./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF --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 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:13:26,661 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:13:26,664 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:13:26,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:13:26,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:13:26,750 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:13:26,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:13:26,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:13:26,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:13:26,771 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:13:26,772 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:13:26,774 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:13:26,775 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:13:26,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:13:26,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:13:26,788 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:13:26,790 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:13:26,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:13:26,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:13:26,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:13:26,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:13:26,808 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:13:26,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:13:26,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:13:26,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:13:26,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:13:26,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:13:26,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:13:26,826 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:13:26,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:13:26,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:13:26,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:13:26,833 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:13:26,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:13:26,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:13:26,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:13:26,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:13:26,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:13:26,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:13:26,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:13:26,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:13:26,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/config/svcomp-DataRace-32bit-Automizer_Default.epf [2021-11-20 07:13:26,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:13:26,901 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:13:26,902 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:13:26,902 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:13:26,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:13:26,911 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:13:26,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:13:26,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:13:26,913 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:13:26,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:13:26,914 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:13:26,914 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:13:26,915 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:13:26,915 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:13:26,915 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:13:26,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:13:26,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:13:26,916 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:13:26,916 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2021-11-20 07:13:26,917 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:13:26,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:13:26,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:13:26,917 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:13:26,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:13:26,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:13:26,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:13:26,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:13:26,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:13:26,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:13:26,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:13:26,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:13:26,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:13:26,922 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:13:26,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:13:26,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:13:26,923 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:13:26,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02b1c265b98bd14cc97fe77543b4e06699576e2091fa3d4102d013e6b3937418 [2021-11-20 07:13:27,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:13:27,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:13:27,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:13:27,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:13:27,247 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:13:27,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2021-11-20 07:13:27,316 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/data/1054663ab/6aa99241e109459eb6c63a9f511c4e04/FLAG7d8c4a399 [2021-11-20 07:13:28,138 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:13:28,139 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i [2021-11-20 07:13:28,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/data/1054663ab/6aa99241e109459eb6c63a9f511c4e04/FLAG7d8c4a399 [2021-11-20 07:13:28,251 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/data/1054663ab/6aa99241e109459eb6c63a9f511c4e04 [2021-11-20 07:13:28,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:13:28,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:13:28,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:13:28,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:13:28,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:13:28,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:13:28" (1/1) ... [2021-11-20 07:13:28,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9da9f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:28, skipping insertion in model container [2021-11-20 07:13:28,266 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:13:28" (1/1) ... [2021-11-20 07:13:28,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:13:28,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:13:28,627 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-20 07:13:29,277 WARN L230 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_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-11-20 07:13:29,328 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:13:29,337 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:13:29,351 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-11-20 07:13:29,429 WARN L230 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_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/sv-benchmarks/c/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-11-20 07:13:29,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:13:29,638 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:13:29,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29 WrapperNode [2021-11-20 07:13:29,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:13:29,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:13:29,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:13:29,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:13:29,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,792 INFO L137 Inliner]: procedures = 468, calls = 52, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 206 [2021-11-20 07:13:29,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:13:29,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:13:29,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:13:29,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:13:29,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:13:29,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:13:29,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:13:29,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:13:29,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (1/1) ... [2021-11-20 07:13:29,904 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:13:29,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:13:29,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:13:29,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f29c7a1-8e6e-467a-b51c-bb8044edb80c/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:13:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-11-20 07:13:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:13:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-11-20 07:13:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:13:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:13:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:13:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:13:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:13:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-11-20 07:13:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-11-20 07:13:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:13:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:13:30,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:13:30,028 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-20 07:13:30,455 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:13:30,457 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:13:30,957 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:13:31,116 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:13:31,116 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:13:31,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:13:31 BoogieIcfgContainer [2021-11-20 07:13:31,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:13:31,127 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:13:31,127 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:13:31,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:13:31,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:13:28" (1/3) ... [2021-11-20 07:13:31,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86f271b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:13:31, skipping insertion in model container [2021-11-20 07:13:31,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:13:29" (2/3) ... [2021-11-20 07:13:31,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@86f271b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:13:31, skipping insertion in model container [2021-11-20 07:13:31,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:13:31" (3/3) ... [2021-11-20 07:13:31,139 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-11-20 07:13:31,146 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-20 07:13:31,149 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:13:31,149 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2021-11-20 07:13:31,149 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-20 07:13:31,237 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,238 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,238 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,238 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,238 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,239 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,239 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,239 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,242 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,242 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,243 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,243 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,243 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,244 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,244 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,244 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,245 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,250 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,250 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,250 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,250 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,251 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,251 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,251 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,251 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,251 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,252 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,252 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,252 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,252 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,253 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,253 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,253 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,253 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,254 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,254 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,254 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,254 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,254 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,255 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,255 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,255 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,255 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,256 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,256 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,258 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,259 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,259 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,259 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,259 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,260 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,260 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,260 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,260 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,260 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,261 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,261 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,261 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,262 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,262 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,262 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,263 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,263 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,263 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,263 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,264 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,264 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,264 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,265 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,265 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,266 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,266 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,266 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,266 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,266 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,266 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,267 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,268 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,272 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,272 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,272 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,273 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,274 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,275 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,281 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,281 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,281 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,282 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,282 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,283 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,283 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,284 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,284 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,285 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,285 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,285 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,286 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,286 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,287 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,287 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,287 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,287 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,287 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,288 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,288 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,288 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,288 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,288 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,289 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,289 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,289 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,289 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,289 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,290 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,290 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,291 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,294 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,295 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,295 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,295 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,307 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,307 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,307 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,307 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,308 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,308 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,308 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,308 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,308 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,309 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,309 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,309 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,311 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,311 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,311 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,311 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,311 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,312 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,312 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,312 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,312 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,312 WARN L322 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,313 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,313 WARN L322 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-20 07:13:31,325 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-20 07:13:31,414 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:13:31,425 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:13:31,426 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-20 07:13:31,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 275 places, 277 transitions, 570 flow [2021-11-20 07:13:31,593 INFO L129 PetriNetUnfolder]: 10/354 cut-off events. [2021-11-20 07:13:31,593 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-20 07:13:31,599 INFO L84 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 354 events. 10/354 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 581 event pairs, 0 based on Foata normal form. 0/316 useless extension candidates. Maximal degree in co-relation 206. Up to 4 conditions per place. [2021-11-20 07:13:31,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 275 places, 277 transitions, 570 flow [2021-11-20 07:13:31,611 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 273 places, 274 transitions, 560 flow [2021-11-20 07:13:31,621 INFO L129 PetriNetUnfolder]: 0/43 cut-off events. [2021-11-20 07:13:31,621 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-11-20 07:13:31,621 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:31,622 INFO L254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:31,623 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:31,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:31,629 INFO L85 PathProgramCache]: Analyzing trace with hash -917232987, now seen corresponding path program 1 times [2021-11-20 07:13:31,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:31,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475318512] [2021-11-20 07:13:31,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:31,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:32,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:32,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:32,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475318512] [2021-11-20 07:13:32,306 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475318512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:32,306 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:32,307 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:32,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865633443] [2021-11-20 07:13:32,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:32,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:13:32,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:32,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:13:32,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:13:32,362 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 277 [2021-11-20 07:13:32,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 274 transitions, 560 flow. Second operand has 6 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 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) [2021-11-20 07:13:32,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:32,371 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 277 [2021-11-20 07:13:32,373 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:33,585 INFO L129 PetriNetUnfolder]: 754/2155 cut-off events. [2021-11-20 07:13:33,587 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2021-11-20 07:13:33,603 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3531 conditions, 2155 events. 754/2155 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 13611 event pairs, 753 based on Foata normal form. 38/2016 useless extension candidates. Maximal degree in co-relation 3126. Up to 1353 conditions per place. [2021-11-20 07:13:33,625 INFO L132 encePairwiseOnDemand]: 259/277 looper letters, 86 selfloop transitions, 5 changer transitions 4/255 dead transitions. [2021-11-20 07:13:33,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 255 transitions, 704 flow [2021-11-20 07:13:33,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:33,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1106 transitions. [2021-11-20 07:13:33,654 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6654632972322503 [2021-11-20 07:13:33,655 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1106 transitions. [2021-11-20 07:13:33,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1106 transitions. [2021-11-20 07:13:33,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:33,667 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1106 transitions. [2021-11-20 07:13:33,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 184.33333333333334) internal successors, (1106), 6 states have internal predecessors, (1106), 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) [2021-11-20 07:13:33,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:33,703 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:33,706 INFO L186 Difference]: Start difference. First operand has 273 places, 274 transitions, 560 flow. Second operand 6 states and 1106 transitions. [2021-11-20 07:13:33,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 255 transitions, 704 flow [2021-11-20 07:13:33,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 255 transitions, 696 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-20 07:13:33,731 INFO L242 Difference]: Finished difference. Result has 261 places, 251 transitions, 516 flow [2021-11-20 07:13:33,734 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=516, PETRI_PLACES=261, PETRI_TRANSITIONS=251} [2021-11-20 07:13:33,740 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, -12 predicate places. [2021-11-20 07:13:33,740 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 251 transitions, 516 flow [2021-11-20 07:13:33,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.66666666666666) internal successors, (1012), 6 states have internal predecessors, (1012), 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) [2021-11-20 07:13:33,742 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:33,742 INFO L254 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, 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, 1] [2021-11-20 07:13:33,743 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:13:33,743 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:33,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:33,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1431909143, now seen corresponding path program 1 times [2021-11-20 07:13:33,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:33,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011429506] [2021-11-20 07:13:33,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:33,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:33,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:34,040 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:34,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011429506] [2021-11-20 07:13:34,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011429506] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:34,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:34,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:34,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300445610] [2021-11-20 07:13:34,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:34,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:13:34,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:34,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:13:34,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:13:34,048 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 167 out of 277 [2021-11-20 07:13:34,051 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 251 transitions, 516 flow. Second operand has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 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) [2021-11-20 07:13:34,051 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:34,051 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 167 of 277 [2021-11-20 07:13:34,051 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:35,083 INFO L129 PetriNetUnfolder]: 754/2150 cut-off events. [2021-11-20 07:13:35,083 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-20 07:13:35,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3519 conditions, 2150 events. 754/2150 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 13556 event pairs, 753 based on Foata normal form. 0/1978 useless extension candidates. Maximal degree in co-relation 3458. Up to 1352 conditions per place. [2021-11-20 07:13:35,109 INFO L132 encePairwiseOnDemand]: 271/277 looper letters, 85 selfloop transitions, 5 changer transitions 0/250 dead transitions. [2021-11-20 07:13:35,110 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 250 transitions, 694 flow [2021-11-20 07:13:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:35,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1093 transitions. [2021-11-20 07:13:35,116 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6576413959085439 [2021-11-20 07:13:35,116 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1093 transitions. [2021-11-20 07:13:35,117 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1093 transitions. [2021-11-20 07:13:35,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:35,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1093 transitions. [2021-11-20 07:13:35,125 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 182.16666666666666) internal successors, (1093), 6 states have internal predecessors, (1093), 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) [2021-11-20 07:13:35,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:35,134 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:35,134 INFO L186 Difference]: Start difference. First operand has 261 places, 251 transitions, 516 flow. Second operand 6 states and 1093 transitions. [2021-11-20 07:13:35,134 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 250 transitions, 694 flow [2021-11-20 07:13:35,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 250 transitions, 684 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-20 07:13:35,151 INFO L242 Difference]: Finished difference. Result has 256 places, 250 transitions, 514 flow [2021-11-20 07:13:35,152 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=504, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=514, PETRI_PLACES=256, PETRI_TRANSITIONS=250} [2021-11-20 07:13:35,153 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, -17 predicate places. [2021-11-20 07:13:35,154 INFO L470 AbstractCegarLoop]: Abstraction has has 256 places, 250 transitions, 514 flow [2021-11-20 07:13:35,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.66666666666666) internal successors, (1018), 6 states have internal predecessors, (1018), 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) [2021-11-20 07:13:35,155 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:35,156 INFO L254 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, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:35,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:13:35,157 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:35,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:35,160 INFO L85 PathProgramCache]: Analyzing trace with hash -561567241, now seen corresponding path program 1 times [2021-11-20 07:13:35,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:35,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210948761] [2021-11-20 07:13:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:35,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:35,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:35,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:35,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210948761] [2021-11-20 07:13:35,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210948761] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:35,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:35,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:35,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674300696] [2021-11-20 07:13:35,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:35,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:13:35,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:35,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:13:35,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:13:35,522 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 277 [2021-11-20 07:13:35,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 250 transitions, 514 flow. Second operand has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 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) [2021-11-20 07:13:35,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:35,525 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 277 [2021-11-20 07:13:35,525 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:36,298 INFO L129 PetriNetUnfolder]: 754/2150 cut-off events. [2021-11-20 07:13:36,298 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-11-20 07:13:36,304 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3517 conditions, 2150 events. 754/2150 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 13850 event pairs, 624 based on Foata normal form. 0/2002 useless extension candidates. Maximal degree in co-relation 3442. Up to 1328 conditions per place. [2021-11-20 07:13:36,320 INFO L132 encePairwiseOnDemand]: 269/277 looper letters, 90 selfloop transitions, 7 changer transitions 0/259 dead transitions. [2021-11-20 07:13:36,320 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 259 transitions, 727 flow [2021-11-20 07:13:36,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:36,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:36,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1112 transitions. [2021-11-20 07:13:36,325 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6690734055354994 [2021-11-20 07:13:36,326 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1112 transitions. [2021-11-20 07:13:36,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1112 transitions. [2021-11-20 07:13:36,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:36,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1112 transitions. [2021-11-20 07:13:36,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.33333333333334) internal successors, (1112), 6 states have internal predecessors, (1112), 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) [2021-11-20 07:13:36,337 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:36,339 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:36,339 INFO L186 Difference]: Start difference. First operand has 256 places, 250 transitions, 514 flow. Second operand 6 states and 1112 transitions. [2021-11-20 07:13:36,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 259 transitions, 727 flow [2021-11-20 07:13:36,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 259 transitions, 717 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-20 07:13:36,349 INFO L242 Difference]: Finished difference. Result has 256 places, 252 transitions, 532 flow [2021-11-20 07:13:36,350 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=532, PETRI_PLACES=256, PETRI_TRANSITIONS=252} [2021-11-20 07:13:36,352 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, -17 predicate places. [2021-11-20 07:13:36,353 INFO L470 AbstractCegarLoop]: Abstraction has has 256 places, 252 transitions, 532 flow [2021-11-20 07:13:36,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.5) internal successors, (1035), 6 states have internal predecessors, (1035), 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) [2021-11-20 07:13:36,354 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:36,354 INFO L254 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:36,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:13:36,354 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:36,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:36,356 INFO L85 PathProgramCache]: Analyzing trace with hash -1692732083, now seen corresponding path program 1 times [2021-11-20 07:13:36,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:36,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603145583] [2021-11-20 07:13:36,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:36,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:36,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:36,635 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:36,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603145583] [2021-11-20 07:13:36,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603145583] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:36,636 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:36,636 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:36,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113091844] [2021-11-20 07:13:36,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:36,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:13:36,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:36,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:13:36,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:13:36,647 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 277 [2021-11-20 07:13:36,649 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 252 transitions, 532 flow. Second operand has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 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) [2021-11-20 07:13:36,649 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:36,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 277 [2021-11-20 07:13:36,650 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:37,457 INFO L129 PetriNetUnfolder]: 754/2149 cut-off events. [2021-11-20 07:13:37,457 INFO L130 PetriNetUnfolder]: For 241/255 co-relation queries the response was YES. [2021-11-20 07:13:37,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3806 conditions, 2149 events. 754/2149 cut-off events. For 241/255 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 13826 event pairs, 624 based on Foata normal form. 2/2004 useless extension candidates. Maximal degree in co-relation 2633. Up to 1334 conditions per place. [2021-11-20 07:13:37,480 INFO L132 encePairwiseOnDemand]: 269/277 looper letters, 89 selfloop transitions, 7 changer transitions 0/258 dead transitions. [2021-11-20 07:13:37,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 258 transitions, 737 flow [2021-11-20 07:13:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:37,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:37,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1111 transitions. [2021-11-20 07:13:37,486 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6684717208182912 [2021-11-20 07:13:37,487 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1111 transitions. [2021-11-20 07:13:37,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1111 transitions. [2021-11-20 07:13:37,488 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:37,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1111 transitions. [2021-11-20 07:13:37,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 185.16666666666666) internal successors, (1111), 6 states have internal predecessors, (1111), 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) [2021-11-20 07:13:37,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:37,499 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:37,499 INFO L186 Difference]: Start difference. First operand has 256 places, 252 transitions, 532 flow. Second operand 6 states and 1111 transitions. [2021-11-20 07:13:37,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 258 transitions, 737 flow [2021-11-20 07:13:37,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 258 transitions, 727 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-11-20 07:13:37,508 INFO L242 Difference]: Finished difference. Result has 256 places, 251 transitions, 534 flow [2021-11-20 07:13:37,509 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=534, PETRI_PLACES=256, PETRI_TRANSITIONS=251} [2021-11-20 07:13:37,510 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, -17 predicate places. [2021-11-20 07:13:37,510 INFO L470 AbstractCegarLoop]: Abstraction has has 256 places, 251 transitions, 534 flow [2021-11-20 07:13:37,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.5) internal successors, (1041), 6 states have internal predecessors, (1041), 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) [2021-11-20 07:13:37,511 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:37,512 INFO L254 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:37,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:13:37,512 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:37,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:37,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1124810628, now seen corresponding path program 1 times [2021-11-20 07:13:37,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:37,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574876166] [2021-11-20 07:13:37,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:37,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:37,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:37,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574876166] [2021-11-20 07:13:37,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574876166] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:37,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:37,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:13:37,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577518647] [2021-11-20 07:13:37,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:37,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:13:37,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:37,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:13:37,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:13:37,680 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 277 [2021-11-20 07:13:37,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 251 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 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) [2021-11-20 07:13:37,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:37,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 277 [2021-11-20 07:13:37,682 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:37,857 INFO L129 PetriNetUnfolder]: 85/562 cut-off events. [2021-11-20 07:13:37,858 INFO L130 PetriNetUnfolder]: For 56/240 co-relation queries the response was YES. [2021-11-20 07:13:37,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 809 conditions, 562 events. 85/562 cut-off events. For 56/240 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 2233 event pairs, 72 based on Foata normal form. 0/497 useless extension candidates. Maximal degree in co-relation 273. Up to 176 conditions per place. [2021-11-20 07:13:37,868 INFO L132 encePairwiseOnDemand]: 274/277 looper letters, 21 selfloop transitions, 2 changer transitions 0/250 dead transitions. [2021-11-20 07:13:37,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 250 transitions, 578 flow [2021-11-20 07:13:37,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:13:37,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 07:13:37,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 733 transitions. [2021-11-20 07:13:37,872 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8820697954271961 [2021-11-20 07:13:37,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 733 transitions. [2021-11-20 07:13:37,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 733 transitions. [2021-11-20 07:13:37,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:37,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 733 transitions. [2021-11-20 07:13:37,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 244.33333333333334) internal successors, (733), 3 states have internal predecessors, (733), 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) [2021-11-20 07:13:37,879 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2021-11-20 07:13:37,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2021-11-20 07:13:37,880 INFO L186 Difference]: Start difference. First operand has 256 places, 251 transitions, 534 flow. Second operand 3 states and 733 transitions. [2021-11-20 07:13:37,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 250 transitions, 578 flow [2021-11-20 07:13:37,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 250 transitions, 564 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-20 07:13:37,888 INFO L242 Difference]: Finished difference. Result has 252 places, 250 transitions, 522 flow [2021-11-20 07:13:37,889 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=248, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=522, PETRI_PLACES=252, PETRI_TRANSITIONS=250} [2021-11-20 07:13:37,892 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, -21 predicate places. [2021-11-20 07:13:37,892 INFO L470 AbstractCegarLoop]: Abstraction has has 252 places, 250 transitions, 522 flow [2021-11-20 07:13:37,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 238.33333333333334) internal successors, (715), 3 states have internal predecessors, (715), 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) [2021-11-20 07:13:37,894 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:37,894 INFO L254 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:37,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:13:37,894 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting my_callbackErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:37,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:37,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1006947150, now seen corresponding path program 1 times [2021-11-20 07:13:37,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:37,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486864767] [2021-11-20 07:13:37,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:37,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:38,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:38,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:38,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486864767] [2021-11-20 07:13:38,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486864767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:38,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:38,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:13:38,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796256621] [2021-11-20 07:13:38,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:38,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 07:13:38,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:38,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:13:38,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:13:38,040 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 277 [2021-11-20 07:13:38,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 250 transitions, 522 flow. Second operand has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 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) [2021-11-20 07:13:38,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:38,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 277 [2021-11-20 07:13:38,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:38,221 INFO L129 PetriNetUnfolder]: 64/646 cut-off events. [2021-11-20 07:13:38,221 INFO L130 PetriNetUnfolder]: For 32/111 co-relation queries the response was YES. [2021-11-20 07:13:38,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 832 conditions, 646 events. 64/646 cut-off events. For 32/111 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2400 event pairs, 44 based on Foata normal form. 1/596 useless extension candidates. Maximal degree in co-relation 658. Up to 130 conditions per place. [2021-11-20 07:13:38,229 INFO L132 encePairwiseOnDemand]: 273/277 looper letters, 19 selfloop transitions, 2 changer transitions 0/251 dead transitions. [2021-11-20 07:13:38,230 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 251 transitions, 567 flow [2021-11-20 07:13:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:13:38,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-11-20 07:13:38,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 741 transitions. [2021-11-20 07:13:38,233 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8916967509025271 [2021-11-20 07:13:38,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 741 transitions. [2021-11-20 07:13:38,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 741 transitions. [2021-11-20 07:13:38,234 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:38,235 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 741 transitions. [2021-11-20 07:13:38,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:13:38,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2021-11-20 07:13:38,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 277.0) internal successors, (1108), 4 states have internal predecessors, (1108), 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) [2021-11-20 07:13:38,243 INFO L186 Difference]: Start difference. First operand has 252 places, 250 transitions, 522 flow. Second operand 3 states and 741 transitions. [2021-11-20 07:13:38,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 251 transitions, 567 flow [2021-11-20 07:13:38,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 251 transitions, 563 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-11-20 07:13:38,253 INFO L242 Difference]: Finished difference. Result has 251 places, 250 transitions, 528 flow [2021-11-20 07:13:38,254 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=528, PETRI_PLACES=251, PETRI_TRANSITIONS=250} [2021-11-20 07:13:38,256 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, -22 predicate places. [2021-11-20 07:13:38,257 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 250 transitions, 528 flow [2021-11-20 07:13:38,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 241.66666666666666) internal successors, (725), 3 states have internal predecessors, (725), 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) [2021-11-20 07:13:38,257 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:38,258 INFO L254 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:38,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:13:38,258 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:38,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:38,259 INFO L85 PathProgramCache]: Analyzing trace with hash -60012088, now seen corresponding path program 1 times [2021-11-20 07:13:38,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:38,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157528099] [2021-11-20 07:13:38,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:38,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:38,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:38,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157528099] [2021-11-20 07:13:38,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157528099] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:38,486 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:38,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:38,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492375047] [2021-11-20 07:13:38,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:38,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:13:38,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:38,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:13:38,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:13:38,496 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 277 [2021-11-20 07:13:38,498 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 250 transitions, 528 flow. Second operand has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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) [2021-11-20 07:13:38,498 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:38,498 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 277 [2021-11-20 07:13:38,498 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:39,682 INFO L129 PetriNetUnfolder]: 1204/3114 cut-off events. [2021-11-20 07:13:39,682 INFO L130 PetriNetUnfolder]: For 361/361 co-relation queries the response was YES. [2021-11-20 07:13:39,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5738 conditions, 3114 events. 1204/3114 cut-off events. For 361/361 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 20724 event pairs, 927 based on Foata normal form. 0/2893 useless extension candidates. Maximal degree in co-relation 4811. Up to 2069 conditions per place. [2021-11-20 07:13:39,717 INFO L132 encePairwiseOnDemand]: 264/277 looper letters, 93 selfloop transitions, 31 changer transitions 0/279 dead transitions. [2021-11-20 07:13:39,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 279 transitions, 850 flow [2021-11-20 07:13:39,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:39,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:39,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1100 transitions. [2021-11-20 07:13:39,723 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6618531889290012 [2021-11-20 07:13:39,723 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1100 transitions. [2021-11-20 07:13:39,724 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1100 transitions. [2021-11-20 07:13:39,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:39,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1100 transitions. [2021-11-20 07:13:39,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 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) [2021-11-20 07:13:39,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:39,736 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:39,737 INFO L186 Difference]: Start difference. First operand has 251 places, 250 transitions, 528 flow. Second operand 6 states and 1100 transitions. [2021-11-20 07:13:39,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 279 transitions, 850 flow [2021-11-20 07:13:39,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 279 transitions, 850 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-11-20 07:13:39,753 INFO L242 Difference]: Finished difference. Result has 261 places, 279 transitions, 750 flow [2021-11-20 07:13:39,754 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=750, PETRI_PLACES=261, PETRI_TRANSITIONS=279} [2021-11-20 07:13:39,755 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, -12 predicate places. [2021-11-20 07:13:39,755 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 279 transitions, 750 flow [2021-11-20 07:13:39,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 168.0) internal successors, (1008), 6 states have internal predecessors, (1008), 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) [2021-11-20 07:13:39,756 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:39,757 INFO L254 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, 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, 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, 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] [2021-11-20 07:13:39,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:13:39,757 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:39,758 INFO L85 PathProgramCache]: Analyzing trace with hash 744958798, now seen corresponding path program 1 times [2021-11-20 07:13:39,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:39,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431677056] [2021-11-20 07:13:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:39,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:39,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:39,889 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:39,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431677056] [2021-11-20 07:13:39,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431677056] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:39,890 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:39,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:39,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748017528] [2021-11-20 07:13:39,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:39,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:13:39,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:39,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:13:39,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:13:39,895 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 277 [2021-11-20 07:13:39,897 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 279 transitions, 750 flow. Second operand has 5 states, 5 states have (on average 239.8) internal successors, (1199), 5 states have internal predecessors, (1199), 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) [2021-11-20 07:13:39,897 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:39,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 277 [2021-11-20 07:13:39,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:40,287 INFO L129 PetriNetUnfolder]: 427/1540 cut-off events. [2021-11-20 07:13:40,287 INFO L130 PetriNetUnfolder]: For 723/776 co-relation queries the response was YES. [2021-11-20 07:13:40,294 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3293 conditions, 1540 events. 427/1540 cut-off events. For 723/776 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 9735 event pairs, 219 based on Foata normal form. 0/1453 useless extension candidates. Maximal degree in co-relation 2740. Up to 651 conditions per place. [2021-11-20 07:13:40,308 INFO L132 encePairwiseOnDemand]: 272/277 looper letters, 48 selfloop transitions, 4 changer transitions 0/284 dead transitions. [2021-11-20 07:13:40,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 284 transitions, 864 flow [2021-11-20 07:13:40,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:40,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1455 transitions. [2021-11-20 07:13:40,313 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8754512635379061 [2021-11-20 07:13:40,313 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1455 transitions. [2021-11-20 07:13:40,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1455 transitions. [2021-11-20 07:13:40,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:40,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1455 transitions. [2021-11-20 07:13:40,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.5) internal successors, (1455), 6 states have internal predecessors, (1455), 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) [2021-11-20 07:13:40,324 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:40,326 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:40,326 INFO L186 Difference]: Start difference. First operand has 261 places, 279 transitions, 750 flow. Second operand 6 states and 1455 transitions. [2021-11-20 07:13:40,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 284 transitions, 864 flow [2021-11-20 07:13:40,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 284 transitions, 848 flow, removed 8 selfloop flow, removed 0 redundant places. [2021-11-20 07:13:40,344 INFO L242 Difference]: Finished difference. Result has 270 places, 282 transitions, 763 flow [2021-11-20 07:13:40,345 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=734, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=763, PETRI_PLACES=270, PETRI_TRANSITIONS=282} [2021-11-20 07:13:40,348 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, -3 predicate places. [2021-11-20 07:13:40,348 INFO L470 AbstractCegarLoop]: Abstraction has has 270 places, 282 transitions, 763 flow [2021-11-20 07:13:40,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 239.8) internal successors, (1199), 5 states have internal predecessors, (1199), 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) [2021-11-20 07:13:40,350 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:40,350 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:40,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:13:40,350 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:40,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:40,351 INFO L85 PathProgramCache]: Analyzing trace with hash 508360337, now seen corresponding path program 1 times [2021-11-20 07:13:40,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:40,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320923348] [2021-11-20 07:13:40,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:40,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:40,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:40,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:40,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:40,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320923348] [2021-11-20 07:13:40,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320923348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:40,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:40,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:40,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337611574] [2021-11-20 07:13:40,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:40,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:13:40,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:40,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:13:40,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:13:40,559 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 277 [2021-11-20 07:13:40,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 270 places, 282 transitions, 763 flow. Second operand has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2021-11-20 07:13:40,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:40,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 277 [2021-11-20 07:13:40,561 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:41,684 INFO L129 PetriNetUnfolder]: 1333/3284 cut-off events. [2021-11-20 07:13:41,685 INFO L130 PetriNetUnfolder]: For 1506/1512 co-relation queries the response was YES. [2021-11-20 07:13:41,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7944 conditions, 3284 events. 1333/3284 cut-off events. For 1506/1512 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 21792 event pairs, 861 based on Foata normal form. 0/3088 useless extension candidates. Maximal degree in co-relation 7820. Up to 2275 conditions per place. [2021-11-20 07:13:41,730 INFO L132 encePairwiseOnDemand]: 264/277 looper letters, 122 selfloop transitions, 30 changer transitions 0/311 dead transitions. [2021-11-20 07:13:41,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 311 transitions, 1189 flow [2021-11-20 07:13:41,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:41,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:41,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1100 transitions. [2021-11-20 07:13:41,736 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6618531889290012 [2021-11-20 07:13:41,736 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1100 transitions. [2021-11-20 07:13:41,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1100 transitions. [2021-11-20 07:13:41,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:41,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1100 transitions. [2021-11-20 07:13:41,741 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 183.33333333333334) internal successors, (1100), 6 states have internal predecessors, (1100), 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) [2021-11-20 07:13:41,746 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:41,748 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:41,748 INFO L186 Difference]: Start difference. First operand has 270 places, 282 transitions, 763 flow. Second operand 6 states and 1100 transitions. [2021-11-20 07:13:41,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 311 transitions, 1189 flow [2021-11-20 07:13:41,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 311 transitions, 1188 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-11-20 07:13:41,761 INFO L242 Difference]: Finished difference. Result has 279 places, 311 transitions, 1028 flow [2021-11-20 07:13:41,762 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=269, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=282, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1028, PETRI_PLACES=279, PETRI_TRANSITIONS=311} [2021-11-20 07:13:41,763 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 6 predicate places. [2021-11-20 07:13:41,763 INFO L470 AbstractCegarLoop]: Abstraction has has 279 places, 311 transitions, 1028 flow [2021-11-20 07:13:41,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 169.0) internal successors, (1014), 6 states have internal predecessors, (1014), 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) [2021-11-20 07:13:41,764 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:41,764 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:41,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:13:41,765 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:41,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:41,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1783042312, now seen corresponding path program 1 times [2021-11-20 07:13:41,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:41,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432046133] [2021-11-20 07:13:41,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:41,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:41,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:41,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:41,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:41,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432046133] [2021-11-20 07:13:41,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432046133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:41,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:41,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:41,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623723146] [2021-11-20 07:13:41,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:41,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:13:41,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:41,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:13:41,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:13:41,941 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 277 [2021-11-20 07:13:41,942 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 311 transitions, 1028 flow. Second operand has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 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) [2021-11-20 07:13:41,943 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:41,943 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 277 [2021-11-20 07:13:41,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:43,652 INFO L129 PetriNetUnfolder]: 1600/3827 cut-off events. [2021-11-20 07:13:43,652 INFO L130 PetriNetUnfolder]: For 3314/3326 co-relation queries the response was YES. [2021-11-20 07:13:43,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11252 conditions, 3827 events. 1600/3827 cut-off events. For 3314/3326 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 25913 event pairs, 594 based on Foata normal form. 0/3635 useless extension candidates. Maximal degree in co-relation 9732. Up to 2429 conditions per place. [2021-11-20 07:13:43,713 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 160 selfloop transitions, 27 changer transitions 0/349 dead transitions. [2021-11-20 07:13:43,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 349 transitions, 1596 flow [2021-11-20 07:13:43,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:43,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1120 transitions. [2021-11-20 07:13:43,720 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6738868832731648 [2021-11-20 07:13:43,720 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1120 transitions. [2021-11-20 07:13:43,720 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1120 transitions. [2021-11-20 07:13:43,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:43,722 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1120 transitions. [2021-11-20 07:13:43,726 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 186.66666666666666) internal successors, (1120), 6 states have internal predecessors, (1120), 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) [2021-11-20 07:13:43,732 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:43,733 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:43,733 INFO L186 Difference]: Start difference. First operand has 279 places, 311 transitions, 1028 flow. Second operand 6 states and 1120 transitions. [2021-11-20 07:13:43,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 349 transitions, 1596 flow [2021-11-20 07:13:43,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 349 transitions, 1532 flow, removed 32 selfloop flow, removed 0 redundant places. [2021-11-20 07:13:43,753 INFO L242 Difference]: Finished difference. Result has 288 places, 332 transitions, 1222 flow [2021-11-20 07:13:43,754 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=278, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1222, PETRI_PLACES=288, PETRI_TRANSITIONS=332} [2021-11-20 07:13:43,755 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 15 predicate places. [2021-11-20 07:13:43,755 INFO L470 AbstractCegarLoop]: Abstraction has has 288 places, 332 transitions, 1222 flow [2021-11-20 07:13:43,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 171.83333333333334) internal successors, (1031), 6 states have internal predecessors, (1031), 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) [2021-11-20 07:13:43,756 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:43,757 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:43,757 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 07:13:43,757 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:43,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:43,758 INFO L85 PathProgramCache]: Analyzing trace with hash -610642984, now seen corresponding path program 1 times [2021-11-20 07:13:43,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:43,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585124355] [2021-11-20 07:13:43,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:43,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:43,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:43,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:43,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585124355] [2021-11-20 07:13:43,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585124355] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:43,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:43,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:43,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056357475] [2021-11-20 07:13:43,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:43,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:13:43,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:13:43,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:13:43,960 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 277 [2021-11-20 07:13:43,962 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 332 transitions, 1222 flow. Second operand has 6 states, 6 states have (on average 178.16666666666666) internal successors, (1069), 6 states have internal predecessors, (1069), 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) [2021-11-20 07:13:43,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:43,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 277 [2021-11-20 07:13:43,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:45,158 INFO L129 PetriNetUnfolder]: 1523/3812 cut-off events. [2021-11-20 07:13:45,158 INFO L130 PetriNetUnfolder]: For 5124/5325 co-relation queries the response was YES. [2021-11-20 07:13:45,185 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12263 conditions, 3812 events. 1523/3812 cut-off events. For 5124/5325 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 26194 event pairs, 588 based on Foata normal form. 0/3631 useless extension candidates. Maximal degree in co-relation 10673. Up to 2530 conditions per place. [2021-11-20 07:13:45,211 INFO L132 encePairwiseOnDemand]: 266/277 looper letters, 187 selfloop transitions, 30 changer transitions 0/388 dead transitions. [2021-11-20 07:13:45,212 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 388 transitions, 1956 flow [2021-11-20 07:13:45,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:45,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:45,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1168 transitions. [2021-11-20 07:13:45,217 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7027677496991577 [2021-11-20 07:13:45,217 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1168 transitions. [2021-11-20 07:13:45,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1168 transitions. [2021-11-20 07:13:45,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:45,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1168 transitions. [2021-11-20 07:13:45,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 194.66666666666666) internal successors, (1168), 6 states have internal predecessors, (1168), 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) [2021-11-20 07:13:45,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:45,230 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:45,230 INFO L186 Difference]: Start difference. First operand has 288 places, 332 transitions, 1222 flow. Second operand 6 states and 1168 transitions. [2021-11-20 07:13:45,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 388 transitions, 1956 flow [2021-11-20 07:13:45,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 293 places, 388 transitions, 1936 flow, removed 10 selfloop flow, removed 0 redundant places. [2021-11-20 07:13:45,253 INFO L242 Difference]: Finished difference. Result has 298 places, 361 transitions, 1542 flow [2021-11-20 07:13:45,255 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=1204, PETRI_DIFFERENCE_MINUEND_PLACES=288, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=320, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1542, PETRI_PLACES=298, PETRI_TRANSITIONS=361} [2021-11-20 07:13:45,255 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 25 predicate places. [2021-11-20 07:13:45,256 INFO L470 AbstractCegarLoop]: Abstraction has has 298 places, 361 transitions, 1542 flow [2021-11-20 07:13:45,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 178.16666666666666) internal successors, (1069), 6 states have internal predecessors, (1069), 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) [2021-11-20 07:13:45,257 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:45,258 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:45,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-20 07:13:45,258 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:45,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:45,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1656784559, now seen corresponding path program 1 times [2021-11-20 07:13:45,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:45,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755582162] [2021-11-20 07:13:45,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:45,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:45,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:45,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:45,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755582162] [2021-11-20 07:13:45,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755582162] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:45,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:45,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:13:45,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850926712] [2021-11-20 07:13:45,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:45,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:13:45,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:45,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:13:45,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:13:45,368 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 238 out of 277 [2021-11-20 07:13:45,371 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 361 transitions, 1542 flow. Second operand has 5 states, 5 states have (on average 240.4) internal successors, (1202), 5 states have internal predecessors, (1202), 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) [2021-11-20 07:13:45,371 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:45,372 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 238 of 277 [2021-11-20 07:13:45,372 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:45,873 INFO L129 PetriNetUnfolder]: 329/1262 cut-off events. [2021-11-20 07:13:45,873 INFO L130 PetriNetUnfolder]: For 2845/2905 co-relation queries the response was YES. [2021-11-20 07:13:45,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3655 conditions, 1262 events. 329/1262 cut-off events. For 2845/2905 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 6824 event pairs, 12 based on Foata normal form. 19/1247 useless extension candidates. Maximal degree in co-relation 3519. Up to 344 conditions per place. [2021-11-20 07:13:45,890 INFO L132 encePairwiseOnDemand]: 272/277 looper letters, 79 selfloop transitions, 4 changer transitions 16/311 dead transitions. [2021-11-20 07:13:45,891 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 311 transitions, 1446 flow [2021-11-20 07:13:45,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:13:45,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-11-20 07:13:45,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1478 transitions. [2021-11-20 07:13:45,898 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8892900120336944 [2021-11-20 07:13:45,898 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1478 transitions. [2021-11-20 07:13:45,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1478 transitions. [2021-11-20 07:13:45,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:45,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1478 transitions. [2021-11-20 07:13:45,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 246.33333333333334) internal successors, (1478), 6 states have internal predecessors, (1478), 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) [2021-11-20 07:13:45,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:45,910 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 277.0) internal successors, (1939), 7 states have internal predecessors, (1939), 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) [2021-11-20 07:13:45,910 INFO L186 Difference]: Start difference. First operand has 298 places, 361 transitions, 1542 flow. Second operand 6 states and 1478 transitions. [2021-11-20 07:13:45,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 311 transitions, 1446 flow [2021-11-20 07:13:45,920 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 311 transitions, 1345 flow, removed 15 selfloop flow, removed 25 redundant places. [2021-11-20 07:13:45,926 INFO L242 Difference]: Finished difference. Result has 276 places, 262 transitions, 881 flow [2021-11-20 07:13:45,926 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=905, PETRI_DIFFERENCE_MINUEND_PLACES=270, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=278, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=881, PETRI_PLACES=276, PETRI_TRANSITIONS=262} [2021-11-20 07:13:45,927 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 3 predicate places. [2021-11-20 07:13:45,928 INFO L470 AbstractCegarLoop]: Abstraction has has 276 places, 262 transitions, 881 flow [2021-11-20 07:13:45,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.4) internal successors, (1202), 5 states have internal predecessors, (1202), 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) [2021-11-20 07:13:45,928 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:45,929 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:45,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-20 07:13:45,929 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:45,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1244947651, now seen corresponding path program 1 times [2021-11-20 07:13:45,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:45,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885868564] [2021-11-20 07:13:45,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:45,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:45,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:46,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:46,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885868564] [2021-11-20 07:13:46,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885868564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:46,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:46,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:13:46,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554834506] [2021-11-20 07:13:46,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:46,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:13:46,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:46,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:13:46,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:13:46,867 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:13:46,869 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 262 transitions, 881 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:13:46,869 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:46,870 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:13:46,870 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:49,590 INFO L129 PetriNetUnfolder]: 867/2021 cut-off events. [2021-11-20 07:13:49,590 INFO L130 PetriNetUnfolder]: For 3217/3217 co-relation queries the response was YES. [2021-11-20 07:13:49,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6552 conditions, 2021 events. 867/2021 cut-off events. For 3217/3217 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 11219 event pairs, 126 based on Foata normal form. 10/1997 useless extension candidates. Maximal degree in co-relation 6264. Up to 605 conditions per place. [2021-11-20 07:13:49,614 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 225 selfloop transitions, 84 changer transitions 0/439 dead transitions. [2021-11-20 07:13:49,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 439 transitions, 2264 flow [2021-11-20 07:13:49,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-20 07:13:49,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-11-20 07:13:49,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 3413 transitions. [2021-11-20 07:13:49,629 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5867285542375795 [2021-11-20 07:13:49,630 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 3413 transitions. [2021-11-20 07:13:49,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 3413 transitions. [2021-11-20 07:13:49,633 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:49,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 3413 transitions. [2021-11-20 07:13:49,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 162.52380952380952) internal successors, (3413), 21 states have internal predecessors, (3413), 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) [2021-11-20 07:13:49,660 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 277.0) internal successors, (6094), 22 states have internal predecessors, (6094), 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) [2021-11-20 07:13:49,662 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 277.0) internal successors, (6094), 22 states have internal predecessors, (6094), 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) [2021-11-20 07:13:49,662 INFO L186 Difference]: Start difference. First operand has 276 places, 262 transitions, 881 flow. Second operand 21 states and 3413 transitions. [2021-11-20 07:13:49,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 439 transitions, 2264 flow [2021-11-20 07:13:49,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 273 places, 439 transitions, 2236 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-11-20 07:13:49,690 INFO L242 Difference]: Finished difference. Result has 277 places, 315 transitions, 1500 flow [2021-11-20 07:13:49,690 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=856, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1500, PETRI_PLACES=277, PETRI_TRANSITIONS=315} [2021-11-20 07:13:49,691 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 4 predicate places. [2021-11-20 07:13:49,691 INFO L470 AbstractCegarLoop]: Abstraction has has 277 places, 315 transitions, 1500 flow [2021-11-20 07:13:49,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:13:49,692 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:49,693 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:49,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-20 07:13:49,693 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:49,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:49,694 INFO L85 PathProgramCache]: Analyzing trace with hash -293306895, now seen corresponding path program 2 times [2021-11-20 07:13:49,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:49,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491212418] [2021-11-20 07:13:49,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:49,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:49,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:50,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:50,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:50,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491212418] [2021-11-20 07:13:50,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491212418] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:50,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:50,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:13:50,608 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171012299] [2021-11-20 07:13:50,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:50,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:13:50,610 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:13:50,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:13:50,616 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:13:50,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 315 transitions, 1500 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:13:50,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:50,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:13:50,621 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:52,674 INFO L129 PetriNetUnfolder]: 1083/2332 cut-off events. [2021-11-20 07:13:52,675 INFO L130 PetriNetUnfolder]: For 6063/6065 co-relation queries the response was YES. [2021-11-20 07:13:52,688 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9524 conditions, 2332 events. 1083/2332 cut-off events. For 6063/6065 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 12946 event pairs, 186 based on Foata normal form. 10/2303 useless extension candidates. Maximal degree in co-relation 9230. Up to 898 conditions per place. [2021-11-20 07:13:52,710 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 268 selfloop transitions, 80 changer transitions 0/478 dead transitions. [2021-11-20 07:13:52,711 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 478 transitions, 3170 flow [2021-11-20 07:13:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:13:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:13:52,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2477 transitions. [2021-11-20 07:13:52,726 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5961492178098676 [2021-11-20 07:13:52,726 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2477 transitions. [2021-11-20 07:13:52,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2477 transitions. [2021-11-20 07:13:52,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:52,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2477 transitions. [2021-11-20 07:13:52,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.13333333333333) internal successors, (2477), 15 states have internal predecessors, (2477), 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) [2021-11-20 07:13:52,753 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:13:52,755 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:13:52,755 INFO L186 Difference]: Start difference. First operand has 277 places, 315 transitions, 1500 flow. Second operand 15 states and 2477 transitions. [2021-11-20 07:13:52,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 478 transitions, 3170 flow [2021-11-20 07:13:52,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 478 transitions, 3083 flow, removed 33 selfloop flow, removed 6 redundant places. [2021-11-20 07:13:52,827 INFO L242 Difference]: Finished difference. Result has 292 places, 368 transitions, 2386 flow [2021-11-20 07:13:52,828 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=1455, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2386, PETRI_PLACES=292, PETRI_TRANSITIONS=368} [2021-11-20 07:13:52,829 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 19 predicate places. [2021-11-20 07:13:52,829 INFO L470 AbstractCegarLoop]: Abstraction has has 292 places, 368 transitions, 2386 flow [2021-11-20 07:13:52,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:13:52,831 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:52,831 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:52,831 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-20 07:13:52,832 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:52,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:52,832 INFO L85 PathProgramCache]: Analyzing trace with hash 694093385, now seen corresponding path program 3 times [2021-11-20 07:13:52,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:52,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173285263] [2021-11-20 07:13:52,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:52,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:54,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:54,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:54,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173285263] [2021-11-20 07:13:54,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173285263] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:54,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:54,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:13:54,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358814526] [2021-11-20 07:13:54,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:54,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:13:54,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:54,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:13:54,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:13:54,369 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:13:54,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 368 transitions, 2386 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:13:54,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:54,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:13:54,376 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:56,575 INFO L129 PetriNetUnfolder]: 1065/2354 cut-off events. [2021-11-20 07:13:56,575 INFO L130 PetriNetUnfolder]: For 8023/8025 co-relation queries the response was YES. [2021-11-20 07:13:56,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10391 conditions, 2354 events. 1065/2354 cut-off events. For 8023/8025 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 13290 event pairs, 213 based on Foata normal form. 10/2323 useless extension candidates. Maximal degree in co-relation 10194. Up to 889 conditions per place. [2021-11-20 07:13:56,606 INFO L132 encePairwiseOnDemand]: 261/277 looper letters, 271 selfloop transitions, 82 changer transitions 0/483 dead transitions. [2021-11-20 07:13:56,606 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 483 transitions, 3562 flow [2021-11-20 07:13:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:13:56,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:13:56,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2474 transitions. [2021-11-20 07:13:56,616 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5954271961492178 [2021-11-20 07:13:56,616 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2474 transitions. [2021-11-20 07:13:56,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2474 transitions. [2021-11-20 07:13:56,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:56,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2474 transitions. [2021-11-20 07:13:56,625 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 164.93333333333334) internal successors, (2474), 15 states have internal predecessors, (2474), 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) [2021-11-20 07:13:56,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:13:56,639 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:13:56,639 INFO L186 Difference]: Start difference. First operand has 292 places, 368 transitions, 2386 flow. Second operand 15 states and 2474 transitions. [2021-11-20 07:13:56,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 483 transitions, 3562 flow [2021-11-20 07:13:56,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 301 places, 483 transitions, 3553 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-11-20 07:13:56,734 INFO L242 Difference]: Finished difference. Result has 303 places, 375 transitions, 2689 flow [2021-11-20 07:13:56,735 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=2377, PETRI_DIFFERENCE_MINUEND_PLACES=287, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=368, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=292, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=2689, PETRI_PLACES=303, PETRI_TRANSITIONS=375} [2021-11-20 07:13:56,736 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 30 predicate places. [2021-11-20 07:13:56,736 INFO L470 AbstractCegarLoop]: Abstraction has has 303 places, 375 transitions, 2689 flow [2021-11-20 07:13:56,737 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:13:56,738 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:56,738 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:56,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-20 07:13:56,738 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:56,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:56,739 INFO L85 PathProgramCache]: Analyzing trace with hash 798101735, now seen corresponding path program 4 times [2021-11-20 07:13:56,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:56,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627366988] [2021-11-20 07:13:56,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:56,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:13:57,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:13:57,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:13:57,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627366988] [2021-11-20 07:13:57,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627366988] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:13:57,475 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:13:57,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:13:57,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371470604] [2021-11-20 07:13:57,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:13:57,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:13:57,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:13:57,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:13:57,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:13:57,481 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:13:57,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 375 transitions, 2689 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:13:57,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:13:57,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:13:57,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:13:59,561 INFO L129 PetriNetUnfolder]: 1247/2601 cut-off events. [2021-11-20 07:13:59,561 INFO L130 PetriNetUnfolder]: For 12181/12183 co-relation queries the response was YES. [2021-11-20 07:13:59,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13059 conditions, 2601 events. 1247/2601 cut-off events. For 12181/12183 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 14687 event pairs, 218 based on Foata normal form. 10/2566 useless extension candidates. Maximal degree in co-relation 12850. Up to 1294 conditions per place. [2021-11-20 07:13:59,597 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 300 selfloop transitions, 108 changer transitions 0/538 dead transitions. [2021-11-20 07:13:59,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 317 places, 538 transitions, 4697 flow [2021-11-20 07:13:59,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:13:59,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:13:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2478 transitions. [2021-11-20 07:13:59,605 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5963898916967509 [2021-11-20 07:13:59,605 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2478 transitions. [2021-11-20 07:13:59,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2478 transitions. [2021-11-20 07:13:59,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:13:59,608 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2478 transitions. [2021-11-20 07:13:59,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.2) internal successors, (2478), 15 states have internal predecessors, (2478), 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) [2021-11-20 07:13:59,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:13:59,625 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:13:59,626 INFO L186 Difference]: Start difference. First operand has 303 places, 375 transitions, 2689 flow. Second operand 15 states and 2478 transitions. [2021-11-20 07:13:59,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 317 places, 538 transitions, 4697 flow [2021-11-20 07:13:59,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 538 transitions, 4569 flow, removed 0 selfloop flow, removed 11 redundant places. [2021-11-20 07:13:59,755 INFO L242 Difference]: Finished difference. Result has 313 places, 434 transitions, 3888 flow [2021-11-20 07:13:59,756 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=2582, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=3888, PETRI_PLACES=313, PETRI_TRANSITIONS=434} [2021-11-20 07:13:59,757 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 40 predicate places. [2021-11-20 07:13:59,757 INFO L470 AbstractCegarLoop]: Abstraction has has 313 places, 434 transitions, 3888 flow [2021-11-20 07:13:59,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:13:59,758 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:13:59,758 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:13:59,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-20 07:13:59,759 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:13:59,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:13:59,760 INFO L85 PathProgramCache]: Analyzing trace with hash 322331627, now seen corresponding path program 5 times [2021-11-20 07:13:59,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:13:59,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072591534] [2021-11-20 07:13:59,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:13:59,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:13:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:00,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:00,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:00,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072591534] [2021-11-20 07:14:00,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072591534] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:00,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:00,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:00,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038406025] [2021-11-20 07:14:00,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:00,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:00,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:00,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:00,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:00,733 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:00,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 434 transitions, 3888 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:00,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:00,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:00,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:03,194 INFO L129 PetriNetUnfolder]: 1229/2573 cut-off events. [2021-11-20 07:14:03,194 INFO L130 PetriNetUnfolder]: For 15707/15709 co-relation queries the response was YES. [2021-11-20 07:14:03,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13713 conditions, 2573 events. 1229/2573 cut-off events. For 15707/15709 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 14556 event pairs, 220 based on Foata normal form. 10/2538 useless extension candidates. Maximal degree in co-relation 13399. Up to 1285 conditions per place. [2021-11-20 07:14:03,237 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 304 selfloop transitions, 106 changer transitions 0/540 dead transitions. [2021-11-20 07:14:03,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 540 transitions, 5120 flow [2021-11-20 07:14:03,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:14:03,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:14:03,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2476 transitions. [2021-11-20 07:14:03,243 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5959085439229843 [2021-11-20 07:14:03,244 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2476 transitions. [2021-11-20 07:14:03,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2476 transitions. [2021-11-20 07:14:03,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:03,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2476 transitions. [2021-11-20 07:14:03,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.06666666666666) internal successors, (2476), 15 states have internal predecessors, (2476), 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) [2021-11-20 07:14:03,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:03,261 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:03,262 INFO L186 Difference]: Start difference. First operand has 313 places, 434 transitions, 3888 flow. Second operand 15 states and 2476 transitions. [2021-11-20 07:14:03,262 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 540 transitions, 5120 flow [2021-11-20 07:14:03,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 540 transitions, 5078 flow, removed 9 selfloop flow, removed 7 redundant places. [2021-11-20 07:14:03,458 INFO L242 Difference]: Finished difference. Result has 321 places, 437 transitions, 4132 flow [2021-11-20 07:14:03,459 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=3846, PETRI_DIFFERENCE_MINUEND_PLACES=306, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=331, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=4132, PETRI_PLACES=321, PETRI_TRANSITIONS=437} [2021-11-20 07:14:03,459 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 48 predicate places. [2021-11-20 07:14:03,460 INFO L470 AbstractCegarLoop]: Abstraction has has 321 places, 437 transitions, 4132 flow [2021-11-20 07:14:03,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:03,461 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:03,461 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:03,461 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-20 07:14:03,462 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:03,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:03,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1422883499, now seen corresponding path program 6 times [2021-11-20 07:14:03,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:03,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117220745] [2021-11-20 07:14:03,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:03,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:04,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:04,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:04,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117220745] [2021-11-20 07:14:04,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117220745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:04,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:04,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:04,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221009623] [2021-11-20 07:14:04,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:04,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:04,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:04,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:04,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:04,206 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:04,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 437 transitions, 4132 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:04,209 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:04,209 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:04,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:06,691 INFO L129 PetriNetUnfolder]: 1429/2926 cut-off events. [2021-11-20 07:14:06,691 INFO L130 PetriNetUnfolder]: For 20529/20531 co-relation queries the response was YES. [2021-11-20 07:14:06,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16600 conditions, 2926 events. 1429/2926 cut-off events. For 20529/20531 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 17149 event pairs, 261 based on Foata normal form. 10/2890 useless extension candidates. Maximal degree in co-relation 16284. Up to 1375 conditions per place. [2021-11-20 07:14:06,731 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 308 selfloop transitions, 151 changer transitions 0/589 dead transitions. [2021-11-20 07:14:06,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 337 places, 589 transitions, 6171 flow [2021-11-20 07:14:06,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 07:14:06,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-20 07:14:06,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2793 transitions. [2021-11-20 07:14:06,738 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5931195582926311 [2021-11-20 07:14:06,738 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2793 transitions. [2021-11-20 07:14:06,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2793 transitions. [2021-11-20 07:14:06,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:06,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2793 transitions. [2021-11-20 07:14:06,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 164.2941176470588) internal successors, (2793), 17 states have internal predecessors, (2793), 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) [2021-11-20 07:14:06,754 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 277.0) internal successors, (4986), 18 states have internal predecessors, (4986), 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) [2021-11-20 07:14:06,756 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 277.0) internal successors, (4986), 18 states have internal predecessors, (4986), 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) [2021-11-20 07:14:06,756 INFO L186 Difference]: Start difference. First operand has 321 places, 437 transitions, 4132 flow. Second operand 17 states and 2793 transitions. [2021-11-20 07:14:06,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 337 places, 589 transitions, 6171 flow [2021-11-20 07:14:06,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 589 transitions, 5967 flow, removed 6 selfloop flow, removed 11 redundant places. [2021-11-20 07:14:07,002 INFO L242 Difference]: Finished difference. Result has 333 places, 483 transitions, 5305 flow [2021-11-20 07:14:07,003 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=3956, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=5305, PETRI_PLACES=333, PETRI_TRANSITIONS=483} [2021-11-20 07:14:07,004 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 60 predicate places. [2021-11-20 07:14:07,004 INFO L470 AbstractCegarLoop]: Abstraction has has 333 places, 483 transitions, 5305 flow [2021-11-20 07:14:07,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:07,005 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:07,006 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:07,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-20 07:14:07,006 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash -60557911, now seen corresponding path program 7 times [2021-11-20 07:14:07,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:07,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997744861] [2021-11-20 07:14:07,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:07,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:07,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:07,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:07,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997744861] [2021-11-20 07:14:07,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997744861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:07,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:07,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:07,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005108500] [2021-11-20 07:14:07,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:07,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:07,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:07,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:07,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:07,889 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:07,893 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 483 transitions, 5305 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:07,894 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:07,894 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:07,894 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:10,880 INFO L129 PetriNetUnfolder]: 1602/3181 cut-off events. [2021-11-20 07:14:10,880 INFO L130 PetriNetUnfolder]: For 29728/29730 co-relation queries the response was YES. [2021-11-20 07:14:10,898 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20034 conditions, 3181 events. 1602/3181 cut-off events. For 29728/29730 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 18776 event pairs, 246 based on Foata normal form. 10/3146 useless extension candidates. Maximal degree in co-relation 19767. Up to 1658 conditions per place. [2021-11-20 07:14:10,925 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 337 selfloop transitions, 163 changer transitions 0/630 dead transitions. [2021-11-20 07:14:10,925 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 348 places, 630 transitions, 7617 flow [2021-11-20 07:14:10,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 07:14:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-20 07:14:10,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2635 transitions. [2021-11-20 07:14:10,931 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5945397111913358 [2021-11-20 07:14:10,932 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2635 transitions. [2021-11-20 07:14:10,932 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2635 transitions. [2021-11-20 07:14:10,933 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:10,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2635 transitions. [2021-11-20 07:14:10,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 164.6875) internal successors, (2635), 16 states have internal predecessors, (2635), 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) [2021-11-20 07:14:10,945 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 277.0) internal successors, (4709), 17 states have internal predecessors, (4709), 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) [2021-11-20 07:14:10,946 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 277.0) internal successors, (4709), 17 states have internal predecessors, (4709), 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) [2021-11-20 07:14:10,946 INFO L186 Difference]: Start difference. First operand has 333 places, 483 transitions, 5305 flow. Second operand 16 states and 2635 transitions. [2021-11-20 07:14:10,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 348 places, 630 transitions, 7617 flow [2021-11-20 07:14:11,216 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 630 transitions, 7468 flow, removed 51 selfloop flow, removed 8 redundant places. [2021-11-20 07:14:11,228 INFO L242 Difference]: Finished difference. Result has 346 places, 527 transitions, 6742 flow [2021-11-20 07:14:11,229 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=5193, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=483, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=6742, PETRI_PLACES=346, PETRI_TRANSITIONS=527} [2021-11-20 07:14:11,229 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 73 predicate places. [2021-11-20 07:14:11,230 INFO L470 AbstractCegarLoop]: Abstraction has has 346 places, 527 transitions, 6742 flow [2021-11-20 07:14:11,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:11,231 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:11,231 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:11,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-20 07:14:11,231 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:11,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:11,232 INFO L85 PathProgramCache]: Analyzing trace with hash 510908657, now seen corresponding path program 8 times [2021-11-20 07:14:11,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:11,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052269832] [2021-11-20 07:14:11,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:11,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:12,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:12,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:12,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052269832] [2021-11-20 07:14:12,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052269832] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:12,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:12,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:12,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461007766] [2021-11-20 07:14:12,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:12,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:12,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:12,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:12,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:12,183 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:12,185 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 527 transitions, 6742 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:12,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:12,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:12,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:14,752 INFO L129 PetriNetUnfolder]: 1584/3153 cut-off events. [2021-11-20 07:14:14,752 INFO L130 PetriNetUnfolder]: For 35321/35323 co-relation queries the response was YES. [2021-11-20 07:14:14,774 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20987 conditions, 3153 events. 1584/3153 cut-off events. For 35321/35323 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 18663 event pairs, 249 based on Foata normal form. 10/3118 useless extension candidates. Maximal degree in co-relation 20684. Up to 1649 conditions per place. [2021-11-20 07:14:14,793 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 346 selfloop transitions, 160 changer transitions 0/636 dead transitions. [2021-11-20 07:14:14,794 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 636 transitions, 8336 flow [2021-11-20 07:14:14,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:14:14,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:14:14,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2478 transitions. [2021-11-20 07:14:14,800 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5963898916967509 [2021-11-20 07:14:14,801 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2478 transitions. [2021-11-20 07:14:14,801 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2478 transitions. [2021-11-20 07:14:14,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:14,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2478 transitions. [2021-11-20 07:14:14,807 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.2) internal successors, (2478), 15 states have internal predecessors, (2478), 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) [2021-11-20 07:14:14,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:14,816 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:14,816 INFO L186 Difference]: Start difference. First operand has 346 places, 527 transitions, 6742 flow. Second operand 15 states and 2478 transitions. [2021-11-20 07:14:14,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 636 transitions, 8336 flow [2021-11-20 07:14:15,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 352 places, 636 transitions, 8275 flow, removed 10 selfloop flow, removed 8 redundant places. [2021-11-20 07:14:15,090 INFO L242 Difference]: Finished difference. Result has 353 places, 538 transitions, 7312 flow [2021-11-20 07:14:15,090 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=6681, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=150, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7312, PETRI_PLACES=353, PETRI_TRANSITIONS=538} [2021-11-20 07:14:15,091 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 80 predicate places. [2021-11-20 07:14:15,091 INFO L470 AbstractCegarLoop]: Abstraction has has 353 places, 538 transitions, 7312 flow [2021-11-20 07:14:15,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:15,092 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:15,092 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:15,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-20 07:14:15,092 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:15,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:15,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1007005587, now seen corresponding path program 9 times [2021-11-20 07:14:15,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:15,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13159438] [2021-11-20 07:14:15,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:15,094 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:16,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:16,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13159438] [2021-11-20 07:14:16,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13159438] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:16,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:16,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:16,208 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053851130] [2021-11-20 07:14:16,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:16,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:16,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:16,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:16,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:16,213 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:16,216 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 538 transitions, 7312 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:16,217 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:16,217 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:16,217 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:18,428 INFO L129 PetriNetUnfolder]: 1566/3125 cut-off events. [2021-11-20 07:14:18,428 INFO L130 PetriNetUnfolder]: For 37421/37423 co-relation queries the response was YES. [2021-11-20 07:14:18,449 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21410 conditions, 3125 events. 1566/3125 cut-off events. For 37421/37423 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 18366 event pairs, 232 based on Foata normal form. 10/3090 useless extension candidates. Maximal degree in co-relation 21079. Up to 1446 conditions per place. [2021-11-20 07:14:18,466 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 331 selfloop transitions, 182 changer transitions 0/643 dead transitions. [2021-11-20 07:14:18,466 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 367 places, 643 transitions, 8793 flow [2021-11-20 07:14:18,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:14:18,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:14:18,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2479 transitions. [2021-11-20 07:14:18,471 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5966305655836341 [2021-11-20 07:14:18,471 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2479 transitions. [2021-11-20 07:14:18,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2479 transitions. [2021-11-20 07:14:18,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:18,472 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2479 transitions. [2021-11-20 07:14:18,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.26666666666668) internal successors, (2479), 15 states have internal predecessors, (2479), 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) [2021-11-20 07:14:18,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:18,484 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:18,484 INFO L186 Difference]: Start difference. First operand has 353 places, 538 transitions, 7312 flow. Second operand 15 states and 2479 transitions. [2021-11-20 07:14:18,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 367 places, 643 transitions, 8793 flow [2021-11-20 07:14:18,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 643 transitions, 8569 flow, removed 22 selfloop flow, removed 10 redundant places. [2021-11-20 07:14:18,820 INFO L242 Difference]: Finished difference. Result has 359 places, 545 transitions, 7664 flow [2021-11-20 07:14:18,821 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=7088, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=538, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=175, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=7664, PETRI_PLACES=359, PETRI_TRANSITIONS=545} [2021-11-20 07:14:18,821 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 86 predicate places. [2021-11-20 07:14:18,821 INFO L470 AbstractCegarLoop]: Abstraction has has 359 places, 545 transitions, 7664 flow [2021-11-20 07:14:18,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:18,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:18,822 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:18,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-11-20 07:14:18,822 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:18,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:18,823 INFO L85 PathProgramCache]: Analyzing trace with hash 201207363, now seen corresponding path program 10 times [2021-11-20 07:14:18,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:18,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119891769] [2021-11-20 07:14:18,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:18,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:19,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:19,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:19,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119891769] [2021-11-20 07:14:19,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119891769] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:19,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:19,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:19,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176977331] [2021-11-20 07:14:19,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:19,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:19,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:19,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:19,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:19,526 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:19,528 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 359 places, 545 transitions, 7664 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:19,528 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:19,528 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:19,528 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:21,629 INFO L129 PetriNetUnfolder]: 1638/3262 cut-off events. [2021-11-20 07:14:21,629 INFO L130 PetriNetUnfolder]: For 44887/44889 co-relation queries the response was YES. [2021-11-20 07:14:21,652 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23279 conditions, 3262 events. 1638/3262 cut-off events. For 44887/44889 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 19602 event pairs, 481 based on Foata normal form. 12/3227 useless extension candidates. Maximal degree in co-relation 22947. Up to 1960 conditions per place. [2021-11-20 07:14:21,671 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 337 selfloop transitions, 198 changer transitions 0/665 dead transitions. [2021-11-20 07:14:21,671 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 665 transitions, 9776 flow [2021-11-20 07:14:21,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 07:14:21,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-20 07:14:21,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2165 transitions. [2021-11-20 07:14:21,675 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6012218828103305 [2021-11-20 07:14:21,676 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2165 transitions. [2021-11-20 07:14:21,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2165 transitions. [2021-11-20 07:14:21,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:21,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2165 transitions. [2021-11-20 07:14:21,679 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 166.53846153846155) internal successors, (2165), 13 states have internal predecessors, (2165), 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) [2021-11-20 07:14:21,682 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 277.0) internal successors, (3878), 14 states have internal predecessors, (3878), 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) [2021-11-20 07:14:21,682 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 277.0) internal successors, (3878), 14 states have internal predecessors, (3878), 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) [2021-11-20 07:14:21,682 INFO L186 Difference]: Start difference. First operand has 359 places, 545 transitions, 7664 flow. Second operand 13 states and 2165 transitions. [2021-11-20 07:14:21,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 665 transitions, 9776 flow [2021-11-20 07:14:21,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 665 transitions, 9513 flow, removed 33 selfloop flow, removed 9 redundant places. [2021-11-20 07:14:22,007 INFO L242 Difference]: Finished difference. Result has 366 places, 575 transitions, 8885 flow [2021-11-20 07:14:22,008 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=7417, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=545, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=168, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=359, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=8885, PETRI_PLACES=366, PETRI_TRANSITIONS=575} [2021-11-20 07:14:22,009 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 93 predicate places. [2021-11-20 07:14:22,009 INFO L470 AbstractCegarLoop]: Abstraction has has 366 places, 575 transitions, 8885 flow [2021-11-20 07:14:22,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:22,010 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:22,010 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:22,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-20 07:14:22,011 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:22,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:22,011 INFO L85 PathProgramCache]: Analyzing trace with hash -821741219, now seen corresponding path program 11 times [2021-11-20 07:14:22,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:22,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673053383] [2021-11-20 07:14:22,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:22,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:22,893 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:22,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673053383] [2021-11-20 07:14:22,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673053383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:22,894 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:22,894 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:22,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885512672] [2021-11-20 07:14:22,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:22,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:22,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:22,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:22,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:22,899 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:22,901 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 366 places, 575 transitions, 8885 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:22,901 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:22,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:22,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:25,943 INFO L129 PetriNetUnfolder]: 1746/3455 cut-off events. [2021-11-20 07:14:25,943 INFO L130 PetriNetUnfolder]: For 55355/55357 co-relation queries the response was YES. [2021-11-20 07:14:25,965 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25874 conditions, 3455 events. 1746/3455 cut-off events. For 55355/55357 co-relation queries the response was YES. Maximal size of possible extension queue 217. Compared 21144 event pairs, 492 based on Foata normal form. 12/3420 useless extension candidates. Maximal degree in co-relation 25540. Up to 2019 conditions per place. [2021-11-20 07:14:25,985 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 350 selfloop transitions, 233 changer transitions 0/713 dead transitions. [2021-11-20 07:14:25,985 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 713 transitions, 11429 flow [2021-11-20 07:14:25,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:14:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:14:25,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2477 transitions. [2021-11-20 07:14:25,988 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5961492178098676 [2021-11-20 07:14:25,988 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2477 transitions. [2021-11-20 07:14:25,989 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2477 transitions. [2021-11-20 07:14:25,990 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:25,990 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2477 transitions. [2021-11-20 07:14:25,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.13333333333333) internal successors, (2477), 15 states have internal predecessors, (2477), 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) [2021-11-20 07:14:25,999 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:26,000 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:26,000 INFO L186 Difference]: Start difference. First operand has 366 places, 575 transitions, 8885 flow. Second operand 15 states and 2477 transitions. [2021-11-20 07:14:26,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 713 transitions, 11429 flow [2021-11-20 07:14:26,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 371 places, 713 transitions, 11278 flow, removed 0 selfloop flow, removed 9 redundant places. [2021-11-20 07:14:26,421 INFO L242 Difference]: Finished difference. Result has 378 places, 618 transitions, 10723 flow [2021-11-20 07:14:26,422 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=8742, PETRI_DIFFERENCE_MINUEND_PLACES=357, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=575, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=193, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=10723, PETRI_PLACES=378, PETRI_TRANSITIONS=618} [2021-11-20 07:14:26,423 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 105 predicate places. [2021-11-20 07:14:26,423 INFO L470 AbstractCegarLoop]: Abstraction has has 378 places, 618 transitions, 10723 flow [2021-11-20 07:14:26,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:26,424 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:26,424 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:26,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-20 07:14:26,425 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:26,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1144013833, now seen corresponding path program 12 times [2021-11-20 07:14:26,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:26,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431601112] [2021-11-20 07:14:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:26,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:26,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:27,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:27,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:27,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431601112] [2021-11-20 07:14:27,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431601112] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:27,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:27,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:27,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044943154] [2021-11-20 07:14:27,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:27,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:27,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:27,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:27,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:27,163 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:27,165 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 618 transitions, 10723 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:27,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:27,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:27,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:30,435 INFO L129 PetriNetUnfolder]: 1944/3788 cut-off events. [2021-11-20 07:14:30,435 INFO L130 PetriNetUnfolder]: For 76121/76123 co-relation queries the response was YES. [2021-11-20 07:14:30,462 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30783 conditions, 3788 events. 1944/3788 cut-off events. For 76121/76123 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 23700 event pairs, 489 based on Foata normal form. 12/3753 useless extension candidates. Maximal degree in co-relation 30441. Up to 2118 conditions per place. [2021-11-20 07:14:30,484 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 344 selfloop transitions, 303 changer transitions 0/777 dead transitions. [2021-11-20 07:14:30,484 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 394 places, 777 transitions, 13863 flow [2021-11-20 07:14:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 07:14:30,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-20 07:14:30,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2792 transitions. [2021-11-20 07:14:30,488 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5929071989806753 [2021-11-20 07:14:30,488 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2792 transitions. [2021-11-20 07:14:30,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2792 transitions. [2021-11-20 07:14:30,490 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:30,490 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2792 transitions. [2021-11-20 07:14:30,494 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 164.23529411764707) internal successors, (2792), 17 states have internal predecessors, (2792), 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) [2021-11-20 07:14:30,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 277.0) internal successors, (4986), 18 states have internal predecessors, (4986), 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) [2021-11-20 07:14:30,500 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 277.0) internal successors, (4986), 18 states have internal predecessors, (4986), 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) [2021-11-20 07:14:30,500 INFO L186 Difference]: Start difference. First operand has 378 places, 618 transitions, 10723 flow. Second operand 17 states and 2792 transitions. [2021-11-20 07:14:30,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 394 places, 777 transitions, 13863 flow [2021-11-20 07:14:31,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 777 transitions, 13726 flow, removed 27 selfloop flow, removed 7 redundant places. [2021-11-20 07:14:31,069 INFO L242 Difference]: Finished difference. Result has 394 places, 675 transitions, 12928 flow [2021-11-20 07:14:31,069 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=10598, PETRI_DIFFERENCE_MINUEND_PLACES=371, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=618, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=250, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=354, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=12928, PETRI_PLACES=394, PETRI_TRANSITIONS=675} [2021-11-20 07:14:31,070 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 121 predicate places. [2021-11-20 07:14:31,070 INFO L470 AbstractCegarLoop]: Abstraction has has 394 places, 675 transitions, 12928 flow [2021-11-20 07:14:31,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:31,070 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:31,070 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:31,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-20 07:14:31,070 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:31,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:31,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1572229125, now seen corresponding path program 13 times [2021-11-20 07:14:31,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:31,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777258155] [2021-11-20 07:14:31,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:31,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:31,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:31,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:31,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777258155] [2021-11-20 07:14:31,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777258155] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:31,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:31,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:31,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613264142] [2021-11-20 07:14:31,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:31,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:31,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:31,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:31,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:31,973 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:31,976 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 675 transitions, 12928 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:31,976 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:31,976 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:31,976 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:35,438 INFO L129 PetriNetUnfolder]: 1980/3844 cut-off events. [2021-11-20 07:14:35,438 INFO L130 PetriNetUnfolder]: For 87626/87628 co-relation queries the response was YES. [2021-11-20 07:14:35,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33161 conditions, 3844 events. 