./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/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_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/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 32bit --witnessprinter.graph.data.programhash 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 --- 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 01:44:58,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:44:58,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:44:58,064 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:44:58,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:44:58,068 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:44:58,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:44:58,074 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:44:58,076 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:44:58,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:44:58,082 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:44:58,083 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:44:58,083 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:44:58,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:44:58,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:44:58,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:44:58,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:44:58,087 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:44:58,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:44:58,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:44:58,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:44:58,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:44:58,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:44:58,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:44:58,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:44:58,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:44:58,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:44:58,119 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:44:58,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:44:58,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:44:58,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:44:58,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:44:58,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:44:58,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:44:58,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:44:58,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:44:58,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:44:58,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:44:58,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:44:58,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:44:58,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:44:58,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:44:58,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:44:58,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:44:58,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:44:58,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:44:58,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:44:58,164 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:44:58,164 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:44:58,164 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:44:58,165 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:44:58,165 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:44:58,165 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:44:58,165 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:44:58,166 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:44:58,166 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:44:58,166 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:44:58,166 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:44:58,167 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:44:58,167 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:44:58,168 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:44:58,168 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:44:58,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:44:58,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:44:58,169 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:44:58,169 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:44:58,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:44:58,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:44:58,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:44:58,170 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:44:58,170 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:44:58,170 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:44:58,171 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:44:58,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:44:58,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:44:58,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:44:58,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:44:58,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:44:58,173 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:44:58,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:44:58,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:44:58,174 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:44:58,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:44:58,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:44:58,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:44:58,175 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_dd484924-09d8-4f62-956a-5a45c31b58a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05f1ed1f4f014b7e58c65c643f68ece5abfd718428c23bf2bab82914d3413304 [2022-11-22 01:44:58,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:44:58,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:44:58,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:44:58,532 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:44:58,532 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:44:58,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-22 01:45:01,679 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:45:02,269 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:45:02,270 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-22 01:45:02,315 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/data/b361a153f/d66ed2bcf82649d9b5887fd9349005aa/FLAG74c61f749 [2022-11-22 01:45:02,333 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/data/b361a153f/d66ed2bcf82649d9b5887fd9349005aa [2022-11-22 01:45:02,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:45:02,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:45:02,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:45:02,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:45:02,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:45:02,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:02" (1/1) ... [2022-11-22 01:45:02,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435a2bf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:02, skipping insertion in model container [2022-11-22 01:45:02,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:45:02" (1/1) ... [2022-11-22 01:45:02,357 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:45:02,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:45:02,873 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-11-22 01:45:07,788 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 01:45:08,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:45:08,614 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:45:08,647 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i[5469,5482] [2022-11-22 01:45:09,130 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 01:45:09,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:45:09,705 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:45:09,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09 WrapperNode [2022-11-22 01:45:09,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:45:09,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:45:09,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:45:09,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:45:09,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,886 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 16, statements flattened = 286 [2022-11-22 01:45:09,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:45:09,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:45:09,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:45:09,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:45:09,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,968 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:09,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:45:09,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:45:09,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:45:09,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:45:09,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (1/1) ... [2022-11-22 01:45:10,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:45:10,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:45:10,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:45:10,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:45:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:45:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 01:45:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-22 01:45:10,077 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_unlocked_ioctl [2022-11-22 01:45:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:45:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:45:10,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:45:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 01:45:10,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 01:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-22 01:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 01:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-22 01:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 01:45:10,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:45:10,079 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-22 01:45:10,079 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-22 01:45:10,080 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 01:45:10,649 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:45:10,652 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:45:11,104 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:45:11,139 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:45:11,139 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-22 01:45:11,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:45:11 BoogieIcfgContainer [2022-11-22 01:45:11,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:45:11,144 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:45:11,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:45:11,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:45:11,148 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:45:02" (1/3) ... [2022-11-22 01:45:11,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d773d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:45:11, skipping insertion in model container [2022-11-22 01:45:11,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:45:09" (2/3) ... [2022-11-22 01:45:11,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d773d03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:45:11, skipping insertion in model container [2022-11-22 01:45:11,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:45:11" (3/3) ... [2022-11-22 01:45:11,151 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_nvram_unlocked_ioctl.i [2022-11-22 01:45:11,160 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 01:45:11,171 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:45:11,171 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:45:11,171 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 01:45:11,317 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 01:45:11,386 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 01:45:11,418 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 325 places, 329 transitions, 674 flow [2022-11-22 01:45:11,429 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 325 places, 329 transitions, 674 flow [2022-11-22 01:45:11,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 325 places, 329 transitions, 674 flow [2022-11-22 01:45:11,562 INFO L130 PetriNetUnfolder]: 11/327 cut-off events. [2022-11-22 01:45:11,562 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 01:45:11,570 INFO L83 FinitePrefix]: Finished finitePrefix Result has 336 conditions, 327 events. 11/327 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 294 event pairs, 0 based on Foata normal form. 0/312 useless extension candidates. Maximal degree in co-relation 253. Up to 5 conditions per place. [2022-11-22 01:45:11,576 INFO L119 LiptonReduction]: Number of co-enabled transitions 7758 [2022-11-22 01:47:11,263 WARN L233 SmtUtils]: Spent 31.33s on a formula simplification that was a NOOP. DAG size: 494 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:47:34,291 WARN L233 SmtUtils]: Spent 23.01s on a formula simplification that was a NOOP. DAG size: 422 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:47:54,201 WARN L233 SmtUtils]: Spent 19.91s on a formula simplification that was a NOOP. DAG size: 497 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:48:20,883 WARN L233 SmtUtils]: Spent 26.67s on a formula simplification that was a NOOP. DAG size: 425 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:51:13,267 WARN L233 SmtUtils]: Spent 2.87m on a formula simplification. DAG size of input: 521 DAG size of output: 517 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:52:56,980 WARN L233 SmtUtils]: Spent 1.73m on a formula simplification that was a NOOP. DAG size: 505 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:56:49,347 WARN L233 SmtUtils]: Spent 3.87m on a formula simplification. DAG size of input: 532 DAG size of output: 528 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:58:12,206 WARN L233 SmtUtils]: Spent 1.38m on a formula simplification that was a NOOP. DAG size: 516 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 01:58:12,210 INFO L134 LiptonReduction]: Checked pairs total: 8478 [2022-11-22 01:58:12,210 INFO L136 LiptonReduction]: Total number of compositions: 372 [2022-11-22 01:58:12,218 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 22 transitions, 60 flow [2022-11-22 01:58:12,235 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 48 states, 44 states have (on average 2.022727272727273) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:12,253 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:58:12,258 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;@1547d394, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:58:12,258 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-22 01:58:12,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 44 states have (on average 2.022727272727273) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:12,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:58:12,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:12,267 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:58:12,268 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-22 01:58:12,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1180622606, now seen corresponding path program 1 times [2022-11-22 01:58:12,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:12,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388569736] [2022-11-22 01:58:12,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:12,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:12,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:58:13,515 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 01:58:13,515 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:58:13,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388569736] [2022-11-22 01:58:13,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388569736] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:13,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:13,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 01:58:13,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923645589] [2022-11-22 01:58:13,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:13,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:58:13,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:58:13,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:58:13,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:58:13,555 INFO L87 Difference]: Start difference. First operand has 48 states, 44 states have (on average 2.022727272727273) internal successors, (89), 47 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:13,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:58:13,803 INFO L93 Difference]: Finished difference Result 40 states and 72 transitions. [2022-11-22 01:58:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:58:13,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:58:13,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:58:13,815 INFO L225 Difference]: With dead ends: 40 [2022-11-22 01:58:13,815 INFO L226 Difference]: Without dead ends: 40 [2022-11-22 01:58:13,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 01:58:13,825 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:58:13,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:58:13,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-22 01:58:13,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-22 01:58:13,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.945945945945946) internal successors, (72), 39 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:13,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 72 transitions. [2022-11-22 01:58:13,869 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 72 transitions. Word has length 5 [2022-11-22 01:58:13,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:58:13,875 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 72 transitions. [2022-11-22 01:58:13,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:58:13,880 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 72 transitions. [2022-11-22 01:58:13,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:58:13,881 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:58:13,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:58:13,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:58:13,884 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-22 01:58:13,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:58:13,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1180622607, now seen corresponding path program 1 times [2022-11-22 01:58:13,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:58:13,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899217009] [2022-11-22 01:58:13,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:58:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:58:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:58:14,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:58:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:58:14,185 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:58:14,191 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:58:14,195 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-22 01:58:14,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-11-22 01:58:14,197 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-11-22 01:58:14,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-22 01:58:14,199 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-22 01:58:14,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-22 01:58:14,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-22 01:58:14,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-22 01:58:14,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-22 01:58:14,201 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-22 01:58:14,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:58:14,204 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 01:58:14,210 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 01:58:14,210 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:58:14,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:58:14 BasicIcfg [2022-11-22 01:58:14,292 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:58:14,292 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:58:14,293 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:58:14,293 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:58:14,294 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:45:11" (3/4) ... [2022-11-22 01:58:14,296 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 01:58:14,390 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:58:14,390 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:58:14,391 INFO L158 Benchmark]: Toolchain (without parser) took 792052.62ms. Allocated memory was 180.4MB in the beginning and 323.0MB in the end (delta: 142.6MB). Free memory was 125.3MB in the beginning and 82.0MB in the end (delta: 43.4MB). Peak memory consumption was 188.1MB. Max. memory is 16.1GB. [2022-11-22 01:58:14,391 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:58:14,391 INFO L158 Benchmark]: CACSL2BoogieTranslator took 7364.35ms. Allocated memory was 180.4MB in the beginning and 268.4MB in the end (delta: 88.1MB). Free memory was 124.9MB in the beginning and 187.1MB in the end (delta: -62.2MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. [2022-11-22 01:58:14,391 INFO L158 Benchmark]: Boogie Procedure Inliner took 186.13ms. Allocated memory is still 268.4MB. Free memory was 187.1MB in the beginning and 178.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 01:58:14,392 INFO L158 Benchmark]: Boogie Preprocessor took 97.18ms. Allocated memory is still 268.4MB. Free memory was 178.7MB in the beginning and 174.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:58:14,392 INFO L158 Benchmark]: RCFGBuilder took 1150.89ms. Allocated memory is still 268.4MB. Free memory was 174.5MB in the beginning and 132.5MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-22 01:58:14,392 INFO L158 Benchmark]: TraceAbstraction took 783147.79ms. Allocated memory was 268.4MB in the beginning and 323.0MB in the end (delta: 54.5MB). Free memory was 131.5MB in the beginning and 90.4MB in the end (delta: 41.2MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2022-11-22 01:58:14,393 INFO L158 Benchmark]: Witness Printer took 97.76ms. Allocated memory is still 323.0MB. Free memory was 90.4MB in the beginning and 82.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 01:58:14,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory is still 78.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 7364.35ms. Allocated memory was 180.4MB in the beginning and 268.4MB in the end (delta: 88.1MB). Free memory was 124.9MB in the beginning and 187.1MB in the end (delta: -62.2MB). Peak memory consumption was 100.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 186.13ms. Allocated memory is still 268.4MB. Free memory was 187.1MB in the beginning and 178.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.18ms. Allocated memory is still 268.4MB. Free memory was 178.7MB in the beginning and 174.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1150.89ms. Allocated memory is still 268.4MB. Free memory was 174.5MB in the beginning and 132.5MB in the end (delta: 42.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 783147.79ms. Allocated memory was 268.4MB in the beginning and 323.0MB in the end (delta: 54.5MB). Free memory was 131.5MB in the beginning and 90.4MB in the end (delta: 41.2MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. * Witness Printer took 97.76ms. Allocated memory is still 323.0MB. Free memory was 90.4MB in the beginning and 82.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 780.8s, 325 PlacesBefore, 28 PlacesAfterwards, 329 TransitionsBefore, 22 TransitionsAfterwards, 7758 CoEnabledTransitionPairs, 10 FixpointIterations, 198 TrivialSequentialCompositions, 122 ConcurrentSequentialCompositions, 18 TrivialYvCompositions, 24 ConcurrentYvCompositions, 10 ChoiceCompositions, 372 TotalNumberOfCompositions, 8478 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7094, independent: 6968, independent conditional: 0, independent unconditional: 6968, dependent: 70, dependent conditional: 0, dependent unconditional: 70, unknown: 56, unknown conditional: 0, unknown unconditional: 56] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 5443, independent: 5395, independent conditional: 0, independent unconditional: 5395, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 5443, independent: 5379, independent conditional: 0, independent unconditional: 5379, dependent: 64, dependent conditional: 0, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 64, independent: 16, independent conditional: 0, independent unconditional: 16, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 16, unknown conditional: 0, unknown unconditional: 16] , SemanticIndependenceRelation.Query Time [ms]: [ total: 27834, independent: 311, independent conditional: 0, independent unconditional: 311, dependent: 233, dependent conditional: 0, dependent unconditional: 233, unknown: 27289, unknown conditional: 0, unknown unconditional: 27289] ], Cache Queries: [ total: 7094, independent: 1573, independent conditional: 0, independent unconditional: 1573, dependent: 38, dependent conditional: 0, dependent unconditional: 38, unknown: 5483, unknown conditional: 0, unknown unconditional: 5483] , Statistics on independence cache: Total cache size (in pairs): 37, Positive cache size: 30, Positive conditional cache size: 0, Positive unconditional cache size: 30, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 4, Unknown conditional cache size: 0, Unknown unconditional cache size: 4 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 6694]: integer overflow possible integer overflow possible We found a FailurePath: [L246] 0 unsigned long jiffies; [L6519] 0 const unsigned int default_alloc_size = 4; [L6686] 0 static struct mutex nvram_mutex = { 1, 0 }; [L6687] 0 static ssize_t nvram_len; [L6762-L6768] 0 struct file_operations nvram_fops = { .owner = ((struct module *)0), .llseek = nvram_llseek, .read = read_nvram, .write = write_nvram, .unlocked_ioctl = nvram_unlocked_ioctl, }; [L6769-L6773] 0 static struct miscdevice nvram_dev = { 144, "nvram", &nvram_fops }; [L6792] 0 int (* _whoop_init)(void) = nvram_init; [L6793] 0 void (* _whoop_exit)(void) = nvram_cleanup; [L6794] 0 struct inode *whoop_inode_0; [L6795] 0 struct file *whoop_file_0; [L6796] 0 struct inode *whoop_inode_1; [L6797] 0 struct file *whoop_file_1; [L6798] 0 struct inode *whoop_inode_2; [L6799] 0 struct file *whoop_file_2; [L6800] 0 struct inode *whoop_inode_3; [L6801] 0 struct file *whoop_file_3; [L6802] 0 struct inode *whoop_inode_4; [L6803] 0 struct file *whoop_file_4; [L6804] 0 struct pci_dev *whoop_pci_dev; [L6805] 0 char *whoop_buf; [L6806] 0 struct platform_device *whoop_platform_device; [L6807] 0 struct vm_area_struct *whoop_vm_area_struct; [L6808] 0 struct cx_dev *whoop_cx_dev; [L6809] 0 poll_table *whoop_poll_table; [L6810] 0 loff_t *whoop_loff_t; [L6811] 0 int whoop_int; [L6839] 0 whoop_inode_0 = (struct inode *) malloc(sizeof(struct inode)) [L6840] 0 whoop_file_0 = (struct file *) malloc(sizeof(struct file)) [L6841] 0 whoop_inode_1 = (struct inode *) malloc(sizeof(struct inode)) [L6842] 0 whoop_file_1 = (struct file *) malloc(sizeof(struct file)) [L6843] 0 whoop_inode_2 = (struct inode *) malloc(sizeof(struct inode)) [L6844] 0 whoop_file_2 = (struct file *) malloc(sizeof(struct file)) [L6845] 0 whoop_inode_3 = (struct inode *) malloc(sizeof(struct inode)) [L6846] 0 whoop_file_3 = (struct file *) malloc(sizeof(struct file)) [L6847] 0 whoop_inode_4 = (struct inode *) malloc(sizeof(struct inode)) [L6848] 0 whoop_file_4 = (struct file *) malloc(sizeof(struct file)) [L6849] 0 whoop_pci_dev = (struct pci_dev *) malloc(sizeof(struct pci_dev)) [L6850] 0 whoop_buf = (char *) malloc(sizeof(char)) [L6851] 0 whoop_platform_device = (struct platform_device *) malloc(sizeof(struct platform_device)) [L6852] 0 whoop_vm_area_struct = (struct vm_area_struct *) malloc(sizeof(struct vm_area_struct)) [L6853] 0 whoop_cx_dev = (struct cx_dev *) malloc(sizeof(struct cx_dev)) [L6854] 0 whoop_poll_table = (poll_table *) malloc(sizeof(poll_table)) [L6855] 0 whoop_loff_t = (loff_t *) malloc(sizeof(loff_t)) [L6856] 0 whoop_int = __VERIFIER_nondet_int() [L6857] CALL 0 assume_abort_if_not(whoop_int >= 0) [L170] COND FALSE 0 !(!cond) [L6857] RET 0 assume_abort_if_not(whoop_int >= 0) [L6858] CALL, EXPR 0 _whoop_init() [L6776] 0 int ret = 0; [L6777-L6778] CALL 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6647] 0 return __VERIFIER_nondet_int(); [L6777-L6778] RET 0 printk("\001" "6" "Generic non-volatile memory driver v%s\n", "1.1") [L6779] CALL, EXPR 0 misc_register(&nvram_dev) [L6621] 0 return __VERIFIER_nondet_int(); [L6779] RET, EXPR 0 misc_register(&nvram_dev) [L6779] 0 ret = misc_register(&nvram_dev) [L6780] COND FALSE 0 !(ret != 0) [L6782] CALL, EXPR 0 nvram_get_size() [L6629] 0 return __VERIFIER_nondet_long(); [L6782] RET, EXPR 0 nvram_get_size() [L6782] 0 nvram_len = nvram_get_size() [L6783] COND TRUE 0 nvram_len < 0 [L6784] 0 nvram_len = 8192 [L6786] 0 return ret; [L6858] RET, EXPR 0 _whoop_init() [L6858] 0 int _whoop_init_result = _whoop_init(); [L6859] 0 pthread_t pthread_t_nvram_unlocked_ioctl; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_nvram_unlocked_ioctl, ((void *)0), whoop_wrapper_nvram_unlocked_ioctl, ((void *)0)) VAL [={-1:5}, ={-1:4}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_unlocked_ioctl, ((void *)0), whoop_wrapper_nvram_unlocked_ioctl, ((void *)0))=13, pthread_t_nvram_llseek={10:0}, pthread_t_nvram_unlocked_ioctl={11:0}, whoop_buf={-18:0}, whoop_cx_dev={-11:0}, whoop_file_0={-16:0}, whoop_file_1={-4:0}, whoop_file_2={-8:0}, whoop_file_3={-15:0}, whoop_file_4={-19:0}, whoop_inode_0={-5:0}, whoop_inode_1={-14:0}, whoop_inode_2={-13:0}, whoop_inode_3={-3:0}, whoop_inode_4={-17:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-10:0}, whoop_platform_device={-12:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-9:0}] [L6862] FCALL, FORK 0 pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0)) VAL [={-1:4}, ={-1:5}, _whoop_init_result=0, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, pthread_create(&pthread_t_nvram_llseek, ((void *)0), whoop_wrapper_nvram_llseek, ((void *)0))=14, pthread_t_nvram_llseek={10:0}, pthread_t_nvram_unlocked_ioctl={11:0}, whoop_buf={-18:0}, whoop_cx_dev={-11:0}, whoop_file_0={-16:0}, whoop_file_1={-4:0}, whoop_file_2={-8:0}, whoop_file_3={-15:0}, whoop_file_4={-19:0}, whoop_inode_0={-5:0}, whoop_inode_1={-14:0}, whoop_inode_2={-13:0}, whoop_inode_3={-3:0}, whoop_inode_4={-17:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-10:0}, whoop_platform_device={-12:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-9:0}] [L6829] CALL 2 nvram_llseek(whoop_file_3, __VERIFIER_nondet_long(), whoop_int) [L6691] 2 case 0: [L6693] 2 case 1: [L6694] EXPR 2 file->f_pos [L6694] 2 offset += file->f_pos VAL [={-1:4}, ={-1:5}, \old(offset)=0, \old(origin)=1, default_alloc_size=4, file={-15:0}, file={-15:0}, file->f_pos=-9223372036854775809, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=8192, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-18:0}, whoop_cx_dev={-11:0}, whoop_file_0={-16:0}, whoop_file_1={-4:0}, whoop_file_2={-8:0}, whoop_file_3={-15:0}, whoop_file_4={-19:0}, whoop_inode_0={-5:0}, whoop_inode_1={-14:0}, whoop_inode_2={-13:0}, whoop_inode_3={-3:0}, whoop_inode_4={-17:0}, whoop_int=1, whoop_loff_t={-6:0}, whoop_pci_dev={-10:0}, whoop_platform_device={-12:0}, whoop_poll_table={-7:0}, whoop_vm_area_struct={-9:0}] - UnprovableResult [Line: 6861]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6862]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 6694]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 6697]: 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 with 1 thread instances CFG has 5 procedures, 426 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 782.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 780.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 01:58:14,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd484924-09d8-4f62-956a-5a45c31b58a7/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)