./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/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_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/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_c80234b0-5334-480a-b6f8-d61fd8d46303/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 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f --- 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 13:40:16,218 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:40:16,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:40:16,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:40:16,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:40:16,232 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:40:16,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:40:16,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:40:16,235 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:40:16,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:40:16,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:40:16,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:40:16,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:40:16,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:40:16,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:40:16,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:40:16,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:40:16,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:40:16,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:40:16,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:40:16,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:40:16,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:40:16,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:40:16,245 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:40:16,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:40:16,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:40:16,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:40:16,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:40:16,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:40:16,249 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:40:16,249 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:40:16,250 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:40:16,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:40:16,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:40:16,251 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:40:16,252 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:40:16,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:40:16,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:40:16,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:40:16,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:40:16,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:40:16,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 13:40:16,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:40:16,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:40:16,268 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:40:16,268 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:40:16,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:40:16,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:40:16,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:40:16,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:40:16,269 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:40:16,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:40:16,269 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:40:16,269 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:40:16,269 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:40:16,269 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:40:16,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:40:16,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:40:16,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:40:16,270 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:40:16,270 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 13:40:16,270 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:40:16,270 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:40:16,270 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:40:16,271 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:40:16,271 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:40:16,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:40:16,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:40:16,271 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:40:16,271 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:40:16,271 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:40:16,271 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:40:16,272 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:40:16,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:40:16,272 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:40:16,272 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:40:16,272 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:40:16,272 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:40:16,272 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:40:16,272 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_c80234b0-5334-480a-b6f8-d61fd8d46303/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 658086e6a2b970f68ba6fa20919311f7cc4c75e1705e5ad288c4fd1e6439159f [2022-12-13 13:40:16,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:40:16,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:40:16,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:40:16,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:40:16,464 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:40:16,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2022-12-13 13:40:19,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:40:19,315 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:40:19,315 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i [2022-12-13 13:40:19,324 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/data/75c6b2458/39be62917d604b4aa2c2fd0147a5953a/FLAGf298b3e66 [2022-12-13 13:40:19,335 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/data/75c6b2458/39be62917d604b4aa2c2fd0147a5953a [2022-12-13 13:40:19,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:40:19,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:40:19,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:40:19,339 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:40:19,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:40:19,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e86ca82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19, skipping insertion in model container [2022-12-13 13:40:19,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:40:19,375 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:40:19,472 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:40:19,586 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[30448,30461] [2022-12-13 13:40:19,596 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[30811,30824] [2022-12-13 13:40:19,606 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31483,31496] [2022-12-13 13:40:19,606 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31534,31547] [2022-12-13 13:40:19,608 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31683,31696] [2022-12-13 13:40:19,608 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31760,31773] [2022-12-13 13:40:19,609 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31807,31820] [2022-12-13 13:40:19,610 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31916,31929] [2022-12-13 13:40:19,612 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32035,32048] [2022-12-13 13:40:19,612 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32083,32096] [2022-12-13 13:40:19,613 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32160,32173] [2022-12-13 13:40:19,614 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32286,32299] [2022-12-13 13:40:19,620 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32869,32882] [2022-12-13 13:40:19,621 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32946,32959] [2022-12-13 13:40:19,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:40:19,630 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:40:19,639 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:40:19,651 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[30448,30461] [2022-12-13 13:40:19,654 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[30811,30824] [2022-12-13 13:40:19,659 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31483,31496] [2022-12-13 13:40:19,660 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31534,31547] [2022-12-13 13:40:19,662 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31683,31696] [2022-12-13 13:40:19,662 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31760,31773] [2022-12-13 13:40:19,663 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31807,31820] [2022-12-13 13:40:19,664 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[31916,31929] [2022-12-13 13:40:19,666 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32035,32048] [2022-12-13 13:40:19,666 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32083,32096] [2022-12-13 13:40:19,667 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32160,32173] [2022-12-13 13:40:19,668 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32286,32299] [2022-12-13 13:40:19,673 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32869,32882] [2022-12-13 13:40:19,674 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_c80234b0-5334-480a-b6f8-d61fd8d46303/sv-benchmarks/c/pthread-divine/one_time_barrier_3t.i[32946,32959] [2022-12-13 13:40:19,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:40:19,696 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:40:19,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19 WrapperNode [2022-12-13 13:40:19,696 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:40:19,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:40:19,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:40:19,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:40:19,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,761 INFO L138 Inliner]: procedures = 174, calls = 75, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 786 [2022-12-13 13:40:19,761 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:40:19,762 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:40:19,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:40:19,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:40:19,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,826 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:40:19,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:40:19,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:40:19,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:40:19,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (1/1) ... [2022-12-13 13:40:19,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:40:19,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:40:19,860 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:40:19,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:40:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:40:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:40:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 13:40:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2022-12-13 13:40:19,895 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2022-12-13 13:40:19,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:40:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 13:40:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:40:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-13 13:40:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:40:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:40:19,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:40:19,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:40:19,898 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 13:40:20,029 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:40:20,030 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:40:20,896 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:40:20,907 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:40:20,907 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-12-13 13:40:20,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:40:20 BoogieIcfgContainer [2022-12-13 13:40:20,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:40:20,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:40:20,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:40:20,914 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:40:20,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:40:19" (1/3) ... [2022-12-13 13:40:20,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37672ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:40:20, skipping insertion in model container [2022-12-13 13:40:20,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:40:19" (2/3) ... [2022-12-13 13:40:20,915 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37672ef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:40:20, skipping insertion in model container [2022-12-13 13:40:20,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:40:20" (3/3) ... [2022-12-13 13:40:20,917 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_3t.i [2022-12-13 13:40:20,923 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:40:20,931 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:40:20,932 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2022-12-13 13:40:20,932 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:40:21,031 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 13:40:21,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 844 places, 903 transitions, 1814 flow [2022-12-13 13:40:21,564 INFO L130 PetriNetUnfolder]: 94/1325 cut-off events. [2022-12-13 13:40:21,564 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:40:21,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1325 events. 94/1325 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4483 event pairs, 0 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 792. Up to 4 conditions per place. [2022-12-13 13:40:21,593 INFO L82 GeneralOperation]: Start removeDead. Operand has 844 places, 903 transitions, 1814 flow [2022-12-13 13:40:21,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 844 places, 903 transitions, 1814 flow [2022-12-13 13:40:21,614 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:40:21,625 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 844 places, 903 transitions, 1814 flow [2022-12-13 13:40:21,627 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 844 places, 903 transitions, 1814 flow [2022-12-13 13:40:21,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 844 places, 903 transitions, 1814 flow [2022-12-13 13:40:21,920 INFO L130 PetriNetUnfolder]: 94/1325 cut-off events. [2022-12-13 13:40:21,920 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 13:40:21,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1331 conditions, 1325 events. 94/1325 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 4483 event pairs, 0 based on Foata normal form. 0/1115 useless extension candidates. Maximal degree in co-relation 792. Up to 4 conditions per place. [2022-12-13 13:40:21,996 INFO L119 LiptonReduction]: Number of co-enabled transitions 312440 [2022-12-13 13:40:54,258 WARN L233 SmtUtils]: Spent 7.89s on a formula simplification. DAG size of input: 120 DAG size of output: 118 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:41:05,646 WARN L233 SmtUtils]: Spent 9.19s on a formula simplification. DAG size of input: 129 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:41:07,771 INFO L134 LiptonReduction]: Checked pairs total: 1824143 [2022-12-13 13:41:07,771 INFO L136 LiptonReduction]: Total number of compositions: 556 [2022-12-13 13:41:07,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:41:07,785 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;@39f52e8d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:41:07,785 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2022-12-13 13:41:07,787 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 13:41:07,787 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:41:07,787 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:07,788 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 13:41:07,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-12-13 13:41:07,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:07,791 INFO L85 PathProgramCache]: Analyzing trace with hash 96777, now seen corresponding path program 1 times [2022-12-13 13:41:07,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:07,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101027137] [2022-12-13 13:41:07,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:07,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:07,916 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 13:41:07,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:07,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101027137] [2022-12-13 13:41:07,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101027137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:07,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:41:07,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:41:07,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267272453] [2022-12-13 13:41:07,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:07,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:41:07,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:07,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:41:07,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:41:07,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 858 out of 1459 [2022-12-13 13:41:07,948 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 450 places, 486 transitions, 980 flow. Second operand has 2 states, 2 states have (on average 859.0) internal successors, (1718), 2 states have internal predecessors, (1718), 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 13:41:07,948 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:07,948 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 858 of 1459 [2022-12-13 13:41:07,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:10,942 INFO L130 PetriNetUnfolder]: 6036/20688 cut-off events. [2022-12-13 13:41:10,943 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-12-13 13:41:10,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31772 conditions, 20688 events. 6036/20688 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 250. Compared 201150 event pairs, 4828 based on Foata normal form. 1207/19387 useless extension candidates. Maximal degree in co-relation 31442. Up to 11078 conditions per place. [2022-12-13 13:41:11,013 INFO L137 encePairwiseOnDemand]: 1434/1459 looper letters, 162 selfloop transitions, 0 changer transitions 0/455 dead transitions. [2022-12-13 13:41:11,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 455 transitions, 1242 flow [2022-12-13 13:41:11,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:41:11,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:41:11,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1903 transitions. [2022-12-13 13:41:11,033 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6521590130226183 [2022-12-13 13:41:11,034 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1903 transitions. [2022-12-13 13:41:11,035 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1903 transitions. [2022-12-13 13:41:11,038 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:11,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1903 transitions. [2022-12-13 13:41:11,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 951.5) internal successors, (1903), 2 states have internal predecessors, (1903), 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 13:41:11,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 1459.0) internal successors, (4377), 3 states have internal predecessors, (4377), 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 13:41:11,058 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 1459.0) internal successors, (4377), 3 states have internal predecessors, (4377), 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 13:41:11,059 INFO L175 Difference]: Start difference. First operand has 450 places, 486 transitions, 980 flow. Second operand 2 states and 1903 transitions. [2022-12-13 13:41:11,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 455 transitions, 1242 flow [2022-12-13 13:41:11,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 455 transitions, 1242 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:41:11,071 INFO L231 Difference]: Finished difference. Result has 440 places, 455 transitions, 918 flow [2022-12-13 13:41:11,073 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1459, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=439, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=455, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=918, PETRI_PLACES=440, PETRI_TRANSITIONS=455} [2022-12-13 13:41:11,076 INFO L288 CegarLoopForPetriNet]: 450 programPoint places, -10 predicate places. [2022-12-13 13:41:11,076 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 455 transitions, 918 flow [2022-12-13 13:41:11,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 859.0) internal successors, (1718), 2 states have internal predecessors, (1718), 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 13:41:11,077 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:11,077 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2022-12-13 13:41:11,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:41:11,078 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-12-13 13:41:11,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:11,078 INFO L85 PathProgramCache]: Analyzing trace with hash 579003194, now seen corresponding path program 1 times [2022-12-13 13:41:11,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:11,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352774213] [2022-12-13 13:41:11,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:11,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:11,184 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 13:41:11,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:11,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352774213] [2022-12-13 13:41:11,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352774213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:41:11,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:41:11,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:41:11,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911339359] [2022-12-13 13:41:11,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:41:11,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:41:11,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:11,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:41:11,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:41:11,228 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 854 out of 1459 [2022-12-13 13:41:11,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 455 transitions, 918 flow. Second operand has 3 states, 3 states have (on average 855.6666666666666) internal successors, (2567), 3 states have internal predecessors, (2567), 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 13:41:11,231 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:11,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 854 of 1459 [2022-12-13 13:41:11,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:14,218 INFO L130 PetriNetUnfolder]: 6036/20689 cut-off events. [2022-12-13 13:41:14,218 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-12-13 13:41:14,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31775 conditions, 20689 events. 6036/20689 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 201148 event pairs, 4828 based on Foata normal form. 0/18181 useless extension candidates. Maximal degree in co-relation 31771. Up to 11078 conditions per place. [2022-12-13 13:41:14,279 INFO L137 encePairwiseOnDemand]: 1456/1459 looper letters, 161 selfloop transitions, 2 changer transitions 0/456 dead transitions. [2022-12-13 13:41:14,279 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 442 places, 456 transitions, 1246 flow [2022-12-13 13:41:14,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:41:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:41:14,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2726 transitions. [2022-12-13 13:41:14,285 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6228010052547407 [2022-12-13 13:41:14,286 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2726 transitions. [2022-12-13 13:41:14,286 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2726 transitions. [2022-12-13 13:41:14,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:14,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2726 transitions. [2022-12-13 13:41:14,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 908.6666666666666) internal successors, (2726), 3 states have internal predecessors, (2726), 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 13:41:14,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1459.0) internal successors, (5836), 4 states have internal predecessors, (5836), 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 13:41:14,304 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1459.0) internal successors, (5836), 4 states have internal predecessors, (5836), 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 13:41:14,305 INFO L175 Difference]: Start difference. First operand has 440 places, 455 transitions, 918 flow. Second operand 3 states and 2726 transitions. [2022-12-13 13:41:14,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 442 places, 456 transitions, 1246 flow [2022-12-13 13:41:14,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 456 transitions, 1246 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:41:14,314 INFO L231 Difference]: Finished difference. Result has 443 places, 456 transitions, 930 flow [2022-12-13 13:41:14,315 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1459, PETRI_DIFFERENCE_MINUEND_FLOW=918, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=455, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=930, PETRI_PLACES=443, PETRI_TRANSITIONS=456} [2022-12-13 13:41:14,315 INFO L288 CegarLoopForPetriNet]: 450 programPoint places, -7 predicate places. [2022-12-13 13:41:14,316 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 456 transitions, 930 flow [2022-12-13 13:41:14,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 855.6666666666666) internal successors, (2567), 3 states have internal predecessors, (2567), 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 13:41:14,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:14,318 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 13:41:14,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:41:14,318 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-12-13 13:41:14,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:14,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1735693669, now seen corresponding path program 1 times [2022-12-13 13:41:14,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:14,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792979915] [2022-12-13 13:41:14,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:14,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:14,432 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 13:41:14,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:41:14,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792979915] [2022-12-13 13:41:14,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792979915] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:41:14,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135763412] [2022-12-13 13:41:14,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:14,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:41:14,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:41:14,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:41:14,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:41:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:41:14,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:41:14,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:41:14,565 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 13:41:14,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:41:14,577 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 13:41:14,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135763412] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:41:14,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:41:14,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-12-13 13:41:14,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933816449] [2022-12-13 13:41:14,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:41:14,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:41:14,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:41:14,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:41:14,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:41:14,669 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 853 out of 1459 [2022-12-13 13:41:14,675 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 443 places, 456 transitions, 930 flow. Second operand has 6 states, 6 states have (on average 854.8333333333334) internal successors, (5129), 6 states have internal predecessors, (5129), 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 13:41:14,675 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:41:14,675 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 853 of 1459 [2022-12-13 13:41:14,675 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:41:17,652 INFO L130 PetriNetUnfolder]: 6036/20691 cut-off events. [2022-12-13 13:41:17,652 INFO L131 PetriNetUnfolder]: For 3/5 co-relation queries the response was YES. [2022-12-13 13:41:17,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31788 conditions, 20691 events. 6036/20691 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 251. Compared 201246 event pairs, 4828 based on Foata normal form. 0/18183 useless extension candidates. Maximal degree in co-relation 31782. Up to 11078 conditions per place. [2022-12-13 13:41:17,708 INFO L137 encePairwiseOnDemand]: 1456/1459 looper letters, 161 selfloop transitions, 4 changer transitions 0/458 dead transitions. [2022-12-13 13:41:17,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 447 places, 458 transitions, 1268 flow [2022-12-13 13:41:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:41:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 13:41:17,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4432 transitions. [2022-12-13 13:41:17,714 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6075394105551748 [2022-12-13 13:41:17,714 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 4432 transitions. [2022-12-13 13:41:17,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 4432 transitions. [2022-12-13 13:41:17,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:41:17,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 4432 transitions. [2022-12-13 13:41:17,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 886.4) internal successors, (4432), 5 states have internal predecessors, (4432), 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 13:41:17,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 1459.0) internal successors, (8754), 6 states have internal predecessors, (8754), 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 13:41:17,732 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 1459.0) internal successors, (8754), 6 states have internal predecessors, (8754), 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 13:41:17,733 INFO L175 Difference]: Start difference. First operand has 443 places, 456 transitions, 930 flow. Second operand 5 states and 4432 transitions. [2022-12-13 13:41:17,733 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 447 places, 458 transitions, 1268 flow [2022-12-13 13:41:17,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 458 transitions, 1264 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 13:41:17,739 INFO L231 Difference]: Finished difference. Result has 448 places, 458 transitions, 952 flow [2022-12-13 13:41:17,739 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1459, PETRI_DIFFERENCE_MINUEND_FLOW=926, PETRI_DIFFERENCE_MINUEND_PLACES=442, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=456, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=952, PETRI_PLACES=448, PETRI_TRANSITIONS=458} [2022-12-13 13:41:17,740 INFO L288 CegarLoopForPetriNet]: 450 programPoint places, -2 predicate places. [2022-12-13 13:41:17,740 INFO L495 AbstractCegarLoop]: Abstraction has has 448 places, 458 transitions, 952 flow [2022-12-13 13:41:17,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 854.8333333333334) internal successors, (5129), 6 states have internal predecessors, (5129), 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 13:41:17,742 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:41:17,742 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1] [2022-12-13 13:41:17,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:41:17,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c80234b0-5334-480a-b6f8-d61fd8d46303/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-13 13:41:17,943 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2022-12-13 13:41:17,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:41:17,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1878590459, now seen corresponding path program 2 times [2022-12-13 13:41:17,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:41:17,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007481109] [2022-12-13 13:41:17,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:41:17,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:41:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:41:17,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:41:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:41:18,024 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:41:18,024 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:41:18,025 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (110 of 111 remaining) [2022-12-13 13:41:18,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (109 of 111 remaining) [2022-12-13 13:41:18,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (108 of 111 remaining) [2022-12-13 13:41:18,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (107 of 111 remaining) [2022-12-13 13:41:18,026 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (106 of 111 remaining) [2022-12-13 13:41:18,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (105 of 111 remaining) [2022-12-13 13:41:18,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (104 of 111 remaining) [2022-12-13 13:41:18,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (103 of 111 remaining) [2022-12-13 13:41:18,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (102 of 111 remaining) [2022-12-13 13:41:18,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (101 of 111 remaining) [2022-12-13 13:41:18,027 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (100 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (99 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (98 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (97 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (96 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (95 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (94 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (93 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (92 of 111 remaining) [2022-12-13 13:41:18,028 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (91 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONDATA_RACE (90 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONDATA_RACE (89 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONDATA_RACE (88 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONDATA_RACE (87 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONDATA_RACE (86 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONDATA_RACE (85 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONDATA_RACE (84 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONDATA_RACE (83 of 111 remaining) [2022-12-13 13:41:18,029 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONDATA_RACE (82 of 111 remaining) [2022-12-13 13:41:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONDATA_RACE (81 of 111 remaining) [2022-12-13 13:41:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr29ASSERT_VIOLATIONDATA_RACE (80 of 111 remaining) [2022-12-13 13:41:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONDATA_RACE (79 of 111 remaining) [2022-12-13 13:41:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONDATA_RACE (78 of 111 remaining) [2022-12-13 13:41:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONDATA_RACE (77 of 111 remaining) [2022-12-13 13:41:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONDATA_RACE (76 of 111 remaining) [2022-12-13 13:41:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONDATA_RACE (75 of 111 remaining) [2022-12-13 13:41:18,030 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONDATA_RACE (74 of 111 remaining) [2022-12-13 13:41:18,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONDATA_RACE (73 of 111 remaining) [2022-12-13 13:41:18,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE (72 of 111 remaining) [2022-12-13 13:41:18,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONDATA_RACE (71 of 111 remaining) [2022-12-13 13:41:18,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr39ASSERT_VIOLATIONDATA_RACE (70 of 111 remaining) [2022-12-13 13:41:18,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr40ASSERT_VIOLATIONDATA_RACE (69 of 111 remaining) [2022-12-13 13:41:18,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr41ASSERT_VIOLATIONDATA_RACE (68 of 111 remaining) [2022-12-13 13:41:18,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (67 of 111 remaining) [2022-12-13 13:41:18,031 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (66 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (65 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (64 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (63 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (62 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (61 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (60 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (59 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (58 of 111 remaining) [2022-12-13 13:41:18,032 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (57 of 111 remaining) [2022-12-13 13:41:18,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (56 of 111 remaining) [2022-12-13 13:41:18,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (55 of 111 remaining) [2022-12-13 13:41:18,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (54 of 111 remaining) [2022-12-13 13:41:18,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (53 of 111 remaining) [2022-12-13 13:41:18,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (52 of 111 remaining) [2022-12-13 13:41:18,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (51 of 111 remaining) [2022-12-13 13:41:18,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (50 of 111 remaining) [2022-12-13 13:41:18,033 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (49 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (48 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (47 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (46 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (45 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (44 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (43 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (42 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (41 of 111 remaining) [2022-12-13 13:41:18,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (40 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (39 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (38 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (37 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (36 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (35 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (34 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr0ASSERT_VIOLATIONDATA_RACE (33 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr1ASSERT_VIOLATIONDATA_RACE (32 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr2ASSERT_VIOLATIONDATA_RACE (31 of 111 remaining) [2022-12-13 13:41:18,035 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr4ASSERT_VIOLATIONDATA_RACE (30 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr3ASSERT_VIOLATIONDATA_RACE (29 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr5ASSERT_VIOLATIONDATA_RACE (28 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr6ASSERT_VIOLATIONDATA_RACE (27 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr7ASSERT_VIOLATIONDATA_RACE (26 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr8ASSERT_VIOLATIONDATA_RACE (25 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr9ASSERT_VIOLATIONDATA_RACE (24 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr10ASSERT_VIOLATIONDATA_RACE (23 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr11ASSERT_VIOLATIONDATA_RACE (22 of 111 remaining) [2022-12-13 13:41:18,036 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr13ASSERT_VIOLATIONDATA_RACE (21 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr12ASSERT_VIOLATIONDATA_RACE (20 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr14ASSERT_VIOLATIONDATA_RACE (19 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr16ASSERT_VIOLATIONDATA_RACE (18 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr15ASSERT_VIOLATIONDATA_RACE (17 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr17ASSERT_VIOLATIONDATA_RACE (16 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr18ASSERT_VIOLATIONDATA_RACE (15 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr19ASSERT_VIOLATIONDATA_RACE (14 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr20ASSERT_VIOLATIONDATA_RACE (13 of 111 remaining) [2022-12-13 13:41:18,037 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr21ASSERT_VIOLATIONDATA_RACE (12 of 111 remaining) [2022-12-13 13:41:18,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr22ASSERT_VIOLATIONDATA_RACE (11 of 111 remaining) [2022-12-13 13:41:18,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr23ASSERT_VIOLATIONDATA_RACE (10 of 111 remaining) [2022-12-13 13:41:18,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr24ASSERT_VIOLATIONDATA_RACE (9 of 111 remaining) [2022-12-13 13:41:18,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr25ASSERT_VIOLATIONDATA_RACE (8 of 111 remaining) [2022-12-13 13:41:18,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr27ASSERT_VIOLATIONDATA_RACE (7 of 111 remaining) [2022-12-13 13:41:18,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr26ASSERT_VIOLATIONDATA_RACE (6 of 111 remaining) [2022-12-13 13:41:18,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr28ASSERT_VIOLATIONDATA_RACE (5 of 111 remaining) [2022-12-13 13:41:18,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr29ASSERT_VIOLATIONDATA_RACE (4 of 111 remaining) [2022-12-13 13:41:18,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr30ASSERT_VIOLATIONDATA_RACE (3 of 111 remaining) [2022-12-13 13:41:18,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr33ASSERT_VIOLATIONDATA_RACE (2 of 111 remaining) [2022-12-13 13:41:18,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr31ASSERT_VIOLATIONDATA_RACE (1 of 111 remaining) [2022-12-13 13:41:18,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location worker_fnErr32ASSERT_VIOLATIONDATA_RACE (0 of 111 remaining) [2022-12-13 13:41:18,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:41:18,039 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2022-12-13 13:41:18,041 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 13:41:18,041 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 13:41:18,125 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 13:41:18,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1186 places, 1270 transitions, 2558 flow [2022-12-13 13:41:18,997 INFO L130 PetriNetUnfolder]: 159/2173 cut-off events. [2022-12-13 13:41:18,997 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 13:41:19,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 2173 events. 159/2173 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 10172 event pairs, 0 based on Foata normal form. 0/1823 useless extension candidates. Maximal degree in co-relation 1327. Up to 8 conditions per place. [2022-12-13 13:41:19,039 INFO L82 GeneralOperation]: Start removeDead. Operand has 1186 places, 1270 transitions, 2558 flow [2022-12-13 13:41:19,074 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1186 places, 1270 transitions, 2558 flow [2022-12-13 13:41:19,074 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:41:19,074 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 1186 places, 1270 transitions, 2558 flow [2022-12-13 13:41:19,074 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 1186 places, 1270 transitions, 2558 flow [2022-12-13 13:41:19,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1186 places, 1270 transitions, 2558 flow [2022-12-13 13:41:20,115 INFO L130 PetriNetUnfolder]: 159/2173 cut-off events. [2022-12-13 13:41:20,115 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 13:41:20,179 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 2173 events. 159/2173 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 10172 event pairs, 0 based on Foata normal form. 0/1823 useless extension candidates. Maximal degree in co-relation 1327. Up to 8 conditions per place. [2022-12-13 13:41:20,552 INFO L119 LiptonReduction]: Number of co-enabled transitions 899360 [2022-12-13 13:41:57,839 WARN L233 SmtUtils]: Spent 7.39s on a formula simplification. DAG size of input: 120 DAG size of output: 118 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:42:07,883 WARN L233 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 129 DAG size of output: 125 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 13:42:16,671 INFO L134 LiptonReduction]: Checked pairs total: 5421647 [2022-12-13 13:42:16,671 INFO L136 LiptonReduction]: Total number of compositions: 745 [2022-12-13 13:42:16,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:42:16,673 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;@39f52e8d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:42:16,674 INFO L358 AbstractCegarLoop]: Starting to check reachability of 145 error locations. [2022-12-13 13:42:16,675 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 13:42:16,675 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:42:16,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:42:16,676 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 13:42:16,676 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 142 more)] === [2022-12-13 13:42:16,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:42:16,676 INFO L85 PathProgramCache]: Analyzing trace with hash 172963, now seen corresponding path program 1 times [2022-12-13 13:42:16,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:42:16,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815457507] [2022-12-13 13:42:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:42:16,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:42:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:42:16,689 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 13:42:16,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:42:16,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815457507] [2022-12-13 13:42:16,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815457507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:42:16,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:42:16,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:42:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479157775] [2022-12-13 13:42:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:42:16,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:42:16,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:42:16,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:42:16,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:42:16,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 1205 out of 2015 [2022-12-13 13:42:16,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 667 places, 722 transitions, 1462 flow. Second operand has 2 states, 2 states have (on average 1206.0) internal successors, (2412), 2 states have internal predecessors, (2412), 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 13:42:16,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:42:16,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1205 of 2015 [2022-12-13 13:42:16,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand