./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/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_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/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_5d8c8202-29af-442d-975f-4d61aa6d9be3/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 bbc64fd25d0eb5fa31633a8c76dba801bfa80f4d9146ca588047e7c404032713 --- 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 01:23:06,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:23:06,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:23:06,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:23:06,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:23:06,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:23:06,370 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:23:06,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:23:06,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:23:06,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:23:06,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:23:06,377 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:23:06,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:23:06,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:23:06,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:23:06,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:23:06,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:23:06,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:23:06,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:23:06,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:23:06,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:23:06,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:23:06,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:23:06,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:23:06,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:23:06,401 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:23:06,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:23:06,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:23:06,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:23:06,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:23:06,404 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:23:06,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:23:06,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:23:06,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:23:06,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:23:06,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:23:06,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:23:06,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:23:06,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:23:06,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:23:06,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:23:06,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-22 01:23:06,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:23:06,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:23:06,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:23:06,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:23:06,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:23:06,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:23:06,448 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:23:06,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:23:06,448 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:23:06,448 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:23:06,449 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:23:06,450 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:23:06,450 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:23:06,450 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:23:06,450 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:23:06,451 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:23:06,451 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:23:06,451 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:23:06,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:23:06,453 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:23:06,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:23:06,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:23:06,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:23:06,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:23:06,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:23:06,454 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:23:06,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:23:06,455 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:23:06,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:23:06,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:23:06,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:23:06,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:06,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:23:06,456 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:23:06,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:23:06,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:23:06,457 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:23:06,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:23:06,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:23:06,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:23:06,458 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_5d8c8202-29af-442d-975f-4d61aa6d9be3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbc64fd25d0eb5fa31633a8c76dba801bfa80f4d9146ca588047e7c404032713 [2022-11-22 01:23:06,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:23:06,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:23:06,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:23:06,771 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:23:06,772 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:23:06,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-22 01:23:09,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:23:10,329 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:23:10,332 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-22 01:23:10,360 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/data/1fe5a6323/bd18aab59cac42cfbdc3d2b5f955fba8/FLAG8b7004dcc [2022-11-22 01:23:10,379 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/data/1fe5a6323/bd18aab59cac42cfbdc3d2b5f955fba8 [2022-11-22 01:23:10,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:23:10,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:23:10,398 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:10,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:23:10,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:23:10,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:10" (1/1) ... [2022-11-22 01:23:10,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c4a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:10, skipping insertion in model container [2022-11-22 01:23:10,405 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:10" (1/1) ... [2022-11-22 01:23:10,413 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:23:10,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:23:10,882 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:23:11,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:11,444 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:23:11,480 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:23:11,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:11,790 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:23:11,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11 WrapperNode [2022-11-22 01:23:11,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:11,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:11,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:23:11,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:23:11,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,864 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2022-11-22 01:23:11,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:11,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:23:11,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:23:11,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:23:11,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,888 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,889 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:23:11,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:23:11,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:23:11,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:23:11,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (1/1) ... [2022-11-22 01:23:11,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:11,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:11,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:23:11,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:23:12,024 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-22 01:23:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-22 01:23:12,025 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-22 01:23:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:23:12,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 01:23:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:23:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:23:12,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:23:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:23:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-22 01:23:12,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:23:12,212 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:23:12,214 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:23:12,405 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:23:12,472 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:23:12,477 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:23:12,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:12 BoogieIcfgContainer [2022-11-22 01:23:12,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:23:12,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:23:12,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:23:12,497 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:23:12,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:23:10" (1/3) ... [2022-11-22 01:23:12,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55de675e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:23:12, skipping insertion in model container [2022-11-22 01:23:12,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:11" (2/3) ... [2022-11-22 01:23:12,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55de675e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:23:12, skipping insertion in model container [2022-11-22 01:23:12,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:12" (3/3) ... [2022-11-22 01:23:12,500 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-22 01:23:12,520 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:23:12,520 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-22 01:23:12,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:23:12,577 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;@7b0a29c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:23:12,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-22 01:23:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:23:12,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:23:12,592 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:12,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:12,593 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:23:12,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:12,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1877416340, now seen corresponding path program 1 times [2022-11-22 01:23:12,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:12,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634029631] [2022-11-22 01:23:12,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:12,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:12,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:12,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:12,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:12,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634029631] [2022-11-22 01:23:12,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634029631] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:12,936 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:12,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:23:12,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266316661] [2022-11-22 01:23:12,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:12,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:23:12,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:12,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:23:12,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:23:12,995 INFO L87 Difference]: Start difference. First operand has 25 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 21 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-11-22 01:23:13,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:13,078 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-11-22 01:23:13,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:23:13,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-22 01:23:13,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:13,087 INFO L225 Difference]: With dead ends: 47 [2022-11-22 01:23:13,088 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 01:23:13,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:23:13,097 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:13,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 41 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:23:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 01:23:13,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2022-11-22 01:23:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 20 states have internal predecessors, (22), 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) [2022-11-22 01:23:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-11-22 01:23:13,148 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 8 [2022-11-22 01:23:13,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:13,148 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-11-22 01:23:13,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 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) [2022-11-22 01:23:13,149 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-22 01:23:13,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 01:23:13,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:13,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:13,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:23:13,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:23:13,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:13,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1931563463, now seen corresponding path program 1 times [2022-11-22 01:23:13,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:13,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108725441] [2022-11-22 01:23:13,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:13,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:13,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:13,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:13,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:13,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108725441] [2022-11-22 01:23:13,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108725441] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:13,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:13,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:23:13,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486762791] [2022-11-22 01:23:13,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:13,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:23:13,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:13,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:23:13,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:23:13,363 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:23:13,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:13,429 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-11-22 01:23:13,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:23:13,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-22 01:23:13,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:13,431 INFO L225 Difference]: With dead ends: 30 [2022-11-22 01:23:13,431 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 01:23:13,431 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 [2022-11-22 01:23:13,433 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:13,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 50 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:23:13,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 01:23:13,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-22 01:23:13,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 25 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:23:13,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2022-11-22 01:23:13,441 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 9 [2022-11-22 01:23:13,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:13,442 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2022-11-22 01:23:13,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-22 01:23:13,442 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2022-11-22 01:23:13,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 01:23:13,443 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:13,443 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:13,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:23:13,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:23:13,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:13,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2061912339, now seen corresponding path program 1 times [2022-11-22 01:23:13,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:13,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76677799] [2022-11-22 01:23:13,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:13,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:13,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:13,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:13,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:13,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76677799] [2022-11-22 01:23:13,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76677799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:13,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:13,570 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:23:13,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240630649] [2022-11-22 01:23:13,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:13,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:23:13,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:13,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:23:13,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:23:13,573 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-22 01:23:13,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:13,603 INFO L93 Difference]: Finished difference Result 28 states and 33 transitions. [2022-11-22 01:23:13,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:23:13,604 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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 13 [2022-11-22 01:23:13,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:13,605 INFO L225 Difference]: With dead ends: 28 [2022-11-22 01:23:13,606 INFO L226 Difference]: Without dead ends: 27 [2022-11-22 01:23:13,606 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 [2022-11-22 01:23:13,608 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 13 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:13,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 34 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:23:13,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-22 01:23:13,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-22 01:23:13,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 24 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:23:13,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2022-11-22 01:23:13,615 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 13 [2022-11-22 01:23:13,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:13,615 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2022-11-22 01:23:13,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-11-22 01:23:13,616 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-22 01:23:13,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:23:13,617 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:13,617 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:13,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 01:23:13,618 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:23:13,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:13,623 INFO L85 PathProgramCache]: Analyzing trace with hash 503299072, now seen corresponding path program 1 times [2022-11-22 01:23:13,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:13,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580505256] [2022-11-22 01:23:13,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:13,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:13,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:13,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:13,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580505256] [2022-11-22 01:23:13,840 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580505256] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:23:13,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379436460] [2022-11-22 01:23:13,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:13,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:13,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:13,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:23:13,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:23:13,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:13,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:23:13,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:14,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:14,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:23:14,060 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379436460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:14,060 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 01:23:14,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-11-22 01:23:14,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364876569] [2022-11-22 01:23:14,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:14,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 01:23:14,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:14,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 01:23:14,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-22 01:23:14,063 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-22 01:23:14,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:14,099 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-22 01:23:14,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:23:14,100 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 14 [2022-11-22 01:23:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:14,101 INFO L225 Difference]: With dead ends: 38 [2022-11-22 01:23:14,101 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 01:23:14,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-22 01:23:14,103 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:14,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 35 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:23:14,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 01:23:14,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-22 01:23:14,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 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) [2022-11-22 01:23:14,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-22 01:23:14,108 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 14 [2022-11-22 01:23:14,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:14,109 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-22 01:23:14,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-11-22 01:23:14,109 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-22 01:23:14,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:23:14,110 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:14,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:14,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:14,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:14,315 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-22 01:23:14,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:14,316 INFO L85 PathProgramCache]: Analyzing trace with hash 505227011, now seen corresponding path program 1 times [2022-11-22 01:23:14,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:14,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519861400] [2022-11-22 01:23:14,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:14,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:23:14,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:23:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:23:14,384 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:23:14,385 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:23:14,386 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-22 01:23:14,388 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-22 01:23:14,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-22 01:23:14,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-22 01:23:14,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-22 01:23:14,389 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-22 01:23:14,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 01:23:14,393 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-22 01:23:14,398 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:23:14,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:23:14 BoogieIcfgContainer [2022-11-22 01:23:14,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:23:14,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:23:14,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:23:14,451 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:23:14,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:12" (3/4) ... [2022-11-22 01:23:14,455 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:23:14,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:23:14,456 INFO L158 Benchmark]: Toolchain (without parser) took 4060.10ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 131.8MB in the beginning and 114.4MB in the end (delta: 17.4MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2022-11-22 01:23:14,456 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:14,456 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1393.55ms. Allocated memory is still 161.5MB. Free memory was 131.8MB in the beginning and 121.2MB in the end (delta: 10.7MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-22 01:23:14,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.35ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 118.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:23:14,459 INFO L158 Benchmark]: Boogie Preprocessor took 28.33ms. Allocated memory is still 161.5MB. Free memory was 118.1MB in the beginning and 117.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:14,460 INFO L158 Benchmark]: RCFGBuilder took 585.94ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 101.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:23:14,462 INFO L158 Benchmark]: TraceAbstraction took 1967.65ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 100.3MB in the beginning and 115.5MB in the end (delta: -15.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-22 01:23:14,463 INFO L158 Benchmark]: Witness Printer took 4.32ms. Allocated memory is still 195.0MB. Free memory was 115.5MB in the beginning and 114.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:14,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 125.8MB. Free memory is still 95.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1393.55ms. Allocated memory is still 161.5MB. Free memory was 131.8MB in the beginning and 121.2MB in the end (delta: 10.7MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.35ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 118.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.33ms. Allocated memory is still 161.5MB. Free memory was 118.1MB in the beginning and 117.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 585.94ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 101.3MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1967.65ms. Allocated memory was 161.5MB in the beginning and 195.0MB in the end (delta: 33.6MB). Free memory was 100.3MB in the beginning and 115.5MB in the end (delta: -15.2MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * Witness Printer took 4.32ms. Allocated memory is still 195.0MB. Free memory was 115.5MB in the beginning and 114.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1559. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1579] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741831:1073741829}, argv={1073741831:1073741829}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL CWE191_Integer_Underflow__int_fgets_postdec_17_bad() [L1550] int i,j; [L1551] int data; [L1552] data = 0 [L1553] i = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, i=0] [L1553] COND TRUE i < 1 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1553] i++ VAL [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, i=1] [L1553] COND FALSE !(i < 1) [L1567] j = 0 VAL [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, i=1, j=0] [L1567] COND TRUE j < 1 [L1570] data-- VAL [data=-2147483648, 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, i=1, j=0] - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1553]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1567]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - 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 2 procedures, 25 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 160 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 90 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 70 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=2, InterpolantAutomatonStates: 16, 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, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 99 SizeOfPredicates, 1 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 8/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:23:14,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/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_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/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 bbc64fd25d0eb5fa31633a8c76dba801bfa80f4d9146ca588047e7c404032713 --- 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 01:23:17,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:23:17,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:23:17,108 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:23:17,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:23:17,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:23:17,111 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:23:17,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:23:17,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:23:17,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:23:17,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:23:17,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:23:17,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:23:17,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:23:17,121 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:23:17,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:23:17,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:23:17,125 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:23:17,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:23:17,128 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:23:17,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:23:17,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:23:17,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:23:17,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:23:17,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:23:17,138 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:23:17,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:23:17,139 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:23:17,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:23:17,141 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:23:17,141 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:23:17,142 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:23:17,143 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:23:17,144 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:23:17,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:23:17,147 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:23:17,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:23:17,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:23:17,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:23:17,150 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:23:17,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:23:17,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-22 01:23:17,196 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:23:17,196 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:23:17,196 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:23:17,197 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:23:17,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:23:17,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:23:17,198 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:23:17,198 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:23:17,198 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:23:17,198 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:23:17,199 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:23:17,199 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:23:17,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:23:17,200 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:23:17,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:23:17,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:23:17,201 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:23:17,201 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:23:17,201 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:23:17,201 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:23:17,201 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:23:17,205 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:23:17,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:23:17,206 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:23:17,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:23:17,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:23:17,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:23:17,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:23:17,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:17,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:23:17,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:23:17,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:23:17,209 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:23:17,209 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:23:17,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:23:17,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:23:17,210 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:23:17,211 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbc64fd25d0eb5fa31633a8c76dba801bfa80f4d9146ca588047e7c404032713 [2022-11-22 01:23:17,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:23:17,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:23:17,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:23:17,607 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:23:17,607 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:23:17,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-22 01:23:20,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:23:21,270 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:23:21,270 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_17_bad.i [2022-11-22 01:23:21,305 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/data/103157619/f8689694183f4d45ad03897e4785c29d/FLAGc6554a926 [2022-11-22 01:23:21,333 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d8c8202-29af-442d-975f-4d61aa6d9be3/bin/utaipan-g80aRyZoba/data/103157619/f8689694183f4d45ad03897e4785c29d [2022-11-22 01:23:21,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:23:21,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:23:21,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:21,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:23:21,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:23:21,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:21" (1/1) ... [2022-11-22 01:23:21,350 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e0cc799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:21, skipping insertion in model container [2022-11-22 01:23:21,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:21" (1/1) ... [2022-11-22 01:23:21,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:23:21,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:23:21,938 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-22 01:23:22,236 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.addIntegerBoundsCheck(CExpressionTranslator.java:1060) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CExpressionTranslator.handleBitshiftOperation(CExpressionTranslator.java:430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:834) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:727) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1126) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2446) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.TypeHandler.visit(TypeHandler.java:357) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:177) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2116) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:143) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3314) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2388) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:600) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:23:22,246 INFO L158 Benchmark]: Toolchain (without parser) took 904.19ms. Allocated memory is still 83.9MB. Free memory was 58.1MB in the beginning and 42.7MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:23:22,247 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:22,248 INFO L158 Benchmark]: CACSL2BoogieTranslator took 898.96ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 42.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 01:23:22,251 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 898.96ms. Allocated memory is still 83.9MB. Free memory was 57.9MB in the beginning and 42.7MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented. de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.BitvectorTranslation.constructOverflowCheckForBinaryBitwiseIntegerExpression(BitvectorTranslation.java:1570) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Integer overflow check for leftshift is not yet implemented.