./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/qrcu-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/qrcu-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur --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 d1980d3c26a5811df2d100379a9d31e1e9ec963bc59bfe660be33ada51bfb014 --- 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-38b53e6 [2022-11-26 00:42:56,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:42:56,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:42:56,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:42:56,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:42:56,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:42:56,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:42:56,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:42:56,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:42:56,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:42:56,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:42:56,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:42:56,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:42:56,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:42:56,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:42:56,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:42:56,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:42:56,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:42:56,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:42:56,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:42:56,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:42:56,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:42:56,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:42:56,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:42:56,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:42:56,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:42:56,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:42:56,440 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:42:56,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:42:56,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:42:56,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:42:56,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:42:56,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:42:56,444 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:42:56,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:42:56,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:42:56,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:42:56,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:42:56,448 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:42:56,449 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:42:56,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:42:56,450 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:42:56,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:42:56,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:42:56,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:42:56,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:42:56,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:42:56,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:42:56,475 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:42:56,475 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:42:56,476 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:42:56,476 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:42:56,476 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:42:56,476 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:42:56,477 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:42:56,477 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:42:56,477 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:42:56,478 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:42:56,478 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:42:56,478 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:42:56,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:42:56,480 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:42:56,480 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:42:56,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:42:56,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:42:56,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:42:56,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:42:56,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:42:56,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:42:56,482 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:42:56,483 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:42:56,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:42:56,483 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:42:56,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:42:56,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:42:56,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:42:56,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:42:56,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:42:56,485 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:42:56,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:42:56,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:42:56,486 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:42:56,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:42:56,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:42:56,487 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:42:56,487 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_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1980d3c26a5811df2d100379a9d31e1e9ec963bc59bfe660be33ada51bfb014 [2022-11-26 00:42:56,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:42:56,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:42:56,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:42:56,773 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:42:56,773 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:42:56,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/pthread-atomic/qrcu-2.i [2022-11-26 00:42:59,946 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:43:00,328 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:43:00,329 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/sv-benchmarks/c/pthread-atomic/qrcu-2.i [2022-11-26 00:43:00,342 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/data/704cf47eb/9ca32fadea1a4ca9a7fdecb5c9a5d5fb/FLAGd47d3b1ea [2022-11-26 00:43:00,360 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/data/704cf47eb/9ca32fadea1a4ca9a7fdecb5c9a5d5fb [2022-11-26 00:43:00,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:43:00,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:43:00,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:43:00,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:43:00,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:43:00,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:00,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768f8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00, skipping insertion in model container [2022-11-26 00:43:00,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:00,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:43:00,426 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:43:00,802 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_80a89478-a9c3-437e-a2f2-8c17ed30f070/sv-benchmarks/c/pthread-atomic/qrcu-2.i[30690,30703] [2022-11-26 00:43:00,805 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_80a89478-a9c3-437e-a2f2-8c17ed30f070/sv-benchmarks/c/pthread-atomic/qrcu-2.i[30912,30925] [2022-11-26 00:43:00,831 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:43:00,845 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:43:00,885 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_80a89478-a9c3-437e-a2f2-8c17ed30f070/sv-benchmarks/c/pthread-atomic/qrcu-2.i[30690,30703] [2022-11-26 00:43:00,887 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_80a89478-a9c3-437e-a2f2-8c17ed30f070/sv-benchmarks/c/pthread-atomic/qrcu-2.i[30912,30925] [2022-11-26 00:43:00,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:43:00,942 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:43:00,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00 WrapperNode [2022-11-26 00:43:00,942 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:43:00,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:43:00,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:43:00,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:43:00,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:00,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,008 INFO L138 Inliner]: procedures = 177, calls = 44, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 441 [2022-11-26 00:43:01,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:43:01,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:43:01,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:43:01,009 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:43:01,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,049 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:43:01,057 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:43:01,057 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:43:01,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:43:01,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (1/1) ... [2022-11-26 00:43:01,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:43:01,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:43:01,097 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:43:01,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:43:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2022-11-26 00:43:01,170 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2022-11-26 00:43:01,170 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2022-11-26 00:43:01,170 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2022-11-26 00:43:01,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:43:01,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:43:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2022-11-26 00:43:01,172 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2022-11-26 00:43:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-26 00:43:01,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:43:01,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:43:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:43:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:43:01,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:43:01,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:43:01,177 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:43:01,416 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:43:01,418 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:43:02,324 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:43:02,849 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:43:02,852 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-26 00:43:02,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:43:02 BoogieIcfgContainer [2022-11-26 00:43:02,859 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:43:02,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:43:02,863 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:43:02,868 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:43:02,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:43:00" (1/3) ... [2022-11-26 00:43:02,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c19a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:43:02, skipping insertion in model container [2022-11-26 00:43:02,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:43:00" (2/3) ... [2022-11-26 00:43:02,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c19a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:43:02, skipping insertion in model container [2022-11-26 00:43:02,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:43:02" (3/3) ... [2022-11-26 00:43:02,874 INFO L112 eAbstractionObserver]: Analyzing ICFG qrcu-2.i [2022-11-26 00:43:02,890 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:43:02,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:43:02,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2022-11-26 00:43:02,903 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:43:03,051 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-26 00:43:03,109 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:43:03,140 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 323 transitions, 670 flow [2022-11-26 00:43:03,143 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 323 transitions, 670 flow [2022-11-26 00:43:03,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 323 transitions, 670 flow [2022-11-26 00:43:03,371 INFO L130 PetriNetUnfolder]: 18/320 cut-off events. [2022-11-26 00:43:03,371 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-26 00:43:03,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 320 events. 18/320 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 911 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 266. Up to 4 conditions per place. [2022-11-26 00:43:03,402 INFO L119 LiptonReduction]: Number of co-enabled transitions 42882 [2022-11-26 00:43:16,589 INFO L134 LiptonReduction]: Checked pairs total: 163756 [2022-11-26 00:43:16,590 INFO L136 LiptonReduction]: Total number of compositions: 286 [2022-11-26 00:43:16,599 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 165 transitions, 354 flow [2022-11-26 00:43:24,177 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 180922 states, 169934 states have (on average 4.145038662068803) internal successors, (704383), 180921 states have internal predecessors, (704383), 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) [2022-11-26 00:43:24,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:43:24,232 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;@a5ac2eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:43:24,233 INFO L358 AbstractCegarLoop]: Starting to check reachability of 110 error locations. [2022-11-26 00:43:24,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 180922 states, 169934 states have (on average 4.145038662068803) internal successors, (704383), 180921 states have internal predecessors, (704383), 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) [2022-11-26 00:43:24,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:43:24,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:24,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:43:24,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting qrcu_reader1Err5ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:24,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:24,657 INFO L85 PathProgramCache]: Analyzing trace with hash 57218146, now seen corresponding path program 1 times [2022-11-26 00:43:24,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:24,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697284952] [2022-11-26 00:43:24,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:24,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:24,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:24,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:43:24,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:24,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697284952] [2022-11-26 00:43:24,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697284952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:24,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:24,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-26 00:43:24,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623024458] [2022-11-26 00:43:24,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:24,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:43:24,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:25,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:43:25,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:43:25,240 INFO L87 Difference]: Start difference. First operand has 180922 states, 169934 states have (on average 4.145038662068803) internal successors, (704383), 180921 states have internal predecessors, (704383), 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 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-26 00:43:27,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:27,167 INFO L93 Difference]: Finished difference Result 46049 states and 168896 transitions. [2022-11-26 00:43:27,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:43:27,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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 4 [2022-11-26 00:43:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:27,677 INFO L225 Difference]: With dead ends: 46049 [2022-11-26 00:43:27,678 INFO L226 Difference]: Without dead ends: 45994 [2022-11-26 00:43:27,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:43:27,684 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:27,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:43:27,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45994 states. [2022-11-26 00:43:30,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45994 to 45994. [2022-11-26 00:43:30,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45994 states, 45643 states have (on average 3.695944613631882) internal successors, (168694), 45993 states have internal predecessors, (168694), 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) [2022-11-26 00:43:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45994 states to 45994 states and 168694 transitions. [2022-11-26 00:43:30,412 INFO L78 Accepts]: Start accepts. Automaton has 45994 states and 168694 transitions. Word has length 4 [2022-11-26 00:43:30,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:30,413 INFO L495 AbstractCegarLoop]: Abstraction has 45994 states and 168694 transitions. [2022-11-26 00:43:30,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2022-11-26 00:43:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 45994 states and 168694 transitions. [2022-11-26 00:43:30,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:43:30,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:30,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:43:30,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:43:30,415 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1773759098, now seen corresponding path program 1 times [2022-11-26 00:43:30,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:30,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422667809] [2022-11-26 00:43:30,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:30,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:30,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:43:30,489 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:30,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422667809] [2022-11-26 00:43:30,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422667809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:30,490 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:30,490 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:43:30,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889472689] [2022-11-26 00:43:30,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:30,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:43:30,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:43:30,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:30,494 INFO L87 Difference]: Start difference. First operand 45994 states and 168694 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-26 00:43:31,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:31,646 INFO L93 Difference]: Finished difference Result 53414 states and 193198 transitions. [2022-11-26 00:43:31,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:43:31,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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 [2022-11-26 00:43:31,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:32,096 INFO L225 Difference]: With dead ends: 53414 [2022-11-26 00:43:32,096 INFO L226 Difference]: Without dead ends: 53414 [2022-11-26 00:43:32,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:32,098 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 116 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:32,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 127 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:43:32,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53414 states. [2022-11-26 00:43:34,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53414 to 43544. [2022-11-26 00:43:34,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43544 states, 43293 states have (on average 3.668976508904442) internal successors, (158841), 43543 states have internal predecessors, (158841), 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) [2022-11-26 00:43:34,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43544 states to 43544 states and 158841 transitions. [2022-11-26 00:43:34,648 INFO L78 Accepts]: Start accepts. Automaton has 43544 states and 158841 transitions. Word has length 5 [2022-11-26 00:43:34,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:34,649 INFO L495 AbstractCegarLoop]: Abstraction has 43544 states and 158841 transitions. [2022-11-26 00:43:34,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 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) [2022-11-26 00:43:34,650 INFO L276 IsEmpty]: Start isEmpty. Operand 43544 states and 158841 transitions. [2022-11-26 00:43:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:43:34,652 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:34,652 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:34,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:43:34,655 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting qrcu_updaterErr4ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:34,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:34,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1010203020, now seen corresponding path program 1 times [2022-11-26 00:43:34,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:34,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164821162] [2022-11-26 00:43:34,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:34,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:34,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:34,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:43:34,801 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:34,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164821162] [2022-11-26 00:43:34,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164821162] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:34,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:34,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:43:34,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293563091] [2022-11-26 00:43:34,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:34,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:43:34,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:34,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:43:34,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:34,804 INFO L87 Difference]: Start difference. First operand 43544 states and 158841 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-26 00:43:35,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:35,902 INFO L93 Difference]: Finished difference Result 63278 states and 229139 transitions. [2022-11-26 00:43:35,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:43:35,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-26 00:43:35,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:36,249 INFO L225 Difference]: With dead ends: 63278 [2022-11-26 00:43:36,249 INFO L226 Difference]: Without dead ends: 63260 [2022-11-26 00:43:36,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:36,251 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 75 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:36,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 108 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:43:36,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63260 states. [2022-11-26 00:43:38,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63260 to 46394. [2022-11-26 00:43:38,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46394 states, 46145 states have (on average 3.6608083215949723) internal successors, (168928), 46393 states have internal predecessors, (168928), 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) [2022-11-26 00:43:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46394 states to 46394 states and 168928 transitions. [2022-11-26 00:43:38,771 INFO L78 Accepts]: Start accepts. Automaton has 46394 states and 168928 transitions. Word has length 8 [2022-11-26 00:43:38,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:38,772 INFO L495 AbstractCegarLoop]: Abstraction has 46394 states and 168928 transitions. [2022-11-26 00:43:38,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-26 00:43:38,772 INFO L276 IsEmpty]: Start isEmpty. Operand 46394 states and 168928 transitions. [2022-11-26 00:43:38,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:43:38,773 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:38,774 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:38,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:43:38,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting qrcu_updaterErr2ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:38,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:38,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1010203049, now seen corresponding path program 1 times [2022-11-26 00:43:38,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:38,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400576661] [2022-11-26 00:43:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:38,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:38,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:43:38,877 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:38,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400576661] [2022-11-26 00:43:38,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400576661] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:38,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:38,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:43:38,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774627407] [2022-11-26 00:43:38,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:38,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:43:38,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:38,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:43:38,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:38,881 INFO L87 Difference]: Start difference. First operand 46394 states and 168928 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-26 00:43:39,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:39,490 INFO L93 Difference]: Finished difference Result 65960 states and 238282 transitions. [2022-11-26 00:43:39,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:43:39,491 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-26 00:43:39,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:39,885 INFO L225 Difference]: With dead ends: 65960 [2022-11-26 00:43:39,885 INFO L226 Difference]: Without dead ends: 65924 [2022-11-26 00:43:39,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:39,886 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 75 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:39,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 110 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:43:40,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65924 states. [2022-11-26 00:43:42,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65924 to 49226. [2022-11-26 00:43:42,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49226 states, 48979 states have (on average 3.653769983053962) internal successors, (178958), 49225 states have internal predecessors, (178958), 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) [2022-11-26 00:43:43,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49226 states to 49226 states and 178958 transitions. [2022-11-26 00:43:43,048 INFO L78 Accepts]: Start accepts. Automaton has 49226 states and 178958 transitions. Word has length 8 [2022-11-26 00:43:43,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:43,048 INFO L495 AbstractCegarLoop]: Abstraction has 49226 states and 178958 transitions. [2022-11-26 00:43:43,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-11-26 00:43:43,049 INFO L276 IsEmpty]: Start isEmpty. Operand 49226 states and 178958 transitions. [2022-11-26 00:43:43,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:43:43,050 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:43,050 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:43,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:43:43,051 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:43,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:43,052 INFO L85 PathProgramCache]: Analyzing trace with hash -686083523, now seen corresponding path program 1 times [2022-11-26 00:43:43,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:43,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526937947] [2022-11-26 00:43:43,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:43,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:43,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:43:43,123 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:43,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526937947] [2022-11-26 00:43:43,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526937947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:43,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:43,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:43:43,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380919681] [2022-11-26 00:43:43,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:43,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:43:43,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:43,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:43:43,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:43,126 INFO L87 Difference]: Start difference. First operand 49226 states and 178958 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-26 00:43:43,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:43,581 INFO L93 Difference]: Finished difference Result 45746 states and 162236 transitions. [2022-11-26 00:43:43,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:43:43,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-26 00:43:43,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:43,793 INFO L225 Difference]: With dead ends: 45746 [2022-11-26 00:43:43,793 INFO L226 Difference]: Without dead ends: 45722 [2022-11-26 00:43:43,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:43,795 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 87 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:43,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 82 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:43:43,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45722 states. [2022-11-26 00:43:45,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45722 to 45122. [2022-11-26 00:43:45,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45122 states, 44839 states have (on average 3.580855951292402) internal successors, (160562), 45121 states have internal predecessors, (160562), 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) [2022-11-26 00:43:45,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45122 states to 45122 states and 160562 transitions. [2022-11-26 00:43:45,575 INFO L78 Accepts]: Start accepts. Automaton has 45122 states and 160562 transitions. Word has length 10 [2022-11-26 00:43:45,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:45,576 INFO L495 AbstractCegarLoop]: Abstraction has 45122 states and 160562 transitions. [2022-11-26 00:43:45,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-26 00:43:45,576 INFO L276 IsEmpty]: Start isEmpty. Operand 45122 states and 160562 transitions. [2022-11-26 00:43:45,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:43:45,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:45,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:45,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:43:45,578 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:45,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:45,579 INFO L85 PathProgramCache]: Analyzing trace with hash -697165775, now seen corresponding path program 1 times [2022-11-26 00:43:45,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:45,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298446245] [2022-11-26 00:43:45,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:45,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:45,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:45,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:43:45,621 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:45,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298446245] [2022-11-26 00:43:45,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298446245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:45,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:45,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:43:45,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915441139] [2022-11-26 00:43:45,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:45,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:43:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:45,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:43:45,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:45,624 INFO L87 Difference]: Start difference. First operand 45122 states and 160562 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-26 00:43:46,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:46,820 INFO L93 Difference]: Finished difference Result 49452 states and 176048 transitions. [2022-11-26 00:43:46,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:43:46,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-26 00:43:46,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:47,064 INFO L225 Difference]: With dead ends: 49452 [2022-11-26 00:43:47,064 INFO L226 Difference]: Without dead ends: 49452 [2022-11-26 00:43:47,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:47,065 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 101 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:47,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 170 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:43:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49452 states. [2022-11-26 00:43:48,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49452 to 47150. [2022-11-26 00:43:48,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47150 states, 46875 states have (on average 3.579456) internal successors, (167787), 47149 states have internal predecessors, (167787), 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) [2022-11-26 00:43:48,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47150 states to 47150 states and 167787 transitions. [2022-11-26 00:43:48,854 INFO L78 Accepts]: Start accepts. Automaton has 47150 states and 167787 transitions. Word has length 10 [2022-11-26 00:43:48,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:48,855 INFO L495 AbstractCegarLoop]: Abstraction has 47150 states and 167787 transitions. [2022-11-26 00:43:48,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2022-11-26 00:43:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand 47150 states and 167787 transitions. [2022-11-26 00:43:48,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:43:48,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:48,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:48,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-26 00:43:48,859 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:48,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:48,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1019370894, now seen corresponding path program 1 times [2022-11-26 00:43:48,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:48,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109960138] [2022-11-26 00:43:48,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:48,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:48,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:43:48,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:48,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109960138] [2022-11-26 00:43:48,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109960138] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:48,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:48,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:43:48,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556812385] [2022-11-26 00:43:48,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:48,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:43:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:48,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:43:48,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:48,950 INFO L87 Difference]: Start difference. First operand 47150 states and 167787 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-26 00:43:49,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:49,574 INFO L93 Difference]: Finished difference Result 49374 states and 175625 transitions. [2022-11-26 00:43:49,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:43:49,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2022-11-26 00:43:49,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:49,894 INFO L225 Difference]: With dead ends: 49374 [2022-11-26 00:43:49,895 INFO L226 Difference]: Without dead ends: 49374 [2022-11-26 00:43:49,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:49,896 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 100 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:49,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 169 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:43:50,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49374 states. [2022-11-26 00:43:51,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49374 to 49374. [2022-11-26 00:43:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49374 states, 49115 states have (on average 3.5757915097220807) internal successors, (175625), 49373 states have internal predecessors, (175625), 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) [2022-11-26 00:43:51,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49374 states to 49374 states and 175625 transitions. [2022-11-26 00:43:51,927 INFO L78 Accepts]: Start accepts. Automaton has 49374 states and 175625 transitions. Word has length 12 [2022-11-26 00:43:51,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:51,927 INFO L495 AbstractCegarLoop]: Abstraction has 49374 states and 175625 transitions. [2022-11-26 00:43:51,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-26 00:43:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 49374 states and 175625 transitions. [2022-11-26 00:43:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:43:51,932 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:51,933 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:51,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:43:51,933 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting qrcu_reader1Err8ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:51,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:51,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1197836315, now seen corresponding path program 1 times [2022-11-26 00:43:51,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:51,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132664591] [2022-11-26 00:43:51,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:51,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:51,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:43:51,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:43:51,999 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:43:51,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132664591] [2022-11-26 00:43:51,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132664591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:43:51,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:43:51,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:43:52,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78094169] [2022-11-26 00:43:52,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:43:52,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:43:52,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:43:52,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:43:52,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:52,003 INFO L87 Difference]: Start difference. First operand 49374 states and 175625 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-26 00:43:53,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:43:53,410 INFO L93 Difference]: Finished difference Result 51426 states and 182915 transitions. [2022-11-26 00:43:53,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:43:53,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 13 [2022-11-26 00:43:53,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:43:53,637 INFO L225 Difference]: With dead ends: 51426 [2022-11-26 00:43:53,637 INFO L226 Difference]: Without dead ends: 51158 [2022-11-26 00:43:53,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:43:53,638 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 100 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:43:53,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 171 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:43:53,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51158 states. [2022-11-26 00:43:55,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51158 to 51158. [2022-11-26 00:43:55,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51158 states, 50915 states have (on average 3.5695374644014533) internal successors, (181743), 51157 states have internal predecessors, (181743), 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) [2022-11-26 00:43:55,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51158 states to 51158 states and 181743 transitions. [2022-11-26 00:43:55,372 INFO L78 Accepts]: Start accepts. Automaton has 51158 states and 181743 transitions. Word has length 13 [2022-11-26 00:43:55,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:43:55,372 INFO L495 AbstractCegarLoop]: Abstraction has 51158 states and 181743 transitions. [2022-11-26 00:43:55,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-11-26 00:43:55,373 INFO L276 IsEmpty]: Start isEmpty. Operand 51158 states and 181743 transitions. [2022-11-26 00:43:55,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:43:55,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:43:55,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:55,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-26 00:43:55,375 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting qrcu_updaterErr2ASSERT_VIOLATIONDATA_RACE === [qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE, qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (and 107 more)] === [2022-11-26 00:43:55,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:43:55,375 INFO L85 PathProgramCache]: Analyzing trace with hash 34789339, now seen corresponding path program 1 times [2022-11-26 00:43:55,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:43:55,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422374773] [2022-11-26 00:43:55,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:43:55,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:43:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:43:55,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:43:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:43:55,452 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:43:55,452 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:43:55,453 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location qrcu_updaterErr2ASSERT_VIOLATIONDATA_RACE (109 of 110 remaining) [2022-11-26 00:43:55,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE (108 of 110 remaining) [2022-11-26 00:43:55,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE (107 of 110 remaining) [2022-11-26 00:43:55,459 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (106 of 110 remaining) [2022-11-26 00:43:55,460 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err2ASSERT_VIOLATIONDATA_RACE (105 of 110 remaining) [2022-11-26 00:43:55,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err3ASSERT_VIOLATIONDATA_RACE (104 of 110 remaining) [2022-11-26 00:43:55,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err8ASSERT_VIOLATIONDATA_RACE (103 of 110 remaining) [2022-11-26 00:43:55,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err4ASSERT_VIOLATIONDATA_RACE (102 of 110 remaining) [2022-11-26 00:43:55,461 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err5ASSERT_VIOLATIONDATA_RACE (101 of 110 remaining) [2022-11-26 00:43:55,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err6ASSERT_VIOLATIONDATA_RACE (100 of 110 remaining) [2022-11-26 00:43:55,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err11ASSERT_VIOLATIONDATA_RACE (99 of 110 remaining) [2022-11-26 00:43:55,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err9ASSERT_VIOLATIONDATA_RACE (98 of 110 remaining) [2022-11-26 00:43:55,462 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err10ASSERT_VIOLATIONDATA_RACE (97 of 110 remaining) [2022-11-26 00:43:55,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err12ASSERT_VIOLATIONDATA_RACE (96 of 110 remaining) [2022-11-26 00:43:55,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE (95 of 110 remaining) [2022-11-26 00:43:55,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE (94 of 110 remaining) [2022-11-26 00:43:55,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (93 of 110 remaining) [2022-11-26 00:43:55,463 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err2ASSERT_VIOLATIONDATA_RACE (92 of 110 remaining) [2022-11-26 00:43:55,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err3ASSERT_VIOLATIONDATA_RACE (91 of 110 remaining) [2022-11-26 00:43:55,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE (90 of 110 remaining) [2022-11-26 00:43:55,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err4ASSERT_VIOLATIONDATA_RACE (89 of 110 remaining) [2022-11-26 00:43:55,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err5ASSERT_VIOLATIONDATA_RACE (88 of 110 remaining) [2022-11-26 00:43:55,464 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err6ASSERT_VIOLATIONDATA_RACE (87 of 110 remaining) [2022-11-26 00:43:55,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err9ASSERT_VIOLATIONDATA_RACE (86 of 110 remaining) [2022-11-26 00:43:55,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err10ASSERT_VIOLATIONDATA_RACE (85 of 110 remaining) [2022-11-26 00:43:55,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err11ASSERT_VIOLATIONDATA_RACE (84 of 110 remaining) [2022-11-26 00:43:55,465 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err12ASSERT_VIOLATIONDATA_RACE (83 of 110 remaining) [2022-11-26 00:43:55,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr0ASSERT_VIOLATIONDATA_RACE (82 of 110 remaining) [2022-11-26 00:43:55,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr1ASSERT_VIOLATIONDATA_RACE (81 of 110 remaining) [2022-11-26 00:43:55,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr2ASSERT_VIOLATIONDATA_RACE (80 of 110 remaining) [2022-11-26 00:43:55,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr4ASSERT_VIOLATIONDATA_RACE (79 of 110 remaining) [2022-11-26 00:43:55,466 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr3ASSERT_VIOLATIONDATA_RACE (78 of 110 remaining) [2022-11-26 00:43:55,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr5ASSERT_VIOLATIONDATA_RACE (77 of 110 remaining) [2022-11-26 00:43:55,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr24ASSERT_VIOLATIONDATA_RACE (76 of 110 remaining) [2022-11-26 00:43:55,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr25ASSERT_VIOLATIONDATA_RACE (75 of 110 remaining) [2022-11-26 00:43:55,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr6ASSERT_VIOLATIONDATA_RACE (74 of 110 remaining) [2022-11-26 00:43:55,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr8ASSERT_VIOLATIONDATA_RACE (73 of 110 remaining) [2022-11-26 00:43:55,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr10ASSERT_VIOLATIONDATA_RACE (72 of 110 remaining) [2022-11-26 00:43:55,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr7ASSERT_VIOLATIONDATA_RACE (71 of 110 remaining) [2022-11-26 00:43:55,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr9ASSERT_VIOLATIONDATA_RACE (70 of 110 remaining) [2022-11-26 00:43:55,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr11ASSERT_VIOLATIONDATA_RACE (69 of 110 remaining) [2022-11-26 00:43:55,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr16ASSERT_VIOLATIONDATA_RACE (68 of 110 remaining) [2022-11-26 00:43:55,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr12ASSERT_VIOLATIONDATA_RACE (67 of 110 remaining) [2022-11-26 00:43:55,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr17ASSERT_VIOLATIONDATA_RACE (66 of 110 remaining) [2022-11-26 00:43:55,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr13ASSERT_VIOLATIONDATA_RACE (65 of 110 remaining) [2022-11-26 00:43:55,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr18ASSERT_VIOLATIONDATA_RACE (64 of 110 remaining) [2022-11-26 00:43:55,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr14ASSERT_VIOLATIONDATA_RACE (63 of 110 remaining) [2022-11-26 00:43:55,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr19ASSERT_VIOLATIONDATA_RACE (62 of 110 remaining) [2022-11-26 00:43:55,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr15ASSERT_VIOLATIONDATA_RACE (61 of 110 remaining) [2022-11-26 00:43:55,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr20ASSERT_VIOLATIONDATA_RACE (60 of 110 remaining) [2022-11-26 00:43:55,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr21ASSERT_VIOLATIONDATA_RACE (59 of 110 remaining) [2022-11-26 00:43:55,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr22ASSERT_VIOLATIONDATA_RACE (58 of 110 remaining) [2022-11-26 00:43:55,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr23ASSERT_VIOLATIONDATA_RACE (57 of 110 remaining) [2022-11-26 00:43:55,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 110 remaining) [2022-11-26 00:43:55,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 110 remaining) [2022-11-26 00:43:55,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 110 remaining) [2022-11-26 00:43:55,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 110 remaining) [2022-11-26 00:43:55,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 110 remaining) [2022-11-26 00:43:55,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 110 remaining) [2022-11-26 00:43:55,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE (50 of 110 remaining) [2022-11-26 00:43:55,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE (49 of 110 remaining) [2022-11-26 00:43:55,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (48 of 110 remaining) [2022-11-26 00:43:55,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err2ASSERT_VIOLATIONDATA_RACE (47 of 110 remaining) [2022-11-26 00:43:55,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err3ASSERT_VIOLATIONDATA_RACE (46 of 110 remaining) [2022-11-26 00:43:55,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err8ASSERT_VIOLATIONDATA_RACE (45 of 110 remaining) [2022-11-26 00:43:55,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err4ASSERT_VIOLATIONDATA_RACE (44 of 110 remaining) [2022-11-26 00:43:55,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err5ASSERT_VIOLATIONDATA_RACE (43 of 110 remaining) [2022-11-26 00:43:55,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err6ASSERT_VIOLATIONDATA_RACE (42 of 110 remaining) [2022-11-26 00:43:55,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err11ASSERT_VIOLATIONDATA_RACE (41 of 110 remaining) [2022-11-26 00:43:55,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err9ASSERT_VIOLATIONDATA_RACE (40 of 110 remaining) [2022-11-26 00:43:55,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err10ASSERT_VIOLATIONDATA_RACE (39 of 110 remaining) [2022-11-26 00:43:55,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err12ASSERT_VIOLATIONDATA_RACE (38 of 110 remaining) [2022-11-26 00:43:55,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE (37 of 110 remaining) [2022-11-26 00:43:55,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE (36 of 110 remaining) [2022-11-26 00:43:55,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (35 of 110 remaining) [2022-11-26 00:43:55,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err2ASSERT_VIOLATIONDATA_RACE (34 of 110 remaining) [2022-11-26 00:43:55,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err3ASSERT_VIOLATIONDATA_RACE (33 of 110 remaining) [2022-11-26 00:43:55,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE (32 of 110 remaining) [2022-11-26 00:43:55,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err4ASSERT_VIOLATIONDATA_RACE (31 of 110 remaining) [2022-11-26 00:43:55,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err5ASSERT_VIOLATIONDATA_RACE (30 of 110 remaining) [2022-11-26 00:43:55,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err6ASSERT_VIOLATIONDATA_RACE (29 of 110 remaining) [2022-11-26 00:43:55,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err9ASSERT_VIOLATIONDATA_RACE (28 of 110 remaining) [2022-11-26 00:43:55,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err10ASSERT_VIOLATIONDATA_RACE (27 of 110 remaining) [2022-11-26 00:43:55,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err11ASSERT_VIOLATIONDATA_RACE (26 of 110 remaining) [2022-11-26 00:43:55,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err12ASSERT_VIOLATIONDATA_RACE (25 of 110 remaining) [2022-11-26 00:43:55,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr0ASSERT_VIOLATIONDATA_RACE (24 of 110 remaining) [2022-11-26 00:43:55,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr1ASSERT_VIOLATIONDATA_RACE (23 of 110 remaining) [2022-11-26 00:43:55,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr4ASSERT_VIOLATIONDATA_RACE (22 of 110 remaining) [2022-11-26 00:43:55,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr3ASSERT_VIOLATIONDATA_RACE (21 of 110 remaining) [2022-11-26 00:43:55,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr5ASSERT_VIOLATIONDATA_RACE (20 of 110 remaining) [2022-11-26 00:43:55,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr24ASSERT_VIOLATIONDATA_RACE (19 of 110 remaining) [2022-11-26 00:43:55,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr25ASSERT_VIOLATIONDATA_RACE (18 of 110 remaining) [2022-11-26 00:43:55,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr6ASSERT_VIOLATIONDATA_RACE (17 of 110 remaining) [2022-11-26 00:43:55,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr8ASSERT_VIOLATIONDATA_RACE (16 of 110 remaining) [2022-11-26 00:43:55,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr10ASSERT_VIOLATIONDATA_RACE (15 of 110 remaining) [2022-11-26 00:43:55,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr7ASSERT_VIOLATIONDATA_RACE (14 of 110 remaining) [2022-11-26 00:43:55,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr9ASSERT_VIOLATIONDATA_RACE (13 of 110 remaining) [2022-11-26 00:43:55,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr11ASSERT_VIOLATIONDATA_RACE (12 of 110 remaining) [2022-11-26 00:43:55,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr16ASSERT_VIOLATIONDATA_RACE (11 of 110 remaining) [2022-11-26 00:43:55,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr12ASSERT_VIOLATIONDATA_RACE (10 of 110 remaining) [2022-11-26 00:43:55,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr17ASSERT_VIOLATIONDATA_RACE (9 of 110 remaining) [2022-11-26 00:43:55,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr13ASSERT_VIOLATIONDATA_RACE (8 of 110 remaining) [2022-11-26 00:43:55,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr18ASSERT_VIOLATIONDATA_RACE (7 of 110 remaining) [2022-11-26 00:43:55,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr14ASSERT_VIOLATIONDATA_RACE (6 of 110 remaining) [2022-11-26 00:43:55,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr19ASSERT_VIOLATIONDATA_RACE (5 of 110 remaining) [2022-11-26 00:43:55,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr15ASSERT_VIOLATIONDATA_RACE (4 of 110 remaining) [2022-11-26 00:43:55,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr20ASSERT_VIOLATIONDATA_RACE (3 of 110 remaining) [2022-11-26 00:43:55,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr21ASSERT_VIOLATIONDATA_RACE (2 of 110 remaining) [2022-11-26 00:43:55,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr22ASSERT_VIOLATIONDATA_RACE (1 of 110 remaining) [2022-11-26 00:43:55,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr23ASSERT_VIOLATIONDATA_RACE (0 of 110 remaining) [2022-11-26 00:43:55,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-26 00:43:55,489 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:43:55,498 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:43:55,498 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:43:55,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:43:55 BasicIcfg [2022-11-26 00:43:55,570 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:43:55,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:43:55,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:43:55,574 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:43:55,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:43:02" (3/4) ... [2022-11-26 00:43:55,578 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:43:55,578 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:43:55,579 INFO L158 Benchmark]: Toolchain (without parser) took 55214.01ms. Allocated memory was 163.6MB in the beginning and 13.8GB in the end (delta: 13.6GB). Free memory was 132.0MB in the beginning and 10.9GB in the end (delta: -10.7GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2022-11-26 00:43:55,579 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 117.4MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:43:55,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 576.87ms. Allocated memory is still 163.6MB. Free memory was 132.0MB in the beginning and 109.2MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-26 00:43:55,580 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.81ms. Allocated memory is still 163.6MB. Free memory was 109.2MB in the beginning and 105.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:43:55,580 INFO L158 Benchmark]: Boogie Preprocessor took 47.26ms. Allocated memory is still 163.6MB. Free memory was 105.8MB in the beginning and 103.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:43:55,581 INFO L158 Benchmark]: RCFGBuilder took 1801.56ms. Allocated memory is still 163.6MB. Free memory was 103.7MB in the beginning and 108.8MB in the end (delta: -5.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-26 00:43:55,581 INFO L158 Benchmark]: TraceAbstraction took 52711.55ms. Allocated memory was 163.6MB in the beginning and 13.8GB in the end (delta: 13.6GB). Free memory was 108.8MB in the beginning and 10.9GB in the end (delta: -10.8GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2022-11-26 00:43:55,581 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 13.8GB. Free memory is still 10.9GB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:43:55,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 117.4MB. Free memory is still 69.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 576.87ms. Allocated memory is still 163.6MB. Free memory was 132.0MB in the beginning and 109.2MB in the end (delta: 22.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.81ms. Allocated memory is still 163.6MB. Free memory was 109.2MB in the beginning and 105.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.26ms. Allocated memory is still 163.6MB. Free memory was 105.8MB in the beginning and 103.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1801.56ms. Allocated memory is still 163.6MB. Free memory was 103.7MB in the beginning and 108.8MB in the end (delta: -5.1MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * TraceAbstraction took 52711.55ms. Allocated memory was 163.6MB in the beginning and 13.8GB in the end (delta: 13.6GB). Free memory was 108.8MB in the beginning and 10.9GB in the end (delta: -10.8GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 13.8GB. Free memory is still 10.9GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 13.4s, 315 PlacesBefore, 159 PlacesAfterwards, 323 TransitionsBefore, 165 TransitionsAfterwards, 42882 CoEnabledTransitionPairs, 6 FixpointIterations, 40 TrivialSequentialCompositions, 232 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 2 ChoiceCompositions, 286 TotalNumberOfCompositions, 163756 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 82670, independent: 81365, independent conditional: 0, independent unconditional: 81365, dependent: 1305, dependent conditional: 0, dependent unconditional: 1305, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 33834, independent: 33361, independent conditional: 0, independent unconditional: 33361, dependent: 473, dependent conditional: 0, dependent unconditional: 473, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 33834, independent: 30672, independent conditional: 0, independent unconditional: 30672, dependent: 3162, dependent conditional: 0, dependent unconditional: 3162, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3162, independent: 2689, independent conditional: 0, independent unconditional: 2689, dependent: 473, dependent conditional: 0, dependent unconditional: 473, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 3467, independent: 1980, independent conditional: 0, independent unconditional: 1980, dependent: 1486, dependent conditional: 0, dependent unconditional: 1486, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 82670, independent: 48004, independent conditional: 0, independent unconditional: 48004, dependent: 832, dependent conditional: 0, dependent unconditional: 832, unknown: 33834, unknown conditional: 0, unknown unconditional: 33834] , Statistics on independence cache: Total cache size (in pairs): 7901, Positive cache size: 7742, Positive conditional cache size: 0, Positive unconditional cache size: 7742, Negative cache size: 159, Negative conditional cache size: 0, Negative unconditional cache size: 159, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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 - DataRaceFoundResult [Line: 766]: Data race detected Data race detected The following path leads to a data race: [L689] 0 int idx=0; [L690] 0 int ctr1=1, ctr2=0; [L691] 0 int readerprogress1=0, readerprogress2=0; [L692] 0 pthread_mutex_t mutex; [L782] 0 pthread_t t1, t2, t3; [L784] FCALL, FORK 0 pthread_create(&t1, 0, qrcu_reader1, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, pthread_create(&t1, 0, qrcu_reader1, 0)=-1, readerprogress1=0, readerprogress2=0, t1={7:0}, t2={5:0}, t3={6:0}] [L724] 1 int myidx; VAL [arg={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0] [L725] COND TRUE 1 1 [L726] 1 myidx = idx [L727] COND TRUE 1 __VERIFIER_nondet_int() [L785] FCALL, FORK 0 pthread_create(&t2, 0, qrcu_reader2, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, pthread_create(&t2, 0, qrcu_reader2, 0)=0, readerprogress1=0, readerprogress2=0, t1={7:0}, t2={5:0}, t3={6:0}] [L786] FCALL, FORK 0 pthread_create(&t3, 0, qrcu_updater, 0) VAL [ctr1=1, ctr2=0, idx=0, mutex={3:0}, pthread_create(&t3, 0, qrcu_updater, 0)=1, readerprogress1=0, readerprogress2=0, t1={7:0}, t2={5:0}, t3={6:0}] [L762] 3 int i; [L763] 3 int readerstart1=__VERIFIER_nondet_int(), readerstart2=__VERIFIER_nondet_int(); [L763] 3 int readerstart1=__VERIFIER_nondet_int(), readerstart2=__VERIFIER_nondet_int(); [L764] 3 int sum; [L765] CALL 3 __VERIFIER_atomic_take_snapshot(readerstart1, readerstart2) [L706] 3 readerstart1 = readerprogress1 [L707] 3 readerstart2 = readerprogress2 [L765] RET 3 __VERIFIER_atomic_take_snapshot(readerstart1, readerstart2) [L766] COND TRUE 3 __VERIFIER_nondet_int() [L766] 3 sum = ctr1 VAL [arg={0:0}, arg={0:0}, ctr1=1, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0, readerstart1=-2, readerstart2=-3] [L728] CALL 1 __VERIFIER_atomic_use1(myidx) [L694] EXPR 1 myidx <= 0 && ctr1>0 [L694] EXPR 1 ctr1>0 [L694] EXPR 1 myidx <= 0 && ctr1>0 [L694] CALL 1 assume_abort_if_not(myidx <= 0 && ctr1>0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(myidx <= 0 && ctr1>0) [L695] 1 ctr1++ [L728] RET 1 __VERIFIER_atomic_use1(myidx) [L766] 3 sum = ctr1 VAL [arg={0:0}, arg={0:0}, ctr1=2, ctr2=0, idx=0, mutex={3:0}, readerprogress1=0, readerprogress2=0, readerstart1=-2, readerstart2=-3] Now there is a data race on ~ctr1~0 between C: ctr1++ [695] and C: sum = ctr1 [766] - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 737]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 738]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 745]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 756]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 757]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 766]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 767]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 771]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 772]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 773]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 773]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 774]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 787]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 788]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 789]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 784]: 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: 785]: 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: 786]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 531 locations, 110 error locations. Started 1 CEGAR loops. OverallTime: 52.4s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 21.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 654 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 654 mSDsluCounter, 998 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 321 mSDsCounter, 64 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1247 IncrementalHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 64 mSolverCounterUnsat, 677 mSDtfsCounter, 1247 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=180922occurred in iteration=0, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 18.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 46336 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [2022-11-26 00:43:55,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80a89478-a9c3-437e-a2f2-8c17ed30f070/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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