./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c5a5c14c57e06cfd3efa20a37113fb2e77fc1d7f7a430797d00e5c1b23749611 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:17:23,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:17:23,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:17:23,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:17:23,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:17:23,936 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:17:23,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:17:23,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:17:23,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:17:23,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:17:23,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:17:23,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:17:23,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:17:23,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:17:23,958 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:17:23,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:17:23,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:17:23,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:17:23,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:17:23,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:17:23,973 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:17:23,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:17:23,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:17:23,978 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:17:23,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:17:23,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:17:23,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:17:23,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:17:23,992 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:17:23,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:17:23,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:17:23,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:17:23,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:17:23,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:17:24,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:17:24,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:17:24,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:17:24,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:17:24,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:17:24,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:17:24,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:17:24,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-25 22:17:24,047 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:17:24,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:17:24,048 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:17:24,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:17:24,049 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:17:24,049 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:17:24,049 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:17:24,049 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:17:24,050 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:17:24,050 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:17:24,051 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:17:24,051 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:17:24,051 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:17:24,052 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:17:24,052 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:17:24,052 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:17:24,052 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:17:24,052 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:17:24,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:17:24,054 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:17:24,054 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:17:24,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:17:24,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:17:24,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:17:24,055 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:17:24,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:17:24,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:17:24,056 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 22:17:24,056 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:17:24,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:17:24,056 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:17:24,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:17:24,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:17:24,057 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:17:24,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:17:24,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:17:24,058 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:17:24,058 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:17:24,058 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:17:24,059 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:17:24,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:17:24,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:17:24,059 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:17:24,059 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_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5a5c14c57e06cfd3efa20a37113fb2e77fc1d7f7a430797d00e5c1b23749611 [2022-11-25 22:17:24,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:17:24,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:17:24,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:17:24,392 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:17:24,392 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:17:24,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i [2022-11-25 22:17:27,375 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:17:27,703 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:17:27,703 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i [2022-11-25 22:17:27,720 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/data/a47c5c816/76b658d826f24d779c90deaca42d4ef0/FLAGb97cc9a95 [2022-11-25 22:17:27,736 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/data/a47c5c816/76b658d826f24d779c90deaca42d4ef0 [2022-11-25 22:17:27,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:17:27,741 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:17:27,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:17:27,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:17:27,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:17:27,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:17:27" (1/1) ... [2022-11-25 22:17:27,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c3b1b96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:27, skipping insertion in model container [2022-11-25 22:17:27,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:17:27" (1/1) ... [2022-11-25 22:17:27,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:17:27,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:17:28,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:17:28,362 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:17:28,428 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:17:28,486 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:17:28,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28 WrapperNode [2022-11-25 22:17:28,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:17:28,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:17:28,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:17:28,488 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:17:28,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,532 INFO L138 Inliner]: procedures = 263, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2022-11-25 22:17:28,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:17:28,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:17:28,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:17:28,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:17:28,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,556 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,559 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:17:28,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:17:28,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:17:28,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:17:28,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (1/1) ... [2022-11-25 22:17:28,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:17:28,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:17:28,609 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:17:28,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:17:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2022-11-25 22:17:28,664 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:17:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:17:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2022-11-25 22:17:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:17:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:17:28,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:17:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 22:17:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 22:17:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:17:28,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:17:28,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:17:28,668 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 22:17:28,899 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:17:28,901 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:17:29,169 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:17:29,176 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:17:29,179 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:17:29,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:17:29 BoogieIcfgContainer [2022-11-25 22:17:29,183 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:17:29,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:17:29,186 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:17:29,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:17:29,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:17:27" (1/3) ... [2022-11-25 22:17:29,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b195f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:17:29, skipping insertion in model container [2022-11-25 22:17:29,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:17:28" (2/3) ... [2022-11-25 22:17:29,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293b195f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:17:29, skipping insertion in model container [2022-11-25 22:17:29,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:17:29" (3/3) ... [2022-11-25 22:17:29,197 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_55-pt_rwlock_rr.i [2022-11-25 22:17:29,206 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 22:17:29,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:17:29,218 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-25 22:17:29,218 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 22:17:29,295 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 22:17:29,338 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 22:17:29,354 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 87 transitions, 182 flow [2022-11-25 22:17:29,358 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 87 transitions, 182 flow [2022-11-25 22:17:29,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 87 transitions, 182 flow [2022-11-25 22:17:29,447 INFO L130 PetriNetUnfolder]: 0/86 cut-off events. [2022-11-25 22:17:29,447 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 22:17:29,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 86 events. 0/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 58 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-25 22:17:29,452 INFO L119 LiptonReduction]: Number of co-enabled transitions 1232 [2022-11-25 22:17:32,706 INFO L134 LiptonReduction]: Checked pairs total: 3007 [2022-11-25 22:17:32,706 INFO L136 LiptonReduction]: Total number of compositions: 77 [2022-11-25 22:17:32,715 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2022-11-25 22:17:32,734 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 91 states, 72 states have (on average 2.236111111111111) internal successors, (161), 90 states have internal predecessors, (161), 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) [2022-11-25 22:17:32,753 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:17:32,759 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;@e21daec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:17:32,760 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-25 22:17:32,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 72 states have (on average 2.236111111111111) internal successors, (161), 90 states have internal predecessors, (161), 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) [2022-11-25 22:17:32,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-25 22:17:32,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:32,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-25 22:17:32,769 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-25 22:17:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:32,786 INFO L85 PathProgramCache]: Analyzing trace with hash 298507, now seen corresponding path program 1 times [2022-11-25 22:17:32,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:32,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405680172] [2022-11-25 22:17:32,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:32,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:32,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:32,952 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:32,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405680172] [2022-11-25 22:17:32,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405680172] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:32,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:32,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:17:32,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770384554] [2022-11-25 22:17:32,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:32,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:17:32,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:17:32,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:17:32,988 INFO L87 Difference]: Start difference. First operand has 91 states, 72 states have (on average 2.236111111111111) internal successors, (161), 90 states have internal predecessors, (161), 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 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-25 22:17:33,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:33,038 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2022-11-25 22:17:33,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:17:33,044 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2022-11-25 22:17:33,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:33,066 INFO L225 Difference]: With dead ends: 65 [2022-11-25 22:17:33,066 INFO L226 Difference]: Without dead ends: 65 [2022-11-25 22:17:33,067 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 [2022-11-25 22:17:33,075 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:33,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:17:33,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-25 22:17:33,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-25 22:17:33,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 57 states have (on average 1.9649122807017543) internal successors, (112), 64 states have internal predecessors, (112), 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) [2022-11-25 22:17:33,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 112 transitions. [2022-11-25 22:17:33,138 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 112 transitions. Word has length 3 [2022-11-25 22:17:33,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:33,140 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 112 transitions. [2022-11-25 22:17:33,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2022-11-25 22:17:33,141 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 112 transitions. [2022-11-25 22:17:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 22:17:33,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:33,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 22:17:33,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:17:33,143 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-25 22:17:33,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:33,144 INFO L85 PathProgramCache]: Analyzing trace with hash 9254115, now seen corresponding path program 1 times [2022-11-25 22:17:33,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:33,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272891604] [2022-11-25 22:17:33,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:33,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:33,258 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:33,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272891604] [2022-11-25 22:17:33,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272891604] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:33,259 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:33,259 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:17:33,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527562434] [2022-11-25 22:17:33,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:33,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:17:33,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:33,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:17:33,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:17:33,263 INFO L87 Difference]: Start difference. First operand 65 states and 112 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-11-25 22:17:33,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:33,314 INFO L93 Difference]: Finished difference Result 98 states and 166 transitions. [2022-11-25 22:17:33,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:17:33,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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 [2022-11-25 22:17:33,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:33,318 INFO L225 Difference]: With dead ends: 98 [2022-11-25 22:17:33,318 INFO L226 Difference]: Without dead ends: 98 [2022-11-25 22:17:33,319 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 [2022-11-25 22:17:33,320 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:33,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 9 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:17:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-25 22:17:33,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 69. [2022-11-25 22:17:33,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.9508196721311475) internal successors, (119), 68 states have internal predecessors, (119), 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) [2022-11-25 22:17:33,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 119 transitions. [2022-11-25 22:17:33,341 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 119 transitions. Word has length 4 [2022-11-25 22:17:33,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:33,342 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 119 transitions. [2022-11-25 22:17:33,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 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) [2022-11-25 22:17:33,343 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 119 transitions. [2022-11-25 22:17:33,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 22:17:33,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:33,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 22:17:33,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:17:33,348 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-25 22:17:33,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:33,350 INFO L85 PathProgramCache]: Analyzing trace with hash 286862900, now seen corresponding path program 1 times [2022-11-25 22:17:33,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:33,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644813233] [2022-11-25 22:17:33,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:33,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:33,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:17:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:17:33,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:17:33,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644813233] [2022-11-25 22:17:33,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644813233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:17:33,472 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:17:33,472 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:17:33,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725072386] [2022-11-25 22:17:33,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:17:33,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:17:33,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:17:33,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:17:33,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:17:33,474 INFO L87 Difference]: Start difference. First operand 69 states and 119 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) [2022-11-25 22:17:33,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:17:33,519 INFO L93 Difference]: Finished difference Result 77 states and 133 transitions. [2022-11-25 22:17:33,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:17:33,519 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 [2022-11-25 22:17:33,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:17:33,523 INFO L225 Difference]: With dead ends: 77 [2022-11-25 22:17:33,526 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 22:17:33,527 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 [2022-11-25 22:17:33,528 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:17:33,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:17:33,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 22:17:33,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2022-11-25 22:17:33,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 64 states have (on average 1.90625) internal successors, (122), 70 states have internal predecessors, (122), 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) [2022-11-25 22:17:33,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 122 transitions. [2022-11-25 22:17:33,542 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 122 transitions. Word has length 5 [2022-11-25 22:17:33,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:17:33,543 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 122 transitions. [2022-11-25 22:17:33,544 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) [2022-11-25 22:17:33,544 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 122 transitions. [2022-11-25 22:17:33,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 22:17:33,546 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:17:33,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 22:17:33,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 22:17:33,547 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-25 22:17:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:17:33,548 INFO L85 PathProgramCache]: Analyzing trace with hash 302817972, now seen corresponding path program 1 times [2022-11-25 22:17:33,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:17:33,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325795740] [2022-11-25 22:17:33,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:17:33,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:17:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:17:33,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:17:33,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:17:33,638 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:17:33,638 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:17:33,640 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-11-25 22:17:33,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-11-25 22:17:33,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2022-11-25 22:17:33,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-11-25 22:17:33,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-11-25 22:17:33,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 11 remaining) [2022-11-25 22:17:33,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-11-25 22:17:33,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-11-25 22:17:33,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-11-25 22:17:33,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-11-25 22:17:33,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-11-25 22:17:33,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 22:17:33,647 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 22:17:33,654 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 22:17:33,654 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:17:33,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:17:33 BasicIcfg [2022-11-25 22:17:33,675 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:17:33,675 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:17:33,676 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:17:33,676 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:17:33,676 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:17:29" (3/4) ... [2022-11-25 22:17:33,679 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:17:33,680 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:17:33,680 INFO L158 Benchmark]: Toolchain (without parser) took 5939.50ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 125.0MB in the beginning and 120.2MB in the end (delta: 4.8MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2022-11-25 22:17:33,681 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 111.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:17:33,681 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.63ms. Allocated memory is still 159.4MB. Free memory was 125.0MB in the beginning and 97.3MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 22:17:33,682 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.64ms. Allocated memory is still 159.4MB. Free memory was 97.3MB in the beginning and 95.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:17:33,682 INFO L158 Benchmark]: Boogie Preprocessor took 29.58ms. Allocated memory is still 159.4MB. Free memory was 95.2MB in the beginning and 93.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:17:33,682 INFO L158 Benchmark]: RCFGBuilder took 618.81ms. Allocated memory is still 159.4MB. Free memory was 93.7MB in the beginning and 79.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:17:33,683 INFO L158 Benchmark]: TraceAbstraction took 4489.60ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 79.0MB in the beginning and 121.2MB in the end (delta: -42.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:17:33,683 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 192.9MB. Free memory was 121.2MB in the beginning and 120.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:17:33,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory was 71.6MB in the beginning and 71.5MB in the end (delta: 111.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 744.63ms. Allocated memory is still 159.4MB. Free memory was 125.0MB in the beginning and 97.3MB in the end (delta: 27.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.64ms. Allocated memory is still 159.4MB. Free memory was 97.3MB in the beginning and 95.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.58ms. Allocated memory is still 159.4MB. Free memory was 95.2MB in the beginning and 93.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 618.81ms. Allocated memory is still 159.4MB. Free memory was 93.7MB in the beginning and 79.7MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4489.60ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 79.0MB in the beginning and 121.2MB in the end (delta: -42.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 192.9MB. Free memory was 121.2MB in the beginning and 120.2MB 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: 3.3s, 91 PlacesBefore, 26 PlacesAfterwards, 87 TransitionsBefore, 22 TransitionsAfterwards, 1232 CoEnabledTransitionPairs, 8 FixpointIterations, 32 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 77 TotalNumberOfCompositions, 3007 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1714, independent: 1503, independent conditional: 0, independent unconditional: 1503, dependent: 211, dependent conditional: 0, dependent unconditional: 211, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 902, independent: 851, independent conditional: 0, independent unconditional: 851, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 902, independent: 805, independent conditional: 0, independent unconditional: 805, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 97, independent: 46, independent conditional: 0, independent unconditional: 46, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 189, independent: 73, independent conditional: 0, independent unconditional: 73, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1714, independent: 652, independent conditional: 0, independent unconditional: 652, dependent: 160, dependent conditional: 0, dependent unconditional: 160, unknown: 902, unknown conditional: 0, unknown unconditional: 902] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: 922]: Data race detected Data race detected The following path leads to a data race: [L917] 0 static int data1; [L918] 0 static int data2; [L919] 0 static pthread_rwlock_t rwlock = { { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 } }; [L928] 0 pthread_t id; [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, data1=0, data2=0, id={3:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, rwlock={1:0}] [L922] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1=1, data1++=0, data1++=33, data2=0, rwlock={1:0}] [L922] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1=1, data1++=0, data1++=33, data2=0, rwlock={1:0}] Now there is a data race on ~data1~0 between C: printf("%d",data1) [931] and C: data1++ [922] - UnprovableResult [Line: 931]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 929]: 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: 922]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 112 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 19 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=91occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 35 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2022-11-25 22:17:33,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90ddb4ed-36a4-460e-9b80-260d6977878c/bin/utaipan-ByfvJB40ur/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