./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races 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_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/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_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4a382c3d3f68b2f5ab68f4f645755e252baf0f41b5f6fcd4ac49047e77a0e936 --- 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 00:35:33,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:35:33,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:35:33,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:35:33,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:35:33,518 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:35:33,520 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:35:33,524 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:35:33,526 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:35:33,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:35:33,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:35:33,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:35:33,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:35:33,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:35:33,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:35:33,545 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:35:33,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:35:33,548 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:35:33,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:35:33,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:35:33,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:35:33,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:35:33,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:35:33,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:35:33,565 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:35:33,565 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:35:33,566 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:35:33,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:35:33,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:35:33,568 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:35:33,568 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:35:33,569 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:35:33,570 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:35:33,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:35:33,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:35:33,576 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:35:33,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:35:33,577 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:35:33,577 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:35:33,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:35:33,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:35:33,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 00:35:33,659 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:35:33,660 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:35:33,660 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:35:33,660 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:35:33,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:35:33,662 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:35:33,662 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:35:33,662 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:35:33,662 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:35:33,662 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:35:33,663 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:35:33,664 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:35:33,664 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:35:33,664 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:35:33,664 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:35:33,664 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:35:33,665 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:35:33,665 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:35:33,665 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:35:33,666 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:35:33,666 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:35:33,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:35:33,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:35:33,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:35:33,666 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:35:33,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:35:33,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:35:33,667 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 00:35:33,668 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:35:33,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:35:33,668 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:35:33,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:35:33,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:35:33,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:35:33,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:33,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:35:33,670 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:35:33,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:35:33,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:35:33,671 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:35:33,671 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:35:33,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:35:33,671 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:35:33,672 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_0d24aa9e-6133-4763-9956-1c28a6429451/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a382c3d3f68b2f5ab68f4f645755e252baf0f41b5f6fcd4ac49047e77a0e936 [2022-11-22 00:35:33,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:35:34,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:35:34,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:35:34,029 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:35:34,029 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:35:34,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2022-11-22 00:35:37,036 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:35:37,697 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:35:37,697 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i [2022-11-22 00:35:37,750 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/data/2916fe8ea/b8ccf41aedc24864b06231ff0f76364d/FLAGd10f2d80b [2022-11-22 00:35:37,769 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/data/2916fe8ea/b8ccf41aedc24864b06231ff0f76364d [2022-11-22 00:35:37,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:35:37,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:35:37,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:37,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:35:37,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:35:37,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:37" (1/1) ... [2022-11-22 00:35:37,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79da0e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:37, skipping insertion in model container [2022-11-22 00:35:37,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:37" (1/1) ... [2022-11-22 00:35:37,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:35:37,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:35:38,292 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_0d24aa9e-6133-4763-9956-1c28a6429451/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2022-11-22 00:35:43,063 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 00:35:43,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:43,872 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:35:43,898 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_0d24aa9e-6133-4763-9956-1c28a6429451/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_read_nvram_write_nvram.i[5469,5482] [2022-11-22 00:35:44,285 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 00:35:44,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:44,899 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:35:44,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44 WrapperNode [2022-11-22 00:35:44,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:44,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:44,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:35:44,902 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:35:44,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,185 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 18, statements flattened = 554 [2022-11-22 00:35:45,191 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:45,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:35:45,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:35:45,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:35:45,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:35:45,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:35:45,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:35:45,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:35:45,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (1/1) ... [2022-11-22 00:35:45,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:45,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:35:45,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:35:45,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d24aa9e-6133-4763-9956-1c28a6429451/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:35:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:35:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:35:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:35:45,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:35:45,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:35:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:35:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:35:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:35:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_read_nvram [2022-11-22 00:35:45,415 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_read_nvram [2022-11-22 00:35:45,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:35:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:35:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-11-22 00:35:45,416 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-11-22 00:35:45,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:35:45,418 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 00:35:45,939 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:35:45,941 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:35:46,874 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:35:46,894 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:35:46,895 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 00:35:46,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:46 BoogieIcfgContainer [2022-11-22 00:35:46,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:35:46,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:35:46,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:35:46,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:35:46,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:35:37" (1/3) ... [2022-11-22 00:35:46,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9568270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:46, skipping insertion in model container [2022-11-22 00:35:46,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:44" (2/3) ... [2022-11-22 00:35:46,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9568270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:46, skipping insertion in model container [2022-11-22 00:35:46,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:46" (3/3) ... [2022-11-22 00:35:46,910 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_read_nvram_write_nvram.i [2022-11-22 00:35:46,919 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:35:46,930 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:35:46,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 45 error locations. [2022-11-22 00:35:46,930 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:35:47,096 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 00:35:47,139 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:35:47,155 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 653 places, 663 transitions, 1342 flow [2022-11-22 00:35:47,158 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 653 places, 663 transitions, 1342 flow [2022-11-22 00:35:47,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 653 places, 663 transitions, 1342 flow [2022-11-22 00:35:47,512 INFO L130 PetriNetUnfolder]: 17/661 cut-off events. [2022-11-22 00:35:47,512 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 00:35:47,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 670 conditions, 661 events. 17/661 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1106 event pairs, 0 based on Foata normal form. 0/599 useless extension candidates. Maximal degree in co-relation 472. Up to 4 conditions per place. [2022-11-22 00:35:47,554 INFO L119 LiptonReduction]: Number of co-enabled transitions 63184 [2022-11-22 00:40:18,021 WARN L233 SmtUtils]: Spent 2.45m on a formula simplification. DAG size of input: 559 DAG size of output: 555 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:41:16,762 WARN L233 SmtUtils]: Spent 58.72s on a formula simplification that was a NOOP. DAG size: 483 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:43:12,927 WARN L233 SmtUtils]: Spent 1.94m on a formula simplification. DAG size of input: 562 DAG size of output: 558 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:43:47,643 WARN L233 SmtUtils]: Spent 34.69s on a formula simplification that was a NOOP. DAG size: 486 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:45:20,937 WARN L233 SmtUtils]: Spent 1.55m on a formula simplification. DAG size of input: 562 DAG size of output: 558 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:46:02,937 WARN L233 SmtUtils]: Spent 41.98s on a formula simplification that was a NOOP. DAG size: 484 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:48:24,938 WARN L233 SmtUtils]: Spent 2.37m on a formula simplification. DAG size of input: 565 DAG size of output: 561 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:49:23,910 WARN L233 SmtUtils]: Spent 58.95s on a formula simplification that was a NOOP. DAG size: 487 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:49:46,977 WARN L233 SmtUtils]: Spent 23.06s on a formula simplification that was a NOOP. DAG size: 516 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:50:05,395 WARN L233 SmtUtils]: Spent 18.41s on a formula simplification that was a NOOP. DAG size: 446 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:50:42,080 WARN L233 SmtUtils]: Spent 36.68s on a formula simplification that was a NOOP. DAG size: 519 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)