./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b 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_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc --- 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-6b4ec56 [2022-11-20 12:03:44,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:03:44,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:03:44,745 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:03:44,747 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:03:44,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:03:44,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:03:44,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:03:44,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:03:44,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:03:44,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:03:44,791 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:03:44,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:03:44,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:03:44,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:03:44,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:03:44,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:03:44,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:03:44,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:03:44,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:03:44,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:03:44,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:03:44,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:03:44,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:03:44,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:03:44,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:03:44,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:03:44,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:03:44,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:03:44,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:03:44,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:03:44,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:03:44,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:03:44,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:03:44,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:03:44,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:03:44,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:03:44,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:03:44,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:03:44,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:03:44,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:03:44,860 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 12:03:44,911 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:03:44,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:03:44,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:03:44,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:03:44,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:03:44,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:03:44,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:03:44,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:03:44,917 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:03:44,917 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:03:44,919 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 12:03:44,919 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 12:03:44,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:03:44,920 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 12:03:44,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:03:44,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:03:44,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:03:44,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:03:44,921 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 12:03:44,922 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 12:03:44,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:03:44,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:03:44,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:03:44,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:03:44,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:03:44,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:03:44,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:03:44,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:03:44,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:03:44,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:03:44,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:03:44,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:03:44,926 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:03:44,927 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:03:44,927 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:03:44,927 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_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc [2022-11-20 12:03:45,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:03:45,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:03:45,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:03:45,394 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:03:45,395 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:03:45,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-divine/barrier_3t.i [2022-11-20 12:03:48,923 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:03:49,225 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:03:49,226 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i [2022-11-20 12:03:49,243 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/data/b80066f93/b3d3ea8ef01a4ec9bee93508377dc97a/FLAG0ee5e092d [2022-11-20 12:03:49,262 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/data/b80066f93/b3d3ea8ef01a4ec9bee93508377dc97a [2022-11-20 12:03:49,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:03:49,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:03:49,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:03:49,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:03:49,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:03:49,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:03:49" (1/1) ... [2022-11-20 12:03:49,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b199588 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:49, skipping insertion in model container [2022-11-20 12:03:49,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:03:49" (1/1) ... [2022-11-20 12:03:49,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:03:49,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:03:49,600 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 12:03:49,860 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[30484,30497] [2022-11-20 12:03:49,926 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[31858,31871] [2022-11-20 12:03:49,929 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[31909,31922] [2022-11-20 12:03:49,944 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32058,32071] [2022-11-20 12:03:49,947 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32135,32148] [2022-11-20 12:03:49,948 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32182,32195] [2022-11-20 12:03:49,953 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32291,32304] [2022-11-20 12:03:49,959 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32410,32423] [2022-11-20 12:03:49,963 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32458,32471] [2022-11-20 12:03:49,966 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32535,32548] [2022-11-20 12:03:49,969 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32661,32674] [2022-11-20 12:03:49,984 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[33244,33257] [2022-11-20 12:03:49,992 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[33321,33334] [2022-11-20 12:03:49,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:03:50,015 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:03:50,031 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 12:03:50,067 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[30484,30497] [2022-11-20 12:03:50,088 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[31858,31871] [2022-11-20 12:03:50,095 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[31909,31922] [2022-11-20 12:03:50,098 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32058,32071] [2022-11-20 12:03:50,099 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32135,32148] [2022-11-20 12:03:50,100 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32182,32195] [2022-11-20 12:03:50,103 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32291,32304] [2022-11-20 12:03:50,105 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32410,32423] [2022-11-20 12:03:50,106 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32458,32471] [2022-11-20 12:03:50,107 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32535,32548] [2022-11-20 12:03:50,110 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[32661,32674] [2022-11-20 12:03:50,132 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[33244,33257] [2022-11-20 12:03:50,133 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/sv-benchmarks/c/pthread-divine/barrier_3t.i[33321,33334] [2022-11-20 12:03:50,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:03:50,180 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:03:50,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50 WrapperNode [2022-11-20 12:03:50,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:03:50,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:03:50,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:03:50,182 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:03:50,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,309 INFO L138 Inliner]: procedures = 174, calls = 83, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 955 [2022-11-20 12:03:50,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:03:50,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:03:50,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:03:50,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:03:50,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,500 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:03:50,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:03:50,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:03:50,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:03:50,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (1/1) ... [2022-11-20 12:03:50,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:03:50,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:03:50,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:03:50,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc25809-a591-4f0e-92fc-8fe22c587d66/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:03:50,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 12:03:50,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 12:03:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 12:03:50,610 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-11-20 12:03:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-11-20 12:03:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 12:03:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 12:03:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 12:03:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 12:03:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 12:03:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 12:03:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:03:50,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:03:50,618 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 12:03:50,922 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:03:50,925 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:03:53,009 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:03:53,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:03:53,054 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-11-20 12:03:53,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:03:53 BoogieIcfgContainer [2022-11-20 12:03:53,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:03:53,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:03:53,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:03:53,065 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:03:53,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:03:49" (1/3) ... [2022-11-20 12:03:53,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a39693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:03:53, skipping insertion in model container [2022-11-20 12:03:53,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:03:50" (2/3) ... [2022-11-20 12:03:53,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12a39693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:03:53, skipping insertion in model container [2022-11-20 12:03:53,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:03:53" (3/3) ... [2022-11-20 12:03:53,070 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_3t.i [2022-11-20 12:03:53,081 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 12:03:53,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:03:53,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2022-11-20 12:03:53,096 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 12:03:53,429 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 12:03:53,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1023 places, 1090 transitions, 2188 flow [2022-11-20 12:03:54,682 INFO L130 PetriNetUnfolder]: 106/1598 cut-off events. [2022-11-20 12:03:54,683 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 12:03:54,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1604 conditions, 1598 events. 106/1598 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 6064 event pairs, 0 based on Foata normal form. 0/1344 useless extension candidates. Maximal degree in co-relation 964. Up to 4 conditions per place. [2022-11-20 12:03:54,751 INFO L82 GeneralOperation]: Start removeDead. Operand has 1023 places, 1090 transitions, 2188 flow [2022-11-20 12:03:54,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1023 places, 1090 transitions, 2188 flow [2022-11-20 12:03:54,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:03:54,834 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=PETRI_NET, 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;@70424206, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:03:54,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 143 error locations. [2022-11-20 12:03:54,914 INFO L130 PetriNetUnfolder]: 2/59 cut-off events. [2022-11-20 12:03:54,914 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 12:03:54,914 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:03:54,915 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:03:54,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:03:54,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:03:54,921 INFO L85 PathProgramCache]: Analyzing trace with hash -47129527, now seen corresponding path program 1 times [2022-11-20 12:03:54,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:03:54,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221979629] [2022-11-20 12:03:54,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:03:54,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:03:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:03:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:03:56,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:03:56,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221979629] [2022-11-20 12:03:56,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221979629] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:03:56,110 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:03:56,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:03:56,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426501396] [2022-11-20 12:03:56,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:03:56,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:03:56,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:03:56,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:03:56,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:03:56,183 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 1090 [2022-11-20 12:03:56,197 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1023 places, 1090 transitions, 2188 flow. Second operand has 6 states, 6 states have (on average 590.8333333333334) internal successors, (3545), 6 states have internal predecessors, (3545), 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) [2022-11-20 12:03:56,197 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:03:56,198 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 1090 [2022-11-20 12:03:56,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:42,565 INFO L130 PetriNetUnfolder]: 46311/142404 cut-off events. [2022-11-20 12:04:42,566 INFO L131 PetriNetUnfolder]: For 5/10 co-relation queries the response was YES. [2022-11-20 12:04:42,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227528 conditions, 142404 events. 46311/142404 cut-off events. For 5/10 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 1600646 event pairs, 40950 based on Foata normal form. 10095/127437 useless extension candidates. Maximal degree in co-relation 226648. Up to 85112 conditions per place. [2022-11-20 12:04:43,343 INFO L137 encePairwiseOnDemand]: 1041/1090 looper letters, 452 selfloop transitions, 5 changer transitions 1/1046 dead transitions. [2022-11-20 12:04:43,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1027 places, 1046 transitions, 3014 flow [2022-11-20 12:04:43,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 12:04:43,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 12:04:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4035 transitions. [2022-11-20 12:04:43,384 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6169724770642202 [2022-11-20 12:04:43,385 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4035 transitions. [2022-11-20 12:04:43,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4035 transitions. [2022-11-20 12:04:43,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:43,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4035 transitions. [2022-11-20 12:04:43,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 672.5) internal successors, (4035), 6 states have internal predecessors, (4035), 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) [2022-11-20 12:04:43,442 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1090.0) internal successors, (7630), 7 states have internal predecessors, (7630), 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) [2022-11-20 12:04:43,453 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1090.0) internal successors, (7630), 7 states have internal predecessors, (7630), 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) [2022-11-20 12:04:43,456 INFO L175 Difference]: Start difference. First operand has 1023 places, 1090 transitions, 2188 flow. Second operand 6 states and 4035 transitions. [2022-11-20 12:04:43,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1027 places, 1046 transitions, 3014 flow [2022-11-20 12:04:43,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1027 places, 1046 transitions, 3014 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 12:04:43,507 INFO L231 Difference]: Finished difference. Result has 1027 places, 1045 transitions, 2108 flow [2022-11-20 12:04:43,513 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=2100, PETRI_DIFFERENCE_MINUEND_PLACES=1022, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1046, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1041, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2108, PETRI_PLACES=1027, PETRI_TRANSITIONS=1045} [2022-11-20 12:04:43,521 INFO L288 CegarLoopForPetriNet]: 1023 programPoint places, 4 predicate places. [2022-11-20 12:04:43,521 INFO L495 AbstractCegarLoop]: Abstraction has has 1027 places, 1045 transitions, 2108 flow [2022-11-20 12:04:43,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 590.8333333333334) internal successors, (3545), 6 states have internal predecessors, (3545), 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) [2022-11-20 12:04:43,530 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:43,531 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:43,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:04:43,532 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:04:43,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:43,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1521546570, now seen corresponding path program 1 times [2022-11-20 12:04:43,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:43,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934024900] [2022-11-20 12:04:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:43,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:43,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:43,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:43,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:43,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934024900] [2022-11-20 12:04:43,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934024900] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:43,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:43,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 12:04:43,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822176697] [2022-11-20 12:04:43,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:43,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 12:04:43,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:43,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 12:04:43,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 12:04:43,672 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1018 out of 1090 [2022-11-20 12:04:43,678 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1027 places, 1045 transitions, 2108 flow. Second operand has 3 states, 3 states have (on average 1019.0) internal successors, (3057), 3 states have internal predecessors, (3057), 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) [2022-11-20 12:04:43,678 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:43,678 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1018 of 1090 [2022-11-20 12:04:43,678 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 12:04:44,419 INFO L130 PetriNetUnfolder]: 40/1559 cut-off events. [2022-11-20 12:04:44,419 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-20 12:04:44,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1628 conditions, 1559 events. 40/1559 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 5723 event pairs, 0 based on Foata normal form. 0/1336 useless extension candidates. Maximal degree in co-relation 1508. Up to 29 conditions per place. [2022-11-20 12:04:44,467 INFO L137 encePairwiseOnDemand]: 1087/1090 looper letters, 49 selfloop transitions, 2 changer transitions 0/1068 dead transitions. [2022-11-20 12:04:44,468 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1028 places, 1068 transitions, 2264 flow [2022-11-20 12:04:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 12:04:44,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 12:04:44,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3106 transitions. [2022-11-20 12:04:44,477 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9498470948012232 [2022-11-20 12:04:44,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3106 transitions. [2022-11-20 12:04:44,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3106 transitions. [2022-11-20 12:04:44,481 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 12:04:44,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3106 transitions. [2022-11-20 12:04:44,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1035.3333333333333) internal successors, (3106), 3 states have internal predecessors, (3106), 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) [2022-11-20 12:04:44,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1090.0) internal successors, (4360), 4 states have internal predecessors, (4360), 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) [2022-11-20 12:04:44,503 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1090.0) internal successors, (4360), 4 states have internal predecessors, (4360), 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) [2022-11-20 12:04:44,504 INFO L175 Difference]: Start difference. First operand has 1027 places, 1045 transitions, 2108 flow. Second operand 3 states and 3106 transitions. [2022-11-20 12:04:44,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1028 places, 1068 transitions, 2264 flow [2022-11-20 12:04:44,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1023 places, 1068 transitions, 2246 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-20 12:04:44,527 INFO L231 Difference]: Finished difference. Result has 1024 places, 1046 transitions, 2110 flow [2022-11-20 12:04:44,529 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1090, PETRI_DIFFERENCE_MINUEND_FLOW=2098, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1043, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2110, PETRI_PLACES=1024, PETRI_TRANSITIONS=1046} [2022-11-20 12:04:44,530 INFO L288 CegarLoopForPetriNet]: 1023 programPoint places, 1 predicate places. [2022-11-20 12:04:44,530 INFO L495 AbstractCegarLoop]: Abstraction has has 1024 places, 1046 transitions, 2110 flow [2022-11-20 12:04:44,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1019.0) internal successors, (3057), 3 states have internal predecessors, (3057), 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) [2022-11-20 12:04:44,533 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 12:04:44,533 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 12:04:44,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 12:04:44,534 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-11-20 12:04:44,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:04:44,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1890372533, now seen corresponding path program 1 times [2022-11-20 12:04:44,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:04:44,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838884484] [2022-11-20 12:04:44,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:04:44,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:04:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:04:44,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:04:45,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 12:04:45,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838884484] [2022-11-20 12:04:45,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838884484] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:04:45,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:04:45,004 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 12:04:45,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105899059] [2022-11-20 12:04:45,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:04:45,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 12:04:45,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 12:04:45,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 12:04:45,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 12:04:45,016 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 589 out of 1090 [2022-11-20 12:04:45,022 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1024 places, 1046 transitions, 2110 flow. Second operand has 6 states, 6 states have (on average 591.8333333333334) internal successors, (3551), 6 states have internal predecessors, (3551), 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) [2022-11-20 12:04:45,022 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 12:04:45,023 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 589 of 1090 [2022-11-20 12:04:45,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand