./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/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_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/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_aef523f4-6651-4d29-a10f-cea18f536f49/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 b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:28:33,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:28:33,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:28:33,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:28:33,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:28:33,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:28:33,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:28:33,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:28:33,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:28:33,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:28:33,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:28:33,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:28:33,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:28:33,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:28:33,546 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:28:33,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:28:33,551 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:28:33,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:28:33,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:28:33,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:28:33,565 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:28:33,568 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:28:33,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:28:33,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:28:33,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:28:33,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:28:33,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:28:33,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:28:33,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:28:33,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:28:33,590 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:28:33,591 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:28:33,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:28:33,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:28:33,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:28:33,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:28:33,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:28:33,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:28:33,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:28:33,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:28:33,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:28:33,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:28:33,644 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:28:33,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:28:33,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:28:33,646 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:28:33,647 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:28:33,647 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:28:33,648 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:28:33,648 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:28:33,648 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:28:33,649 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:28:33,650 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:28:33,650 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:28:33,651 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:28:33,651 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:28:33,651 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:28:33,652 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:28:33,652 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:28:33,652 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:28:33,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:28:33,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:28:33,654 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:28:33,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:28:33,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:28:33,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:28:33,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:28:33,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:28:33,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:28:33,656 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:28:33,656 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:28:33,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:28:33,657 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:28:33,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:28:33,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:28:33,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:28:33,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:28:33,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:28:33,659 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:28:33,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:28:33,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:28:33,660 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:28:33,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:28:33,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:28:33,661 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:28:33,661 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_aef523f4-6651-4d29-a10f-cea18f536f49/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 [2022-11-22 00:28:34,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:28:34,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:28:34,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:28:34,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:28:34,094 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:28:34,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-22 00:28:37,799 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:28:38,599 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:28:38,600 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-22 00:28:38,654 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/data/7848ea0bb/ea4f3528965a4073b971fa9b8a60ecde/FLAG37dff1b01 [2022-11-22 00:28:38,678 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/data/7848ea0bb/ea4f3528965a4073b971fa9b8a60ecde [2022-11-22 00:28:38,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:28:38,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:28:38,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:28:38,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:28:38,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:28:38,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:28:38" (1/1) ... [2022-11-22 00:28:38,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da0ebd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:38, skipping insertion in model container [2022-11-22 00:28:38,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:28:38" (1/1) ... [2022-11-22 00:28:38,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:28:38,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:28:39,360 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_aef523f4-6651-4d29-a10f-cea18f536f49/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-11-22 00:28:46,399 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 00:28:47,296 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:28:47,322 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:28:47,364 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_aef523f4-6651-4d29-a10f-cea18f536f49/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-11-22 00:28:47,934 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 00:28:48,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:28:48,696 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:28:48,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48 WrapperNode [2022-11-22 00:28:48,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:28:48,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:28:48,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:28:48,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:28:48,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,900 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 318 [2022-11-22 00:28:48,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:28:48,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:28:48,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:28:48,907 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:28:48,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,944 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,986 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,996 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:49,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:49,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:28:49,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:28:49,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:28:49,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:28:49,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:49,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:28:49,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:28:49,083 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:28:49,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:28:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:28:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:28:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:28:49,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:28:49,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:28:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:28:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:28:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:28:49,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:28:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:28:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-11-22 00:28:49,148 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-11-22 00:28:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:28:49,148 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-22 00:28:49,149 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-22 00:28:49,153 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 00:28:49,833 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:28:49,835 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:28:50,502 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:28:50,516 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:28:50,527 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:28:50,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:28:50 BoogieIcfgContainer [2022-11-22 00:28:50,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:28:50,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:28:50,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:28:50,541 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:28:50,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:28:38" (1/3) ... [2022-11-22 00:28:50,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772ceaaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:28:50, skipping insertion in model container [2022-11-22 00:28:50,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (2/3) ... [2022-11-22 00:28:50,545 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@772ceaaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:28:50, skipping insertion in model container [2022-11-22 00:28:50,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:28:50" (3/3) ... [2022-11-22 00:28:50,547 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-22 00:28:50,558 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:28:50,572 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:28:50,572 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 00:28:50,573 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:28:50,708 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 00:28:50,756 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:28:50,775 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 365 places, 373 transitions, 762 flow [2022-11-22 00:28:50,778 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 365 places, 373 transitions, 762 flow [2022-11-22 00:28:50,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 365 places, 373 transitions, 762 flow [2022-11-22 00:28:50,954 INFO L130 PetriNetUnfolder]: 15/371 cut-off events. [2022-11-22 00:28:50,954 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 00:28:50,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 380 conditions, 371 events. 15/371 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 379 event pairs, 0 based on Foata normal form. 0/352 useless extension candidates. Maximal degree in co-relation 297. Up to 5 conditions per place. [2022-11-22 00:28:50,975 INFO L119 LiptonReduction]: Number of co-enabled transitions 13830 [2022-11-22 00:29:40,344 WARN L233 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 339 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:29:51,556 WARN L233 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 339 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:29:56,678 WARN L233 SmtUtils]: Spent 5.12s on a formula simplification that was a NOOP. DAG size: 331 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:30:40,537 WARN L233 SmtUtils]: Spent 37.63s on a formula simplification that was a NOOP. DAG size: 470 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:31:01,948 WARN L233 SmtUtils]: Spent 21.40s 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 00:32:23,471 WARN L233 SmtUtils]: Spent 1.36m on a formula simplification. DAG size of input: 476 DAG size of output: 474 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:32:57,944 WARN L233 SmtUtils]: Spent 34.46s 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 00:35:24,290 WARN L233 SmtUtils]: Spent 2.44m 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 00:36:41,907 WARN L233 SmtUtils]: Spent 1.29m 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 00:39:42,040 WARN L233 SmtUtils]: Spent 3.00m 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 00:41:17,974 WARN L233 SmtUtils]: Spent 1.60m 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 00:41:17,978 INFO L134 LiptonReduction]: Checked pairs total: 15270 [2022-11-22 00:41:17,979 INFO L136 LiptonReduction]: Total number of compositions: 436 [2022-11-22 00:41:17,994 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 27 transitions, 70 flow [2022-11-22 00:41:18,012 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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 00:41:18,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:41:18,040 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;@40c547ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:41:18,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2022-11-22 00:41:18,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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 00:41:18,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:41:18,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:41:18,051 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:41:18,052 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 00:41:18,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:41:18,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1358160737, now seen corresponding path program 1 times [2022-11-22 00:41:18,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:41:18,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220961622] [2022-11-22 00:41:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:41:18,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:41:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:41:19,530 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 00:41:19,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:41:19,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220961622] [2022-11-22 00:41:19,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220961622] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:41:19,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:41:19,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:41:19,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851793112] [2022-11-22 00:41:19,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:41:19,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:41:19,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:41:19,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:41:19,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:41:19,589 INFO L87 Difference]: Start difference. First operand has 72 states, 68 states have (on average 2.6323529411764706) internal successors, (179), 71 states have internal predecessors, (179), 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 00:41:19,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:41:19,844 INFO L93 Difference]: Finished difference Result 60 states and 146 transitions. [2022-11-22 00:41:19,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:41:19,848 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 00:41:19,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:41:19,861 INFO L225 Difference]: With dead ends: 60 [2022-11-22 00:41:19,861 INFO L226 Difference]: Without dead ends: 60 [2022-11-22 00:41:19,863 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 00:41:19,874 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:41:19,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:41:19,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-22 00:41:19,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2022-11-22 00:41:19,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 57 states have (on average 2.56140350877193) internal successors, (146), 59 states have internal predecessors, (146), 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 00:41:19,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 146 transitions. [2022-11-22 00:41:19,935 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 146 transitions. Word has length 5 [2022-11-22 00:41:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:41:19,939 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 146 transitions. [2022-11-22 00:41:19,940 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 00:41:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 146 transitions. [2022-11-22 00:41:19,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:41:19,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:41:19,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:41:19,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:41:19,945 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-22 00:41:19,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:41:19,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1358160738, now seen corresponding path program 1 times [2022-11-22 00:41:19,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:41:19,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983591109] [2022-11-22 00:41:19,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:41:19,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:41:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:41:20,675 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 00:41:20,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:41:20,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983591109] [2022-11-22 00:41:20,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983591109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:41:20,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:41:20,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:41:20,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447885630] [2022-11-22 00:41:20,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:41:20,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:41:20,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:41:20,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:41:20,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:41:20,680 INFO L87 Difference]: Start difference. First operand 60 states and 146 transitions. 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 00:41:20,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:41:20,992 INFO L93 Difference]: Finished difference Result 48 states and 113 transitions. [2022-11-22 00:41:20,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:41:20,993 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 00:41:20,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:41:20,994 INFO L225 Difference]: With dead ends: 48 [2022-11-22 00:41:20,994 INFO L226 Difference]: Without dead ends: 48 [2022-11-22 00:41:20,995 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 00:41:20,996 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 00:41:20,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 00:41:20,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2022-11-22 00:41:21,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2022-11-22 00:41:21,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 46 states have (on average 2.4565217391304346) internal successors, (113), 47 states have internal predecessors, (113), 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 00:41:21,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 113 transitions. [2022-11-22 00:41:21,004 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 113 transitions. Word has length 5 [2022-11-22 00:41:21,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:41:21,005 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 113 transitions. [2022-11-22 00:41:21,005 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 00:41:21,006 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 113 transitions. [2022-11-22 00:41:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:41:21,006 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:41:21,007 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:41:21,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:41:21,007 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-11-22 00:41:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:41:21,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1358160739, now seen corresponding path program 1 times [2022-11-22 00:41:21,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:41:21,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664449115] [2022-11-22 00:41:21,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:41:21,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:41:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:41:21,157 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:41:21,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:41:21,279 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:41:21,284 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:41:21,285 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2022-11-22 00:41:21,288 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2022-11-22 00:41:21,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 10 remaining) [2022-11-22 00:41:21,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2022-11-22 00:41:21,289 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2022-11-22 00:41:21,291 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2022-11-22 00:41:21,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2022-11-22 00:41:21,292 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2022-11-22 00:41:21,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2022-11-22 00:41:21,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location whoop_wrapper_nvram_llseekErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2022-11-22 00:41:21,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:41:21,296 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 00:41:21,302 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:41:21,303 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:41:21,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:41:21 BasicIcfg [2022-11-22 00:41:21,393 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:41:21,394 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:41:21,394 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:41:21,395 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:41:21,395 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:28:50" (3/4) ... [2022-11-22 00:41:21,398 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 00:41:21,508 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:41:21,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:41:21,509 INFO L158 Benchmark]: Toolchain (without parser) took 762825.09ms. Allocated memory was 155.2MB in the beginning and 228.6MB in the end (delta: 73.4MB). Free memory was 114.3MB in the beginning and 72.0MB in the end (delta: 42.3MB). Peak memory consumption was 118.3MB. Max. memory is 16.1GB. [2022-11-22 00:41:21,509 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 155.2MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:41:21,510 INFO L158 Benchmark]: CACSL2BoogieTranslator took 10007.82ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 113.8MB in the beginning and 104.1MB in the end (delta: 9.7MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. [2022-11-22 00:41:21,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 203.07ms. Allocated memory is still 186.6MB. Free memory was 104.1MB in the beginning and 94.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 00:41:21,510 INFO L158 Benchmark]: Boogie Preprocessor took 132.68ms. Allocated memory is still 186.6MB. Free memory was 94.7MB in the beginning and 90.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:41:21,511 INFO L158 Benchmark]: RCFGBuilder took 1497.67ms. Allocated memory is still 186.6MB. Free memory was 90.5MB in the beginning and 115.8MB in the end (delta: -25.3MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2022-11-22 00:41:21,511 INFO L158 Benchmark]: TraceAbstraction took 750857.56ms. Allocated memory was 186.6MB in the beginning and 228.6MB in the end (delta: 41.9MB). Free memory was 114.7MB in the beginning and 80.4MB in the end (delta: 34.4MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-11-22 00:41:21,512 INFO L158 Benchmark]: Witness Printer took 113.88ms. Allocated memory is still 228.6MB. Free memory was 80.4MB in the beginning and 72.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-22 00:41:21,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 155.2MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 10007.82ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 113.8MB in the beginning and 104.1MB in the end (delta: 9.7MB). Peak memory consumption was 97.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 203.07ms. Allocated memory is still 186.6MB. Free memory was 104.1MB in the beginning and 94.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 132.68ms. Allocated memory is still 186.6MB. Free memory was 94.7MB in the beginning and 90.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1497.67ms. Allocated memory is still 186.6MB. Free memory was 90.5MB in the beginning and 115.8MB in the end (delta: -25.3MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * TraceAbstraction took 750857.56ms. Allocated memory was 186.6MB in the beginning and 228.6MB in the end (delta: 41.9MB). Free memory was 114.7MB in the beginning and 80.4MB in the end (delta: 34.4MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. * Witness Printer took 113.88ms. Allocated memory is still 228.6MB. Free memory was 80.4MB in the beginning and 72.0MB 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: 747.2s, 365 PlacesBefore, 30 PlacesAfterwards, 373 TransitionsBefore, 27 TransitionsAfterwards, 13830 CoEnabledTransitionPairs, 10 FixpointIterations, 203 TrivialSequentialCompositions, 175 ConcurrentSequentialCompositions, 16 TrivialYvCompositions, 31 ConcurrentYvCompositions, 11 ChoiceCompositions, 436 TotalNumberOfCompositions, 15270 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13204, independent: 13068, independent conditional: 0, independent unconditional: 13068, dependent: 126, dependent conditional: 0, dependent unconditional: 126, unknown: 10, unknown conditional: 0, unknown unconditional: 10] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 10312, independent: 10271, independent conditional: 0, independent unconditional: 10271, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 10312, independent: 10244, independent conditional: 0, independent unconditional: 10244, dependent: 68, dependent conditional: 0, dependent unconditional: 68, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 68, independent: 27, independent conditional: 0, independent unconditional: 27, dependent: 39, dependent conditional: 0, dependent unconditional: 39, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 4517, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 4225, unknown conditional: 0, unknown unconditional: 4225] ], Cache Queries: [ total: 13204, independent: 2797, independent conditional: 0, independent unconditional: 2797, dependent: 87, dependent conditional: 0, dependent unconditional: 87, unknown: 10320, unknown conditional: 0, unknown unconditional: 10320] , Statistics on independence cache: Total cache size (in pairs): 81, Positive cache size: 71, Positive conditional cache size: 0, Positive unconditional cache size: 71, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 2, Unknown conditional cache size: 0, Unknown unconditional cache size: 2 - 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 TRUE 0 ret != 0 [L6786] 0 return ret; [L6858] RET, EXPR 0 _whoop_init() [L6858] 0 int _whoop_init_result = _whoop_init(); [L6859] 0 pthread_t pthread_t_write_nvram; [L6860] 0 pthread_t pthread_t_nvram_llseek; [L6861] FCALL, FORK 0 pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0)) VAL [={-1:4}, ={-1:5}, _whoop_init_result=15, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, pthread_create(&pthread_t_write_nvram, ((void *)0), whoop_wrapper_write_nvram, ((void *)0))=13, pthread_t_nvram_llseek={10:0}, pthread_t_write_nvram={11:0}, whoop_buf={-14:0}, whoop_cx_dev={-13:0}, whoop_file_0={-7:0}, whoop_file_1={-9:0}, whoop_file_2={-11:0}, whoop_file_3={-12:0}, whoop_file_4={-6:0}, whoop_inode_0={-17:0}, whoop_inode_1={-19:0}, whoop_inode_2={-16:0}, whoop_inode_3={-10:0}, whoop_inode_4={-4:0}, whoop_int=1, whoop_loff_t={-3:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-15:0}, whoop_poll_table={-18:0}, whoop_vm_area_struct={-8:0}] [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=15, default_alloc_size=4, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, 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_write_nvram={11:0}, whoop_buf={-14:0}, whoop_cx_dev={-13:0}, whoop_file_0={-7:0}, whoop_file_1={-9:0}, whoop_file_2={-11:0}, whoop_file_3={-12:0}, whoop_file_4={-6:0}, whoop_inode_0={-17:0}, whoop_inode_1={-19:0}, whoop_inode_2={-16:0}, whoop_inode_3={-10:0}, whoop_inode_4={-4:0}, whoop_int=1, whoop_loff_t={-3:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-15:0}, whoop_poll_table={-18:0}, whoop_vm_area_struct={-8:0}] [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 [={-1:5}, ={-1:4}, \old(offset)=0, \old(origin)=1, default_alloc_size=4, file={-12:0}, file={-12:0}, file->f_pos=9223372036854775808, jiffies=0, nvram_dev={9:0}, nvram_fops={8:0}, nvram_len=0, nvram_mutex={7:0}, offset=0, origin=1, whoop_buf={-14:0}, whoop_cx_dev={-13:0}, whoop_file_0={-7:0}, whoop_file_1={-9:0}, whoop_file_2={-11:0}, whoop_file_3={-12:0}, whoop_file_4={-6:0}, whoop_inode_0={-17:0}, whoop_inode_1={-19:0}, whoop_inode_2={-16:0}, whoop_inode_3={-10:0}, whoop_inode_4={-4:0}, whoop_int=1, whoop_loff_t={-3:0}, whoop_pci_dev={-5:0}, whoop_platform_device={-15:0}, whoop_poll_table={-18:0}, whoop_vm_area_struct={-8:0}] - 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, 506 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 750.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 747.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 33 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 00:41:21,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aef523f4-6651-4d29-a10f-cea18f536f49/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)