./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/lamport-b.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_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/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_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/lamport-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/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_3db46c77-4fe0-4833-82b8-c239070ca17d/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 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:59:55,498 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:59:55,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:59:55,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:59:55,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:59:55,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:59:55,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:59:55,515 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:59:55,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:59:55,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:59:55,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:59:55,518 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:59:55,518 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:59:55,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:59:55,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:59:55,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:59:55,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:59:55,521 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:59:55,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:59:55,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:59:55,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:59:55,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:59:55,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:59:55,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:59:55,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:59:55,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:59:55,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:59:55,530 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:59:55,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:59:55,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:59:55,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:59:55,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:59:55,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:59:55,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:59:55,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:59:55,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:59:55,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:59:55,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:59:55,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:59:55,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:59:55,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:59:55,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 18:59:55,549 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:59:55,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:59:55,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:59:55,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:59:55,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:59:55,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:59:55,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:59:55,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:59:55,550 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:59:55,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 18:59:55,551 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:59:55,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:59:55,552 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:59:55,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:59:55,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:59:55,552 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:59:55,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:59:55,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:59:55,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:59:55,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:59:55,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:59:55,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:59:55,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:59:55,553 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:59:55,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:59:55,553 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:59:55,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:59:55,553 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:59:55,553 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_3db46c77-4fe0-4833-82b8-c239070ca17d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 [2022-12-13 18:59:55,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:59:55,735 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:59:55,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:59:55,738 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:59:55,738 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:59:55,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-atomic/lamport-b.i [2022-12-13 18:59:58,416 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:59:58,622 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:59:58,623 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/sv-benchmarks/c/pthread-atomic/lamport-b.i [2022-12-13 18:59:58,632 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/data/77951149c/ee9fc1e9c3f34e2586a87d8927f24e8f/FLAG61b40852d [2022-12-13 18:59:58,642 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/data/77951149c/ee9fc1e9c3f34e2586a87d8927f24e8f [2022-12-13 18:59:58,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:59:58,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:59:58,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:59:58,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:59:58,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:59:58,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:59:58" (1/1) ... [2022-12-13 18:59:58,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@618a3a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:58, skipping insertion in model container [2022-12-13 18:59:58,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:59:58" (1/1) ... [2022-12-13 18:59:58,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:59:58,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:59:58,938 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_3db46c77-4fe0-4833-82b8-c239070ca17d/sv-benchmarks/c/pthread-atomic/lamport-b.i[30203,30216] [2022-12-13 18:59:58,941 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_3db46c77-4fe0-4833-82b8-c239070ca17d/sv-benchmarks/c/pthread-atomic/lamport-b.i[30581,30594] [2022-12-13 18:59:58,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:59:58,954 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:59:58,977 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_3db46c77-4fe0-4833-82b8-c239070ca17d/sv-benchmarks/c/pthread-atomic/lamport-b.i[30203,30216] [2022-12-13 18:59:58,980 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_3db46c77-4fe0-4833-82b8-c239070ca17d/sv-benchmarks/c/pthread-atomic/lamport-b.i[30581,30594] [2022-12-13 18:59:58,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:59:59,006 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:59:59,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59 WrapperNode [2022-12-13 18:59:59,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:59:59,007 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:59:59,007 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:59:59,007 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:59:59,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,037 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2022-12-13 18:59:59,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:59:59,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:59:59,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:59:59,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:59:59,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,052 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:59:59,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:59:59,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:59:59,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:59:59,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (1/1) ... [2022-12-13 18:59:59,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:59:59,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:59:59,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:59:59,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:59:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:59:59,110 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-12-13 18:59:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-12-13 18:59:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 18:59:59,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 18:59:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:59:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:59:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:59:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:59:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:59:59,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:59:59,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:59:59,113 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 18:59:59,213 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:59:59,215 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:59:59,499 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:59:59,507 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:59:59,507 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 18:59:59,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:59:59 BoogieIcfgContainer [2022-12-13 18:59:59,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:59:59,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:59:59,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:59:59,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:59:59,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:59:58" (1/3) ... [2022-12-13 18:59:59,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fac6a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:59:59, skipping insertion in model container [2022-12-13 18:59:59,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:59:59" (2/3) ... [2022-12-13 18:59:59,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fac6a76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:59:59, skipping insertion in model container [2022-12-13 18:59:59,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:59:59" (3/3) ... [2022-12-13 18:59:59,518 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2022-12-13 18:59:59,525 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 18:59:59,535 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:59:59,535 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2022-12-13 18:59:59,535 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:59:59,615 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 18:59:59,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 232 places, 249 transitions, 514 flow [2022-12-13 18:59:59,734 INFO L130 PetriNetUnfolder]: 24/247 cut-off events. [2022-12-13 18:59:59,734 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 18:59:59,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 247 events. 24/247 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 738 event pairs, 0 based on Foata normal form. 0/191 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2022-12-13 18:59:59,741 INFO L82 GeneralOperation]: Start removeDead. Operand has 232 places, 249 transitions, 514 flow [2022-12-13 18:59:59,746 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 237 transitions, 483 flow [2022-12-13 18:59:59,749 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:59:59,756 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 220 places, 237 transitions, 483 flow [2022-12-13 18:59:59,758 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 220 places, 237 transitions, 483 flow [2022-12-13 18:59:59,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 237 transitions, 483 flow [2022-12-13 18:59:59,792 INFO L130 PetriNetUnfolder]: 24/237 cut-off events. [2022-12-13 18:59:59,792 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 18:59:59,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245 conditions, 237 events. 24/237 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 740 event pairs, 0 based on Foata normal form. 0/181 useless extension candidates. Maximal degree in co-relation 209. Up to 5 conditions per place. [2022-12-13 18:59:59,801 INFO L119 LiptonReduction]: Number of co-enabled transitions 24320 [2022-12-13 19:00:01,633 INFO L134 LiptonReduction]: Checked pairs total: 127582 [2022-12-13 19:00:01,633 INFO L136 LiptonReduction]: Total number of compositions: 99 [2022-12-13 19:00:01,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:00:01,650 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;@403f146b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:00:01,651 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2022-12-13 19:00:01,654 INFO L130 PetriNetUnfolder]: 1/10 cut-off events. [2022-12-13 19:00:01,654 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:00:01,654 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:01,654 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 19:00:01,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:01,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:01,658 INFO L85 PathProgramCache]: Analyzing trace with hash 874861280, now seen corresponding path program 1 times [2022-12-13 19:00:01,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:01,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764276194] [2022-12-13 19:00:01,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:01,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:01,805 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 19:00:01,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:01,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764276194] [2022-12-13 19:00:01,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764276194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:01,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:01,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:00:01,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910945790] [2022-12-13 19:00:01,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:01,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:00:01,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:01,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:00:01,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:00:01,835 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 348 [2022-12-13 19:00:01,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 157 transitions, 323 flow. Second operand has 2 states, 2 states have (on average 233.0) internal successors, (466), 2 states have internal predecessors, (466), 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 19:00:01,838 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:00:01,838 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 348 [2022-12-13 19:00:01,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:00:02,215 INFO L130 PetriNetUnfolder]: 1416/4269 cut-off events. [2022-12-13 19:00:02,215 INFO L131 PetriNetUnfolder]: For 42/42 co-relation queries the response was YES. [2022-12-13 19:00:02,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6241 conditions, 4269 events. 1416/4269 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 35492 event pairs, 1080 based on Foata normal form. 269/3781 useless extension candidates. Maximal degree in co-relation 6064. Up to 1910 conditions per place. [2022-12-13 19:00:02,235 INFO L137 encePairwiseOnDemand]: 334/348 looper letters, 43 selfloop transitions, 0 changer transitions 0/141 dead transitions. [2022-12-13 19:00:02,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 141 transitions, 377 flow [2022-12-13 19:00:02,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:00:02,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:00:02,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 519 transitions. [2022-12-13 19:00:02,248 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7456896551724138 [2022-12-13 19:00:02,249 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 519 transitions. [2022-12-13 19:00:02,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 519 transitions. [2022-12-13 19:00:02,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:00:02,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 519 transitions. [2022-12-13 19:00:02,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 259.5) internal successors, (519), 2 states have internal predecessors, (519), 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 19:00:02,263 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 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 19:00:02,263 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 348.0) internal successors, (1044), 3 states have internal predecessors, (1044), 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 19:00:02,265 INFO L175 Difference]: Start difference. First operand has 140 places, 157 transitions, 323 flow. Second operand 2 states and 519 transitions. [2022-12-13 19:00:02,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 141 transitions, 377 flow [2022-12-13 19:00:02,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 141 transitions, 372 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 19:00:02,271 INFO L231 Difference]: Finished difference. Result has 134 places, 141 transitions, 286 flow [2022-12-13 19:00:02,273 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=286, PETRI_PLACES=134, PETRI_TRANSITIONS=141} [2022-12-13 19:00:02,276 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, -6 predicate places. [2022-12-13 19:00:02,276 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 141 transitions, 286 flow [2022-12-13 19:00:02,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 233.0) internal successors, (466), 2 states have internal predecessors, (466), 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 19:00:02,276 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:02,277 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 19:00:02,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:00:02,277 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:02,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:02,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1349005857, now seen corresponding path program 1 times [2022-12-13 19:00:02,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:02,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936233198] [2022-12-13 19:00:02,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:02,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:02,341 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 19:00:02,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:02,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936233198] [2022-12-13 19:00:02,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936233198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:02,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:02,343 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:00:02,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060099780] [2022-12-13 19:00:02,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:02,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:00:02,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:02,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:00:02,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:00:02,366 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 348 [2022-12-13 19:00:02,367 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 141 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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 19:00:02,367 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:00:02,367 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 348 [2022-12-13 19:00:02,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:00:02,754 INFO L130 PetriNetUnfolder]: 1847/5060 cut-off events. [2022-12-13 19:00:02,754 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 19:00:02,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7686 conditions, 5060 events. 1847/5060 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 41196 event pairs, 1281 based on Foata normal form. 0/4170 useless extension candidates. Maximal degree in co-relation 7683. Up to 2345 conditions per place. [2022-12-13 19:00:02,797 INFO L137 encePairwiseOnDemand]: 343/348 looper letters, 68 selfloop transitions, 4 changer transitions 0/165 dead transitions. [2022-12-13 19:00:02,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 165 transitions, 480 flow [2022-12-13 19:00:02,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:00:02,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:00:02,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2022-12-13 19:00:02,801 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7078544061302682 [2022-12-13 19:00:02,801 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2022-12-13 19:00:02,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2022-12-13 19:00:02,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:00:02,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2022-12-13 19:00:02,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 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 19:00:02,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:02,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:02,812 INFO L175 Difference]: Start difference. First operand has 134 places, 141 transitions, 286 flow. Second operand 3 states and 739 transitions. [2022-12-13 19:00:02,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 165 transitions, 480 flow [2022-12-13 19:00:02,814 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 165 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:00:02,817 INFO L231 Difference]: Finished difference. Result has 138 places, 144 transitions, 316 flow [2022-12-13 19:00:02,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=316, PETRI_PLACES=138, PETRI_TRANSITIONS=144} [2022-12-13 19:00:02,818 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, -2 predicate places. [2022-12-13 19:00:02,819 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 144 transitions, 316 flow [2022-12-13 19:00:02,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.0) internal successors, (672), 3 states have internal predecessors, (672), 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 19:00:02,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:02,820 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:02,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:00:02,820 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:02,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:02,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1640131406, now seen corresponding path program 1 times [2022-12-13 19:00:02,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:02,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159301071] [2022-12-13 19:00:02,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:02,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:02,869 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 19:00:02,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:02,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159301071] [2022-12-13 19:00:02,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159301071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:02,870 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:02,870 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:00:02,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899690231] [2022-12-13 19:00:02,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:02,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:00:02,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:02,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:00:02,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:00:02,900 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 348 [2022-12-13 19:00:02,901 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 144 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 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 19:00:02,901 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:00:02,901 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 348 [2022-12-13 19:00:02,901 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:00:03,329 INFO L130 PetriNetUnfolder]: 1870/5228 cut-off events. [2022-12-13 19:00:03,330 INFO L131 PetriNetUnfolder]: For 326/367 co-relation queries the response was YES. [2022-12-13 19:00:03,336 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8226 conditions, 5228 events. 1870/5228 cut-off events. For 326/367 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 43482 event pairs, 1258 based on Foata normal form. 0/4332 useless extension candidates. Maximal degree in co-relation 8221. Up to 2394 conditions per place. [2022-12-13 19:00:03,350 INFO L137 encePairwiseOnDemand]: 343/348 looper letters, 69 selfloop transitions, 4 changer transitions 0/169 dead transitions. [2022-12-13 19:00:03,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 169 transitions, 523 flow [2022-12-13 19:00:03,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:00:03,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:00:03,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 738 transitions. [2022-12-13 19:00:03,354 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7068965517241379 [2022-12-13 19:00:03,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 738 transitions. [2022-12-13 19:00:03,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 738 transitions. [2022-12-13 19:00:03,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:00:03,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 738 transitions. [2022-12-13 19:00:03,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.0) internal successors, (738), 3 states have internal predecessors, (738), 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 19:00:03,357 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:03,357 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:03,357 INFO L175 Difference]: Start difference. First operand has 138 places, 144 transitions, 316 flow. Second operand 3 states and 738 transitions. [2022-12-13 19:00:03,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 169 transitions, 523 flow [2022-12-13 19:00:03,359 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 169 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:00:03,360 INFO L231 Difference]: Finished difference. Result has 140 places, 147 transitions, 338 flow [2022-12-13 19:00:03,361 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=140, PETRI_TRANSITIONS=147} [2022-12-13 19:00:03,361 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, 0 predicate places. [2022-12-13 19:00:03,361 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 147 transitions, 338 flow [2022-12-13 19:00:03,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.66666666666666) internal successors, (674), 3 states have internal predecessors, (674), 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 19:00:03,362 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:03,362 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:03,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:00:03,362 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:03,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:03,362 INFO L85 PathProgramCache]: Analyzing trace with hash 225317234, now seen corresponding path program 1 times [2022-12-13 19:00:03,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:03,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974355505] [2022-12-13 19:00:03,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:03,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:03,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:03,404 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 19:00:03,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:03,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974355505] [2022-12-13 19:00:03,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974355505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:03,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:03,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:00:03,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459834961] [2022-12-13 19:00:03,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:03,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:00:03,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:03,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:00:03,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:00:03,422 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 348 [2022-12-13 19:00:03,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 147 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 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 19:00:03,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:00:03,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 348 [2022-12-13 19:00:03,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:00:03,910 INFO L130 PetriNetUnfolder]: 1985/5685 cut-off events. [2022-12-13 19:00:03,911 INFO L131 PetriNetUnfolder]: For 442/511 co-relation queries the response was YES. [2022-12-13 19:00:03,921 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9043 conditions, 5685 events. 1985/5685 cut-off events. For 442/511 co-relation queries the response was YES. Maximal size of possible extension queue 170. Compared 48803 event pairs, 1295 based on Foata normal form. 0/4713 useless extension candidates. Maximal degree in co-relation 9037. Up to 2537 conditions per place. [2022-12-13 19:00:03,940 INFO L137 encePairwiseOnDemand]: 342/348 looper letters, 69 selfloop transitions, 5 changer transitions 0/172 dead transitions. [2022-12-13 19:00:03,940 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 172 transitions, 548 flow [2022-12-13 19:00:03,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:00:03,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:00:03,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 741 transitions. [2022-12-13 19:00:03,943 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7097701149425287 [2022-12-13 19:00:03,943 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 741 transitions. [2022-12-13 19:00:03,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 741 transitions. [2022-12-13 19:00:03,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:00:03,944 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 741 transitions. [2022-12-13 19:00:03,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 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 19:00:03,947 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:03,948 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:03,948 INFO L175 Difference]: Start difference. First operand has 140 places, 147 transitions, 338 flow. Second operand 3 states and 741 transitions. [2022-12-13 19:00:03,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 172 transitions, 548 flow [2022-12-13 19:00:03,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 172 transitions, 536 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:00:03,953 INFO L231 Difference]: Finished difference. Result has 142 places, 151 transitions, 368 flow [2022-12-13 19:00:03,954 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=330, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=368, PETRI_PLACES=142, PETRI_TRANSITIONS=151} [2022-12-13 19:00:03,954 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, 2 predicate places. [2022-12-13 19:00:03,954 INFO L495 AbstractCegarLoop]: Abstraction has has 142 places, 151 transitions, 368 flow [2022-12-13 19:00:03,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 225.66666666666666) internal successors, (677), 3 states have internal predecessors, (677), 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 19:00:03,955 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:03,955 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:03,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:00:03,955 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:03,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:03,956 INFO L85 PathProgramCache]: Analyzing trace with hash 1781525082, now seen corresponding path program 1 times [2022-12-13 19:00:03,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:03,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448449137] [2022-12-13 19:00:03,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:03,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:03,981 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 19:00:03,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:03,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448449137] [2022-12-13 19:00:03,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448449137] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:03,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:03,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:00:03,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851426179] [2022-12-13 19:00:03,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:03,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:00:03,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:03,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:00:03,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:00:04,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 348 [2022-12-13 19:00:04,011 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 151 transitions, 368 flow. Second operand has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 19:00:04,011 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:00:04,011 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 348 [2022-12-13 19:00:04,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:00:04,861 INFO L130 PetriNetUnfolder]: 4917/12145 cut-off events. [2022-12-13 19:00:04,861 INFO L131 PetriNetUnfolder]: For 956/1109 co-relation queries the response was YES. [2022-12-13 19:00:04,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21304 conditions, 12145 events. 4917/12145 cut-off events. For 956/1109 co-relation queries the response was YES. Maximal size of possible extension queue 312. Compared 108378 event pairs, 1506 based on Foata normal form. 0/10585 useless extension candidates. Maximal degree in co-relation 21297. Up to 4429 conditions per place. [2022-12-13 19:00:04,920 INFO L137 encePairwiseOnDemand]: 320/348 looper letters, 111 selfloop transitions, 21 changer transitions 0/212 dead transitions. [2022-12-13 19:00:04,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 212 transitions, 785 flow [2022-12-13 19:00:04,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:00:04,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:00:04,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 741 transitions. [2022-12-13 19:00:04,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7097701149425287 [2022-12-13 19:00:04,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 741 transitions. [2022-12-13 19:00:04,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 741 transitions. [2022-12-13 19:00:04,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:00:04,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 741 transitions. [2022-12-13 19:00:04,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 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 19:00:04,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:04,926 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:04,926 INFO L175 Difference]: Start difference. First operand has 142 places, 151 transitions, 368 flow. Second operand 3 states and 741 transitions. [2022-12-13 19:00:04,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 212 transitions, 785 flow [2022-12-13 19:00:04,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 212 transitions, 769 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:00:04,930 INFO L231 Difference]: Finished difference. Result has 144 places, 172 transitions, 546 flow [2022-12-13 19:00:04,931 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=546, PETRI_PLACES=144, PETRI_TRANSITIONS=172} [2022-12-13 19:00:04,931 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, 4 predicate places. [2022-12-13 19:00:04,931 INFO L495 AbstractCegarLoop]: Abstraction has has 144 places, 172 transitions, 546 flow [2022-12-13 19:00:04,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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 19:00:04,933 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:04,933 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:04,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 19:00:04,933 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:04,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1607585640, now seen corresponding path program 1 times [2022-12-13 19:00:04,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:04,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237709646] [2022-12-13 19:00:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:04,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:04,966 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 19:00:04,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:04,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237709646] [2022-12-13 19:00:04,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237709646] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:04,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:04,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:00:04,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96099395] [2022-12-13 19:00:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:04,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:00:04,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:04,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:00:04,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:00:04,986 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 223 out of 348 [2022-12-13 19:00:04,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 172 transitions, 546 flow. Second operand has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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 19:00:04,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:00:04,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 223 of 348 [2022-12-13 19:00:04,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:00:05,835 INFO L130 PetriNetUnfolder]: 3802/10948 cut-off events. [2022-12-13 19:00:05,835 INFO L131 PetriNetUnfolder]: For 2345/2586 co-relation queries the response was YES. [2022-12-13 19:00:05,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19915 conditions, 10948 events. 3802/10948 cut-off events. For 2345/2586 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 105488 event pairs, 2335 based on Foata normal form. 36/9424 useless extension candidates. Maximal degree in co-relation 19907. Up to 5049 conditions per place. [2022-12-13 19:00:05,915 INFO L137 encePairwiseOnDemand]: 343/348 looper letters, 79 selfloop transitions, 5 changer transitions 0/200 dead transitions. [2022-12-13 19:00:05,915 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 200 transitions, 805 flow [2022-12-13 19:00:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:00:05,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:00:05,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 739 transitions. [2022-12-13 19:00:05,918 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7078544061302682 [2022-12-13 19:00:05,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 739 transitions. [2022-12-13 19:00:05,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 739 transitions. [2022-12-13 19:00:05,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:00:05,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 739 transitions. [2022-12-13 19:00:05,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 246.33333333333334) internal successors, (739), 3 states have internal predecessors, (739), 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 19:00:05,923 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:05,924 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:05,924 INFO L175 Difference]: Start difference. First operand has 144 places, 172 transitions, 546 flow. Second operand 3 states and 739 transitions. [2022-12-13 19:00:05,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 200 transitions, 805 flow [2022-12-13 19:00:05,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 200 transitions, 757 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:00:05,934 INFO L231 Difference]: Finished difference. Result has 145 places, 175 transitions, 535 flow [2022-12-13 19:00:05,934 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=535, PETRI_PLACES=145, PETRI_TRANSITIONS=175} [2022-12-13 19:00:05,935 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2022-12-13 19:00:05,935 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 175 transitions, 535 flow [2022-12-13 19:00:05,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 226.33333333333334) internal successors, (679), 3 states have internal predecessors, (679), 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 19:00:05,936 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:05,936 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:05,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 19:00:05,936 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:05,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:05,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1568262519, now seen corresponding path program 1 times [2022-12-13 19:00:05,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:05,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596915] [2022-12-13 19:00:05,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:05,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:05,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:05,970 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 19:00:05,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:05,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596915] [2022-12-13 19:00:05,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596915] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:05,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:05,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:00:05,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103097220] [2022-12-13 19:00:05,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:05,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:00:05,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:05,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:00:05,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:00:05,990 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 348 [2022-12-13 19:00:05,991 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 175 transitions, 535 flow. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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 19:00:05,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:00:05,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 348 [2022-12-13 19:00:05,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:00:06,696 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([752] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 235#true, Black: 256#true, 262#true, 39#L727-1true, 165#L742-4true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 264#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 267#true, 158#L693-1true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-12-13 19:00:06,696 INFO L383 tUnfolder$Statistics]: this new event has 47 ancestors and is cut-off event [2022-12-13 19:00:06,696 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-12-13 19:00:06,696 INFO L386 tUnfolder$Statistics]: existing Event has 44 ancestors and is cut-off event [2022-12-13 19:00:06,696 INFO L386 tUnfolder$Statistics]: existing Event has 47 ancestors and is cut-off event [2022-12-13 19:00:06,696 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([689] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][187], [Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 4#L727-5true, 235#true, Black: 256#true, 262#true, 165#L742-4true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, 269#(= ~y~0 0), 133#L693-4true, Black: 264#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-12-13 19:00:06,696 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2022-12-13 19:00:06,696 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([690] L727-2-->L727-4: Formula: (not (= v_~y~0_9 0)) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9} AuxVars[] AssignedVars[][188], [Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 235#true, 147#L727-4true, Black: 256#true, 262#true, 165#L742-4true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, 133#L693-4true, Black: 264#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 267#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-12-13 19:00:06,697 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([752] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 235#true, Black: 256#true, 262#true, 165#L742-4true, 138#L727-2true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 264#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 267#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|), 158#L693-1true]) [2022-12-13 19:00:06,697 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-12-13 19:00:06,697 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-12-13 19:00:06,698 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-12-13 19:00:06,715 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([752] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 235#true, Black: 256#true, 262#true, 39#L727-1true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 264#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 98#L743-6true, 267#true, 158#L693-1true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-12-13 19:00:06,715 INFO L383 tUnfolder$Statistics]: this new event has 48 ancestors and is cut-off event [2022-12-13 19:00:06,715 INFO L386 tUnfolder$Statistics]: existing Event has 48 ancestors and is cut-off event [2022-12-13 19:00:06,715 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-12-13 19:00:06,715 INFO L386 tUnfolder$Statistics]: existing Event has 45 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([689] L727-2-->L727-5: Formula: (= v_~y~0_8 0) InVars {~y~0=v_~y~0_8} OutVars{~y~0=v_~y~0_8} AuxVars[] AssignedVars[][187], [4#L727-5true, Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 235#true, Black: 256#true, 262#true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, 269#(= ~y~0 0), 133#L693-4true, Black: 264#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 98#L743-6true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-12-13 19:00:06,716 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([690] L727-2-->L727-4: Formula: (not (= v_~y~0_9 0)) InVars {~y~0=v_~y~0_9} OutVars{~y~0=v_~y~0_9} AuxVars[] AssignedVars[][188], [Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 235#true, 147#L727-4true, Black: 256#true, 262#true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, 133#L693-4true, Black: 264#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 98#L743-6true, 267#true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-12-13 19:00:06,716 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2022-12-13 19:00:06,716 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([752] L693-4-->L693-1: Formula: (= |v_#race~y~0_25| 0) InVars {} OutVars{#race~y~0=|v_#race~y~0_25|} AuxVars[] AssignedVars[#race~y~0][155], [Black: 240#(= |#race~b1~0| |thr1Thread1of1ForFork0_#t~nondet3|), 235#true, Black: 256#true, 262#true, 138#L727-2true, Black: 246#(= |#race~b2~0| |thr2Thread1of1ForFork1_#t~nondet11|), thr2Thread1of1ForFork1InUse, Black: 264#(= |#race~x~0| |thr2Thread1of1ForFork1_#t~nondet12|), 98#L743-6true, 267#true, 158#L693-1true, Black: 252#(= |thr1Thread1of1ForFork0_#t~nondet4| |#race~x~0|)]) [2022-12-13 19:00:06,717 INFO L383 tUnfolder$Statistics]: this new event has 49 ancestors and is cut-off event [2022-12-13 19:00:06,717 INFO L386 tUnfolder$Statistics]: existing Event has 49 ancestors and is cut-off event [2022-12-13 19:00:06,717 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2022-12-13 19:00:06,717 INFO L386 tUnfolder$Statistics]: existing Event has 46 ancestors and is cut-off event [2022-12-13 19:00:07,041 INFO L130 PetriNetUnfolder]: 5891/15039 cut-off events. [2022-12-13 19:00:07,041 INFO L131 PetriNetUnfolder]: For 2312/2813 co-relation queries the response was YES. [2022-12-13 19:00:07,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28900 conditions, 15039 events. 5891/15039 cut-off events. For 2312/2813 co-relation queries the response was YES. Maximal size of possible extension queue 457. Compared 146427 event pairs, 2033 based on Foata normal form. 236/13461 useless extension candidates. Maximal degree in co-relation 28891. Up to 5300 conditions per place. [2022-12-13 19:00:07,107 INFO L137 encePairwiseOnDemand]: 329/348 looper letters, 119 selfloop transitions, 11 changer transitions 0/234 dead transitions. [2022-12-13 19:00:07,107 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 234 transitions, 970 flow [2022-12-13 19:00:07,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:00:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:00:07,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2022-12-13 19:00:07,109 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7222222222222222 [2022-12-13 19:00:07,110 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2022-12-13 19:00:07,110 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2022-12-13 19:00:07,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:00:07,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2022-12-13 19:00:07,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 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 19:00:07,114 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:07,115 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:07,115 INFO L175 Difference]: Start difference. First operand has 145 places, 175 transitions, 535 flow. Second operand 3 states and 754 transitions. [2022-12-13 19:00:07,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 234 transitions, 970 flow [2022-12-13 19:00:07,120 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 234 transitions, 963 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 19:00:07,123 INFO L231 Difference]: Finished difference. Result has 148 places, 185 transitions, 630 flow [2022-12-13 19:00:07,123 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=630, PETRI_PLACES=148, PETRI_TRANSITIONS=185} [2022-12-13 19:00:07,124 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, 8 predicate places. [2022-12-13 19:00:07,124 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 185 transitions, 630 flow [2022-12-13 19:00:07,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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 19:00:07,124 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:07,124 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:07,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 19:00:07,125 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:07,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:07,125 INFO L85 PathProgramCache]: Analyzing trace with hash -1568225007, now seen corresponding path program 1 times [2022-12-13 19:00:07,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:07,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067293511] [2022-12-13 19:00:07,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:07,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:07,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:00:07,152 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 19:00:07,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:00:07,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067293511] [2022-12-13 19:00:07,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067293511] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:00:07,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:00:07,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 19:00:07,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828672463] [2022-12-13 19:00:07,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:00:07,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:00:07,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:00:07,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:00:07,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:00:07,186 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 215 out of 348 [2022-12-13 19:00:07,187 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 185 transitions, 630 flow. Second operand has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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 19:00:07,187 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:00:07,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 215 of 348 [2022-12-13 19:00:07,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:00:08,375 INFO L130 PetriNetUnfolder]: 5347/14337 cut-off events. [2022-12-13 19:00:08,375 INFO L131 PetriNetUnfolder]: For 3501/3920 co-relation queries the response was YES. [2022-12-13 19:00:08,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28989 conditions, 14337 events. 5347/14337 cut-off events. For 3501/3920 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 143739 event pairs, 3225 based on Foata normal form. 56/12820 useless extension candidates. Maximal degree in co-relation 28979. Up to 7639 conditions per place. [2022-12-13 19:00:08,420 INFO L137 encePairwiseOnDemand]: 339/348 looper letters, 91 selfloop transitions, 14 changer transitions 0/218 dead transitions. [2022-12-13 19:00:08,420 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 218 transitions, 944 flow [2022-12-13 19:00:08,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:00:08,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:00:08,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 724 transitions. [2022-12-13 19:00:08,422 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6934865900383141 [2022-12-13 19:00:08,422 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 724 transitions. [2022-12-13 19:00:08,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 724 transitions. [2022-12-13 19:00:08,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:00:08,423 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 724 transitions. [2022-12-13 19:00:08,423 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 241.33333333333334) internal successors, (724), 3 states have internal predecessors, (724), 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 19:00:08,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:08,425 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 348.0) internal successors, (1392), 4 states have internal predecessors, (1392), 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 19:00:08,425 INFO L175 Difference]: Start difference. First operand has 148 places, 185 transitions, 630 flow. Second operand 3 states and 724 transitions. [2022-12-13 19:00:08,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 218 transitions, 944 flow [2022-12-13 19:00:08,431 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 218 transitions, 922 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:00:08,432 INFO L231 Difference]: Finished difference. Result has 149 places, 197 transitions, 722 flow [2022-12-13 19:00:08,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=348, PETRI_DIFFERENCE_MINUEND_FLOW=608, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=722, PETRI_PLACES=149, PETRI_TRANSITIONS=197} [2022-12-13 19:00:08,433 INFO L288 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2022-12-13 19:00:08,433 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 197 transitions, 722 flow [2022-12-13 19:00:08,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 218.66666666666666) internal successors, (656), 3 states have internal predecessors, (656), 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 19:00:08,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:00:08,433 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:08,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 19:00:08,434 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2022-12-13 19:00:08,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:00:08,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1419797631, now seen corresponding path program 1 times [2022-12-13 19:00:08,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:00:08,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482439083] [2022-12-13 19:00:08,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:00:08,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:00:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:00:08,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:00:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:00:08,466 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:00:08,466 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:00:08,467 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err1ASSERT_VIOLATIONDATA_RACE (63 of 64 remaining) [2022-12-13 19:00:08,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (62 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (61 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (60 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (59 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (58 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (57 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (56 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (55 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (54 of 64 remaining) [2022-12-13 19:00:08,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (53 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (52 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (51 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (50 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (49 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (48 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (47 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (46 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (45 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (44 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (43 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (42 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (41 of 64 remaining) [2022-12-13 19:00:08,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (40 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (39 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (37 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (36 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (35 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (34 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (33 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (32 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (31 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (28 of 64 remaining) [2022-12-13 19:00:08,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (27 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err12ASSERT_VIOLATIONDATA_RACE (26 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (25 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err13ASSERT_VIOLATIONDATA_RACE (24 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (23 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err14ASSERT_VIOLATIONDATA_RACE (22 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (21 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (20 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (18 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (17 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (16 of 64 remaining) [2022-12-13 19:00:08,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (15 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (14 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (13 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (11 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (10 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (8 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (7 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (5 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (4 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (3 of 64 remaining) [2022-12-13 19:00:08,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 64 remaining) [2022-12-13 19:00:08,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (1 of 64 remaining) [2022-12-13 19:00:08,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (0 of 64 remaining) [2022-12-13 19:00:08,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 19:00:08,474 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:00:08,479 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:00:08,479 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:00:08,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:00:08 BasicIcfg [2022-12-13 19:00:08,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:00:08,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:00:08,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:00:08,500 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:00:08,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:59:59" (3/4) ... [2022-12-13 19:00:08,502 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:00:08,502 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:00:08,502 INFO L158 Benchmark]: Toolchain (without parser) took 9857.19ms. Allocated memory was 138.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 102.6MB in the beginning and 906.6MB in the end (delta: -804.0MB). Peak memory consumption was 414.4MB. Max. memory is 16.1GB. [2022-12-13 19:00:08,503 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 100.7MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:00:08,503 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.29ms. Allocated memory is still 138.4MB. Free memory was 102.6MB in the beginning and 82.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 19:00:08,503 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.04ms. Allocated memory is still 138.4MB. Free memory was 82.5MB in the beginning and 80.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:00:08,503 INFO L158 Benchmark]: Boogie Preprocessor took 22.02ms. Allocated memory is still 138.4MB. Free memory was 80.3MB in the beginning and 78.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:00:08,504 INFO L158 Benchmark]: RCFGBuilder took 449.75ms. Allocated memory is still 138.4MB. Free memory was 78.3MB in the beginning and 102.8MB in the end (delta: -24.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 19:00:08,504 INFO L158 Benchmark]: TraceAbstraction took 8987.09ms. Allocated memory was 138.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 101.6MB in the beginning and 906.6MB in the end (delta: -804.9MB). Peak memory consumption was 410.2MB. Max. memory is 16.1GB. [2022-12-13 19:00:08,504 INFO L158 Benchmark]: Witness Printer took 2.65ms. Allocated memory is still 1.4GB. Free memory is still 906.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:00:08,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 100.7MB. Free memory is still 49.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.29ms. Allocated memory is still 138.4MB. Free memory was 102.6MB in the beginning and 82.5MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.04ms. Allocated memory is still 138.4MB. Free memory was 82.5MB in the beginning and 80.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.02ms. Allocated memory is still 138.4MB. Free memory was 80.3MB in the beginning and 78.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 449.75ms. Allocated memory is still 138.4MB. Free memory was 78.3MB in the beginning and 102.8MB in the end (delta: -24.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8987.09ms. Allocated memory was 138.4MB in the beginning and 1.4GB in the end (delta: 1.2GB). Free memory was 101.6MB in the beginning and 906.6MB in the end (delta: -804.9MB). Peak memory consumption was 410.2MB. Max. memory is 16.1GB. * Witness Printer took 2.65ms. Allocated memory is still 1.4GB. Free memory is still 906.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.9s, 220 PlacesBefore, 140 PlacesAfterwards, 237 TransitionsBefore, 157 TransitionsAfterwards, 24320 CoEnabledTransitionPairs, 5 FixpointIterations, 21 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 0 ChoiceCompositions, 99 TotalNumberOfCompositions, 127582 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 38206, independent: 36823, independent conditional: 0, independent unconditional: 36823, dependent: 1383, dependent conditional: 0, dependent unconditional: 1383, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 10593, independent: 10390, independent conditional: 0, independent unconditional: 10390, dependent: 203, dependent conditional: 0, dependent unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 38206, independent: 26433, independent conditional: 0, independent unconditional: 26433, dependent: 1180, dependent conditional: 0, dependent unconditional: 1180, unknown: 10593, unknown conditional: 0, unknown unconditional: 10593] , Statistics on independence cache: Total cache size (in pairs): 3086, Positive cache size: 2943, Positive conditional cache size: 0, Positive unconditional cache size: 2943, Negative cache size: 143, Negative conditional cache size: 0, Negative unconditional cache size: 143, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 690]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int x, y; [L685] 0 int b1, b2; [L686] 0 int X; [L740] 0 pthread_t t1, t2; [L741] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, b1=0, b2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={5:0}, t2={3:0}, X=0, x=0, y=0] [L688] COND TRUE 1 1 [L689] 1 b1 = 1 VAL [_={0:0}, _={0:0}, b1=1, b2=0, x=0, X=0, y=0] [L742] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, b1=1, b2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={5:0}, t2={3:0}, X=0, x=0, y=0] [L690] 1 x = 1 VAL [_={0:0}, _={0:0}, _={0:0}, b1=1, b2=0, X=0, x=1, y=0] [L714] COND TRUE 2 1 [L715] 2 b2 = 1 [L716] 2 x = 2 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, X=0, x=2, y=0] [L690] 1 x = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, b1=1, b2=1, x=2, X=0, x = 1=51, x = 2=52, y=0] Now there is a data race on ~x~0 between C: x = 2 [716] and C: x = 1 [690] - UnprovableResult [Line: 733]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 735]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 736]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 743]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 741]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 742]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 396 locations, 64 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.8s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 525 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 261 mSDsluCounter, 87 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 61 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1020 IncrementalHoareTripleChecker+Invalid, 1081 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 61 mSolverCounterUnsat, 87 mSDtfsCounter, 1020 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=722occurred in iteration=8, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 19:00:08,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3db46c77-4fe0-4833-82b8-c239070ca17d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE