./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a 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_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/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_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/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_07c0dba1-5654-4476-9740-5cffd4d64bb8/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 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:12:23,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:12:23,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:12:23,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:12:23,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:12:23,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:12:23,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:12:23,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:12:23,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:12:23,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:12:23,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:12:23,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:12:23,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:12:23,862 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:12:23,863 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:12:23,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:12:23,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:12:23,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:12:23,866 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:12:23,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:12:23,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:12:23,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:12:23,876 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:12:23,877 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:12:23,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:12:23,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:12:23,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:12:23,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:12:23,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:12:23,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:12:23,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:12:23,893 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:12:23,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:12:23,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:12:23,895 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:12:23,896 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:12:23,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:12:23,897 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:12:23,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:12:23,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:12:23,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:12:23,903 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-26 00:12:23,939 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:12:23,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:12:23,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:12:23,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:12:23,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:12:23,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:12:23,942 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:12:23,942 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:12:23,942 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:12:23,942 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:12:23,943 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:12:23,944 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:12:23,944 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:12:23,944 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:12:23,944 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:12:23,945 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:12:23,945 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:12:23,945 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:12:23,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:12:23,946 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:12:23,946 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:12:23,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:12:23,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:12:23,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:12:23,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:12:23,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:12:23,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:12:23,947 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-26 00:12:23,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:12:23,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:12:23,948 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:12:23,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:12:23,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:12:23,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:12:23,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:12:23,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:12:23,949 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:12:23,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:12:23,949 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:12:23,950 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:12:23,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:12:23,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:12:23,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:12:23,950 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_07c0dba1-5654-4476-9740-5cffd4d64bb8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14021be990ac15ab4220d2b72ebb5203b2152775e4c1d32aaa66b7b14032d7f7 [2022-11-26 00:12:24,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:12:24,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:12:24,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:12:24,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:12:24,232 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:12:24,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i [2022-11-26 00:12:27,344 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:12:27,613 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:12:27,615 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/sv-benchmarks/c/goblint-regression/04-mutex_20-stdfun_rc.i [2022-11-26 00:12:27,634 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/data/c5272651a/0b1d3265fb52408ba47e04f1924e29bd/FLAGca04adbfa [2022-11-26 00:12:27,656 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/data/c5272651a/0b1d3265fb52408ba47e04f1924e29bd [2022-11-26 00:12:27,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:12:27,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:12:27,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:12:27,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:12:27,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:12:27,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:12:27" (1/1) ... [2022-11-26 00:12:27,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23b03b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:27, skipping insertion in model container [2022-11-26 00:12:27,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:12:27" (1/1) ... [2022-11-26 00:12:27,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:12:27,730 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:12:28,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:12:28,229 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:12:28,268 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:12:28,326 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:12:28,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28 WrapperNode [2022-11-26 00:12:28,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:12:28,329 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:12:28,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:12:28,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:12:28,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,356 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,377 INFO L138 Inliner]: procedures = 261, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 31 [2022-11-26 00:12:28,378 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:12:28,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:12:28,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:12:28,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:12:28,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,403 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:12:28,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:12:28,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:12:28,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:12:28,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (1/1) ... [2022-11-26 00:12:28,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:12:28,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:12:28,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:12:28,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:12:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:12:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:12:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:12:28,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:12:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:12:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-26 00:12:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-26 00:12:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:12:28,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:12:28,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:12:28,558 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-26 00:12:28,686 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:12:28,688 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:12:28,840 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:12:28,846 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:12:28,847 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:12:28,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:28 BoogieIcfgContainer [2022-11-26 00:12:28,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:12:28,851 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:12:28,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:12:28,854 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:12:28,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:12:27" (1/3) ... [2022-11-26 00:12:28,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607726ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:12:28, skipping insertion in model container [2022-11-26 00:12:28,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:12:28" (2/3) ... [2022-11-26 00:12:28,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@607726ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:12:28, skipping insertion in model container [2022-11-26 00:12:28,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:28" (3/3) ... [2022-11-26 00:12:28,857 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_20-stdfun_rc.i [2022-11-26 00:12:28,865 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-26 00:12:28,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:12:28,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-11-26 00:12:28,876 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-26 00:12:28,973 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-26 00:12:29,010 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-26 00:12:29,022 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 56 transitions, 117 flow [2022-11-26 00:12:29,025 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 56 transitions, 117 flow [2022-11-26 00:12:29,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 56 transitions, 117 flow [2022-11-26 00:12:29,066 INFO L130 PetriNetUnfolder]: 0/55 cut-off events. [2022-11-26 00:12:29,066 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-26 00:12:29,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 55 events. 0/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 44 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-11-26 00:12:29,071 INFO L119 LiptonReduction]: Number of co-enabled transitions 760 [2022-11-26 00:12:30,650 INFO L134 LiptonReduction]: Checked pairs total: 2875 [2022-11-26 00:12:30,650 INFO L136 LiptonReduction]: Total number of compositions: 32 [2022-11-26 00:12:30,663 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 28 places, 24 transitions, 53 flow [2022-11-26 00:12:30,705 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 121 states, 116 states have (on average 1.8706896551724137) internal successors, (217), 120 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:12:30,734 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:12:30,742 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;@4fdb3123, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:12:30,742 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-26 00:12:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 116 states have (on average 1.8706896551724137) internal successors, (217), 120 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:12:30,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:12:30,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:30,751 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:30,752 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-26 00:12:30,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:30,756 INFO L85 PathProgramCache]: Analyzing trace with hash 146913344, now seen corresponding path program 1 times [2022-11-26 00:12:30,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:30,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684294458] [2022-11-26 00:12:30,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:30,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:31,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:31,378 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:31,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684294458] [2022-11-26 00:12:31,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684294458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:31,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:31,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:31,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885354638] [2022-11-26 00:12:31,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:31,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:12:31,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:31,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:12:31,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:12:31,418 INFO L87 Difference]: Start difference. First operand has 121 states, 116 states have (on average 1.8706896551724137) internal successors, (217), 120 states have internal predecessors, (217), 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 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:12:31,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:31,651 INFO L93 Difference]: Finished difference Result 206 states and 376 transitions. [2022-11-26 00:12:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:31,654 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:12:31,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:31,664 INFO L225 Difference]: With dead ends: 206 [2022-11-26 00:12:31,665 INFO L226 Difference]: Without dead ends: 206 [2022-11-26 00:12:31,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:12:31,669 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:31,670 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 10 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:31,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-11-26 00:12:31,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 152. [2022-11-26 00:12:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 147 states have (on average 1.91156462585034) internal successors, (281), 151 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:12:31,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 281 transitions. [2022-11-26 00:12:31,713 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 281 transitions. Word has length 8 [2022-11-26 00:12:31,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:31,714 INFO L495 AbstractCegarLoop]: Abstraction has 152 states and 281 transitions. [2022-11-26 00:12:31,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:12:31,715 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 281 transitions. [2022-11-26 00:12:31,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:12:31,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:31,715 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:31,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:12:31,716 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-26 00:12:31,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:31,717 INFO L85 PathProgramCache]: Analyzing trace with hash 402114249, now seen corresponding path program 1 times [2022-11-26 00:12:31,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:31,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048832474] [2022-11-26 00:12:31,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:31,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:31,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:12:31,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:12:31,945 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:12:31,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048832474] [2022-11-26 00:12:31,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048832474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:12:31,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:12:31,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-26 00:12:31,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927545091] [2022-11-26 00:12:31,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:12:31,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:12:31,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:12:31,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:12:31,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:12:31,949 INFO L87 Difference]: Start difference. First operand 152 states and 281 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:12:32,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:12:32,190 INFO L93 Difference]: Finished difference Result 254 states and 467 transitions. [2022-11-26 00:12:32,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:12:32,191 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:12:32,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:12:32,193 INFO L225 Difference]: With dead ends: 254 [2022-11-26 00:12:32,193 INFO L226 Difference]: Without dead ends: 245 [2022-11-26 00:12:32,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:12:32,194 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:12:32,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 11 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:12:32,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-11-26 00:12:32,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 196. [2022-11-26 00:12:32,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.9267015706806283) internal successors, (368), 195 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:12:32,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 368 transitions. [2022-11-26 00:12:32,211 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 368 transitions. Word has length 8 [2022-11-26 00:12:32,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:12:32,211 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 368 transitions. [2022-11-26 00:12:32,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:12:32,212 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 368 transitions. [2022-11-26 00:12:32,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:12:32,213 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:12:32,213 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:12:32,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:12:32,213 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 3 more)] === [2022-11-26 00:12:32,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:12:32,214 INFO L85 PathProgramCache]: Analyzing trace with hash -550155154, now seen corresponding path program 1 times [2022-11-26 00:12:32,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:12:32,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813506102] [2022-11-26 00:12:32,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:12:32,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:12:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:12:32,230 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:12:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:12:32,258 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:12:32,258 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:12:32,259 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 6 remaining) [2022-11-26 00:12:32,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 6 remaining) [2022-11-26 00:12:32,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 6 remaining) [2022-11-26 00:12:32,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 6 remaining) [2022-11-26 00:12:32,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 6 remaining) [2022-11-26 00:12:32,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 6 remaining) [2022-11-26 00:12:32,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:12:32,265 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-26 00:12:32,271 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-26 00:12:32,272 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:12:32,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:12:32 BasicIcfg [2022-11-26 00:12:32,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:12:32,294 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:12:32,294 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:12:32,294 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:12:32,295 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:12:28" (3/4) ... [2022-11-26 00:12:32,297 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:12:32,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:12:32,298 INFO L158 Benchmark]: Toolchain (without parser) took 4637.25ms. Allocated memory is still 180.4MB. Free memory was 133.7MB in the beginning and 103.9MB in the end (delta: 29.8MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2022-11-26 00:12:32,299 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:12:32,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 664.27ms. Allocated memory is still 180.4MB. Free memory was 133.7MB in the beginning and 106.8MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-26 00:12:32,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.55ms. Allocated memory is still 180.4MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:12:32,300 INFO L158 Benchmark]: Boogie Preprocessor took 27.35ms. Allocated memory is still 180.4MB. Free memory was 104.7MB in the beginning and 103.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:12:32,301 INFO L158 Benchmark]: RCFGBuilder took 442.01ms. Allocated memory is still 180.4MB. Free memory was 103.0MB in the beginning and 140.7MB in the end (delta: -37.7MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-11-26 00:12:32,301 INFO L158 Benchmark]: TraceAbstraction took 3442.58ms. Allocated memory is still 180.4MB. Free memory was 139.8MB in the beginning and 104.9MB in the end (delta: 34.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2022-11-26 00:12:32,302 INFO L158 Benchmark]: Witness Printer took 3.74ms. Allocated memory is still 180.4MB. Free memory was 104.9MB in the beginning and 103.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:12:32,305 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 65.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 664.27ms. Allocated memory is still 180.4MB. Free memory was 133.7MB in the beginning and 106.8MB in the end (delta: 26.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.55ms. Allocated memory is still 180.4MB. Free memory was 106.8MB in the beginning and 104.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.35ms. Allocated memory is still 180.4MB. Free memory was 104.7MB in the beginning and 103.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 442.01ms. Allocated memory is still 180.4MB. Free memory was 103.0MB in the beginning and 140.7MB in the end (delta: -37.7MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3442.58ms. Allocated memory is still 180.4MB. Free memory was 139.8MB in the beginning and 104.9MB in the end (delta: 34.9MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 3.74ms. Allocated memory is still 180.4MB. Free memory was 104.9MB in the beginning and 103.9MB 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: 1.6s, 60 PlacesBefore, 28 PlacesAfterwards, 56 TransitionsBefore, 24 TransitionsAfterwards, 760 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 32 TotalNumberOfCompositions, 2875 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 792, independent: 572, independent conditional: 0, independent unconditional: 572, dependent: 220, dependent conditional: 0, dependent unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 444, independent: 382, independent conditional: 0, independent unconditional: 382, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 444, independent: 370, independent conditional: 0, independent unconditional: 370, dependent: 74, dependent conditional: 0, dependent unconditional: 74, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 74, independent: 12, independent conditional: 0, independent unconditional: 12, dependent: 62, dependent conditional: 0, dependent unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 242, independent: 25, independent conditional: 0, independent unconditional: 25, dependent: 218, dependent conditional: 0, dependent unconditional: 218, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 792, independent: 190, independent conditional: 0, independent unconditional: 190, dependent: 158, dependent conditional: 0, dependent unconditional: 158, unknown: 444, unknown conditional: 0, unknown unconditional: 444] , Statistics on independence cache: Total cache size (in pairs): 86, Positive cache size: 43, Positive conditional cache size: 0, Positive unconditional cache size: 43, Negative cache size: 43, Negative conditional cache size: 0, Negative unconditional cache size: 43, 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: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; [L923] 0 pthread_t id; [L924] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, myglobal={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L919] EXPR 1 \read(myglobal) VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] [L919] 1 myglobal+1 VAL [\read(myglobal)=0, arg={0:0}, arg={0:0}, myglobal={1:0}] Now there is a data race (on the heap) between C: scanf("%d", &myglobal) [925] and C: myglobal+1 [919] - UnprovableResult [Line: 925]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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: 919]: 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, 79 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 373 IncrementalHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 21 mSDtfsCounter, 373 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=196occurred in iteration=2, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 103 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:12:32,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07c0dba1-5654-4476-9740-5cffd4d64bb8/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