./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_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_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/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_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/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_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/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_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/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 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 00:08:47,406 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:08:47,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:08:47,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:08:47,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:08:47,478 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:08:47,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:08:47,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:08:47,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:08:47,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:08:47,492 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:08:47,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:08:47,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:08:47,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:08:47,499 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:08:47,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:08:47,503 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:08:47,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:08:47,520 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:08:47,526 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:08:47,528 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:08:47,529 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:08:47,530 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:08:47,531 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:08:47,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:08:47,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:08:47,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:08:47,544 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:08:47,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:08:47,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:08:47,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:08:47,550 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:08:47,552 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:08:47,553 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:08:47,554 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:08:47,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:08:47,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:08:47,556 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:08:47,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:08:47,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:08:47,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:08:47,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 00:08:47,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:08:47,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:08:47,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:08:47,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:08:47,601 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:08:47,601 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:08:47,602 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:08:47,602 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:08:47,602 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:08:47,602 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:08:47,604 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:08:47,604 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:08:47,604 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:08:47,604 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:08:47,605 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:08:47,605 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:08:47,605 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:08:47,606 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:08:47,607 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:08:47,607 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:08:47,607 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:08:47,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:08:47,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:08:47,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:08:47,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:08:47,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:08:47,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:08:47,609 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 00:08:47,610 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:08:47,610 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:08:47,610 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:08:47,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:08:47,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:08:47,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:08:47,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:08:47,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:08:47,613 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:08:47,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:08:47,614 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:08:47,614 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:08:47,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:08:47,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:08:47,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:08:47,615 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_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b61dd6293576613fe76a1f6c7de40e10adddf0336817b3530deb76123c32b759 [2022-11-22 00:08:47,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:08:47,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:08:47,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:08:47,973 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:08:47,973 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:08:47,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-22 00:08:51,017 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:08:51,639 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:08:51,642 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-22 00:08:51,697 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/data/c5048c762/1394cb21662348ccb65d4f84389d1969/FLAG052c9cc86 [2022-11-22 00:08:51,717 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/data/c5048c762/1394cb21662348ccb65d4f84389d1969 [2022-11-22 00:08:51,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:08:51,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:08:51,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:08:51,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:08:51,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:08:51,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:08:51" (1/1) ... [2022-11-22 00:08:51,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4968df97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:51, skipping insertion in model container [2022-11-22 00:08:51,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:08:51" (1/1) ... [2022-11-22 00:08:51,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:08:51,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:08:52,284 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_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-11-22 00:08:57,354 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 00:08:58,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:08:58,220 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:08:58,253 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_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/sv-benchmarks/c/pthread-driver-races/char_generic_nvram_nvram_llseek_write_nvram.i[5469,5482] [2022-11-22 00:08:58,757 WARN L611 FunctionHandler]: implicit declaration of function __builtin_constant_p [2022-11-22 00:08:58,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:08:59,440 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:08:59,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59 WrapperNode [2022-11-22 00:08:59,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:08:59,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:08:59,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:08:59,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:08:59,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,728 INFO L138 Inliner]: procedures = 1354, calls = 1452, calls flagged for inlining = 347, calls inlined = 15, statements flattened = 509 [2022-11-22 00:08:59,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:08:59,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:08:59,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:08:59,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:08:59,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,762 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,835 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:08:59,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:08:59,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:08:59,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:08:59,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (1/1) ... [2022-11-22 00:08:59,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:08:59,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:08:59,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:08:59,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ee8c59b5-53f8-4fdb-9114-51dd26c4491f/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:08:59,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:08:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 00:08:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:08:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:08:59,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:08:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 00:08:59,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:08:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:08:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:08:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 00:08:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_write_nvram [2022-11-22 00:08:59,941 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_write_nvram [2022-11-22 00:08:59,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:08:59,942 INFO L130 BoogieDeclarations]: Found specification of procedure whoop_wrapper_nvram_llseek [2022-11-22 00:08:59,942 INFO L138 BoogieDeclarations]: Found implementation of procedure whoop_wrapper_nvram_llseek [2022-11-22 00:08:59,945 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 00:09:00,488 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:09:00,495 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:09:01,336 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:09:01,355 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:09:01,355 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:09:01,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:09:01 BoogieIcfgContainer [2022-11-22 00:09:01,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:09:01,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:09:01,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:09:01,367 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:09:01,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:08:51" (1/3) ... [2022-11-22 00:09:01,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9a538b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:09:01, skipping insertion in model container [2022-11-22 00:09:01,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:08:59" (2/3) ... [2022-11-22 00:09:01,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a9a538b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:09:01, skipping insertion in model container [2022-11-22 00:09:01,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:09:01" (3/3) ... [2022-11-22 00:09:01,372 INFO L112 eAbstractionObserver]: Analyzing ICFG char_generic_nvram_nvram_llseek_write_nvram.i [2022-11-22 00:09:01,381 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:09:01,392 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:09:01,392 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-22 00:09:01,392 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:09:01,549 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-22 00:09:01,588 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:09:01,603 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 594 places, 603 transitions, 1222 flow [2022-11-22 00:09:01,605 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 594 places, 603 transitions, 1222 flow [2022-11-22 00:09:01,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 594 places, 603 transitions, 1222 flow [2022-11-22 00:09:01,912 INFO L130 PetriNetUnfolder]: 16/601 cut-off events. [2022-11-22 00:09:01,913 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 00:09:01,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 601 events. 16/601 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 816 event pairs, 0 based on Foata normal form. 0/543 useless extension candidates. Maximal degree in co-relation 472. Up to 5 conditions per place. [2022-11-22 00:09:01,947 INFO L119 LiptonReduction]: Number of co-enabled transitions 41704 [2022-11-22 00:10:13,210 WARN L233 SmtUtils]: Spent 11.52s on a formula simplification that was a NOOP. DAG size: 413 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:10:20,423 WARN L233 SmtUtils]: Spent 7.17s on a formula simplification that was a NOOP. DAG size: 366 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:10:33,826 WARN L233 SmtUtils]: Spent 13.40s on a formula simplification that was a NOOP. DAG size: 413 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:10:45,393 WARN L233 SmtUtils]: Spent 11.55s on a formula simplification that was a NOOP. DAG size: 366 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:12:37,052 WARN L233 SmtUtils]: Spent 1.78m on a formula simplification. DAG size of input: 527 DAG size of output: 523 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:13:00,666 WARN L233 SmtUtils]: Spent 23.60s 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 00:14:54,146 WARN L233 SmtUtils]: Spent 1.89m on a formula simplification. DAG size of input: 530 DAG size of output: 526 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:15:45,876 WARN L233 SmtUtils]: Spent 51.71s 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 00:16:20,309 WARN L233 SmtUtils]: Spent 34.34s on a formula simplification that was a NOOP. DAG size: 488 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:16:50,826 WARN L233 SmtUtils]: Spent 30.51s on a formula simplification that was a NOOP. DAG size: 450 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:17:24,857 WARN L233 SmtUtils]: Spent 34.03s on a formula simplification that was a NOOP. DAG size: 491 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:17:54,555 WARN L233 SmtUtils]: Spent 29.69s on a formula simplification that was a NOOP. DAG size: 453 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:18:16,165 WARN L233 SmtUtils]: Spent 21.61s on a formula simplification that was a NOOP. DAG size: 483 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:18:44,774 WARN L233 SmtUtils]: Spent 28.60s on a formula simplification that was a NOOP. DAG size: 445 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:19:13,724 WARN L233 SmtUtils]: Spent 28.95s on a formula simplification that was a NOOP. DAG size: 486 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:19:32,630 WARN L233 SmtUtils]: Spent 18.90s on a formula simplification that was a NOOP. DAG size: 448 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:20:47,734 WARN L233 SmtUtils]: Spent 1.25m on a formula simplification. DAG size of input: 499 DAG size of output: 495 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:21:25,149 WARN L233 SmtUtils]: Spent 37.41s on a formula simplification that was a NOOP. DAG size: 485 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:23:14,402 WARN L233 SmtUtils]: Spent 1.82m on a formula simplification. DAG size of input: 502 DAG size of output: 498 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-22 00:23:49,235 WARN L233 SmtUtils]: Spent 34.83s on a formula simplification that was a NOOP. DAG size: 488 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)