./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 b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/qrcu-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-b5237d8 [2022-11-22 00:35:52,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:35:52,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:35:52,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:35:52,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:35:52,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:35:52,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:35:52,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:35:52,845 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:35:52,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:35:52,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:35:52,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:35:52,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:35:52,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:35:52,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:35:52,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:35:52,869 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:35:52,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:35:52,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:35:52,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:35:52,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:35:52,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:35:52,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:35:52,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:35:52,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:35:52,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:35:52,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:35:52,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:35:52,897 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:35:52,898 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:35:52,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:35:52,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:35:52,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:35:52,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:35:52,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:35:52,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:35:52,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:35:52,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:35:52,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:35:52,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:35:52,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:35:52,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 00:35:52,952 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:35:52,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:35:52,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:35:52,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:35:52,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:35:52,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:35:52,955 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:35:52,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:35:52,955 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:35:52,955 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:35:52,956 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:35:52,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:35:52,957 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:35:52,957 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:35:52,957 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:35:52,957 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:35:52,957 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:35:52,958 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:35:52,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:35:52,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:35:52,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:35:52,959 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:35:52,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:35:52,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:35:52,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:35:52,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:35:52,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:35:52,961 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 00:35:52,961 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:35:52,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:35:52,961 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:35:52,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:35:52,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:35:52,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:35:52,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:52,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:35:52,964 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:35:52,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:35:52,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:35:52,964 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:35:52,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:35:52,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:35:52,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:35:52,965 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_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d1980d3c26a5811df2d100379a9d31e1e9ec963bc59bfe660be33ada51bfb014 [2022-11-22 00:35:53,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:35:53,224 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:35:53,226 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:35:53,227 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:35:53,228 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:35:53,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-atomic/qrcu-2.i [2022-11-22 00:35:56,253 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:35:56,540 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:35:56,545 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/sv-benchmarks/c/pthread-atomic/qrcu-2.i [2022-11-22 00:35:56,562 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/data/025410d74/716283491b664bb28a707644ce2388cf/FLAG751a86e44 [2022-11-22 00:35:56,583 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/data/025410d74/716283491b664bb28a707644ce2388cf [2022-11-22 00:35:56,585 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:35:56,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:35:56,591 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:56,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:35:56,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:35:56,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:56" (1/1) ... [2022-11-22 00:35:56,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1bc756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:56, skipping insertion in model container [2022-11-22 00:35:56,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:35:56" (1/1) ... [2022-11-22 00:35:56,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:35:56,681 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:35:56,992 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_48d48aab-b8de-46df-aa9b-e055056c44d5/sv-benchmarks/c/pthread-atomic/qrcu-2.i[30690,30703] [2022-11-22 00:35:56,995 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_48d48aab-b8de-46df-aa9b-e055056c44d5/sv-benchmarks/c/pthread-atomic/qrcu-2.i[30912,30925] [2022-11-22 00:35:57,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:57,026 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:35:57,063 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_48d48aab-b8de-46df-aa9b-e055056c44d5/sv-benchmarks/c/pthread-atomic/qrcu-2.i[30690,30703] [2022-11-22 00:35:57,064 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_48d48aab-b8de-46df-aa9b-e055056c44d5/sv-benchmarks/c/pthread-atomic/qrcu-2.i[30912,30925] [2022-11-22 00:35:57,079 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:35:57,113 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:35:57,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57 WrapperNode [2022-11-22 00:35:57,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:35:57,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:57,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:35:57,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:35:57,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,197 INFO L138 Inliner]: procedures = 177, calls = 44, calls flagged for inlining = 15, calls inlined = 17, statements flattened = 441 [2022-11-22 00:35:57,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:35:57,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:35:57,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:35:57,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:35:57,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,246 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,276 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:35:57,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:35:57,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:35:57,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:35:57,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (1/1) ... [2022-11-22 00:35:57,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:35:57,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:35:57,334 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:35:57,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:35:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader1 [2022-11-22 00:35:57,379 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader1 [2022-11-22 00:35:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_reader2 [2022-11-22 00:35:57,380 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_reader2 [2022-11-22 00:35:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:35:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:35:57,380 INFO L130 BoogieDeclarations]: Found specification of procedure qrcu_updater [2022-11-22 00:35:57,381 INFO L138 BoogieDeclarations]: Found implementation of procedure qrcu_updater [2022-11-22 00:35:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-22 00:35:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:35:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:35:57,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:35:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:35:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:35:57,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:35:57,384 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 00:35:57,590 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:35:57,592 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:35:58,380 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:35:58,795 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:35:58,795 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 00:35:58,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:58 BoogieIcfgContainer [2022-11-22 00:35:58,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:35:58,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:35:58,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:35:58,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:35:58,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:35:56" (1/3) ... [2022-11-22 00:35:58,823 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5182e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:58, skipping insertion in model container [2022-11-22 00:35:58,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:35:57" (2/3) ... [2022-11-22 00:35:58,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5182e2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:35:58, skipping insertion in model container [2022-11-22 00:35:58,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:58" (3/3) ... [2022-11-22 00:35:58,826 INFO L112 eAbstractionObserver]: Analyzing ICFG qrcu-2.i [2022-11-22 00:35:58,840 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 00:35:58,850 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:35:58,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2022-11-22 00:35:58,854 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 00:35:59,001 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-22 00:35:59,052 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 00:35:59,083 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 315 places, 323 transitions, 670 flow [2022-11-22 00:35:59,085 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 315 places, 323 transitions, 670 flow [2022-11-22 00:35:59,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 315 places, 323 transitions, 670 flow [2022-11-22 00:35:59,277 INFO L130 PetriNetUnfolder]: 18/320 cut-off events. [2022-11-22 00:35:59,278 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-22 00:35:59,291 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. [2022-11-22 00:35:59,315 INFO L119 LiptonReduction]: Number of co-enabled transitions 42882 [2022-11-22 00:36:10,895 INFO L134 LiptonReduction]: Checked pairs total: 163756 [2022-11-22 00:36:10,895 INFO L136 LiptonReduction]: Total number of compositions: 286 [2022-11-22 00:36:10,907 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 159 places, 165 transitions, 354 flow [2022-11-22 00:36:17,718 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) [2022-11-22 00:36:17,769 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:36:17,777 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;@56988bd0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:36:17,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 110 error locations. [2022-11-22 00:36:17,996 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) [2022-11-22 00:36:18,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 00:36:18,000 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:18,001 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 00:36:18,001 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)] === [2022-11-22 00:36:18,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:18,007 INFO L85 PathProgramCache]: Analyzing trace with hash 57218146, now seen corresponding path program 1 times [2022-11-22 00:36:18,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:18,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579911789] [2022-11-22 00:36:18,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:18,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:18,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:18,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:18,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:18,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579911789] [2022-11-22 00:36:18,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579911789] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:18,201 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:18,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 00:36:18,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423891951] [2022-11-22 00:36:18,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:18,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 00:36:18,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:18,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 00:36:18,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 00:36:18,551 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) [2022-11-22 00:36:20,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:20,175 INFO L93 Difference]: Finished difference Result 46049 states and 168896 transitions. [2022-11-22 00:36:20,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 00:36:20,178 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 [2022-11-22 00:36:20,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:20,657 INFO L225 Difference]: With dead ends: 46049 [2022-11-22 00:36:20,657 INFO L226 Difference]: Without dead ends: 45994 [2022-11-22 00:36:20,659 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 [2022-11-22 00:36:20,662 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:36:20,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:36:21,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45994 states. [2022-11-22 00:36:22,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45994 to 45994. [2022-11-22 00:36:23,028 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) [2022-11-22 00:36:23,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45994 states to 45994 states and 168694 transitions. [2022-11-22 00:36:23,337 INFO L78 Accepts]: Start accepts. Automaton has 45994 states and 168694 transitions. Word has length 4 [2022-11-22 00:36:23,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:23,338 INFO L495 AbstractCegarLoop]: Abstraction has 45994 states and 168694 transitions. [2022-11-22 00:36:23,338 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) [2022-11-22 00:36:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 45994 states and 168694 transitions. [2022-11-22 00:36:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:36:23,339 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:23,339 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:36:23,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:36:23,340 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)] === [2022-11-22 00:36:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:23,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1773759098, now seen corresponding path program 1 times [2022-11-22 00:36:23,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:23,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231581524] [2022-11-22 00:36:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:23,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:23,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:23,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231581524] [2022-11-22 00:36:23,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231581524] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:23,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:23,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:36:23,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503391582] [2022-11-22 00:36:23,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:23,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:36:23,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:23,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:36:23,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:36:23,429 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) [2022-11-22 00:36:24,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:24,481 INFO L93 Difference]: Finished difference Result 53414 states and 193198 transitions. [2022-11-22 00:36:24,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:36:24,482 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 [2022-11-22 00:36:24,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:24,864 INFO L225 Difference]: With dead ends: 53414 [2022-11-22 00:36:24,865 INFO L226 Difference]: Without dead ends: 53414 [2022-11-22 00:36:24,865 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 [2022-11-22 00:36:24,866 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 116 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-22 00:36:24,873 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] [2022-11-22 00:36:25,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53414 states. [2022-11-22 00:36:26,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53414 to 43544. [2022-11-22 00:36:26,559 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) [2022-11-22 00:36:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43544 states to 43544 states and 158841 transitions. [2022-11-22 00:36:27,232 INFO L78 Accepts]: Start accepts. Automaton has 43544 states and 158841 transitions. Word has length 5 [2022-11-22 00:36:27,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:27,233 INFO L495 AbstractCegarLoop]: Abstraction has 43544 states and 158841 transitions. [2022-11-22 00:36:27,234 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) [2022-11-22 00:36:27,235 INFO L276 IsEmpty]: Start isEmpty. Operand 43544 states and 158841 transitions. [2022-11-22 00:36:27,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:36:27,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:27,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:27,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:36:27,252 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)] === [2022-11-22 00:36:27,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:27,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1010203020, now seen corresponding path program 1 times [2022-11-22 00:36:27,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:27,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535372530] [2022-11-22 00:36:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:27,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:27,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:27,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:27,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535372530] [2022-11-22 00:36:27,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535372530] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:27,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:27,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:36:27,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070663672] [2022-11-22 00:36:27,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:27,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:36:27,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:27,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:36:27,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:36:27,417 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) [2022-11-22 00:36:28,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:28,224 INFO L93 Difference]: Finished difference Result 63278 states and 229139 transitions. [2022-11-22 00:36:28,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:36:28,225 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 [2022-11-22 00:36:28,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:28,572 INFO L225 Difference]: With dead ends: 63278 [2022-11-22 00:36:28,572 INFO L226 Difference]: Without dead ends: 63260 [2022-11-22 00:36:28,573 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 [2022-11-22 00:36:28,574 INFO L413 NwaCegarLoop]: 65 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, 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:36:28,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 108 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:36:28,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63260 states. [2022-11-22 00:36:30,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63260 to 46394. [2022-11-22 00:36:30,319 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) [2022-11-22 00:36:30,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46394 states to 46394 states and 168928 transitions. [2022-11-22 00:36:31,005 INFO L78 Accepts]: Start accepts. Automaton has 46394 states and 168928 transitions. Word has length 8 [2022-11-22 00:36:31,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:31,006 INFO L495 AbstractCegarLoop]: Abstraction has 46394 states and 168928 transitions. [2022-11-22 00:36:31,006 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) [2022-11-22 00:36:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 46394 states and 168928 transitions. [2022-11-22 00:36:31,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 00:36:31,007 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:31,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:31,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 00:36:31,008 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)] === [2022-11-22 00:36:31,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:31,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1010203049, now seen corresponding path program 1 times [2022-11-22 00:36:31,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:31,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785393289] [2022-11-22 00:36:31,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:31,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:31,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:31,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:31,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785393289] [2022-11-22 00:36:31,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785393289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:31,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:31,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:36:31,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559475516] [2022-11-22 00:36:31,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:31,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:36:31,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:31,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:36:31,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:36:31,055 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) [2022-11-22 00:36:31,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:31,633 INFO L93 Difference]: Finished difference Result 65960 states and 238282 transitions. [2022-11-22 00:36:31,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:36:31,633 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 [2022-11-22 00:36:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:31,963 INFO L225 Difference]: With dead ends: 65960 [2022-11-22 00:36:31,964 INFO L226 Difference]: Without dead ends: 65924 [2022-11-22 00:36:31,964 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 [2022-11-22 00:36:31,965 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 [2022-11-22 00:36:31,965 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] [2022-11-22 00:36:32,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65924 states. [2022-11-22 00:36:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65924 to 49226. [2022-11-22 00:36:34,092 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) [2022-11-22 00:36:34,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49226 states to 49226 states and 178958 transitions. [2022-11-22 00:36:34,331 INFO L78 Accepts]: Start accepts. Automaton has 49226 states and 178958 transitions. Word has length 8 [2022-11-22 00:36:34,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:34,331 INFO L495 AbstractCegarLoop]: Abstraction has 49226 states and 178958 transitions. [2022-11-22 00:36:34,331 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) [2022-11-22 00:36:34,332 INFO L276 IsEmpty]: Start isEmpty. Operand 49226 states and 178958 transitions. [2022-11-22 00:36:34,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:36:34,333 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:34,333 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:34,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 00:36:34,334 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)] === [2022-11-22 00:36:34,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:34,334 INFO L85 PathProgramCache]: Analyzing trace with hash -686083523, now seen corresponding path program 1 times [2022-11-22 00:36:34,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:34,335 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551967228] [2022-11-22 00:36:34,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:34,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:34,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:34,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:34,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551967228] [2022-11-22 00:36:34,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551967228] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:34,427 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:34,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:36:34,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631671309] [2022-11-22 00:36:34,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:34,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:36:34,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:34,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:36:34,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:36:34,430 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) [2022-11-22 00:36:34,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:34,899 INFO L93 Difference]: Finished difference Result 45746 states and 162236 transitions. [2022-11-22 00:36:34,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:36:34,900 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 [2022-11-22 00:36:34,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:35,090 INFO L225 Difference]: With dead ends: 45746 [2022-11-22 00:36:35,090 INFO L226 Difference]: Without dead ends: 45722 [2022-11-22 00:36:35,090 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 [2022-11-22 00:36:35,091 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:36:35,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 82 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:36:35,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45722 states. [2022-11-22 00:36:36,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45722 to 45122. [2022-11-22 00:36:36,551 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) [2022-11-22 00:36:36,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45122 states to 45122 states and 160562 transitions. [2022-11-22 00:36:36,690 INFO L78 Accepts]: Start accepts. Automaton has 45122 states and 160562 transitions. Word has length 10 [2022-11-22 00:36:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:36,690 INFO L495 AbstractCegarLoop]: Abstraction has 45122 states and 160562 transitions. [2022-11-22 00:36:36,690 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) [2022-11-22 00:36:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 45122 states and 160562 transitions. [2022-11-22 00:36:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:36:36,691 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:36,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:36,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 00:36:36,692 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)] === [2022-11-22 00:36:36,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:36,693 INFO L85 PathProgramCache]: Analyzing trace with hash -697165775, now seen corresponding path program 1 times [2022-11-22 00:36:36,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:36,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053302951] [2022-11-22 00:36:36,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:36,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:36,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:36,724 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:36,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053302951] [2022-11-22 00:36:36,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053302951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:36,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:36,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:36:36,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096815834] [2022-11-22 00:36:36,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:36,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:36:36,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:36,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:36:36,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:36:36,727 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) [2022-11-22 00:36:37,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:37,819 INFO L93 Difference]: Finished difference Result 49452 states and 176048 transitions. [2022-11-22 00:36:37,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:36:37,830 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 [2022-11-22 00:36:37,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:38,051 INFO L225 Difference]: With dead ends: 49452 [2022-11-22 00:36:38,052 INFO L226 Difference]: Without dead ends: 49452 [2022-11-22 00:36:38,052 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 [2022-11-22 00:36:38,053 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 101 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-22 00:36:38,053 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] [2022-11-22 00:36:38,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49452 states. [2022-11-22 00:36:39,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49452 to 47150. [2022-11-22 00:36:39,358 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) [2022-11-22 00:36:39,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47150 states to 47150 states and 167787 transitions. [2022-11-22 00:36:39,496 INFO L78 Accepts]: Start accepts. Automaton has 47150 states and 167787 transitions. Word has length 10 [2022-11-22 00:36:39,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:39,496 INFO L495 AbstractCegarLoop]: Abstraction has 47150 states and 167787 transitions. [2022-11-22 00:36:39,496 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) [2022-11-22 00:36:39,496 INFO L276 IsEmpty]: Start isEmpty. Operand 47150 states and 167787 transitions. [2022-11-22 00:36:39,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 00:36:39,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:39,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:39,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 00:36:39,499 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)] === [2022-11-22 00:36:39,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:39,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1019370894, now seen corresponding path program 1 times [2022-11-22 00:36:39,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:39,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092961756] [2022-11-22 00:36:39,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:39,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:39,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:39,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:39,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092961756] [2022-11-22 00:36:39,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092961756] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:39,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:39,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:36:39,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111047653] [2022-11-22 00:36:39,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:39,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:36:39,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:39,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:36:39,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:36:39,537 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) [2022-11-22 00:36:40,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:40,006 INFO L93 Difference]: Finished difference Result 49374 states and 175625 transitions. [2022-11-22 00:36:40,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:36:40,006 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 [2022-11-22 00:36:40,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:40,173 INFO L225 Difference]: With dead ends: 49374 [2022-11-22 00:36:40,173 INFO L226 Difference]: Without dead ends: 49374 [2022-11-22 00:36:40,173 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 [2022-11-22 00:36:40,174 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 100 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-11-22 00:36:40,174 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] [2022-11-22 00:36:40,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49374 states. [2022-11-22 00:36:41,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49374 to 49374. [2022-11-22 00:36:41,840 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) [2022-11-22 00:36:42,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49374 states to 49374 states and 175625 transitions. [2022-11-22 00:36:42,055 INFO L78 Accepts]: Start accepts. Automaton has 49374 states and 175625 transitions. Word has length 12 [2022-11-22 00:36:42,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:42,055 INFO L495 AbstractCegarLoop]: Abstraction has 49374 states and 175625 transitions. [2022-11-22 00:36:42,055 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) [2022-11-22 00:36:42,056 INFO L276 IsEmpty]: Start isEmpty. Operand 49374 states and 175625 transitions. [2022-11-22 00:36:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 00:36:42,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:42,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:42,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 00:36:42,058 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)] === [2022-11-22 00:36:42,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:42,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1197836315, now seen corresponding path program 1 times [2022-11-22 00:36:42,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:42,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672963123] [2022-11-22 00:36:42,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:42,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:36:42,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:36:42,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:36:42,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672963123] [2022-11-22 00:36:42,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672963123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:36:42,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:36:42,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:36:42,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618103366] [2022-11-22 00:36:42,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:36:42,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:36:42,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:36:42,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:36:42,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:36:42,136 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) [2022-11-22 00:36:43,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:36:43,298 INFO L93 Difference]: Finished difference Result 51426 states and 182915 transitions. [2022-11-22 00:36:43,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:36:43,299 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 [2022-11-22 00:36:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:36:43,494 INFO L225 Difference]: With dead ends: 51426 [2022-11-22 00:36:43,495 INFO L226 Difference]: Without dead ends: 51158 [2022-11-22 00:36:43,495 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 [2022-11-22 00:36:43,495 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 100 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2022-11-22 00:36:43,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 171 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-22 00:36:43,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51158 states. [2022-11-22 00:36:44,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51158 to 51158. [2022-11-22 00:36:44,909 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) [2022-11-22 00:36:45,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51158 states to 51158 states and 181743 transitions. [2022-11-22 00:36:45,068 INFO L78 Accepts]: Start accepts. Automaton has 51158 states and 181743 transitions. Word has length 13 [2022-11-22 00:36:45,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:36:45,068 INFO L495 AbstractCegarLoop]: Abstraction has 51158 states and 181743 transitions. [2022-11-22 00:36:45,069 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) [2022-11-22 00:36:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 51158 states and 181743 transitions. [2022-11-22 00:36:45,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 00:36:45,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:36:45,070 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:45,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 00:36:45,070 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)] === [2022-11-22 00:36:45,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:36:45,071 INFO L85 PathProgramCache]: Analyzing trace with hash 34789339, now seen corresponding path program 1 times [2022-11-22 00:36:45,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:36:45,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32816083] [2022-11-22 00:36:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:36:45,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:36:45,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:36:45,106 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:36:45,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:36:45,163 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:36:45,163 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:36:45,164 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location qrcu_updaterErr2ASSERT_VIOLATIONDATA_RACE (109 of 110 remaining) [2022-11-22 00:36:45,166 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE (108 of 110 remaining) [2022-11-22 00:36:45,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE (107 of 110 remaining) [2022-11-22 00:36:45,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (106 of 110 remaining) [2022-11-22 00:36:45,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err2ASSERT_VIOLATIONDATA_RACE (105 of 110 remaining) [2022-11-22 00:36:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err3ASSERT_VIOLATIONDATA_RACE (104 of 110 remaining) [2022-11-22 00:36:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err8ASSERT_VIOLATIONDATA_RACE (103 of 110 remaining) [2022-11-22 00:36:45,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err4ASSERT_VIOLATIONDATA_RACE (102 of 110 remaining) [2022-11-22 00:36:45,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err5ASSERT_VIOLATIONDATA_RACE (101 of 110 remaining) [2022-11-22 00:36:45,176 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err6ASSERT_VIOLATIONDATA_RACE (100 of 110 remaining) [2022-11-22 00:36:45,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err11ASSERT_VIOLATIONDATA_RACE (99 of 110 remaining) [2022-11-22 00:36:45,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err9ASSERT_VIOLATIONDATA_RACE (98 of 110 remaining) [2022-11-22 00:36:45,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err10ASSERT_VIOLATIONDATA_RACE (97 of 110 remaining) [2022-11-22 00:36:45,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err12ASSERT_VIOLATIONDATA_RACE (96 of 110 remaining) [2022-11-22 00:36:45,177 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE (95 of 110 remaining) [2022-11-22 00:36:45,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE (94 of 110 remaining) [2022-11-22 00:36:45,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (93 of 110 remaining) [2022-11-22 00:36:45,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err2ASSERT_VIOLATIONDATA_RACE (92 of 110 remaining) [2022-11-22 00:36:45,178 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err3ASSERT_VIOLATIONDATA_RACE (91 of 110 remaining) [2022-11-22 00:36:45,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE (90 of 110 remaining) [2022-11-22 00:36:45,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err4ASSERT_VIOLATIONDATA_RACE (89 of 110 remaining) [2022-11-22 00:36:45,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err5ASSERT_VIOLATIONDATA_RACE (88 of 110 remaining) [2022-11-22 00:36:45,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err6ASSERT_VIOLATIONDATA_RACE (87 of 110 remaining) [2022-11-22 00:36:45,179 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err9ASSERT_VIOLATIONDATA_RACE (86 of 110 remaining) [2022-11-22 00:36:45,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err10ASSERT_VIOLATIONDATA_RACE (85 of 110 remaining) [2022-11-22 00:36:45,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err11ASSERT_VIOLATIONDATA_RACE (84 of 110 remaining) [2022-11-22 00:36:45,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err12ASSERT_VIOLATIONDATA_RACE (83 of 110 remaining) [2022-11-22 00:36:45,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr0ASSERT_VIOLATIONDATA_RACE (82 of 110 remaining) [2022-11-22 00:36:45,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr1ASSERT_VIOLATIONDATA_RACE (81 of 110 remaining) [2022-11-22 00:36:45,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr2ASSERT_VIOLATIONDATA_RACE (80 of 110 remaining) [2022-11-22 00:36:45,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr4ASSERT_VIOLATIONDATA_RACE (79 of 110 remaining) [2022-11-22 00:36:45,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr3ASSERT_VIOLATIONDATA_RACE (78 of 110 remaining) [2022-11-22 00:36:45,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr5ASSERT_VIOLATIONDATA_RACE (77 of 110 remaining) [2022-11-22 00:36:45,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr24ASSERT_VIOLATIONDATA_RACE (76 of 110 remaining) [2022-11-22 00:36:45,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr25ASSERT_VIOLATIONDATA_RACE (75 of 110 remaining) [2022-11-22 00:36:45,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr6ASSERT_VIOLATIONDATA_RACE (74 of 110 remaining) [2022-11-22 00:36:45,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr8ASSERT_VIOLATIONDATA_RACE (73 of 110 remaining) [2022-11-22 00:36:45,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr10ASSERT_VIOLATIONDATA_RACE (72 of 110 remaining) [2022-11-22 00:36:45,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr7ASSERT_VIOLATIONDATA_RACE (71 of 110 remaining) [2022-11-22 00:36:45,182 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr9ASSERT_VIOLATIONDATA_RACE (70 of 110 remaining) [2022-11-22 00:36:45,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr11ASSERT_VIOLATIONDATA_RACE (69 of 110 remaining) [2022-11-22 00:36:45,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr16ASSERT_VIOLATIONDATA_RACE (68 of 110 remaining) [2022-11-22 00:36:45,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr12ASSERT_VIOLATIONDATA_RACE (67 of 110 remaining) [2022-11-22 00:36:45,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr17ASSERT_VIOLATIONDATA_RACE (66 of 110 remaining) [2022-11-22 00:36:45,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr13ASSERT_VIOLATIONDATA_RACE (65 of 110 remaining) [2022-11-22 00:36:45,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr18ASSERT_VIOLATIONDATA_RACE (64 of 110 remaining) [2022-11-22 00:36:45,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr14ASSERT_VIOLATIONDATA_RACE (63 of 110 remaining) [2022-11-22 00:36:45,183 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr19ASSERT_VIOLATIONDATA_RACE (62 of 110 remaining) [2022-11-22 00:36:45,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr15ASSERT_VIOLATIONDATA_RACE (61 of 110 remaining) [2022-11-22 00:36:45,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr20ASSERT_VIOLATIONDATA_RACE (60 of 110 remaining) [2022-11-22 00:36:45,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr21ASSERT_VIOLATIONDATA_RACE (59 of 110 remaining) [2022-11-22 00:36:45,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr22ASSERT_VIOLATIONDATA_RACE (58 of 110 remaining) [2022-11-22 00:36:45,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr23ASSERT_VIOLATIONDATA_RACE (57 of 110 remaining) [2022-11-22 00:36:45,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (56 of 110 remaining) [2022-11-22 00:36:45,184 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (55 of 110 remaining) [2022-11-22 00:36:45,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (54 of 110 remaining) [2022-11-22 00:36:45,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 110 remaining) [2022-11-22 00:36:45,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 110 remaining) [2022-11-22 00:36:45,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (51 of 110 remaining) [2022-11-22 00:36:45,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err0ASSERT_VIOLATIONDATA_RACE (50 of 110 remaining) [2022-11-22 00:36:45,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err7ASSERT_VIOLATIONDATA_RACE (49 of 110 remaining) [2022-11-22 00:36:45,185 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err1ASSERT_VIOLATIONDATA_RACE (48 of 110 remaining) [2022-11-22 00:36:45,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err2ASSERT_VIOLATIONDATA_RACE (47 of 110 remaining) [2022-11-22 00:36:45,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err3ASSERT_VIOLATIONDATA_RACE (46 of 110 remaining) [2022-11-22 00:36:45,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err8ASSERT_VIOLATIONDATA_RACE (45 of 110 remaining) [2022-11-22 00:36:45,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err4ASSERT_VIOLATIONDATA_RACE (44 of 110 remaining) [2022-11-22 00:36:45,186 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err5ASSERT_VIOLATIONDATA_RACE (43 of 110 remaining) [2022-11-22 00:36:45,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err6ASSERT_VIOLATIONDATA_RACE (42 of 110 remaining) [2022-11-22 00:36:45,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err11ASSERT_VIOLATIONDATA_RACE (41 of 110 remaining) [2022-11-22 00:36:45,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err9ASSERT_VIOLATIONDATA_RACE (40 of 110 remaining) [2022-11-22 00:36:45,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err10ASSERT_VIOLATIONDATA_RACE (39 of 110 remaining) [2022-11-22 00:36:45,187 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader1Err12ASSERT_VIOLATIONDATA_RACE (38 of 110 remaining) [2022-11-22 00:36:45,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err0ASSERT_VIOLATIONDATA_RACE (37 of 110 remaining) [2022-11-22 00:36:45,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err7ASSERT_VIOLATIONDATA_RACE (36 of 110 remaining) [2022-11-22 00:36:45,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err1ASSERT_VIOLATIONDATA_RACE (35 of 110 remaining) [2022-11-22 00:36:45,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err2ASSERT_VIOLATIONDATA_RACE (34 of 110 remaining) [2022-11-22 00:36:45,188 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err3ASSERT_VIOLATIONDATA_RACE (33 of 110 remaining) [2022-11-22 00:36:45,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err8ASSERT_VIOLATIONDATA_RACE (32 of 110 remaining) [2022-11-22 00:36:45,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err4ASSERT_VIOLATIONDATA_RACE (31 of 110 remaining) [2022-11-22 00:36:45,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err5ASSERT_VIOLATIONDATA_RACE (30 of 110 remaining) [2022-11-22 00:36:45,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err6ASSERT_VIOLATIONDATA_RACE (29 of 110 remaining) [2022-11-22 00:36:45,189 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err9ASSERT_VIOLATIONDATA_RACE (28 of 110 remaining) [2022-11-22 00:36:45,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err10ASSERT_VIOLATIONDATA_RACE (27 of 110 remaining) [2022-11-22 00:36:45,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err11ASSERT_VIOLATIONDATA_RACE (26 of 110 remaining) [2022-11-22 00:36:45,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_reader2Err12ASSERT_VIOLATIONDATA_RACE (25 of 110 remaining) [2022-11-22 00:36:45,190 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr0ASSERT_VIOLATIONDATA_RACE (24 of 110 remaining) [2022-11-22 00:36:45,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr1ASSERT_VIOLATIONDATA_RACE (23 of 110 remaining) [2022-11-22 00:36:45,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr4ASSERT_VIOLATIONDATA_RACE (22 of 110 remaining) [2022-11-22 00:36:45,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr3ASSERT_VIOLATIONDATA_RACE (21 of 110 remaining) [2022-11-22 00:36:45,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr5ASSERT_VIOLATIONDATA_RACE (20 of 110 remaining) [2022-11-22 00:36:45,191 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr24ASSERT_VIOLATIONDATA_RACE (19 of 110 remaining) [2022-11-22 00:36:45,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr25ASSERT_VIOLATIONDATA_RACE (18 of 110 remaining) [2022-11-22 00:36:45,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr6ASSERT_VIOLATIONDATA_RACE (17 of 110 remaining) [2022-11-22 00:36:45,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr8ASSERT_VIOLATIONDATA_RACE (16 of 110 remaining) [2022-11-22 00:36:45,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr10ASSERT_VIOLATIONDATA_RACE (15 of 110 remaining) [2022-11-22 00:36:45,192 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr7ASSERT_VIOLATIONDATA_RACE (14 of 110 remaining) [2022-11-22 00:36:45,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr9ASSERT_VIOLATIONDATA_RACE (13 of 110 remaining) [2022-11-22 00:36:45,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr11ASSERT_VIOLATIONDATA_RACE (12 of 110 remaining) [2022-11-22 00:36:45,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr16ASSERT_VIOLATIONDATA_RACE (11 of 110 remaining) [2022-11-22 00:36:45,193 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr12ASSERT_VIOLATIONDATA_RACE (10 of 110 remaining) [2022-11-22 00:36:45,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr17ASSERT_VIOLATIONDATA_RACE (9 of 110 remaining) [2022-11-22 00:36:45,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr13ASSERT_VIOLATIONDATA_RACE (8 of 110 remaining) [2022-11-22 00:36:45,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr18ASSERT_VIOLATIONDATA_RACE (7 of 110 remaining) [2022-11-22 00:36:45,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr14ASSERT_VIOLATIONDATA_RACE (6 of 110 remaining) [2022-11-22 00:36:45,194 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr19ASSERT_VIOLATIONDATA_RACE (5 of 110 remaining) [2022-11-22 00:36:45,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr15ASSERT_VIOLATIONDATA_RACE (4 of 110 remaining) [2022-11-22 00:36:45,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr20ASSERT_VIOLATIONDATA_RACE (3 of 110 remaining) [2022-11-22 00:36:45,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr21ASSERT_VIOLATIONDATA_RACE (2 of 110 remaining) [2022-11-22 00:36:45,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr22ASSERT_VIOLATIONDATA_RACE (1 of 110 remaining) [2022-11-22 00:36:45,195 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location qrcu_updaterErr23ASSERT_VIOLATIONDATA_RACE (0 of 110 remaining) [2022-11-22 00:36:45,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 00:36:45,198 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:36:45,208 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-22 00:36:45,208 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:36:45,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:36:45 BasicIcfg [2022-11-22 00:36:45,270 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:36:45,271 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:36:45,271 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:36:45,271 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:36:45,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:35:58" (3/4) ... [2022-11-22 00:36:45,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:36:45,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:36:45,275 INFO L158 Benchmark]: Toolchain (without parser) took 48688.50ms. Allocated memory was 188.7MB in the beginning and 14.1GB in the end (delta: 13.9GB). Free memory was 156.3MB in the beginning and 11.2GB in the end (delta: -11.0GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2022-11-22 00:36:45,275 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 140.5MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:36:45,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.91ms. Allocated memory is still 188.7MB. Free memory was 156.3MB in the beginning and 134.3MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-22 00:36:45,276 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.03ms. Allocated memory is still 188.7MB. Free memory was 134.3MB in the beginning and 131.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:36:45,277 INFO L158 Benchmark]: Boogie Preprocessor took 80.88ms. Allocated memory is still 188.7MB. Free memory was 131.1MB in the beginning and 128.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 00:36:45,277 INFO L158 Benchmark]: RCFGBuilder took 1515.83ms. Allocated memory is still 188.7MB. Free memory was 128.0MB in the beginning and 148.9MB in the end (delta: -20.9MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. [2022-11-22 00:36:45,277 INFO L158 Benchmark]: TraceAbstraction took 46469.65ms. Allocated memory was 188.7MB in the beginning and 14.1GB in the end (delta: 13.9GB). Free memory was 147.9MB in the beginning and 11.2GB in the end (delta: -11.0GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. [2022-11-22 00:36:45,278 INFO L158 Benchmark]: Witness Printer took 4.05ms. Allocated memory is still 14.1GB. Free memory was 11.2GB in the beginning and 11.2GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:36:45,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 140.5MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.91ms. Allocated memory is still 188.7MB. Free memory was 156.3MB in the beginning and 134.3MB in the end (delta: 22.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.03ms. Allocated memory is still 188.7MB. Free memory was 134.3MB in the beginning and 131.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.88ms. Allocated memory is still 188.7MB. Free memory was 131.1MB in the beginning and 128.0MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1515.83ms. Allocated memory is still 188.7MB. Free memory was 128.0MB in the beginning and 148.9MB in the end (delta: -20.9MB). Peak memory consumption was 76.6MB. Max. memory is 16.1GB. * TraceAbstraction took 46469.65ms. Allocated memory was 188.7MB in the beginning and 14.1GB in the end (delta: 13.9GB). Free memory was 147.9MB in the beginning and 11.2GB in the end (delta: -11.0GB). Peak memory consumption was 2.9GB. Max. memory is 16.1GB. * Witness Printer took 4.05ms. Allocated memory is still 14.1GB. Free memory was 11.2GB in the beginning and 11.2GB in the end (delta: 1.0MB). 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: 11.8s, 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: 3153, independent: 1784, independent conditional: 0, independent unconditional: 1784, dependent: 1369, dependent conditional: 0, dependent unconditional: 1369, 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: 46.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 10.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 18.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 654 SdHoareTripleChecker+Valid, 1.9s 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: 16.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 46336 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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! [2022-11-22 00:36:45,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48d48aab-b8de-46df-aa9b-e055056c44d5/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE