./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 5e519f3a 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_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/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_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI --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-5e519f3 [2022-11-03 01:57:46,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:57:46,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:57:46,937 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:57:46,938 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:57:46,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:57:46,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:57:46,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:57:46,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:57:46,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:57:46,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:57:46,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:57:46,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:57:46,948 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:57:46,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:57:46,950 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:57:46,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:57:46,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:57:46,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:57:46,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:57:46,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:57:46,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:57:46,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:57:46,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:57:46,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:57:46,965 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:57:46,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:57:46,966 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:57:46,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:57:46,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:57:46,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:57:46,969 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:57:46,970 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:57:46,971 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:57:46,972 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:57:46,972 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:57:46,973 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:57:46,973 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:57:46,974 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:57:46,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:57:46,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:57:46,980 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-03 01:57:47,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:57:47,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:57:47,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:57:47,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:57:47,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:57:47,015 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:57:47,015 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:57:47,016 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:57:47,016 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:57:47,016 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:57:47,020 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:57:47,024 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:57:47,025 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:57:47,025 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:57:47,026 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:57:47,026 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:57:47,026 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:57:47,026 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:57:47,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:57:47,027 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:57:47,028 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-03 01:57:47,028 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:57:47,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:57:47,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:57:47,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:57:47,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:57:47,030 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:57:47,030 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-03 01:57:47,031 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:57:47,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:57:47,032 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:57:47,032 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:57:47,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:57:47,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:57:47,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:57:47,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:57:47,035 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:57:47,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:57:47,036 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:57:47,036 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:57:47,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:57:47,036 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:57:47,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:57:47,037 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_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c5a5c14c57e06cfd3efa20a37113fb2e77fc1d7f7a430797d00e5c1b23749611 [2022-11-03 01:57:47,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:57:47,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:57:47,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:57:47,326 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:57:47,327 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:57:47,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i [2022-11-03 01:57:47,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/data/112ef589b/a2137bf5a1f548399164e37004792faa/FLAGba5054f8f [2022-11-03 01:57:48,008 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:57:48,009 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/sv-benchmarks/c/goblint-regression/04-mutex_55-pt_rwlock_rr.i [2022-11-03 01:57:48,025 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/data/112ef589b/a2137bf5a1f548399164e37004792faa/FLAGba5054f8f [2022-11-03 01:57:48,289 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/data/112ef589b/a2137bf5a1f548399164e37004792faa [2022-11-03 01:57:48,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:57:48,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:57:48,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:57:48,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:57:48,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:57:48,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:57:48" (1/1) ... [2022-11-03 01:57:48,303 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2cd358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:48, skipping insertion in model container [2022-11-03 01:57:48,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:57:48" (1/1) ... [2022-11-03 01:57:48,310 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:57:48,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:57:48,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:57:48,932 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:57:48,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:57:49,045 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:57:49,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49 WrapperNode [2022-11-03 01:57:49,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:57:49,047 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:57:49,047 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:57:49,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:57:49,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,120 INFO L138 Inliner]: procedures = 263, calls = 32, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 65 [2022-11-03 01:57:49,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:57:49,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:57:49,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:57:49,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:57:49,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:57:49,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:57:49,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:57:49,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:57:49,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (1/1) ... [2022-11-03 01:57:49,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:57:49,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:57:49,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:57:49,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:57:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockReadLock [2022-11-03 01:57:49,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:57:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:57:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsRwLockUnlock [2022-11-03 01:57:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:57:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:57:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:57:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-03 01:57:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-03 01:57:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:57:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:57:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:57:49,273 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-03 01:57:49,441 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:57:49,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:57:49,752 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:57:49,759 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:57:49,759 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:57:49,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:57:49 BoogieIcfgContainer [2022-11-03 01:57:49,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:57:49,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:57:49,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:57:49,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:57:49,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:57:48" (1/3) ... [2022-11-03 01:57:49,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223aa1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:57:49, skipping insertion in model container [2022-11-03 01:57:49,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:57:49" (2/3) ... [2022-11-03 01:57:49,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@223aa1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:57:49, skipping insertion in model container [2022-11-03 01:57:49,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:57:49" (3/3) ... [2022-11-03 01:57:49,778 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_55-pt_rwlock_rr.i [2022-11-03 01:57:49,787 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-03 01:57:49,797 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:57:49,798 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-11-03 01:57:49,798 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-03 01:57:49,939 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-03 01:57:49,975 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-03 01:57:49,994 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 95 transitions, 198 flow [2022-11-03 01:57:50,003 INFO L112 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 95 transitions, 198 flow [2022-11-03 01:57:50,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 99 places, 95 transitions, 198 flow [2022-11-03 01:57:50,087 INFO L130 PetriNetUnfolder]: 0/94 cut-off events. [2022-11-03 01:57:50,089 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-03 01:57:50,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 94 events. 0/94 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. 0/87 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-03 01:57:50,094 INFO L118 LiptonReduction]: Number of co-enabled transitions 1232 [2022-11-03 01:57:53,954 INFO L133 LiptonReduction]: Checked pairs total: 3076 [2022-11-03 01:57:53,955 INFO L135 LiptonReduction]: Total number of compositions: 86 [2022-11-03 01:57:53,963 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 22 transitions, 52 flow [2022-11-03 01:57:53,980 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) [2022-11-03 01:57:53,998 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:57:54,004 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;@55ff828d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:57:54,005 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-03 01:57:54,007 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) [2022-11-03 01:57:54,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-03 01:57:54,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:54,013 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-03 01:57:54,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-03 01:57:54,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:54,019 INFO L85 PathProgramCache]: Analyzing trace with hash 322100, now seen corresponding path program 1 times [2022-11-03 01:57:54,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:54,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897975642] [2022-11-03 01:57:54,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:54,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:54,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:57:54,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:54,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897975642] [2022-11-03 01:57:54,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897975642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:54,207 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:54,207 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-03 01:57:54,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460783819] [2022-11-03 01:57:54,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:54,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:57:54,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:54,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:57:54,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:57:54,246 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) [2022-11-03 01:57:54,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:54,290 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2022-11-03 01:57:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:57:54,293 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 [2022-11-03 01:57:54,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:54,302 INFO L225 Difference]: With dead ends: 65 [2022-11-03 01:57:54,302 INFO L226 Difference]: Without dead ends: 65 [2022-11-03 01:57:54,303 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 [2022-11-03 01:57:54,308 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:54,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:57:54,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-03 01:57:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-03 01:57:54,353 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) [2022-11-03 01:57:54,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 112 transitions. [2022-11-03 01:57:54,359 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 112 transitions. Word has length 3 [2022-11-03 01:57:54,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:54,360 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 112 transitions. [2022-11-03 01:57:54,360 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) [2022-11-03 01:57:54,360 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 112 transitions. [2022-11-03 01:57:54,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 01:57:54,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:54,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 01:57:54,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:57:54,362 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)] === [2022-11-03 01:57:54,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:54,362 INFO L85 PathProgramCache]: Analyzing trace with hash 9985317, now seen corresponding path program 1 times [2022-11-03 01:57:54,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:54,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518007959] [2022-11-03 01:57:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:54,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:54,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:54,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:57:54,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:54,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518007959] [2022-11-03 01:57:54,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518007959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:54,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:54,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:57:54,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729352393] [2022-11-03 01:57:54,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:54,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:54,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:54,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:54,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:54,489 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) [2022-11-03 01:57:54,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:54,533 INFO L93 Difference]: Finished difference Result 98 states and 166 transitions. [2022-11-03 01:57:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:57:54,534 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 [2022-11-03 01:57:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:54,535 INFO L225 Difference]: With dead ends: 98 [2022-11-03 01:57:54,537 INFO L226 Difference]: Without dead ends: 98 [2022-11-03 01:57:54,537 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 [2022-11-03 01:57:54,538 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 10 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:54,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 12 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:57:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-03 01:57:54,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 69. [2022-11-03 01:57:54,551 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) [2022-11-03 01:57:54,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 119 transitions. [2022-11-03 01:57:54,557 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 119 transitions. Word has length 4 [2022-11-03 01:57:54,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:54,558 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 119 transitions. [2022-11-03 01:57:54,558 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) [2022-11-03 01:57:54,558 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 119 transitions. [2022-11-03 01:57:54,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-03 01:57:54,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:54,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-03 01:57:54,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:57:54,561 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)] === [2022-11-03 01:57:54,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:54,563 INFO L85 PathProgramCache]: Analyzing trace with hash 309529434, now seen corresponding path program 1 times [2022-11-03 01:57:54,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:54,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900965175] [2022-11-03 01:57:54,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:54,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:57:54,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:57:54,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:57:54,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900965175] [2022-11-03 01:57:54,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900965175] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:57:54,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:57:54,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:57:54,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660816364] [2022-11-03 01:57:54,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:57:54,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:57:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:57:54,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:57:54,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:57:54,667 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) [2022-11-03 01:57:54,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:57:54,699 INFO L93 Difference]: Finished difference Result 71 states and 122 transitions. [2022-11-03 01:57:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:57:54,699 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 [2022-11-03 01:57:54,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:57:54,701 INFO L225 Difference]: With dead ends: 71 [2022-11-03 01:57:54,702 INFO L226 Difference]: Without dead ends: 71 [2022-11-03 01:57:54,702 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 [2022-11-03 01:57:54,703 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:57:54,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 12 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:57:54,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-11-03 01:57:54,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2022-11-03 01:57:54,721 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) [2022-11-03 01:57:54,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 122 transitions. [2022-11-03 01:57:54,722 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 122 transitions. Word has length 5 [2022-11-03 01:57:54,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:57:54,722 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 122 transitions. [2022-11-03 01:57:54,723 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) [2022-11-03 01:57:54,734 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 122 transitions. [2022-11-03 01:57:54,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-03 01:57:54,736 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:57:54,736 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-03 01:57:54,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:57:54,737 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2022-11-03 01:57:54,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:57:54,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1006045348, now seen corresponding path program 1 times [2022-11-03 01:57:54,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:57:54,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433776076] [2022-11-03 01:57:54,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:57:54,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:57:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:57:54,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 01:57:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 01:57:54,799 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 01:57:54,799 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 01:57:54,800 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-11-03 01:57:54,802 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-11-03 01:57:54,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2022-11-03 01:57:54,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-11-03 01:57:54,803 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 11 remaining) [2022-11-03 01:57:54,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-11-03 01:57:54,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-11-03 01:57:54,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-11-03 01:57:54,804 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-11-03 01:57:54,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-11-03 01:57:54,805 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-11-03 01:57:54,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:57:54,808 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 01:57:54,813 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-03 01:57:54,814 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:57:54,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:57:54 BasicIcfg [2022-11-03 01:57:54,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:57:54,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:57:54,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:57:54,834 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:57:54,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:57:49" (3/4) ... [2022-11-03 01:57:54,837 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 01:57:54,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:57:54,838 INFO L158 Benchmark]: Toolchain (without parser) took 6545.26ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 96.0MB in the beginning and 130.2MB in the end (delta: -34.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:57:54,838 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:57:54,839 INFO L158 Benchmark]: CACSL2BoogieTranslator took 750.01ms. Allocated memory is still 132.1MB. Free memory was 95.8MB in the beginning and 90.1MB in the end (delta: 5.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-03 01:57:54,839 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.70ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 88.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:57:54,839 INFO L158 Benchmark]: Boogie Preprocessor took 47.50ms. Allocated memory is still 132.1MB. Free memory was 88.0MB in the beginning and 86.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:57:54,840 INFO L158 Benchmark]: RCFGBuilder took 591.29ms. Allocated memory is still 132.1MB. Free memory was 86.3MB in the beginning and 72.1MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 01:57:54,840 INFO L158 Benchmark]: TraceAbstraction took 5069.84ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 71.7MB in the beginning and 130.2MB in the end (delta: -58.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:57:54,841 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 165.7MB. Free memory is still 130.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:57:54,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 100.7MB. Free memory is still 55.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 750.01ms. Allocated memory is still 132.1MB. Free memory was 95.8MB in the beginning and 90.1MB in the end (delta: 5.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.70ms. Allocated memory is still 132.1MB. Free memory was 90.1MB in the beginning and 88.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.50ms. Allocated memory is still 132.1MB. Free memory was 88.0MB in the beginning and 86.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 591.29ms. Allocated memory is still 132.1MB. Free memory was 86.3MB in the beginning and 72.1MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5069.84ms. Allocated memory was 132.1MB in the beginning and 165.7MB in the end (delta: 33.6MB). Free memory was 71.7MB in the beginning and 130.2MB in the end (delta: -58.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 165.7MB. Free memory is still 130.2MB. 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: 4.0s, 99 PlacesBefore, 26 PlacesAfterwards, 95 TransitionsBefore, 22 TransitionsAfterwards, 1232 CoEnabledTransitionPairs, 8 FixpointIterations, 40 TrivialSequentialCompositions, 46 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 86 TotalNumberOfCompositions, 3076 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1731, positive: 1528, positive conditional: 0, positive unconditional: 1528, negative: 203, negative conditional: 0, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 949, positive: 896, positive conditional: 0, positive unconditional: 896, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 949, positive: 850, positive conditional: 0, positive unconditional: 850, negative: 99, negative conditional: 0, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 99, positive: 46, positive conditional: 0, positive unconditional: 46, negative: 53, negative conditional: 0, negative unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 172, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 98, negative conditional: 0, negative unconditional: 98, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1731, positive: 632, positive conditional: 0, positive unconditional: 632, negative: 150, negative conditional: 0, negative unconditional: 150, unknown: 949, unknown conditional: 0, unknown unconditional: 949] , Statistics on independence cache: Total cache size (in pairs): 94, Positive cache size: 76, Positive conditional cache size: 0, Positive unconditional cache size: 76, Negative cache size: 18, Negative conditional cache size: 0, Negative unconditional cache size: 18 - 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: 931]: 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={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1, rwlock={3:0}] [L922] 1 data1++ VAL [arg={0:0}, arg={0:0}, data1=1, data1++=0, data1++=101, data2=0, rwlock={3:0}] [L931] 0 printf("%d",data1) VAL [arg={0:0}, arg={0:0}, data1=1, data1++=0, data1++=101, data2=0, id={5:0}, rwlock={3:0}] Now there is a data race on ~data1~0 between C: data1++ [922] and C: printf("%d",data1) [931] - 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: 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, 120 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 23 mSDtfsCounter, 59 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, 29 StatesRemovedByMinimization, 1 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 could not prove your program: unable to determine feasibility of some traces [2022-11-03 01:57:54,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1c81f20-2f9e-40bf-b91f-cc7d207c5238/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE