./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fk2012.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/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_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fk2012.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/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_d93c2b3d-877e-4961-9131-f51cf9b95470/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 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 --- 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 22:08:34,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:08:34,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:08:34,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:08:34,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:08:34,416 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:08:34,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:08:34,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:08:34,419 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:08:34,420 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:08:34,421 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:08:34,422 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:08:34,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:08:34,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:08:34,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:08:34,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:08:34,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:08:34,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:08:34,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:08:34,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:08:34,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:08:34,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:08:34,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:08:34,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:08:34,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:08:34,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:08:34,438 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:08:34,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:08:34,439 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:08:34,440 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:08:34,440 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:08:34,441 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:08:34,442 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:08:34,442 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:08:34,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:08:34,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:08:34,444 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:08:34,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:08:34,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:08:34,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:08:34,446 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:08:34,447 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 22:08:34,466 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:08:34,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:08:34,466 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:08:34,466 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:08:34,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:08:34,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:08:34,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:08:34,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:08:34,468 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:08:34,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:08:34,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 22:08:34,469 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:08:34,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:08:34,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 22:08:34,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:08:34,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:08:34,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:08:34,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:08:34,470 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 22:08:34,470 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 22:08:34,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:08:34,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:08:34,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:08:34,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:08:34,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:08:34,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:08:34,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:08:34,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:08:34,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:08:34,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:08:34,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:08:34,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:08:34,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:08:34,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:08:34,473 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:08:34,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:08:34,473 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:08:34,473 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_d93c2b3d-877e-4961-9131-f51cf9b95470/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25a65bfeb78eff83ae0d8a23f733f9dc95190d8c8aa20c7c495d09a2bd7eb6f0 [2022-12-13 22:08:34,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:08:34,683 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:08:34,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:08:34,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:08:34,687 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:08:34,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-lit/fk2012.i [2022-12-13 22:08:37,228 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:08:37,454 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:08:37,455 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/sv-benchmarks/c/pthread-lit/fk2012.i [2022-12-13 22:08:37,474 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/data/fd939d5c2/78f48345f890467fa39c7783db3b7b04/FLAG9df7fdaf4 [2022-12-13 22:08:37,487 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/data/fd939d5c2/78f48345f890467fa39c7783db3b7b04 [2022-12-13 22:08:37,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:08:37,492 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:08:37,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:08:37,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:08:37,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:08:37,498 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:37,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9642dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37, skipping insertion in model container [2022-12-13 22:08:37,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:37,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:08:37,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:08:37,683 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_d93c2b3d-877e-4961-9131-f51cf9b95470/sv-benchmarks/c/pthread-lit/fk2012.i[800,813] [2022-12-13 22:08:37,872 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:08:37,877 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:08:37,878 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:08:37,879 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:08:37,880 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:08:37,881 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:08:37,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:08:37,882 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:08:37,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:08:37,900 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:08:37,908 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_d93c2b3d-877e-4961-9131-f51cf9b95470/sv-benchmarks/c/pthread-lit/fk2012.i[800,813] [2022-12-13 22:08:37,922 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:08:37,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:08:37,923 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:08:37,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:08:37,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:08:37,924 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:08:37,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 22:08:37,925 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 22:08:37,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:08:37,961 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:08:37,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37 WrapperNode [2022-12-13 22:08:37,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:08:37,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:08:37,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:08:37,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:08:37,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:37,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:37,996 INFO L138 Inliner]: procedures = 277, calls = 35, calls flagged for inlining = 16, calls inlined = 21, statements flattened = 254 [2022-12-13 22:08:37,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:08:37,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:08:37,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:08:37,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:08:38,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,009 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,010 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:08:38,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:08:38,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:08:38,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:08:38,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (1/1) ... [2022-12-13 22:08:38,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:08:38,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:08:38,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:08:38,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d93c2b3d-877e-4961-9131-f51cf9b95470/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:08:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 22:08:38,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 22:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure producer [2022-12-13 22:08:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure producer [2022-12-13 22:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure consumer [2022-12-13 22:08:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer [2022-12-13 22:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:08:38,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:08:38,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:08:38,092 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 22:08:38,195 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:08:38,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:08:38,488 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:08:38,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:08:38,568 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 22:08:38,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:08:38 BoogieIcfgContainer [2022-12-13 22:08:38,570 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:08:38,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:08:38,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:08:38,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:08:38,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:08:37" (1/3) ... [2022-12-13 22:08:38,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4114c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:08:38, skipping insertion in model container [2022-12-13 22:08:38,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:08:37" (2/3) ... [2022-12-13 22:08:38,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4114c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:08:38, skipping insertion in model container [2022-12-13 22:08:38,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:08:38" (3/3) ... [2022-12-13 22:08:38,576 INFO L112 eAbstractionObserver]: Analyzing ICFG fk2012.i [2022-12-13 22:08:38,582 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 22:08:38,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:08:38,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-12-13 22:08:38,590 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 22:08:38,634 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 22:08:38,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 201 transitions, 412 flow [2022-12-13 22:08:38,755 INFO L130 PetriNetUnfolder]: 19/407 cut-off events. [2022-12-13 22:08:38,755 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:08:38,766 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 407 events. 19/407 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1730 event pairs, 1 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 187. Up to 8 conditions per place. [2022-12-13 22:08:38,767 INFO L82 GeneralOperation]: Start removeDead. Operand has 198 places, 201 transitions, 412 flow [2022-12-13 22:08:38,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 198 places, 201 transitions, 412 flow [2022-12-13 22:08:38,776 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:08:38,784 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 198 places, 201 transitions, 412 flow [2022-12-13 22:08:38,787 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 198 places, 201 transitions, 412 flow [2022-12-13 22:08:38,788 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 198 places, 201 transitions, 412 flow [2022-12-13 22:08:38,864 INFO L130 PetriNetUnfolder]: 19/407 cut-off events. [2022-12-13 22:08:38,864 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:08:38,867 INFO L83 FinitePrefix]: Finished finitePrefix Result has 422 conditions, 407 events. 19/407 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1730 event pairs, 1 based on Foata normal form. 0/320 useless extension candidates. Maximal degree in co-relation 187. Up to 8 conditions per place. [2022-12-13 22:08:38,879 INFO L119 LiptonReduction]: Number of co-enabled transitions 16396 [2022-12-13 22:08:40,893 INFO L134 LiptonReduction]: Checked pairs total: 46789 [2022-12-13 22:08:40,893 INFO L136 LiptonReduction]: Total number of compositions: 174 [2022-12-13 22:08:40,905 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:08:40,909 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;@48f46878, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:08:40,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2022-12-13 22:08:40,910 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 22:08:40,911 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:08:40,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:08:40,911 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 22:08:40,912 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-12-13 22:08:40,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:08:40,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1107, now seen corresponding path program 1 times [2022-12-13 22:08:40,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:08:40,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142715296] [2022-12-13 22:08:40,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:08:40,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:08:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:08:41,023 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 22:08:41,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:08:41,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142715296] [2022-12-13 22:08:41,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142715296] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:08:41,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:08:41,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 22:08:41,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558836018] [2022-12-13 22:08:41,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:08:41,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:08:41,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:08:41,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:08:41,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:08:41,057 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 375 [2022-12-13 22:08:41,060 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 86 transitions, 182 flow. Second operand has 2 states, 2 states have (on average 165.5) internal successors, (331), 2 states have internal predecessors, (331), 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 22:08:41,060 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:08:41,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 375 [2022-12-13 22:08:41,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:08:41,301 INFO L130 PetriNetUnfolder]: 1313/2981 cut-off events. [2022-12-13 22:08:41,302 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 22:08:41,305 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5102 conditions, 2981 events. 1313/2981 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 22018 event pairs, 1136 based on Foata normal form. 54/2529 useless extension candidates. Maximal degree in co-relation 3888. Up to 2056 conditions per place. [2022-12-13 22:08:41,314 INFO L137 encePairwiseOnDemand]: 351/375 looper letters, 30 selfloop transitions, 0 changer transitions 0/62 dead transitions. [2022-12-13 22:08:41,315 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 62 transitions, 194 flow [2022-12-13 22:08:41,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:08:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 22:08:41,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 384 transitions. [2022-12-13 22:08:41,325 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.512 [2022-12-13 22:08:41,326 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 384 transitions. [2022-12-13 22:08:41,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 384 transitions. [2022-12-13 22:08:41,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:08:41,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 384 transitions. [2022-12-13 22:08:41,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 192.0) internal successors, (384), 2 states have internal predecessors, (384), 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 22:08:41,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 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 22:08:41,339 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 375.0) internal successors, (1125), 3 states have internal predecessors, (1125), 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 22:08:41,340 INFO L175 Difference]: Start difference. First operand has 86 places, 86 transitions, 182 flow. Second operand 2 states and 384 transitions. [2022-12-13 22:08:41,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 62 transitions, 194 flow [2022-12-13 22:08:41,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 62 transitions, 194 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 22:08:41,345 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 134 flow [2022-12-13 22:08:41,346 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=375, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=134, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2022-12-13 22:08:41,349 INFO L288 CegarLoopForPetriNet]: 86 programPoint places, -21 predicate places. [2022-12-13 22:08:41,349 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 134 flow [2022-12-13 22:08:41,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 165.5) internal successors, (331), 2 states have internal predecessors, (331), 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 22:08:41,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:08:41,350 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 22:08:41,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:08:41,350 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2022-12-13 22:08:41,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:08:41,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1687295000, now seen corresponding path program 1 times [2022-12-13 22:08:41,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:08:41,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816926111] [2022-12-13 22:08:41,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:08:41,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:08:41,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:08:41,383 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:08:41,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:08:41,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:08:41,416 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:08:41,418 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 63 remaining) [2022-12-13 22:08:41,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONDATA_RACE (61 of 63 remaining) [2022-12-13 22:08:41,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONDATA_RACE (60 of 63 remaining) [2022-12-13 22:08:41,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONDATA_RACE (59 of 63 remaining) [2022-12-13 22:08:41,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONDATA_RACE (58 of 63 remaining) [2022-12-13 22:08:41,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONDATA_RACE (57 of 63 remaining) [2022-12-13 22:08:41,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONDATA_RACE (56 of 63 remaining) [2022-12-13 22:08:41,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr11ASSERT_VIOLATIONDATA_RACE (55 of 63 remaining) [2022-12-13 22:08:41,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr12ASSERT_VIOLATIONDATA_RACE (54 of 63 remaining) [2022-12-13 22:08:41,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr6ASSERT_VIOLATIONDATA_RACE (53 of 63 remaining) [2022-12-13 22:08:41,421 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr13ASSERT_VIOLATIONDATA_RACE (52 of 63 remaining) [2022-12-13 22:08:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr7ASSERT_VIOLATIONDATA_RACE (51 of 63 remaining) [2022-12-13 22:08:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr8ASSERT_VIOLATIONDATA_RACE (50 of 63 remaining) [2022-12-13 22:08:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr14ASSERT_VIOLATIONDATA_RACE (49 of 63 remaining) [2022-12-13 22:08:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr16ASSERT_VIOLATIONDATA_RACE (48 of 63 remaining) [2022-12-13 22:08:41,422 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr9ASSERT_VIOLATIONDATA_RACE (47 of 63 remaining) [2022-12-13 22:08:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr10ASSERT_VIOLATIONDATA_RACE (46 of 63 remaining) [2022-12-13 22:08:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr17ASSERT_VIOLATIONDATA_RACE (45 of 63 remaining) [2022-12-13 22:08:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr18ASSERT_VIOLATIONDATA_RACE (44 of 63 remaining) [2022-12-13 22:08:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr15ASSERT_VIOLATIONDATA_RACE (43 of 63 remaining) [2022-12-13 22:08:41,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (42 of 63 remaining) [2022-12-13 22:08:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (41 of 63 remaining) [2022-12-13 22:08:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (40 of 63 remaining) [2022-12-13 22:08:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 63 remaining) [2022-12-13 22:08:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr5ASSERT_VIOLATIONDATA_RACE (38 of 63 remaining) [2022-12-13 22:08:41,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONDATA_RACE (37 of 63 remaining) [2022-12-13 22:08:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONDATA_RACE (36 of 63 remaining) [2022-12-13 22:08:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr2ASSERT_VIOLATIONDATA_RACE (35 of 63 remaining) [2022-12-13 22:08:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr6ASSERT_VIOLATIONDATA_RACE (34 of 63 remaining) [2022-12-13 22:08:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr3ASSERT_VIOLATIONDATA_RACE (33 of 63 remaining) [2022-12-13 22:08:41,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr4ASSERT_VIOLATIONDATA_RACE (32 of 63 remaining) [2022-12-13 22:08:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr7ASSERT_VIOLATIONDATA_RACE (31 of 63 remaining) [2022-12-13 22:08:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr8ASSERT_VIOLATIONDATA_RACE (30 of 63 remaining) [2022-12-13 22:08:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr9ASSERT_VIOLATIONDATA_RACE (29 of 63 remaining) [2022-12-13 22:08:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr0ASSERT_VIOLATIONDATA_RACE (28 of 63 remaining) [2022-12-13 22:08:41,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr1ASSERT_VIOLATIONDATA_RACE (27 of 63 remaining) [2022-12-13 22:08:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr2ASSERT_VIOLATIONDATA_RACE (26 of 63 remaining) [2022-12-13 22:08:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr3ASSERT_VIOLATIONDATA_RACE (25 of 63 remaining) [2022-12-13 22:08:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr4ASSERT_VIOLATIONDATA_RACE (24 of 63 remaining) [2022-12-13 22:08:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr5ASSERT_VIOLATIONDATA_RACE (23 of 63 remaining) [2022-12-13 22:08:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr11ASSERT_VIOLATIONDATA_RACE (22 of 63 remaining) [2022-12-13 22:08:41,427 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr12ASSERT_VIOLATIONDATA_RACE (21 of 63 remaining) [2022-12-13 22:08:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr6ASSERT_VIOLATIONDATA_RACE (20 of 63 remaining) [2022-12-13 22:08:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr13ASSERT_VIOLATIONDATA_RACE (19 of 63 remaining) [2022-12-13 22:08:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr7ASSERT_VIOLATIONDATA_RACE (18 of 63 remaining) [2022-12-13 22:08:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr8ASSERT_VIOLATIONDATA_RACE (17 of 63 remaining) [2022-12-13 22:08:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr14ASSERT_VIOLATIONDATA_RACE (16 of 63 remaining) [2022-12-13 22:08:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr16ASSERT_VIOLATIONDATA_RACE (15 of 63 remaining) [2022-12-13 22:08:41,428 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr9ASSERT_VIOLATIONDATA_RACE (14 of 63 remaining) [2022-12-13 22:08:41,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr10ASSERT_VIOLATIONDATA_RACE (13 of 63 remaining) [2022-12-13 22:08:41,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr17ASSERT_VIOLATIONDATA_RACE (12 of 63 remaining) [2022-12-13 22:08:41,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr18ASSERT_VIOLATIONDATA_RACE (11 of 63 remaining) [2022-12-13 22:08:41,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producerErr15ASSERT_VIOLATIONDATA_RACE (10 of 63 remaining) [2022-12-13 22:08:41,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr5ASSERT_VIOLATIONDATA_RACE (9 of 63 remaining) [2022-12-13 22:08:41,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr0ASSERT_VIOLATIONDATA_RACE (8 of 63 remaining) [2022-12-13 22:08:41,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr1ASSERT_VIOLATIONDATA_RACE (7 of 63 remaining) [2022-12-13 22:08:41,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr2ASSERT_VIOLATIONDATA_RACE (6 of 63 remaining) [2022-12-13 22:08:41,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr6ASSERT_VIOLATIONDATA_RACE (5 of 63 remaining) [2022-12-13 22:08:41,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr3ASSERT_VIOLATIONDATA_RACE (4 of 63 remaining) [2022-12-13 22:08:41,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr4ASSERT_VIOLATIONDATA_RACE (3 of 63 remaining) [2022-12-13 22:08:41,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr7ASSERT_VIOLATIONDATA_RACE (2 of 63 remaining) [2022-12-13 22:08:41,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr8ASSERT_VIOLATIONDATA_RACE (1 of 63 remaining) [2022-12-13 22:08:41,431 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumerErr9ASSERT_VIOLATIONDATA_RACE (0 of 63 remaining) [2022-12-13 22:08:41,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:08:41,432 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 22:08:41,435 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 22:08:41,435 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 22:08:41,475 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 22:08:41,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 335 places, 341 transitions, 706 flow [2022-12-13 22:08:41,633 INFO L130 PetriNetUnfolder]: 55/1085 cut-off events. [2022-12-13 22:08:41,633 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-13 22:08:41,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 1085 events. 55/1085 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7229 event pairs, 4 based on Foata normal form. 0/839 useless extension candidates. Maximal degree in co-relation 698. Up to 18 conditions per place. [2022-12-13 22:08:41,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 335 places, 341 transitions, 706 flow [2022-12-13 22:08:41,655 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 335 places, 341 transitions, 706 flow [2022-12-13 22:08:41,655 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 22:08:41,655 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 335 places, 341 transitions, 706 flow [2022-12-13 22:08:41,655 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 335 places, 341 transitions, 706 flow [2022-12-13 22:08:41,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 335 places, 341 transitions, 706 flow [2022-12-13 22:08:41,843 INFO L130 PetriNetUnfolder]: 55/1085 cut-off events. [2022-12-13 22:08:41,843 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2022-12-13 22:08:41,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 1085 events. 55/1085 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7229 event pairs, 4 based on Foata normal form. 0/839 useless extension candidates. Maximal degree in co-relation 698. Up to 18 conditions per place. [2022-12-13 22:08:41,944 INFO L119 LiptonReduction]: Number of co-enabled transitions 71708 [2022-12-13 22:08:44,313 INFO L134 LiptonReduction]: Checked pairs total: 280987 [2022-12-13 22:08:44,313 INFO L136 LiptonReduction]: Total number of compositions: 265 [2022-12-13 22:08:44,315 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:08:44,316 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;@48f46878, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:08:44,316 INFO L358 AbstractCegarLoop]: Starting to check reachability of 92 error locations. [2022-12-13 22:08:44,317 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 22:08:44,317 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 22:08:44,317 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:08:44,317 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 22:08:44,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 88 more)] === [2022-12-13 22:08:44,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:08:44,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1847, now seen corresponding path program 1 times [2022-12-13 22:08:44,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:08:44,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191317774] [2022-12-13 22:08:44,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:08:44,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:08:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:08:44,332 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 22:08:44,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:08:44,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191317774] [2022-12-13 22:08:44,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191317774] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:08:44,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:08:44,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 22:08:44,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717583575] [2022-12-13 22:08:44,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:08:44,334 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:08:44,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:08:44,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:08:44,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:08:44,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 271 out of 606 [2022-12-13 22:08:44,337 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 168 places, 167 transitions, 358 flow. Second operand has 2 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 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 22:08:44,337 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:08:44,337 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 271 of 606 [2022-12-13 22:08:44,337 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 22:09:31,207 INFO L130 PetriNetUnfolder]: 480653/689378 cut-off events. [2022-12-13 22:09:31,207 INFO L131 PetriNetUnfolder]: For 14834/14834 co-relation queries the response was YES. [2022-12-13 22:09:32,902 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1321151 conditions, 689378 events. 480653/689378 cut-off events. For 14834/14834 co-relation queries the response was YES. Maximal size of possible extension queue 21254. Compared 6475713 event pairs, 423140 based on Foata normal form. 18032/625451 useless extension candidates. Maximal degree in co-relation 521792. Up to 616343 conditions per place. [2022-12-13 22:09:35,804 INFO L137 encePairwiseOnDemand]: 564/606 looper letters, 60 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2022-12-13 22:09:35,805 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 125 transitions, 394 flow [2022-12-13 22:09:35,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:09:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 22:09:35,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 644 transitions. [2022-12-13 22:09:35,809 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5313531353135313 [2022-12-13 22:09:35,809 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 644 transitions. [2022-12-13 22:09:35,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 644 transitions. [2022-12-13 22:09:35,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 22:09:35,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 644 transitions. [2022-12-13 22:09:35,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 322.0) internal successors, (644), 2 states have internal predecessors, (644), 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 22:09:35,817 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 606.0) internal successors, (1818), 3 states have internal predecessors, (1818), 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 22:09:35,818 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 606.0) internal successors, (1818), 3 states have internal predecessors, (1818), 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 22:09:35,818 INFO L175 Difference]: Start difference. First operand has 168 places, 167 transitions, 358 flow. Second operand 2 states and 644 transitions. [2022-12-13 22:09:35,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 125 transitions, 394 flow [2022-12-13 22:09:35,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 125 transitions, 390 flow, removed 2 selfloop flow, removed 0 redundant places. [2022-12-13 22:09:35,835 INFO L231 Difference]: Finished difference. Result has 129 places, 125 transitions, 270 flow [2022-12-13 22:09:35,835 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=606, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=270, PETRI_PLACES=129, PETRI_TRANSITIONS=125} [2022-12-13 22:09:35,836 INFO L288 CegarLoopForPetriNet]: 168 programPoint places, -39 predicate places. [2022-12-13 22:09:35,836 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 125 transitions, 270 flow [2022-12-13 22:09:35,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 271.5) internal successors, (543), 2 states have internal predecessors, (543), 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 22:09:35,836 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 22:09:35,836 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:09:35,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 22:09:35,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting producerErr4ASSERT_VIOLATIONDATA_RACE === [producerErr0ASSERT_VIOLATIONDATA_RACE, producerErr1ASSERT_VIOLATIONDATA_RACE, producerErr2ASSERT_VIOLATIONDATA_RACE, producerErr3ASSERT_VIOLATIONDATA_RACE (and 88 more)] === [2022-12-13 22:09:35,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:09:35,837 INFO L85 PathProgramCache]: Analyzing trace with hash -947362991, now seen corresponding path program 1 times [2022-12-13 22:09:35,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:09:35,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100648241] [2022-12-13 22:09:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:09:35,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:09:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:09:35,910 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 22:09:35,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:09:35,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100648241] [2022-12-13 22:09:35,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2100648241] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:09:35,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:09:35,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 22:09:35,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172433310] [2022-12-13 22:09:35,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:09:35,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 22:09:35,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:09:35,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 22:09:35,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 22:09:35,976 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 606 [2022-12-13 22:09:35,978 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 125 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 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 22:09:35,978 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 22:09:35,978 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 606 [2022-12-13 22:09:35,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand