./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 2329fc70 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_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8 --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-2329fc7 [2022-12-13 18:48:01,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:48:01,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:48:01,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:48:01,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:48:01,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:48:01,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:48:01,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:48:01,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:48:01,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:48:01,305 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:48:01,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:48:01,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:48:01,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:48:01,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:48:01,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:48:01,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:48:01,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:48:01,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:48:01,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:48:01,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:48:01,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:48:01,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:48:01,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:48:01,322 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:48:01,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:48:01,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:48:01,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:48:01,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:48:01,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:48:01,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:48:01,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:48:01,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:48:01,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:48:01,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:48:01,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:48:01,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:48:01,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:48:01,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:48:01,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:48:01,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:48:01,332 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 18:48:01,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:48:01,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:48:01,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:48:01,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:48:01,354 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:48:01,355 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:48:01,355 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:48:01,355 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:48:01,356 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:48:01,356 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:48:01,356 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:48:01,356 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:48:01,356 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:48:01,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:48:01,357 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:48:01,357 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:48:01,357 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:48:01,357 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:48:01,358 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 18:48:01,358 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:48:01,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:48:01,358 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:48:01,358 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:48:01,358 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:48:01,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:48:01,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:48:01,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:48:01,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:48:01,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:48:01,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:48:01,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:48:01,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:48:01,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:48:01,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:48:01,360 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:48:01,361 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:48:01,361 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:48:01,361 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 116240ce9d1e33454ba4eae840c2d7b67606f3cd4ffa1a06798f06dcbc1241fc [2022-12-13 18:48:01,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:48:01,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:48:01,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:48:01,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:48:01,564 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:48:01,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-divine/barrier_3t.i [2022-12-13 18:48:04,169 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:48:04,413 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:48:04,414 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i [2022-12-13 18:48:04,425 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/data/e9800eba2/ade8f168342f4011bb40c179111768c8/FLAGe07405400 [2022-12-13 18:48:04,439 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/data/e9800eba2/ade8f168342f4011bb40c179111768c8 [2022-12-13 18:48:04,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:48:04,442 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:48:04,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:48:04,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:48:04,447 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:48:04,447 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:04,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1635067e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04, skipping insertion in model container [2022-12-13 18:48:04,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:04,455 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:48:04,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:48:04,632 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:48:04,787 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[30484,30497] [2022-12-13 18:48:04,808 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[31858,31871] [2022-12-13 18:48:04,809 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[31909,31922] [2022-12-13 18:48:04,810 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32058,32071] [2022-12-13 18:48:04,811 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32135,32148] [2022-12-13 18:48:04,812 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32182,32195] [2022-12-13 18:48:04,813 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32291,32304] [2022-12-13 18:48:04,814 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32410,32423] [2022-12-13 18:48:04,815 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32458,32471] [2022-12-13 18:48:04,816 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32535,32548] [2022-12-13 18:48:04,817 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32661,32674] [2022-12-13 18:48:04,823 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[33244,33257] [2022-12-13 18:48:04,824 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[33321,33334] [2022-12-13 18:48:04,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:48:04,833 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:48:04,842 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:48:04,855 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[30484,30497] [2022-12-13 18:48:04,864 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[31858,31871] [2022-12-13 18:48:04,864 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[31909,31922] [2022-12-13 18:48:04,866 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32058,32071] [2022-12-13 18:48:04,867 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32135,32148] [2022-12-13 18:48:04,867 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32182,32195] [2022-12-13 18:48:04,869 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32291,32304] [2022-12-13 18:48:04,870 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32410,32423] [2022-12-13 18:48:04,870 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32458,32471] [2022-12-13 18:48:04,871 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32535,32548] [2022-12-13 18:48:04,872 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[32661,32674] [2022-12-13 18:48:04,878 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[33244,33257] [2022-12-13 18:48:04,879 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_ad869334-0a2a-4041-a808-9cc9537ebf24/sv-benchmarks/c/pthread-divine/barrier_3t.i[33321,33334] [2022-12-13 18:48:04,879 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:48:04,902 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:48:04,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04 WrapperNode [2022-12-13 18:48:04,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:48:04,903 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:48:04,903 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:48:04,903 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:48:04,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:04,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:04,959 INFO L138 Inliner]: procedures = 174, calls = 83, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 955 [2022-12-13 18:48:04,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:48:04,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:48:04,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:48:04,960 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:48:04,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:04,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:04,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:04,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:05,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:05,013 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:05,019 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:05,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:05,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:48:05,033 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:48:05,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:48:05,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:48:05,034 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (1/1) ... [2022-12-13 18:48:05,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:48:05,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:48:05,060 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:48:05,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:48:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:48:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:48:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 18:48:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-12-13 18:48:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-12-13 18:48:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:48:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 18:48:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:48:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 18:48:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:48:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:48:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:48:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:48:05,091 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 18:48:05,225 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:48:05,226 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:48:06,147 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:48:06,159 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:48:06,160 INFO L300 CfgBuilder]: Removed 20 assume(true) statements. [2022-12-13 18:48:06,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:48:06 BoogieIcfgContainer [2022-12-13 18:48:06,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:48:06,165 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:48:06,165 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:48:06,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:48:06,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:48:04" (1/3) ... [2022-12-13 18:48:06,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798b389a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:48:06, skipping insertion in model container [2022-12-13 18:48:06,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:48:04" (2/3) ... [2022-12-13 18:48:06,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798b389a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:48:06, skipping insertion in model container [2022-12-13 18:48:06,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:48:06" (3/3) ... [2022-12-13 18:48:06,170 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_3t.i [2022-12-13 18:48:06,176 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 18:48:06,184 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:48:06,184 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2022-12-13 18:48:06,184 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:48:06,330 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 18:48:06,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1023 places, 1090 transitions, 2188 flow [2022-12-13 18:48:07,033 INFO L130 PetriNetUnfolder]: 106/1598 cut-off events. [2022-12-13 18:48:07,033 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 18:48:07,064 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 6059 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. [2022-12-13 18:48:07,065 INFO L82 GeneralOperation]: Start removeDead. Operand has 1023 places, 1090 transitions, 2188 flow [2022-12-13 18:48:07,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1023 places, 1090 transitions, 2188 flow [2022-12-13 18:48:07,088 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:48:07,096 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1023 places, 1090 transitions, 2188 flow [2022-12-13 18:48:07,098 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1023 places, 1090 transitions, 2188 flow [2022-12-13 18:48:07,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1023 places, 1090 transitions, 2188 flow [2022-12-13 18:48:07,604 INFO L130 PetriNetUnfolder]: 106/1598 cut-off events. [2022-12-13 18:48:07,604 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 18:48:07,617 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 6059 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. [2022-12-13 18:48:07,711 INFO L119 LiptonReduction]: Number of co-enabled transitions 463628 [2022-12-13 18:48:42,398 WARN L233 SmtUtils]: Spent 8.41s on a formula simplification. DAG size of input: 127 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:48:53,153 WARN L233 SmtUtils]: Spent 8.14s on a formula simplification. DAG size of input: 127 DAG size of output: 123 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:49:13,513 WARN L233 SmtUtils]: Spent 17.49s on a formula simplification that was a NOOP. DAG size: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:49:24,046 WARN L233 SmtUtils]: Spent 10.53s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:49:43,202 WARN L233 SmtUtils]: Spent 19.15s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:49:55,953 WARN L233 SmtUtils]: Spent 12.75s on a formula simplification that was a NOOP. DAG size: 159 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:50:02,071 INFO L134 LiptonReduction]: Checked pairs total: 2742349 [2022-12-13 18:50:02,071 INFO L136 LiptonReduction]: Total number of compositions: 649 [2022-12-13 18:50:02,081 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:50:02,084 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;@62ec2608, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:50:02,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 143 error locations. [2022-12-13 18:50:02,086 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 18:50:02,087 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:50:02,087 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:50:02,087 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 18:50:02,087 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)] === [2022-12-13 18:50:02,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:50:02,091 INFO L85 PathProgramCache]: Analyzing trace with hash 115485, now seen corresponding path program 1 times [2022-12-13 18:50:02,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:50:02,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721450747] [2022-12-13 18:50:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:50:02,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:50:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:50:02,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:50:02,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721450747] [2022-12-13 18:50:02,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721450747] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:50:02,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:50:02,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 18:50:02,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771686755] [2022-12-13 18:50:02,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:50:02,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:50:02,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:50:02,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:50:02,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:50:02,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1045 out of 1739 [2022-12-13 18:50:02,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 554 places, 601 transitions, 1210 flow. Second operand has 2 states, 2 states have (on average 1046.0) internal successors, (2092), 2 states have internal predecessors, (2092), 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) [2022-12-13 18:50:02,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:50:02,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1045 of 1739 [2022-12-13 18:50:02,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:50:07,185 INFO L130 PetriNetUnfolder]: 11321/35438 cut-off events. [2022-12-13 18:50:07,186 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-12-13 18:50:07,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55933 conditions, 35438 events. 11321/35438 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 361060 event pairs, 8989 based on Foata normal form. 2020/33312 useless extension candidates. Maximal degree in co-relation 55512. Up to 20489 conditions per place. [2022-12-13 18:50:07,317 INFO L137 encePairwiseOnDemand]: 1709/1739 looper letters, 219 selfloop transitions, 0 changer transitions 0/566 dead transitions. [2022-12-13 18:50:07,318 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 543 places, 566 transitions, 1578 flow [2022-12-13 18:50:07,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:50:07,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 18:50:07,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2339 transitions. [2022-12-13 18:50:07,335 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6725129384703853 [2022-12-13 18:50:07,335 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 2339 transitions. [2022-12-13 18:50:07,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 2339 transitions. [2022-12-13 18:50:07,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:50:07,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 2339 transitions. [2022-12-13 18:50:07,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 1169.5) internal successors, (2339), 2 states have internal predecessors, (2339), 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) [2022-12-13 18:50:07,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1739.0) internal successors, (5217), 3 states have internal predecessors, (5217), 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) [2022-12-13 18:50:07,367 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1739.0) internal successors, (5217), 3 states have internal predecessors, (5217), 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) [2022-12-13 18:50:07,369 INFO L175 Difference]: Start difference. First operand has 554 places, 601 transitions, 1210 flow. Second operand 2 states and 2339 transitions. [2022-12-13 18:50:07,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 543 places, 566 transitions, 1578 flow [2022-12-13 18:50:07,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 543 places, 566 transitions, 1578 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:50:07,389 INFO L231 Difference]: Finished difference. Result has 543 places, 566 transitions, 1140 flow [2022-12-13 18:50:07,391 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1739, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=566, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1140, PETRI_PLACES=543, PETRI_TRANSITIONS=566} [2022-12-13 18:50:07,395 INFO L288 CegarLoopForPetriNet]: 554 programPoint places, -11 predicate places. [2022-12-13 18:50:07,396 INFO L495 AbstractCegarLoop]: Abstraction has has 543 places, 566 transitions, 1140 flow [2022-12-13 18:50:07,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1046.0) internal successors, (2092), 2 states have internal predecessors, (2092), 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) [2022-12-13 18:50:07,397 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:50:07,398 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2022-12-13 18:50:07,398 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:50:07,398 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-12-13 18:50:07,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:50:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash -678684077, now seen corresponding path program 1 times [2022-12-13 18:50:07,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:50:07,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143545855] [2022-12-13 18:50:07,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:50:07,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:50:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:50:07,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:50:07,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143545855] [2022-12-13 18:50:07,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143545855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:50:07,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:50:07,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:50:07,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238284212] [2022-12-13 18:50:07,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:50:07,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:50:07,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:50:07,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:50:07,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:50:07,577 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1041 out of 1739 [2022-12-13 18:50:07,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 543 places, 566 transitions, 1140 flow. Second operand has 3 states, 3 states have (on average 1042.6666666666667) internal successors, (3128), 3 states have internal predecessors, (3128), 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) [2022-12-13 18:50:07,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:50:07,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1041 of 1739 [2022-12-13 18:50:07,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:50:12,748 INFO L130 PetriNetUnfolder]: 11321/35439 cut-off events. [2022-12-13 18:50:12,749 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-12-13 18:50:12,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55936 conditions, 35439 events. 11321/35439 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 360981 event pairs, 8989 based on Foata normal form. 0/31293 useless extension candidates. Maximal degree in co-relation 55932. Up to 20489 conditions per place. [2022-12-13 18:50:12,870 INFO L137 encePairwiseOnDemand]: 1736/1739 looper letters, 218 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2022-12-13 18:50:12,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 545 places, 567 transitions, 1582 flow [2022-12-13 18:50:12,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:50:12,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:50:12,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3344 transitions. [2022-12-13 18:50:12,876 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6409814069388537 [2022-12-13 18:50:12,876 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 3344 transitions. [2022-12-13 18:50:12,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3344 transitions. [2022-12-13 18:50:12,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:50:12,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 3344 transitions. [2022-12-13 18:50:12,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 1114.6666666666667) internal successors, (3344), 3 states have internal predecessors, (3344), 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) [2022-12-13 18:50:12,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1739.0) internal successors, (6956), 4 states have internal predecessors, (6956), 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) [2022-12-13 18:50:12,895 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1739.0) internal successors, (6956), 4 states have internal predecessors, (6956), 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) [2022-12-13 18:50:12,895 INFO L175 Difference]: Start difference. First operand has 543 places, 566 transitions, 1140 flow. Second operand 3 states and 3344 transitions. [2022-12-13 18:50:12,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 545 places, 567 transitions, 1582 flow [2022-12-13 18:50:12,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 545 places, 567 transitions, 1582 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:50:12,904 INFO L231 Difference]: Finished difference. Result has 546 places, 567 transitions, 1152 flow [2022-12-13 18:50:12,904 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1739, PETRI_DIFFERENCE_MINUEND_FLOW=1140, PETRI_DIFFERENCE_MINUEND_PLACES=543, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=566, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1152, PETRI_PLACES=546, PETRI_TRANSITIONS=567} [2022-12-13 18:50:12,905 INFO L288 CegarLoopForPetriNet]: 554 programPoint places, -8 predicate places. [2022-12-13 18:50:12,905 INFO L495 AbstractCegarLoop]: Abstraction has has 546 places, 567 transitions, 1152 flow [2022-12-13 18:50:12,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1042.6666666666667) internal successors, (3128), 3 states have internal predecessors, (3128), 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) [2022-12-13 18:50:12,906 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:50:12,907 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 18:50:12,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:50:12,907 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-12-13 18:50:12,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:50:12,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1544598785, now seen corresponding path program 1 times [2022-12-13 18:50:12,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:50:12,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460453402] [2022-12-13 18:50:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:50:12,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:50:12,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:12,995 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:50:12,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:50:12,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460453402] [2022-12-13 18:50:12,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460453402] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:50:12,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523055958] [2022-12-13 18:50:12,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:50:12,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:50:12,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:50:12,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:50:12,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 18:50:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:50:13,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 18:50:13,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:50:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:50:13,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:50:13,164 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-13 18:50:13,164 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523055958] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:50:13,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:50:13,165 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 18:50:13,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741691042] [2022-12-13 18:50:13,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:50:13,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:50:13,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:50:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:50:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:50:13,262 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1040 out of 1739 [2022-12-13 18:50:13,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 546 places, 567 transitions, 1152 flow. Second operand has 6 states, 6 states have (on average 1041.8333333333333) internal successors, (6251), 6 states have internal predecessors, (6251), 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) [2022-12-13 18:50:13,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:50:13,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1040 of 1739 [2022-12-13 18:50:13,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:50:18,963 INFO L130 PetriNetUnfolder]: 11321/35441 cut-off events. [2022-12-13 18:50:18,963 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-12-13 18:50:19,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55949 conditions, 35441 events. 11321/35441 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 316. Compared 361087 event pairs, 8989 based on Foata normal form. 0/31295 useless extension candidates. Maximal degree in co-relation 55943. Up to 20489 conditions per place. [2022-12-13 18:50:19,074 INFO L137 encePairwiseOnDemand]: 1736/1739 looper letters, 218 selfloop transitions, 4 changer transitions 0/569 dead transitions. [2022-12-13 18:50:19,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 569 transitions, 1604 flow [2022-12-13 18:50:19,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:50:19,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 18:50:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5424 transitions. [2022-12-13 18:50:19,082 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6238067855089132 [2022-12-13 18:50:19,083 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 5424 transitions. [2022-12-13 18:50:19,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5424 transitions. [2022-12-13 18:50:19,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:50:19,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 5424 transitions. [2022-12-13 18:50:19,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 1084.8) internal successors, (5424), 5 states have internal predecessors, (5424), 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) [2022-12-13 18:50:19,104 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1739.0) internal successors, (10434), 6 states have internal predecessors, (10434), 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) [2022-12-13 18:50:19,107 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1739.0) internal successors, (10434), 6 states have internal predecessors, (10434), 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) [2022-12-13 18:50:19,107 INFO L175 Difference]: Start difference. First operand has 546 places, 567 transitions, 1152 flow. Second operand 5 states and 5424 transitions. [2022-12-13 18:50:19,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 569 transitions, 1604 flow [2022-12-13 18:50:19,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 569 transitions, 1600 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 18:50:19,115 INFO L231 Difference]: Finished difference. Result has 551 places, 569 transitions, 1174 flow [2022-12-13 18:50:19,115 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1739, PETRI_DIFFERENCE_MINUEND_FLOW=1148, PETRI_DIFFERENCE_MINUEND_PLACES=545, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1174, PETRI_PLACES=551, PETRI_TRANSITIONS=569} [2022-12-13 18:50:19,116 INFO L288 CegarLoopForPetriNet]: 554 programPoint places, -3 predicate places. [2022-12-13 18:50:19,116 INFO L495 AbstractCegarLoop]: Abstraction has has 551 places, 569 transitions, 1174 flow [2022-12-13 18:50:19,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1041.8333333333333) internal successors, (6251), 6 states have internal predecessors, (6251), 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) [2022-12-13 18:50:19,118 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:50:19,118 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2022-12-13 18:50:19,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:50:19,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad869334-0a2a-4041-a808-9cc9537ebf24/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:50:19,320 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 140 more)] === [2022-12-13 18:50:19,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:50:19,321 INFO L85 PathProgramCache]: Analyzing trace with hash -571992255, now seen corresponding path program 2 times [2022-12-13 18:50:19,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:50:19,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133827429] [2022-12-13 18:50:19,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:50:19,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:50:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:50:19,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:50:19,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:50:19,444 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:50:19,444 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:50:19,445 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (142 of 143 remaining) [2022-12-13 18:50:19,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (141 of 143 remaining) [2022-12-13 18:50:19,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (140 of 143 remaining) [2022-12-13 18:50:19,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (139 of 143 remaining) [2022-12-13 18:50:19,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (138 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (137 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (136 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (135 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (134 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (133 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (132 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (131 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (130 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (129 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (128 of 143 remaining) [2022-12-13 18:50:19,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (127 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (126 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (125 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (124 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (123 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (122 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (121 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (120 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (119 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (118 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (117 of 143 remaining) [2022-12-13 18:50:19,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (116 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (115 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (114 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (113 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE (112 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE (111 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE (110 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE (109 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE (108 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE (107 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE (106 of 143 remaining) [2022-12-13 18:50:19,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE (105 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE (104 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (103 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE (102 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr42ASSERT_VIOLATIONDATA_RACE (101 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE (100 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE (99 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE (98 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr44ASSERT_VIOLATIONDATA_RACE (97 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr45ASSERT_VIOLATIONDATA_RACE (96 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr46ASSERT_VIOLATIONDATA_RACE (95 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr47ASSERT_VIOLATIONDATA_RACE (94 of 143 remaining) [2022-12-13 18:50:19,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr50ASSERT_VIOLATIONDATA_RACE (93 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr48ASSERT_VIOLATIONDATA_RACE (92 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr49ASSERT_VIOLATIONDATA_RACE (91 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr51ASSERT_VIOLATIONDATA_RACE (90 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr52ASSERT_VIOLATIONDATA_RACE (89 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr53ASSERT_VIOLATIONDATA_RACE (88 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (87 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (86 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (85 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (84 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (83 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (82 of 143 remaining) [2022-12-13 18:50:19,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (81 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (80 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (79 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (78 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (77 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (76 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (75 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (74 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (73 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (72 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (71 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (70 of 143 remaining) [2022-12-13 18:50:19,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (69 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (68 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (67 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (66 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (65 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (64 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (63 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (62 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (61 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (60 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (59 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (58 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (57 of 143 remaining) [2022-12-13 18:50:19,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr34ASSERT_VIOLATIONDATA_RACE (56 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (55 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr35ASSERT_VIOLATIONDATA_RACE (54 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (53 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr36ASSERT_VIOLATIONDATA_RACE (52 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (51 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr37ASSERT_VIOLATIONDATA_RACE (50 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr38ASSERT_VIOLATIONDATA_RACE (49 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr39ASSERT_VIOLATIONDATA_RACE (48 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr40ASSERT_VIOLATIONDATA_RACE (47 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr43ASSERT_VIOLATIONDATA_RACE (46 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr41ASSERT_VIOLATIONDATA_RACE (45 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr42ASSERT_VIOLATIONDATA_RACE (44 of 143 remaining) [2022-12-13 18:50:19,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (43 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (42 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (41 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (40 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (39 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (38 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (37 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (36 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (35 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (34 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (33 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (32 of 143 remaining) [2022-12-13 18:50:19,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (31 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (30 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (29 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (28 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (27 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (26 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (25 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (24 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (23 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (22 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (21 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (20 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (19 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (18 of 143 remaining) [2022-12-13 18:50:19,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (17 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (16 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (15 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (14 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (13 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr34ASSERT_VIOLATIONDATA_RACE (12 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (11 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr35ASSERT_VIOLATIONDATA_RACE (10 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (9 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr36ASSERT_VIOLATIONDATA_RACE (8 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (7 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr37ASSERT_VIOLATIONDATA_RACE (6 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr38ASSERT_VIOLATIONDATA_RACE (5 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr39ASSERT_VIOLATIONDATA_RACE (4 of 143 remaining) [2022-12-13 18:50:19,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr40ASSERT_VIOLATIONDATA_RACE (3 of 143 remaining) [2022-12-13 18:50:19,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr43ASSERT_VIOLATIONDATA_RACE (2 of 143 remaining) [2022-12-13 18:50:19,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr41ASSERT_VIOLATIONDATA_RACE (1 of 143 remaining) [2022-12-13 18:50:19,458 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr42ASSERT_VIOLATIONDATA_RACE (0 of 143 remaining) [2022-12-13 18:50:19,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 18:50:19,458 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-13 18:50:19,460 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 18:50:19,460 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 18:50:19,569 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 18:50:19,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1447 places, 1543 transitions, 3104 flow [2022-12-13 18:50:20,745 INFO L130 PetriNetUnfolder]: 179/2618 cut-off events. [2022-12-13 18:50:20,745 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 18:50:20,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 2618 events. 179/2618 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13362 event pairs, 0 based on Foata normal form. 0/2196 useless extension candidates. Maximal degree in co-relation 1600. Up to 8 conditions per place. [2022-12-13 18:50:20,795 INFO L82 GeneralOperation]: Start removeDead. Operand has 1447 places, 1543 transitions, 3104 flow [2022-12-13 18:50:20,826 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1447 places, 1543 transitions, 3104 flow [2022-12-13 18:50:20,826 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:50:20,826 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1447 places, 1543 transitions, 3104 flow [2022-12-13 18:50:20,826 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1447 places, 1543 transitions, 3104 flow [2022-12-13 18:50:20,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1447 places, 1543 transitions, 3104 flow [2022-12-13 18:50:21,767 INFO L130 PetriNetUnfolder]: 179/2618 cut-off events. [2022-12-13 18:50:21,767 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 18:50:21,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 2618 events. 179/2618 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 13362 event pairs, 0 based on Foata normal form. 0/2196 useless extension candidates. Maximal degree in co-relation 1600. Up to 8 conditions per place. [2022-12-13 18:50:22,227 INFO L119 LiptonReduction]: Number of co-enabled transitions 1343980 [2022-12-13 18:51:35,969 WARN L233 SmtUtils]: Spent 35.04s on a formula simplification. DAG size of input: 167 DAG size of output: 161 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:51:46,100 WARN L233 SmtUtils]: Spent 10.13s on a formula simplification that was a NOOP. DAG size: 153 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:52:22,895 WARN L233 SmtUtils]: Spent 36.79s on a formula simplification. DAG size of input: 173 DAG size of output: 167 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:52:37,510 WARN L233 SmtUtils]: Spent 14.61s on a formula simplification that was a NOOP. DAG size: 159 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 18:52:50,216 INFO L134 LiptonReduction]: Checked pairs total: 7178446 [2022-12-13 18:52:50,216 INFO L136 LiptonReduction]: Total number of compositions: 864 [2022-12-13 18:52:50,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:52:50,219 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;@62ec2608, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:52:50,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 187 error locations. [2022-12-13 18:52:50,221 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 18:52:50,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:52:50,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:52:50,221 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 18:52:50,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 184 more)] === [2022-12-13 18:52:50,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:52:50,222 INFO L85 PathProgramCache]: Analyzing trace with hash 207193, now seen corresponding path program 1 times [2022-12-13 18:52:50,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:52:50,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583740649] [2022-12-13 18:52:50,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:52:50,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:52:50,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:52:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:52:50,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:52:50,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583740649] [2022-12-13 18:52:50,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583740649] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:52:50,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:52:50,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 18:52:50,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913891966] [2022-12-13 18:52:50,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:52:50,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:52:50,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:52:50,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:52:50,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:52:50,237 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1478 out of 2407 [2022-12-13 18:52:50,239 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 819 places, 888 transitions, 1794 flow. Second operand has 2 states, 2 states have (on average 1479.0) internal successors, (2958), 2 states have internal predecessors, (2958), 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) [2022-12-13 18:52:50,239 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:52:50,239 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1478 of 2407 [2022-12-13 18:52:50,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand