./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/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_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/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_480170c2-db1b-422e-8091-aaa9741d300d/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 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 --- 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 20:21:51,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:21:51,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:21:51,049 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:21:51,050 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:21:51,051 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:21:51,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:21:51,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:21:51,059 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:21:51,060 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:21:51,061 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:21:51,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:21:51,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:21:51,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:21:51,067 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:21:51,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:21:51,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:21:51,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:21:51,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:21:51,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:21:51,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:21:51,079 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:21:51,080 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:21:51,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:21:51,083 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:21:51,083 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:21:51,083 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:21:51,083 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:21:51,084 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:21:51,084 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:21:51,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:21:51,085 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:21:51,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:21:51,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:21:51,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:21:51,087 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:21:51,087 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:21:51,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:21:51,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:21:51,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:21:51,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:21:51,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 20:21:51,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:21:51,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:21:51,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:21:51,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:21:51,104 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:21:51,104 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:21:51,105 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:21:51,105 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:21:51,105 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:21:51,105 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:21:51,105 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 20:21:51,106 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:21:51,106 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:21:51,106 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 20:21:51,106 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:21:51,106 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:21:51,106 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:21:51,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:21:51,106 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 20:21:51,107 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 20:21:51,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:21:51,107 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:21:51,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:21:51,107 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:21:51,107 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:21:51,108 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:21:51,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:21:51,108 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:21:51,108 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:21:51,108 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:21:51,108 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:21:51,108 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:21:51,109 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:21:51,109 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:21:51,109 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:21:51,109 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:21:51,109 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:21:51,109 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_480170c2-db1b-422e-8091-aaa9741d300d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8fcb457b1bed8494a9a3b58e82500f367f4337ac38b5a41a5dad0da896f97e40 [2022-12-13 20:21:51,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:21:51,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:21:51,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:21:51,304 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:21:51,304 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:21:51,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2022-12-13 20:21:53,938 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:21:54,138 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:21:54,138 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i [2022-12-13 20:21:54,149 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/data/c28e82c86/1cc0ece6b85548fca8f2916f2045b6f1/FLAG7f84d3777 [2022-12-13 20:21:54,163 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/data/c28e82c86/1cc0ece6b85548fca8f2916f2045b6f1 [2022-12-13 20:21:54,166 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:21:54,167 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:21:54,168 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:21:54,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:21:54,172 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:21:54,172 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,173 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22ee921c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54, skipping insertion in model container [2022-12-13 20:21:54,173 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,181 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:21:54,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:21:54,499 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_480170c2-db1b-422e-8091-aaa9741d300d/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-12-13 20:21:54,503 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_480170c2-db1b-422e-8091-aaa9741d300d/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-12-13 20:21:54,508 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_480170c2-db1b-422e-8091-aaa9741d300d/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-12-13 20:21:54,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:21:54,525 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:21:54,558 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_480170c2-db1b-422e-8091-aaa9741d300d/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30451,30464] [2022-12-13 20:21:54,560 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_480170c2-db1b-422e-8091-aaa9741d300d/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30681,30694] [2022-12-13 20:21:54,562 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_480170c2-db1b-422e-8091-aaa9741d300d/sv-benchmarks/c/pthread-deagle/circular_buffer_ok.i[30979,30992] [2022-12-13 20:21:54,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:21:54,598 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:21:54,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54 WrapperNode [2022-12-13 20:21:54,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:21:54,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:21:54,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:21:54,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:21:54,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,623 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,647 INFO L138 Inliner]: procedures = 168, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 250 [2022-12-13 20:21:54,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:21:54,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:21:54,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:21:54,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:21:54,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:21:54,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:21:54,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:21:54,680 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:21:54,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (1/1) ... [2022-12-13 20:21:54,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:21:54,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:21:54,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:21:54,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:21:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 20:21:54,732 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 20:21:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 20:21:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:21:54,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:21:54,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:21:54,734 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 20:21:54,839 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:21:54,842 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:21:55,180 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:21:55,188 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:21:55,188 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 20:21:55,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:21:55 BoogieIcfgContainer [2022-12-13 20:21:55,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:21:55,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:21:55,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:21:55,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:21:55,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:21:54" (1/3) ... [2022-12-13 20:21:55,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2569d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:21:55, skipping insertion in model container [2022-12-13 20:21:55,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:21:54" (2/3) ... [2022-12-13 20:21:55,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2569d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:21:55, skipping insertion in model container [2022-12-13 20:21:55,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:21:55" (3/3) ... [2022-12-13 20:21:55,196 INFO L112 eAbstractionObserver]: Analyzing ICFG circular_buffer_ok.i [2022-12-13 20:21:55,203 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 20:21:55,211 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:21:55,211 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 33 error locations. [2022-12-13 20:21:55,211 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 20:21:55,295 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 20:21:55,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 292 places, 298 transitions, 612 flow [2022-12-13 20:21:55,405 INFO L130 PetriNetUnfolder]: 13/296 cut-off events. [2022-12-13 20:21:55,405 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 20:21:55,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 305 conditions, 296 events. 13/296 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 793 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 204. Up to 2 conditions per place. [2022-12-13 20:21:55,412 INFO L82 GeneralOperation]: Start removeDead. Operand has 292 places, 298 transitions, 612 flow [2022-12-13 20:21:55,419 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 280 places, 286 transitions, 581 flow [2022-12-13 20:21:55,422 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 20:21:55,430 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 280 places, 286 transitions, 581 flow [2022-12-13 20:21:55,433 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 280 places, 286 transitions, 581 flow [2022-12-13 20:21:55,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 280 places, 286 transitions, 581 flow [2022-12-13 20:21:55,477 INFO L130 PetriNetUnfolder]: 13/286 cut-off events. [2022-12-13 20:21:55,477 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 20:21:55,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 286 events. 13/286 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 723 event pairs, 0 based on Foata normal form. 0/240 useless extension candidates. Maximal degree in co-relation 204. Up to 2 conditions per place. [2022-12-13 20:21:55,485 INFO L119 LiptonReduction]: Number of co-enabled transitions 23022 [2022-12-13 20:22:00,546 INFO L134 LiptonReduction]: Checked pairs total: 115151 [2022-12-13 20:22:00,546 INFO L136 LiptonReduction]: Total number of compositions: 222 [2022-12-13 20:22:00,557 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:22:00,562 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;@176b9826, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:22:00,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 60 error locations. [2022-12-13 20:22:00,563 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 20:22:00,564 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 20:22:00,564 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:00,564 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 20:22:00,564 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:00,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:00,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1094, now seen corresponding path program 1 times [2022-12-13 20:22:00,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:00,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785884077] [2022-12-13 20:22:00,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:00,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:00,676 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 20:22:00,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:00,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785884077] [2022-12-13 20:22:00,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785884077] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:00,678 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:00,678 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 20:22:00,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215038259] [2022-12-13 20:22:00,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:00,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:22:00,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:00,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:22:00,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:22:00,706 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 286 out of 520 [2022-12-13 20:22:00,708 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 122 transitions, 253 flow. Second operand has 2 states, 2 states have (on average 286.5) internal successors, (573), 2 states have internal predecessors, (573), 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 20:22:00,709 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:00,709 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 286 of 520 [2022-12-13 20:22:00,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:01,110 INFO L130 PetriNetUnfolder]: 1437/3453 cut-off events. [2022-12-13 20:22:01,110 INFO L131 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2022-12-13 20:22:01,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5776 conditions, 3453 events. 1437/3453 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 25399 event pairs, 1109 based on Foata normal form. 76/2932 useless extension candidates. Maximal degree in co-relation 5512. Up to 2259 conditions per place. [2022-12-13 20:22:01,129 INFO L137 encePairwiseOnDemand]: 508/520 looper letters, 51 selfloop transitions, 0 changer transitions 0/109 dead transitions. [2022-12-13 20:22:01,129 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 109 transitions, 329 flow [2022-12-13 20:22:01,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:22:01,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 20:22:01,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 635 transitions. [2022-12-13 20:22:01,144 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6105769230769231 [2022-12-13 20:22:01,145 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 635 transitions. [2022-12-13 20:22:01,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 635 transitions. [2022-12-13 20:22:01,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:01,150 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 635 transitions. [2022-12-13 20:22:01,155 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 317.5) internal successors, (635), 2 states have internal predecessors, (635), 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 20:22:01,160 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 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 20:22:01,161 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 520.0) internal successors, (1560), 3 states have internal predecessors, (1560), 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 20:22:01,162 INFO L175 Difference]: Start difference. First operand has 119 places, 122 transitions, 253 flow. Second operand 2 states and 635 transitions. [2022-12-13 20:22:01,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 109 transitions, 329 flow [2022-12-13 20:22:01,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 109 transitions, 324 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 20:22:01,167 INFO L231 Difference]: Finished difference. Result has 106 places, 109 transitions, 222 flow [2022-12-13 20:22:01,169 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=222, PETRI_PLACES=106, PETRI_TRANSITIONS=109} [2022-12-13 20:22:01,172 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -13 predicate places. [2022-12-13 20:22:01,172 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 109 transitions, 222 flow [2022-12-13 20:22:01,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 286.5) internal successors, (573), 2 states have internal predecessors, (573), 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 20:22:01,172 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:01,173 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 20:22:01,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:22:01,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:01,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:01,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2118982231, now seen corresponding path program 1 times [2022-12-13 20:22:01,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:01,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613976363] [2022-12-13 20:22:01,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:01,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:01,254 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 20:22:01,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:01,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613976363] [2022-12-13 20:22:01,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613976363] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:01,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:01,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:22:01,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776378435] [2022-12-13 20:22:01,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:01,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:01,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:01,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:01,273 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 520 [2022-12-13 20:22:01,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 109 transitions, 222 flow. Second operand has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 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 20:22:01,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:01,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 520 [2022-12-13 20:22:01,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:01,811 INFO L130 PetriNetUnfolder]: 2683/6108 cut-off events. [2022-12-13 20:22:01,811 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-13 20:22:01,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10364 conditions, 6108 events. 2683/6108 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 46794 event pairs, 691 based on Foata normal form. 0/5140 useless extension candidates. Maximal degree in co-relation 10361. Up to 2315 conditions per place. [2022-12-13 20:22:01,834 INFO L137 encePairwiseOnDemand]: 515/520 looper letters, 95 selfloop transitions, 4 changer transitions 0/155 dead transitions. [2022-12-13 20:22:01,834 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 155 transitions, 515 flow [2022-12-13 20:22:01,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:01,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:01,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 940 transitions. [2022-12-13 20:22:01,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6025641025641025 [2022-12-13 20:22:01,837 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 940 transitions. [2022-12-13 20:22:01,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 940 transitions. [2022-12-13 20:22:01,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:01,838 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 940 transitions. [2022-12-13 20:22:01,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 313.3333333333333) internal successors, (940), 3 states have internal predecessors, (940), 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 20:22:01,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:01,842 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:01,842 INFO L175 Difference]: Start difference. First operand has 106 places, 109 transitions, 222 flow. Second operand 3 states and 940 transitions. [2022-12-13 20:22:01,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 155 transitions, 515 flow [2022-12-13 20:22:01,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 155 transitions, 515 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:22:01,844 INFO L231 Difference]: Finished difference. Result has 110 places, 113 transitions, 256 flow [2022-12-13 20:22:01,845 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=256, PETRI_PLACES=110, PETRI_TRANSITIONS=113} [2022-12-13 20:22:01,845 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -9 predicate places. [2022-12-13 20:22:01,845 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 113 transitions, 256 flow [2022-12-13 20:22:01,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.0) internal successors, (846), 3 states have internal predecessors, (846), 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 20:22:01,846 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:01,846 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:01,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:22:01,846 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:01,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:01,846 INFO L85 PathProgramCache]: Analyzing trace with hash -2074369917, now seen corresponding path program 1 times [2022-12-13 20:22:01,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:01,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884262947] [2022-12-13 20:22:01,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:01,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:01,900 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 20:22:01,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:01,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884262947] [2022-12-13 20:22:01,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884262947] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:01,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:01,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:22:01,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071313201] [2022-12-13 20:22:01,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:01,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:01,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:01,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:01,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:01,917 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 520 [2022-12-13 20:22:01,919 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 113 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 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 20:22:01,919 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:01,919 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 520 [2022-12-13 20:22:01,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:02,731 INFO L130 PetriNetUnfolder]: 4220/8951 cut-off events. [2022-12-13 20:22:02,732 INFO L131 PetriNetUnfolder]: For 563/563 co-relation queries the response was YES. [2022-12-13 20:22:02,742 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16176 conditions, 8951 events. 4220/8951 cut-off events. For 563/563 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 70509 event pairs, 1082 based on Foata normal form. 0/7574 useless extension candidates. Maximal degree in co-relation 16171. Up to 3328 conditions per place. [2022-12-13 20:22:02,773 INFO L137 encePairwiseOnDemand]: 515/520 looper letters, 98 selfloop transitions, 4 changer transitions 0/159 dead transitions. [2022-12-13 20:22:02,773 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 159 transitions, 565 flow [2022-12-13 20:22:02,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:02,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 938 transitions. [2022-12-13 20:22:02,777 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6012820512820513 [2022-12-13 20:22:02,777 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 938 transitions. [2022-12-13 20:22:02,778 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 938 transitions. [2022-12-13 20:22:02,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:02,778 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 938 transitions. [2022-12-13 20:22:02,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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 20:22:02,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:02,786 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:02,786 INFO L175 Difference]: Start difference. First operand has 110 places, 113 transitions, 256 flow. Second operand 3 states and 938 transitions. [2022-12-13 20:22:02,787 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 159 transitions, 565 flow [2022-12-13 20:22:02,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 159 transitions, 553 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:22:02,792 INFO L231 Difference]: Finished difference. Result has 112 places, 117 transitions, 282 flow [2022-12-13 20:22:02,792 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=282, PETRI_PLACES=112, PETRI_TRANSITIONS=117} [2022-12-13 20:22:02,793 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -7 predicate places. [2022-12-13 20:22:02,793 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 117 transitions, 282 flow [2022-12-13 20:22:02,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 282.6666666666667) internal successors, (848), 3 states have internal predecessors, (848), 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 20:22:02,793 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:02,794 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:02,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 20:22:02,794 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:02,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:02,794 INFO L85 PathProgramCache]: Analyzing trace with hash -828672614, now seen corresponding path program 1 times [2022-12-13 20:22:02,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:02,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011164895] [2022-12-13 20:22:02,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:02,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:02,841 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 20:22:02,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:02,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011164895] [2022-12-13 20:22:02,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011164895] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:02,841 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:02,841 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:22:02,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148168591] [2022-12-13 20:22:02,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:02,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:02,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:02,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:02,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:02,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 520 [2022-12-13 20:22:02,864 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 117 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 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 20:22:02,865 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:02,865 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 520 [2022-12-13 20:22:02,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:03,692 INFO L130 PetriNetUnfolder]: 5428/11396 cut-off events. [2022-12-13 20:22:03,693 INFO L131 PetriNetUnfolder]: For 851/851 co-relation queries the response was YES. [2022-12-13 20:22:03,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21317 conditions, 11396 events. 5428/11396 cut-off events. For 851/851 co-relation queries the response was YES. Maximal size of possible extension queue 224. Compared 88757 event pairs, 4028 based on Foata normal form. 0/9906 useless extension candidates. Maximal degree in co-relation 21311. Up to 8373 conditions per place. [2022-12-13 20:22:03,726 INFO L137 encePairwiseOnDemand]: 510/520 looper letters, 88 selfloop transitions, 5 changer transitions 0/141 dead transitions. [2022-12-13 20:22:03,726 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 141 transitions, 534 flow [2022-12-13 20:22:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:03,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 887 transitions. [2022-12-13 20:22:03,728 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5685897435897436 [2022-12-13 20:22:03,728 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 887 transitions. [2022-12-13 20:22:03,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 887 transitions. [2022-12-13 20:22:03,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:03,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 887 transitions. [2022-12-13 20:22:03,730 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 295.6666666666667) internal successors, (887), 3 states have internal predecessors, (887), 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 20:22:03,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:03,732 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:03,732 INFO L175 Difference]: Start difference. First operand has 112 places, 117 transitions, 282 flow. Second operand 3 states and 887 transitions. [2022-12-13 20:22:03,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 141 transitions, 534 flow [2022-12-13 20:22:03,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 141 transitions, 522 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:22:03,736 INFO L231 Difference]: Finished difference. Result has 110 places, 116 transitions, 300 flow [2022-12-13 20:22:03,736 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=110, PETRI_TRANSITIONS=116} [2022-12-13 20:22:03,736 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -9 predicate places. [2022-12-13 20:22:03,736 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 116 transitions, 300 flow [2022-12-13 20:22:03,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.6666666666667) internal successors, (806), 3 states have internal predecessors, (806), 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 20:22:03,737 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:03,737 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:03,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 20:22:03,737 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:03,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:03,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1114988559, now seen corresponding path program 1 times [2022-12-13 20:22:03,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:03,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271532237] [2022-12-13 20:22:03,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:03,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:03,983 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 20:22:03,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:03,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271532237] [2022-12-13 20:22:03,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271532237] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:03,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:03,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 20:22:03,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367916711] [2022-12-13 20:22:03,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:03,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 20:22:03,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:03,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 20:22:03,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 20:22:04,103 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 276 out of 520 [2022-12-13 20:22:04,105 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 116 transitions, 300 flow. Second operand has 6 states, 6 states have (on average 277.6666666666667) internal successors, (1666), 6 states have internal predecessors, (1666), 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 20:22:04,105 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:04,105 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 276 of 520 [2022-12-13 20:22:04,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:08,347 INFO L130 PetriNetUnfolder]: 33362/59038 cut-off events. [2022-12-13 20:22:08,347 INFO L131 PetriNetUnfolder]: For 6901/7268 co-relation queries the response was YES. [2022-12-13 20:22:08,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117341 conditions, 59038 events. 33362/59038 cut-off events. For 6901/7268 co-relation queries the response was YES. Maximal size of possible extension queue 1024. Compared 514241 event pairs, 10097 based on Foata normal form. 286/50975 useless extension candidates. Maximal degree in co-relation 117334. Up to 28058 conditions per place. [2022-12-13 20:22:08,580 INFO L137 encePairwiseOnDemand]: 513/520 looper letters, 275 selfloop transitions, 9 changer transitions 0/334 dead transitions. [2022-12-13 20:22:08,581 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 334 transitions, 1449 flow [2022-12-13 20:22:08,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 20:22:08,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 20:22:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1901 transitions. [2022-12-13 20:22:08,584 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6092948717948717 [2022-12-13 20:22:08,584 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1901 transitions. [2022-12-13 20:22:08,584 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1901 transitions. [2022-12-13 20:22:08,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:08,585 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1901 transitions. [2022-12-13 20:22:08,588 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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 20:22:08,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 520.0) internal successors, (3640), 7 states have internal predecessors, (3640), 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 20:22:08,593 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 520.0) internal successors, (3640), 7 states have internal predecessors, (3640), 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 20:22:08,593 INFO L175 Difference]: Start difference. First operand has 110 places, 116 transitions, 300 flow. Second operand 6 states and 1901 transitions. [2022-12-13 20:22:08,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 334 transitions, 1449 flow [2022-12-13 20:22:08,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 334 transitions, 1423 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:22:08,609 INFO L231 Difference]: Finished difference. Result has 118 places, 124 transitions, 354 flow [2022-12-13 20:22:08,609 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=354, PETRI_PLACES=118, PETRI_TRANSITIONS=124} [2022-12-13 20:22:08,610 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -1 predicate places. [2022-12-13 20:22:08,610 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 124 transitions, 354 flow [2022-12-13 20:22:08,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 277.6666666666667) internal successors, (1666), 6 states have internal predecessors, (1666), 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 20:22:08,611 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:08,611 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:08,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 20:22:08,611 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:08,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:08,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1785409572, now seen corresponding path program 1 times [2022-12-13 20:22:08,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:08,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521623565] [2022-12-13 20:22:08,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:08,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:08,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:08,635 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 20:22:08,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:08,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521623565] [2022-12-13 20:22:08,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521623565] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:08,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:08,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:22:08,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271065769] [2022-12-13 20:22:08,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:08,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:08,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:08,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:08,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:08,650 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 270 out of 520 [2022-12-13 20:22:08,651 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 124 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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 20:22:08,652 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:08,652 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 270 of 520 [2022-12-13 20:22:08,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:11,280 INFO L130 PetriNetUnfolder]: 15170/33762 cut-off events. [2022-12-13 20:22:11,280 INFO L131 PetriNetUnfolder]: For 3089/3236 co-relation queries the response was YES. [2022-12-13 20:22:11,353 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65847 conditions, 33762 events. 15170/33762 cut-off events. For 3089/3236 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 326819 event pairs, 3262 based on Foata normal form. 0/28933 useless extension candidates. Maximal degree in co-relation 65836. Up to 23725 conditions per place. [2022-12-13 20:22:11,437 INFO L137 encePairwiseOnDemand]: 513/520 looper letters, 97 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2022-12-13 20:22:11,437 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 154 transitions, 631 flow [2022-12-13 20:22:11,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:11,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:11,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 903 transitions. [2022-12-13 20:22:11,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5788461538461539 [2022-12-13 20:22:11,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 903 transitions. [2022-12-13 20:22:11,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 903 transitions. [2022-12-13 20:22:11,440 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:11,440 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 903 transitions. [2022-12-13 20:22:11,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.0) internal successors, (903), 3 states have internal predecessors, (903), 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 20:22:11,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:11,443 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:11,444 INFO L175 Difference]: Start difference. First operand has 118 places, 124 transitions, 354 flow. Second operand 3 states and 903 transitions. [2022-12-13 20:22:11,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 154 transitions, 631 flow [2022-12-13 20:22:11,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 154 transitions, 631 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:22:11,451 INFO L231 Difference]: Finished difference. Result has 116 places, 121 transitions, 358 flow [2022-12-13 20:22:11,451 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=358, PETRI_PLACES=116, PETRI_TRANSITIONS=121} [2022-12-13 20:22:11,451 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, -3 predicate places. [2022-12-13 20:22:11,451 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 121 transitions, 358 flow [2022-12-13 20:22:11,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.0) internal successors, (819), 3 states have internal predecessors, (819), 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 20:22:11,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:11,452 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:11,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 20:22:11,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err8ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:11,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:11,452 INFO L85 PathProgramCache]: Analyzing trace with hash 1858910368, now seen corresponding path program 1 times [2022-12-13 20:22:11,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:11,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499499867] [2022-12-13 20:22:11,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:11,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:11,479 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 20:22:11,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:11,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499499867] [2022-12-13 20:22:11,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499499867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:11,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:11,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:22:11,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272521946] [2022-12-13 20:22:11,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:11,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:11,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:11,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:11,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:11,486 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 520 [2022-12-13 20:22:11,487 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 121 transitions, 358 flow. Second operand has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 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 20:22:11,488 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:11,488 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 520 [2022-12-13 20:22:11,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:15,705 INFO L130 PetriNetUnfolder]: 24043/52737 cut-off events. [2022-12-13 20:22:15,705 INFO L131 PetriNetUnfolder]: For 4671/5061 co-relation queries the response was YES. [2022-12-13 20:22:15,860 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104006 conditions, 52737 events. 24043/52737 cut-off events. For 4671/5061 co-relation queries the response was YES. Maximal size of possible extension queue 1019. Compared 553277 event pairs, 9668 based on Foata normal form. 273/45564 useless extension candidates. Maximal degree in co-relation 103994. Up to 21436 conditions per place. [2022-12-13 20:22:16,020 INFO L137 encePairwiseOnDemand]: 515/520 looper letters, 114 selfloop transitions, 4 changer transitions 0/177 dead transitions. [2022-12-13 20:22:16,021 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 177 transitions, 744 flow [2022-12-13 20:22:16,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:16,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:16,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 947 transitions. [2022-12-13 20:22:16,024 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.607051282051282 [2022-12-13 20:22:16,024 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 947 transitions. [2022-12-13 20:22:16,024 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 947 transitions. [2022-12-13 20:22:16,024 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:16,024 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 947 transitions. [2022-12-13 20:22:16,026 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 315.6666666666667) internal successors, (947), 3 states have internal predecessors, (947), 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 20:22:16,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:16,029 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:16,029 INFO L175 Difference]: Start difference. First operand has 116 places, 121 transitions, 358 flow. Second operand 3 states and 947 transitions. [2022-12-13 20:22:16,029 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 177 transitions, 744 flow [2022-12-13 20:22:16,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 177 transitions, 744 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:22:16,038 INFO L231 Difference]: Finished difference. Result has 120 places, 125 transitions, 392 flow [2022-12-13 20:22:16,038 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=392, PETRI_PLACES=120, PETRI_TRANSITIONS=125} [2022-12-13 20:22:16,039 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 1 predicate places. [2022-12-13 20:22:16,039 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 125 transitions, 392 flow [2022-12-13 20:22:16,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.0) internal successors, (858), 3 states have internal predecessors, (858), 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 20:22:16,039 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:16,039 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:16,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 20:22:16,040 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:16,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:16,040 INFO L85 PathProgramCache]: Analyzing trace with hash -252130931, now seen corresponding path program 1 times [2022-12-13 20:22:16,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:16,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805762938] [2022-12-13 20:22:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:16,100 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 20:22:16,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:16,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805762938] [2022-12-13 20:22:16,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805762938] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:16,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:16,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:22:16,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385900401] [2022-12-13 20:22:16,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:16,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:16,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:16,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:16,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:16,115 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 520 [2022-12-13 20:22:16,116 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 125 transitions, 392 flow. Second operand has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 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 20:22:16,116 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:16,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 520 [2022-12-13 20:22:16,117 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:22,239 INFO L130 PetriNetUnfolder]: 31937/75426 cut-off events. [2022-12-13 20:22:22,239 INFO L131 PetriNetUnfolder]: For 11817/12424 co-relation queries the response was YES. [2022-12-13 20:22:22,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151530 conditions, 75426 events. 31937/75426 cut-off events. For 11817/12424 co-relation queries the response was YES. Maximal size of possible extension queue 1524. Compared 876853 event pairs, 16182 based on Foata normal form. 168/67111 useless extension candidates. Maximal degree in co-relation 151516. Up to 38389 conditions per place. [2022-12-13 20:22:22,619 INFO L137 encePairwiseOnDemand]: 516/520 looper letters, 116 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2022-12-13 20:22:22,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 180 transitions, 793 flow [2022-12-13 20:22:22,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:22,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:22,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 943 transitions. [2022-12-13 20:22:22,622 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6044871794871794 [2022-12-13 20:22:22,622 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 943 transitions. [2022-12-13 20:22:22,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 943 transitions. [2022-12-13 20:22:22,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:22,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 943 transitions. [2022-12-13 20:22:22,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 314.3333333333333) internal successors, (943), 3 states have internal predecessors, (943), 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 20:22:22,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:22,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:22,626 INFO L175 Difference]: Start difference. First operand has 120 places, 125 transitions, 392 flow. Second operand 3 states and 943 transitions. [2022-12-13 20:22:22,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 180 transitions, 793 flow [2022-12-13 20:22:22,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 180 transitions, 779 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:22:22,753 INFO L231 Difference]: Finished difference. Result has 121 places, 126 transitions, 398 flow [2022-12-13 20:22:22,753 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=398, PETRI_PLACES=121, PETRI_TRANSITIONS=126} [2022-12-13 20:22:22,754 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 2 predicate places. [2022-12-13 20:22:22,754 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 126 transitions, 398 flow [2022-12-13 20:22:22,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.3333333333333) internal successors, (856), 3 states have internal predecessors, (856), 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 20:22:22,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:22,755 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:22,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 20:22:22,755 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:22,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:22,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1791651883, now seen corresponding path program 1 times [2022-12-13 20:22:22,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:22,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118727024] [2022-12-13 20:22:22,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:22,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:22,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:22,804 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 20:22:22,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:22,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118727024] [2022-12-13 20:22:22,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118727024] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:22,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:22,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:22:22,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940066151] [2022-12-13 20:22:22,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:22,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:22,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:22,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:22,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:22,814 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 520 [2022-12-13 20:22:22,815 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 126 transitions, 398 flow. Second operand has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 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 20:22:22,815 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:22,815 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 520 [2022-12-13 20:22:22,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:29,843 INFO L130 PetriNetUnfolder]: 33090/75815 cut-off events. [2022-12-13 20:22:29,844 INFO L131 PetriNetUnfolder]: For 11597/12178 co-relation queries the response was YES. [2022-12-13 20:22:30,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157229 conditions, 75815 events. 33090/75815 cut-off events. For 11597/12178 co-relation queries the response was YES. Maximal size of possible extension queue 1555. Compared 866274 event pairs, 20059 based on Foata normal form. 1633/70297 useless extension candidates. Maximal degree in co-relation 157214. Up to 51844 conditions per place. [2022-12-13 20:22:30,267 INFO L137 encePairwiseOnDemand]: 517/520 looper letters, 96 selfloop transitions, 3 changer transitions 0/161 dead transitions. [2022-12-13 20:22:30,268 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 161 transitions, 703 flow [2022-12-13 20:22:30,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:30,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:30,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 911 transitions. [2022-12-13 20:22:30,270 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.583974358974359 [2022-12-13 20:22:30,270 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 911 transitions. [2022-12-13 20:22:30,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 911 transitions. [2022-12-13 20:22:30,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:30,271 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 911 transitions. [2022-12-13 20:22:30,272 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 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 20:22:30,274 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:30,274 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:30,274 INFO L175 Difference]: Start difference. First operand has 121 places, 126 transitions, 398 flow. Second operand 3 states and 911 transitions. [2022-12-13 20:22:30,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 161 transitions, 703 flow [2022-12-13 20:22:30,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 161 transitions, 699 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:22:30,287 INFO L231 Difference]: Finished difference. Result has 123 places, 128 transitions, 419 flow [2022-12-13 20:22:30,287 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=419, PETRI_PLACES=123, PETRI_TRANSITIONS=128} [2022-12-13 20:22:30,288 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 4 predicate places. [2022-12-13 20:22:30,288 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 128 transitions, 419 flow [2022-12-13 20:22:30,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 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 20:22:30,288 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:30,289 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:30,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 20:22:30,289 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:30,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:30,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1860308605, now seen corresponding path program 1 times [2022-12-13 20:22:30,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:30,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022860080] [2022-12-13 20:22:30,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:30,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:30,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:30,323 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 20:22:30,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:30,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022860080] [2022-12-13 20:22:30,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022860080] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:30,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:30,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:22:30,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267387510] [2022-12-13 20:22:30,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:30,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:30,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:30,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:30,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:30,334 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 277 out of 520 [2022-12-13 20:22:30,335 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 128 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 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 20:22:30,335 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:30,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 277 of 520 [2022-12-13 20:22:30,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:36,834 INFO L130 PetriNetUnfolder]: 34137/78701 cut-off events. [2022-12-13 20:22:36,834 INFO L131 PetriNetUnfolder]: For 21331/21930 co-relation queries the response was YES. [2022-12-13 20:22:37,092 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169442 conditions, 78701 events. 34137/78701 cut-off events. For 21331/21930 co-relation queries the response was YES. Maximal size of possible extension queue 1543. Compared 902449 event pairs, 21402 based on Foata normal form. 1173/73951 useless extension candidates. Maximal degree in co-relation 169426. Up to 54812 conditions per place. [2022-12-13 20:22:37,333 INFO L137 encePairwiseOnDemand]: 517/520 looper letters, 95 selfloop transitions, 2 changer transitions 0/159 dead transitions. [2022-12-13 20:22:37,333 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 159 transitions, 722 flow [2022-12-13 20:22:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:37,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:37,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 907 transitions. [2022-12-13 20:22:37,336 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5814102564102565 [2022-12-13 20:22:37,336 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 907 transitions. [2022-12-13 20:22:37,336 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 907 transitions. [2022-12-13 20:22:37,336 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:37,336 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 907 transitions. [2022-12-13 20:22:37,338 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 302.3333333333333) internal successors, (907), 3 states have internal predecessors, (907), 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 20:22:37,340 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:37,341 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:37,341 INFO L175 Difference]: Start difference. First operand has 123 places, 128 transitions, 419 flow. Second operand 3 states and 907 transitions. [2022-12-13 20:22:37,341 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 159 transitions, 722 flow [2022-12-13 20:22:37,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 159 transitions, 716 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:22:37,421 INFO L231 Difference]: Finished difference. Result has 125 places, 129 transitions, 430 flow [2022-12-13 20:22:37,422 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=416, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=430, PETRI_PLACES=125, PETRI_TRANSITIONS=129} [2022-12-13 20:22:37,422 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 6 predicate places. [2022-12-13 20:22:37,422 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 129 transitions, 430 flow [2022-12-13 20:22:37,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.3333333333333) internal successors, (841), 3 states have internal predecessors, (841), 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 20:22:37,423 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:37,423 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 20:22:37,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 20:22:37,423 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t2Err7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:37,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:37,423 INFO L85 PathProgramCache]: Analyzing trace with hash -575785662, now seen corresponding path program 1 times [2022-12-13 20:22:37,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:37,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524500969] [2022-12-13 20:22:37,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:37,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:37,519 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 20:22:37,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:37,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524500969] [2022-12-13 20:22:37,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524500969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:37,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:37,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:22:37,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131596259] [2022-12-13 20:22:37,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:37,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:22:37,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:37,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:22:37,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:22:37,605 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 520 [2022-12-13 20:22:37,607 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 129 transitions, 430 flow. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 20:22:37,607 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:37,607 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 520 [2022-12-13 20:22:37,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:22:49,135 INFO L130 PetriNetUnfolder]: 62842/139226 cut-off events. [2022-12-13 20:22:49,135 INFO L131 PetriNetUnfolder]: For 45634/46955 co-relation queries the response was YES. [2022-12-13 20:22:49,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312504 conditions, 139226 events. 62842/139226 cut-off events. For 45634/46955 co-relation queries the response was YES. Maximal size of possible extension queue 2451. Compared 1661627 event pairs, 29981 based on Foata normal form. 442/129732 useless extension candidates. Maximal degree in co-relation 312487. Up to 60644 conditions per place. [2022-12-13 20:22:50,121 INFO L137 encePairwiseOnDemand]: 515/520 looper letters, 132 selfloop transitions, 8 changer transitions 0/195 dead transitions. [2022-12-13 20:22:50,121 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 195 transitions, 945 flow [2022-12-13 20:22:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:22:50,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:22:50,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 936 transitions. [2022-12-13 20:22:50,124 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6 [2022-12-13 20:22:50,124 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 936 transitions. [2022-12-13 20:22:50,124 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 936 transitions. [2022-12-13 20:22:50,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:22:50,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 936 transitions. [2022-12-13 20:22:50,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 312.0) internal successors, (936), 3 states have internal predecessors, (936), 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 20:22:50,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:50,129 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:22:50,129 INFO L175 Difference]: Start difference. First operand has 125 places, 129 transitions, 430 flow. Second operand 3 states and 936 transitions. [2022-12-13 20:22:50,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 195 transitions, 945 flow [2022-12-13 20:22:50,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 195 transitions, 941 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 20:22:50,538 INFO L231 Difference]: Finished difference. Result has 128 places, 136 transitions, 510 flow [2022-12-13 20:22:50,539 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=128, PETRI_TRANSITIONS=136} [2022-12-13 20:22:50,539 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 9 predicate places. [2022-12-13 20:22:50,539 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 136 transitions, 510 flow [2022-12-13 20:22:50,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 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 20:22:50,540 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:22:50,540 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:22:50,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 20:22:50,540 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:22:50,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:22:50,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1409960975, now seen corresponding path program 1 times [2022-12-13 20:22:50,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:22:50,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583027971] [2022-12-13 20:22:50,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:22:50,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:22:50,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:22:50,604 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 20:22:50,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:22:50,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583027971] [2022-12-13 20:22:50,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583027971] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:22:50,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:22:50,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:22:50,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450471379] [2022-12-13 20:22:50,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:22:50,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:22:50,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:22:50,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:22:50,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:22:50,617 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 279 out of 520 [2022-12-13 20:22:50,618 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 136 transitions, 510 flow. Second operand has 4 states, 4 states have (on average 282.5) internal successors, (1130), 4 states have internal predecessors, (1130), 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 20:22:50,619 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:22:50,619 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 279 of 520 [2022-12-13 20:22:50,619 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:23:03,760 INFO L130 PetriNetUnfolder]: 65793/152598 cut-off events. [2022-12-13 20:23:03,760 INFO L131 PetriNetUnfolder]: For 58905/61629 co-relation queries the response was YES. [2022-12-13 20:23:04,477 INFO L83 FinitePrefix]: Finished finitePrefix Result has 344367 conditions, 152598 events. 65793/152598 cut-off events. For 58905/61629 co-relation queries the response was YES. Maximal size of possible extension queue 3128. Compared 1921030 event pairs, 29414 based on Foata normal form. 1664/143960 useless extension candidates. Maximal degree in co-relation 344349. Up to 87448 conditions per place. [2022-12-13 20:23:04,893 INFO L137 encePairwiseOnDemand]: 515/520 looper letters, 140 selfloop transitions, 11 changer transitions 0/217 dead transitions. [2022-12-13 20:23:04,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 217 transitions, 1086 flow [2022-12-13 20:23:04,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:23:04,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:23:04,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1233 transitions. [2022-12-13 20:23:04,896 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5927884615384615 [2022-12-13 20:23:04,896 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1233 transitions. [2022-12-13 20:23:04,896 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1233 transitions. [2022-12-13 20:23:04,896 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:23:04,897 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1233 transitions. [2022-12-13 20:23:04,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 308.25) internal successors, (1233), 4 states have internal predecessors, (1233), 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 20:23:04,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 520.0) internal successors, (2600), 5 states have internal predecessors, (2600), 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 20:23:04,900 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 520.0) internal successors, (2600), 5 states have internal predecessors, (2600), 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 20:23:04,901 INFO L175 Difference]: Start difference. First operand has 128 places, 136 transitions, 510 flow. Second operand 4 states and 1233 transitions. [2022-12-13 20:23:04,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 217 transitions, 1086 flow [2022-12-13 20:23:05,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 217 transitions, 1066 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:23:05,370 INFO L231 Difference]: Finished difference. Result has 131 places, 146 transitions, 599 flow [2022-12-13 20:23:05,370 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=599, PETRI_PLACES=131, PETRI_TRANSITIONS=146} [2022-12-13 20:23:05,371 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 12 predicate places. [2022-12-13 20:23:05,371 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 146 transitions, 599 flow [2022-12-13 20:23:05,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 282.5) internal successors, (1130), 4 states have internal predecessors, (1130), 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 20:23:05,371 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:23:05,371 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:23:05,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 20:23:05,371 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:23:05,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:23:05,372 INFO L85 PathProgramCache]: Analyzing trace with hash -439719726, now seen corresponding path program 1 times [2022-12-13 20:23:05,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:23:05,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427463291] [2022-12-13 20:23:05,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:23:05,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:23:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:23:05,444 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 20:23:05,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:23:05,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427463291] [2022-12-13 20:23:05,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427463291] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:23:05,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:23:05,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:23:05,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294651400] [2022-12-13 20:23:05,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:23:05,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:23:05,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:23:05,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:23:05,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:23:05,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 520 [2022-12-13 20:23:05,516 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 146 transitions, 599 flow. Second operand has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 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 20:23:05,516 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:23:05,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 520 [2022-12-13 20:23:05,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:23:32,740 INFO L130 PetriNetUnfolder]: 159378/293517 cut-off events. [2022-12-13 20:23:32,740 INFO L131 PetriNetUnfolder]: For 234946/237601 co-relation queries the response was YES. [2022-12-13 20:23:34,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 771636 conditions, 293517 events. 159378/293517 cut-off events. For 234946/237601 co-relation queries the response was YES. Maximal size of possible extension queue 5096. Compared 3230664 event pairs, 96214 based on Foata normal form. 1487/274734 useless extension candidates. Maximal degree in co-relation 771616. Up to 234922 conditions per place. [2022-12-13 20:23:34,941 INFO L137 encePairwiseOnDemand]: 512/520 looper letters, 126 selfloop transitions, 16 changer transitions 0/187 dead transitions. [2022-12-13 20:23:34,941 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 187 transitions, 1067 flow [2022-12-13 20:23:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:23:34,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:23:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 892 transitions. [2022-12-13 20:23:34,944 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5717948717948718 [2022-12-13 20:23:34,944 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 892 transitions. [2022-12-13 20:23:34,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 892 transitions. [2022-12-13 20:23:34,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:23:34,945 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 892 transitions. [2022-12-13 20:23:34,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 297.3333333333333) internal successors, (892), 3 states have internal predecessors, (892), 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 20:23:34,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:23:34,949 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:23:34,949 INFO L175 Difference]: Start difference. First operand has 131 places, 146 transitions, 599 flow. Second operand 3 states and 892 transitions. [2022-12-13 20:23:34,949 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 187 transitions, 1067 flow [2022-12-13 20:23:41,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 187 transitions, 1067 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 20:23:41,559 INFO L231 Difference]: Finished difference. Result has 134 places, 152 transitions, 685 flow [2022-12-13 20:23:41,559 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=599, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=134, PETRI_TRANSITIONS=152} [2022-12-13 20:23:41,559 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 15 predicate places. [2022-12-13 20:23:41,560 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 152 transitions, 685 flow [2022-12-13 20:23:41,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 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 20:23:41,560 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:23:41,560 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:23:41,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 20:23:41,560 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t1Err11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:23:41,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:23:41,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1178490790, now seen corresponding path program 1 times [2022-12-13 20:23:41,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:23:41,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496136423] [2022-12-13 20:23:41,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:23:41,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:23:41,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:23:41,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:23:41,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:23:41,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496136423] [2022-12-13 20:23:41,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496136423] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:23:41,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:23:41,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:23:41,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763115677] [2022-12-13 20:23:41,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:23:41,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:23:41,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:23:41,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:23:41,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:23:41,597 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 280 out of 520 [2022-12-13 20:23:41,597 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 152 transitions, 685 flow. Second operand has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 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 20:23:41,598 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:23:41,598 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 280 of 520 [2022-12-13 20:23:41,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:24:00,680 INFO L130 PetriNetUnfolder]: 89123/196038 cut-off events. [2022-12-13 20:24:00,680 INFO L131 PetriNetUnfolder]: For 109040/120463 co-relation queries the response was YES. [2022-12-13 20:24:01,552 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478150 conditions, 196038 events. 89123/196038 cut-off events. For 109040/120463 co-relation queries the response was YES. Maximal size of possible extension queue 4227. Compared 2430917 event pairs, 34447 based on Foata normal form. 2277/181941 useless extension candidates. Maximal degree in co-relation 478128. Up to 97833 conditions per place. [2022-12-13 20:24:02,142 INFO L137 encePairwiseOnDemand]: 516/520 looper letters, 132 selfloop transitions, 3 changer transitions 0/205 dead transitions. [2022-12-13 20:24:02,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 205 transitions, 1175 flow [2022-12-13 20:24:02,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:24:02,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:24:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 929 transitions. [2022-12-13 20:24:02,145 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5955128205128205 [2022-12-13 20:24:02,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 929 transitions. [2022-12-13 20:24:02,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 929 transitions. [2022-12-13 20:24:02,146 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:24:02,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 929 transitions. [2022-12-13 20:24:02,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 309.6666666666667) internal successors, (929), 3 states have internal predecessors, (929), 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 20:24:02,148 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:24:02,149 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:24:02,149 INFO L175 Difference]: Start difference. First operand has 134 places, 152 transitions, 685 flow. Second operand 3 states and 929 transitions. [2022-12-13 20:24:02,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 205 transitions, 1175 flow [2022-12-13 20:24:03,354 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 205 transitions, 1153 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-12-13 20:24:03,356 INFO L231 Difference]: Finished difference. Result has 137 places, 154 transitions, 685 flow [2022-12-13 20:24:03,356 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=685, PETRI_PLACES=137, PETRI_TRANSITIONS=154} [2022-12-13 20:24:03,356 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 18 predicate places. [2022-12-13 20:24:03,356 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 154 transitions, 685 flow [2022-12-13 20:24:03,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.6666666666667) internal successors, (854), 3 states have internal predecessors, (854), 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 20:24:03,356 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:24:03,356 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:24:03,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 20:24:03,357 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting t1Err5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:24:03,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:24:03,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1955644533, now seen corresponding path program 1 times [2022-12-13 20:24:03,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:24:03,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648026207] [2022-12-13 20:24:03,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:24:03,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:24:03,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:24:03,507 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 20:24:03,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:24:03,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648026207] [2022-12-13 20:24:03,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648026207] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:24:03,507 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:24:03,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:24:03,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181526249] [2022-12-13 20:24:03,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:24:03,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 20:24:03,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:24:03,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 20:24:03,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:24:03,794 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 520 [2022-12-13 20:24:03,795 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 154 transitions, 685 flow. Second operand has 5 states, 5 states have (on average 267.4) internal successors, (1337), 5 states have internal predecessors, (1337), 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 20:24:03,795 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:24:03,795 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 520 [2022-12-13 20:24:03,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:24:36,878 INFO L130 PetriNetUnfolder]: 185636/341001 cut-off events. [2022-12-13 20:24:36,878 INFO L131 PetriNetUnfolder]: For 368924/371428 co-relation queries the response was YES. [2022-12-13 20:24:38,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955750 conditions, 341001 events. 185636/341001 cut-off events. For 368924/371428 co-relation queries the response was YES. Maximal size of possible extension queue 5543. Compared 3746859 event pairs, 110568 based on Foata normal form. 1459/321820 useless extension candidates. Maximal degree in co-relation 955727. Up to 270028 conditions per place. [2022-12-13 20:24:39,556 INFO L137 encePairwiseOnDemand]: 515/520 looper letters, 134 selfloop transitions, 15 changer transitions 0/196 dead transitions. [2022-12-13 20:24:39,556 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 196 transitions, 1183 flow [2022-12-13 20:24:39,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:24:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-12-13 20:24:39,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1147 transitions. [2022-12-13 20:24:39,559 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5514423076923077 [2022-12-13 20:24:39,559 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1147 transitions. [2022-12-13 20:24:39,559 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1147 transitions. [2022-12-13 20:24:39,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:24:39,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1147 transitions. [2022-12-13 20:24:39,561 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 286.75) internal successors, (1147), 4 states have internal predecessors, (1147), 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 20:24:39,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 520.0) internal successors, (2600), 5 states have internal predecessors, (2600), 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 20:24:39,563 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 520.0) internal successors, (2600), 5 states have internal predecessors, (2600), 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 20:24:39,563 INFO L175 Difference]: Start difference. First operand has 137 places, 154 transitions, 685 flow. Second operand 4 states and 1147 transitions. [2022-12-13 20:24:39,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 196 transitions, 1183 flow [2022-12-13 20:24:48,243 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 196 transitions, 1177 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:24:48,245 INFO L231 Difference]: Finished difference. Result has 139 places, 156 transitions, 739 flow [2022-12-13 20:24:48,245 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=679, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=139, PETRI_TRANSITIONS=156} [2022-12-13 20:24:48,246 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 20 predicate places. [2022-12-13 20:24:48,246 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 156 transitions, 739 flow [2022-12-13 20:24:48,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 267.4) internal successors, (1337), 5 states have internal predecessors, (1337), 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 20:24:48,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:24:48,246 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:24:48,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-12-13 20:24:48,247 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting t2Err9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:24:48,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:24:48,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1987778699, now seen corresponding path program 1 times [2022-12-13 20:24:48,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:24:48,247 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098733802] [2022-12-13 20:24:48,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:24:48,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:24:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:24:48,287 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 20:24:48,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:24:48,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098733802] [2022-12-13 20:24:48,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098733802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:24:48,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:24:48,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 20:24:48,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537173093] [2022-12-13 20:24:48,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:24:48,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 20:24:48,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:24:48,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 20:24:48,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 20:24:48,302 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 278 out of 520 [2022-12-13 20:24:48,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 156 transitions, 739 flow. Second operand has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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 20:24:48,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:24:48,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 278 of 520 [2022-12-13 20:24:48,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:25:08,714 INFO L130 PetriNetUnfolder]: 86747/193668 cut-off events. [2022-12-13 20:25:08,714 INFO L131 PetriNetUnfolder]: For 136425/152740 co-relation queries the response was YES. [2022-12-13 20:25:09,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485624 conditions, 193668 events. 86747/193668 cut-off events. For 136425/152740 co-relation queries the response was YES. Maximal size of possible extension queue 4139. Compared 2433175 event pairs, 49497 based on Foata normal form. 2366/181606 useless extension candidates. Maximal degree in co-relation 485600. Up to 138468 conditions per place. [2022-12-13 20:25:10,222 INFO L137 encePairwiseOnDemand]: 516/520 looper letters, 116 selfloop transitions, 4 changer transitions 0/194 dead transitions. [2022-12-13 20:25:10,222 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 194 transitions, 1133 flow [2022-12-13 20:25:10,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 20:25:10,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 20:25:10,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 915 transitions. [2022-12-13 20:25:10,225 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5865384615384616 [2022-12-13 20:25:10,225 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 915 transitions. [2022-12-13 20:25:10,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 915 transitions. [2022-12-13 20:25:10,225 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:25:10,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 915 transitions. [2022-12-13 20:25:10,227 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 305.0) internal successors, (915), 3 states have internal predecessors, (915), 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 20:25:10,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:25:10,229 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 520.0) internal successors, (2080), 4 states have internal predecessors, (2080), 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 20:25:10,229 INFO L175 Difference]: Start difference. First operand has 139 places, 156 transitions, 739 flow. Second operand 3 states and 915 transitions. [2022-12-13 20:25:10,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 194 transitions, 1133 flow [2022-12-13 20:25:11,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 194 transitions, 1115 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 20:25:11,257 INFO L231 Difference]: Finished difference. Result has 140 places, 158 transitions, 747 flow [2022-12-13 20:25:11,257 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=747, PETRI_PLACES=140, PETRI_TRANSITIONS=158} [2022-12-13 20:25:11,257 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 21 predicate places. [2022-12-13 20:25:11,257 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 158 transitions, 747 flow [2022-12-13 20:25:11,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 284.0) internal successors, (852), 3 states have internal predecessors, (852), 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 20:25:11,258 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:25:11,258 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:25:11,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-12-13 20:25:11,258 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:25:11,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:25:11,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1488509899, now seen corresponding path program 1 times [2022-12-13 20:25:11,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:25:11,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917234405] [2022-12-13 20:25:11,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:11,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:25:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:11,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:25:11,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917234405] [2022-12-13 20:25:11,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917234405] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 20:25:11,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956612911] [2022-12-13 20:25:11,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:25:11,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 20:25:11,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:25:11,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 20:25:11,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 20:25:11,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:25:11,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 20:25:11,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:25:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:11,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 20:25:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:25:11,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956612911] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 20:25:11,470 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 20:25:11,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 20:25:11,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954064934] [2022-12-13 20:25:11,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 20:25:11,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 20:25:11,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:25:11,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 20:25:11,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 20:25:11,500 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 281 out of 520 [2022-12-13 20:25:11,501 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 158 transitions, 747 flow. Second operand has 7 states, 7 states have (on average 284.57142857142856) internal successors, (1992), 7 states have internal predecessors, (1992), 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 20:25:11,501 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:25:11,501 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 281 of 520 [2022-12-13 20:25:11,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:26:07,379 INFO L130 PetriNetUnfolder]: 218630/498077 cut-off events. [2022-12-13 20:26:07,380 INFO L131 PetriNetUnfolder]: For 383807/409245 co-relation queries the response was YES. [2022-12-13 20:26:10,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1259183 conditions, 498077 events. 218630/498077 cut-off events. For 383807/409245 co-relation queries the response was YES. Maximal size of possible extension queue 8559. Compared 6875601 event pairs, 54130 based on Foata normal form. 13197/478172 useless extension candidates. Maximal degree in co-relation 1259158. Up to 93456 conditions per place. [2022-12-13 20:26:11,858 INFO L137 encePairwiseOnDemand]: 515/520 looper letters, 356 selfloop transitions, 25 changer transitions 0/456 dead transitions. [2022-12-13 20:26:11,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 456 transitions, 2870 flow [2022-12-13 20:26:11,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:26:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:26:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2206 transitions. [2022-12-13 20:26:11,863 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.606043956043956 [2022-12-13 20:26:11,863 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2206 transitions. [2022-12-13 20:26:11,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2206 transitions. [2022-12-13 20:26:11,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:26:11,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2206 transitions. [2022-12-13 20:26:11,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 315.14285714285717) internal successors, (2206), 7 states have internal predecessors, (2206), 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 20:26:11,870 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 520.0) internal successors, (4160), 8 states have internal predecessors, (4160), 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 20:26:11,870 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 520.0) internal successors, (4160), 8 states have internal predecessors, (4160), 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 20:26:11,870 INFO L175 Difference]: Start difference. First operand has 140 places, 158 transitions, 747 flow. Second operand 7 states and 2206 transitions. [2022-12-13 20:26:11,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 456 transitions, 2870 flow [2022-12-13 20:26:18,767 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 456 transitions, 2837 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-12-13 20:26:18,770 INFO L231 Difference]: Finished difference. Result has 149 places, 174 transitions, 946 flow [2022-12-13 20:26:18,770 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=520, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=946, PETRI_PLACES=149, PETRI_TRANSITIONS=174} [2022-12-13 20:26:18,771 INFO L288 CegarLoopForPetriNet]: 119 programPoint places, 30 predicate places. [2022-12-13 20:26:18,771 INFO L495 AbstractCegarLoop]: Abstraction has has 149 places, 174 transitions, 946 flow [2022-12-13 20:26:18,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 284.57142857142856) internal successors, (1992), 7 states have internal predecessors, (1992), 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 20:26:18,771 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 20:26:18,771 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:26:18,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 20:26:18,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_480170c2-db1b-422e-8091-aaa9741d300d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 20:26:18,973 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 57 more)] === [2022-12-13 20:26:18,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:26:18,974 INFO L85 PathProgramCache]: Analyzing trace with hash 922462134, now seen corresponding path program 1 times [2022-12-13 20:26:18,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:26:18,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737837647] [2022-12-13 20:26:18,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:26:18,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:26:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:26:19,285 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 20:26:19,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:26:19,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737837647] [2022-12-13 20:26:19,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737837647] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:26:19,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:26:19,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-13 20:26:19,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217929531] [2022-12-13 20:26:19,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:26:19,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 20:26:19,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:26:19,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 20:26:19,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 20:26:19,496 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 275 out of 520 [2022-12-13 20:26:19,497 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 174 transitions, 946 flow. Second operand has 8 states, 8 states have (on average 277.5) internal successors, (2220), 8 states have internal predecessors, (2220), 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 20:26:19,497 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 20:26:19,497 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 275 of 520 [2022-12-13 20:26:19,497 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 20:28:03,569 INFO L130 PetriNetUnfolder]: 524120/886392 cut-off events. [2022-12-13 20:28:03,569 INFO L131 PetriNetUnfolder]: For 1215344/1237607 co-relation queries the response was YES. [2022-12-13 20:28:08,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2724248 conditions, 886392 events. 524120/886392 cut-off events. For 1215344/1237607 co-relation queries the response was YES. Maximal size of possible extension queue 12279. Compared 9822652 event pairs, 103783 based on Foata normal form. 32729/876934 useless extension candidates. Maximal degree in co-relation 2724220. Up to 276486 conditions per place. [2022-12-13 20:28:11,991 INFO L137 encePairwiseOnDemand]: 514/520 looper letters, 485 selfloop transitions, 12 changer transitions 0/548 dead transitions. [2022-12-13 20:28:11,991 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 548 transitions, 4250 flow [2022-12-13 20:28:11,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 20:28:11,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 20:28:11,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2163 transitions. [2022-12-13 20:28:11,999 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5942307692307692 [2022-12-13 20:28:11,999 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2163 transitions. [2022-12-13 20:28:11,999 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2163 transitions. [2022-12-13 20:28:12,002 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 20:28:12,002 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2163 transitions. [2022-12-13 20:28:12,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 309.0) internal successors, (2163), 7 states have internal predecessors, (2163), 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 20:28:12,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 520.0) internal successors, (4160), 8 states have internal predecessors, (4160), 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 20:28:12,013 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 520.0) internal successors, (4160), 8 states have internal predecessors, (4160), 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 20:28:12,014 INFO L175 Difference]: Start difference. First operand has 149 places, 174 transitions, 946 flow. Second operand 7 states and 2163 transitions. [2022-12-13 20:28:12,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 548 transitions, 4250 flow