-11-19 08:05:36,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:36,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061995025] [2022-11-19 08:05:36,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:36,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:36,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:05:36,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:05:36,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:05:36,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061995025] [2022-11-19 08:05:36,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061995025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:05:36,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:05:36,913 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:05:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45600238] [2022-11-19 08:05:36,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:05:36,925 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:05:36,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:05:36,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:05:36,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:05:36,982 INFO L87 Difference]: Start difference. First operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-19 08:05:37,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:05:37,111 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-11-19 08:05:37,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:05:37,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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 7 [2022-11-19 08:05:37,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:05:37,123 INFO L225 Difference]: With dead ends: 20 [2022-11-19 08:05:37,123 INFO L226 Difference]: Without dead ends: 9 [2022-11-19 08:05:37,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:05:37,130 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:05:37,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 12 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:05:37,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-19 08:05:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-19 08:05:37,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-19 08:05:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2022-11-19 08:05:37,162 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2022-11-19 08:05:37,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:05:37,162 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2022-11-19 08:05:37,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 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) [2022-11-19 08:05:37,163 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2022-11-19 08:05:37,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:05:37,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:05:37,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:05:37,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:05:37,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-19 08:05:37,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:05:37,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1519684046, now seen corresponding path program 1 times [2022-11-19 08:05:37,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:05:37,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238255326] [2022-11-19 08:05:37,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:05:37,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:05:37,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:05:37,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:05:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:05:37,231 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:05:37,231 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:05:37,234 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-19 08:05:37,236 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-19 08:05:37,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:05:37,240 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-19 08:05:37,245 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:05:37,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:05:37 BoogieIcfgContainer [2022-11-19 08:05:37,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:05:37,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:05:37,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:05:37,277 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:05:37,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:05:36" (3/4) ... [2022-11-19 08:05:37,281 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-19 08:05:37,325 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:05:37,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:05:37,326 INFO L158 Benchmark]: Toolchain (without parser) took 3032.18ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 61.2MB in the beginning and 76.0MB in the end (delta: -14.8MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-11-19 08:05:37,327 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 68.4MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:05:37,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1178.83ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 60.9MB in the beginning and 96.6MB in the end (delta: -35.7MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-11-19 08:05:37,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.63ms. Allocated memory is still 132.1MB. Free memory was 96.6MB in the beginning and 93.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:05:37,329 INFO L158 Benchmark]: Boogie Preprocessor took 31.86ms. Allocated memory is still 132.1MB. Free memory was 93.7MB in the beginning and 92.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:05:37,330 INFO L158 Benchmark]: RCFGBuilder took 609.89ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 77.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-19 08:05:37,330 INFO L158 Benchmark]: TraceAbstraction took 1088.16ms. Allocated memory is still 132.1MB. Free memory was 76.9MB in the beginning and 78.1MB in the end (delta: -1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:05:37,331 INFO L158 Benchmark]: Witness Printer took 48.59ms. Allocated memory is still 132.1MB. Free memory was 78.1MB in the beginning and 76.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:05:37,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory was 68.5MB in the beginning and 68.4MB in the end (delta: 28.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1178.83ms. Allocated memory was 98.6MB in the beginning and 132.1MB in the end (delta: 33.6MB). Free memory was 60.9MB in the beginning and 96.6MB in the end (delta: -35.7MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.63ms. Allocated memory is still 132.1MB. Free memory was 96.6MB in the beginning and 93.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.86ms. Allocated memory is still 132.1MB. Free memory was 93.7MB in the beginning and 92.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 609.89ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 77.7MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1088.16ms. Allocated memory is still 132.1MB. Free memory was 76.9MB in the beginning and 78.1MB in the end (delta: -1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.59ms. Allocated memory is still 132.1MB. Free memory was 78.1MB in the beginning and 76.0MB 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: 1559]: integer overflow possible integer overflow possible We found a FailurePath: [L1525] int globalTrue = 1; [L1547] char** globalArgv = ((void *)0); [L1526] int globalFalse = 0; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1546] int globalArgc = 0; [L1522] const int GLOBAL_CONST_TRUE = 1; [L1527] int globalFive = 5; [L1568] 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) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=1073741827, argc=1073741827, argv={1073741829:1073741828}, argv={1073741829:1073741828}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_fscanf_postdec_02_bad() [L1550] int data; [L1551] data = 0 [L1559] EXPR \read(data) [L1559] data-- VAL [\read(data)=-2147483648, data={5:0}, data--=-2147483648, 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: 1559]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 4 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 proved your program to be incorrect! [2022-11-19 08:05:37,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_295b7b48-b5a8-4509-a8be-4c7b59a0dd57/bin/utaipan-I9t0OCRTmS/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)