1980/3844 cut-off events. For 87626/87628 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 24092 event pairs, 485 based on Foata normal form. 12/3809 useless extension candidates. Maximal degree in co-relation 32811. Up to 2136 conditions per place. [2021-11-20 07:14:35,502 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 348 selfloop transitions, 310 changer transitions 0/788 dead transitions. [2021-11-20 07:14:35,502 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 410 places, 788 transitions, 14912 flow [2021-11-20 07:14:35,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 07:14:35,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-11-20 07:14:35,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 2791 transitions. [2021-11-20 07:14:35,508 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5926948396687195 [2021-11-20 07:14:35,508 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 2791 transitions. [2021-11-20 07:14:35,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 2791 transitions. [2021-11-20 07:14:35,622 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:35,622 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 2791 transitions. [2021-11-20 07:14:35,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 164.1764705882353) internal successors, (2791), 17 states have internal predecessors, (2791), 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) [2021-11-20 07:14:35,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 277.0) internal successors, (4986), 18 states have internal predecessors, (4986), 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) [2021-11-20 07:14:35,633 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 277.0) internal successors, (4986), 18 states have internal predecessors, (4986), 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) [2021-11-20 07:14:35,633 INFO L186 Difference]: Start difference. First operand has 394 places, 675 transitions, 12928 flow. Second operand 17 states and 2791 transitions. [2021-11-20 07:14:35,633 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 410 places, 788 transitions, 14912 flow [2021-11-20 07:14:36,282 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 788 transitions, 14732 flow, removed 71 selfloop flow, removed 6 redundant places. [2021-11-20 07:14:36,301 INFO L242 Difference]: Finished difference. Result has 406 places, 687 transitions, 13836 flow [2021-11-20 07:14:36,302 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=12748, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=675, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=298, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13836, PETRI_PLACES=406, PETRI_TRANSITIONS=687} [2021-11-20 07:14:36,302 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 133 predicate places. [2021-11-20 07:14:36,302 INFO L470 AbstractCegarLoop]: Abstraction has has 406 places, 687 transitions, 13836 flow [2021-11-20 07:14:36,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:36,303 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:36,303 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:36,303 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-20 07:14:36,303 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:36,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:36,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1272563575, now seen corresponding path program 14 times [2021-11-20 07:14:36,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:36,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132235024] [2021-11-20 07:14:36,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:36,304 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:36,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:36,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:36,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132235024] [2021-11-20 07:14:36,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132235024] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:36,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:36,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:36,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632880188] [2021-11-20 07:14:36,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:36,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:36,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:36,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:36,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:36,979 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:36,981 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 406 places, 687 transitions, 13836 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:36,981 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:36,981 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:36,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:40,083 INFO L129 PetriNetUnfolder]: 2027/3931 cut-off events. [2021-11-20 07:14:40,083 INFO L130 PetriNetUnfolder]: For 97843/97845 co-relation queries the response was YES. [2021-11-20 07:14:40,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35577 conditions, 3931 events. 2027/3931 cut-off events. For 97843/97845 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 24807 event pairs, 566 based on Foata normal form. 12/3894 useless extension candidates. Maximal degree in co-relation 35224. Up to 2388 conditions per place. [2021-11-20 07:14:40,160 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 394 selfloop transitions, 276 changer transitions 0/800 dead transitions. [2021-11-20 07:14:40,160 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 800 transitions, 16265 flow [2021-11-20 07:14:40,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:14:40,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 07:14:40,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2321 transitions. [2021-11-20 07:14:40,163 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5985043837029397 [2021-11-20 07:14:40,164 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2321 transitions. [2021-11-20 07:14:40,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2321 transitions. [2021-11-20 07:14:40,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:40,165 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2321 transitions. [2021-11-20 07:14:40,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.78571428571428) internal successors, (2321), 14 states have internal predecessors, (2321), 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) [2021-11-20 07:14:40,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:14:40,174 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:14:40,174 INFO L186 Difference]: Start difference. First operand has 406 places, 687 transitions, 13836 flow. Second operand 14 states and 2321 transitions. [2021-11-20 07:14:40,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 800 transitions, 16265 flow [2021-11-20 07:14:40,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 800 transitions, 15866 flow, removed 26 selfloop flow, removed 10 redundant places. [2021-11-20 07:14:40,981 INFO L242 Difference]: Finished difference. Result has 414 places, 711 transitions, 15292 flow [2021-11-20 07:14:40,982 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=13452, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=422, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=15292, PETRI_PLACES=414, PETRI_TRANSITIONS=711} [2021-11-20 07:14:40,983 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 141 predicate places. [2021-11-20 07:14:40,983 INFO L470 AbstractCegarLoop]: Abstraction has has 414 places, 711 transitions, 15292 flow [2021-11-20 07:14:40,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:40,984 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:40,984 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:40,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-20 07:14:40,985 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:40,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:40,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1150210423, now seen corresponding path program 15 times [2021-11-20 07:14:40,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:40,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267606566] [2021-11-20 07:14:40,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:40,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:41,914 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:41,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:41,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267606566] [2021-11-20 07:14:41,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267606566] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:41,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:41,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:41,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206840081] [2021-11-20 07:14:41,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:41,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:41,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:41,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:41,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:41,923 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:41,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 414 places, 711 transitions, 15292 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:41,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:41,926 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:41,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:45,092 INFO L129 PetriNetUnfolder]: 2099/4043 cut-off events. [2021-11-20 07:14:45,092 INFO L130 PetriNetUnfolder]: For 110596/110598 co-relation queries the response was YES. [2021-11-20 07:14:45,160 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37968 conditions, 4043 events. 2099/4043 cut-off events. For 110596/110598 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 25524 event pairs, 496 based on Foata normal form. 12/4006 useless extension candidates. Maximal degree in co-relation 37610. Up to 2198 conditions per place. [2021-11-20 07:14:45,190 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 381 selfloop transitions, 315 changer transitions 0/826 dead transitions. [2021-11-20 07:14:45,190 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 826 transitions, 17625 flow [2021-11-20 07:14:45,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:14:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:14:45,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2479 transitions. [2021-11-20 07:14:45,194 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5966305655836341 [2021-11-20 07:14:45,194 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2479 transitions. [2021-11-20 07:14:45,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2479 transitions. [2021-11-20 07:14:45,195 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:45,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2479 transitions. [2021-11-20 07:14:45,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.26666666666668) internal successors, (2479), 15 states have internal predecessors, (2479), 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) [2021-11-20 07:14:45,203 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:45,204 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:45,204 INFO L186 Difference]: Start difference. First operand has 414 places, 711 transitions, 15292 flow. Second operand 15 states and 2479 transitions. [2021-11-20 07:14:45,204 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 826 transitions, 17625 flow [2021-11-20 07:14:46,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 826 transitions, 17188 flow, removed 38 selfloop flow, removed 12 redundant places. [2021-11-20 07:14:46,224 INFO L242 Difference]: Finished difference. Result has 419 places, 729 transitions, 16174 flow [2021-11-20 07:14:46,225 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=14872, PETRI_DIFFERENCE_MINUEND_PLACES=402, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=711, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=297, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=409, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16174, PETRI_PLACES=419, PETRI_TRANSITIONS=729} [2021-11-20 07:14:46,225 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 146 predicate places. [2021-11-20 07:14:46,226 INFO L470 AbstractCegarLoop]: Abstraction has has 419 places, 729 transitions, 16174 flow [2021-11-20 07:14:46,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:46,226 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:46,227 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:46,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-20 07:14:46,227 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:46,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1338787453, now seen corresponding path program 16 times [2021-11-20 07:14:46,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:46,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822962369] [2021-11-20 07:14:46,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:46,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:46,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:46,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822962369] [2021-11-20 07:14:46,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822962369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:46,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:46,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:46,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912381962] [2021-11-20 07:14:46,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:46,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:46,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:46,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:46,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:46,972 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:46,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 729 transitions, 16174 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:46,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:46,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:46,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:50,379 INFO L129 PetriNetUnfolder]: 2101/4060 cut-off events. [2021-11-20 07:14:50,379 INFO L130 PetriNetUnfolder]: For 119283/119285 co-relation queries the response was YES. [2021-11-20 07:14:50,418 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38951 conditions, 4060 events. 2101/4060 cut-off events. For 119283/119285 co-relation queries the response was YES. Maximal size of possible extension queue 266. Compared 25834 event pairs, 562 based on Foata normal form. 12/4023 useless extension candidates. Maximal degree in co-relation 38593. Up to 2411 conditions per place. [2021-11-20 07:14:50,445 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 407 selfloop transitions, 300 changer transitions 0/837 dead transitions. [2021-11-20 07:14:50,445 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 433 places, 837 transitions, 18503 flow [2021-11-20 07:14:50,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:14:50,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:14:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2478 transitions. [2021-11-20 07:14:50,448 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5963898916967509 [2021-11-20 07:14:50,448 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2478 transitions. [2021-11-20 07:14:50,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2478 transitions. [2021-11-20 07:14:50,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:50,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2478 transitions. [2021-11-20 07:14:50,451 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.2) internal successors, (2478), 15 states have internal predecessors, (2478), 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) [2021-11-20 07:14:50,456 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:50,457 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:14:50,457 INFO L186 Difference]: Start difference. First operand has 419 places, 729 transitions, 16174 flow. Second operand 15 states and 2478 transitions. [2021-11-20 07:14:50,457 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 433 places, 837 transitions, 18503 flow [2021-11-20 07:14:51,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 424 places, 837 transitions, 17922 flow, removed 72 selfloop flow, removed 9 redundant places. [2021-11-20 07:14:51,451 INFO L242 Difference]: Finished difference. Result has 427 places, 746 transitions, 16977 flow [2021-11-20 07:14:51,452 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=15616, PETRI_DIFFERENCE_MINUEND_PLACES=410, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=729, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=283, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=437, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=16977, PETRI_PLACES=427, PETRI_TRANSITIONS=746} [2021-11-20 07:14:51,453 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 154 predicate places. [2021-11-20 07:14:51,453 INFO L470 AbstractCegarLoop]: Abstraction has has 427 places, 746 transitions, 16977 flow [2021-11-20 07:14:51,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:51,454 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:51,454 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:51,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-11-20 07:14:51,455 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:51,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:51,455 INFO L85 PathProgramCache]: Analyzing trace with hash 449338395, now seen corresponding path program 17 times [2021-11-20 07:14:51,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:51,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171150420] [2021-11-20 07:14:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:51,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:51,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:52,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:52,010 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:52,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171150420] [2021-11-20 07:14:52,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171150420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:52,010 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:52,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:52,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506719383] [2021-11-20 07:14:52,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:52,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:52,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:52,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:52,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:52,014 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:52,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 427 places, 746 transitions, 16977 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:52,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:52,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:52,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:14:55,710 INFO L129 PetriNetUnfolder]: 2276/4360 cut-off events. [2021-11-20 07:14:55,710 INFO L130 PetriNetUnfolder]: For 131996/131998 co-relation queries the response was YES. [2021-11-20 07:14:55,765 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42865 conditions, 4360 events. 2276/4360 cut-off events. For 131996/131998 co-relation queries the response was YES. Maximal size of possible extension queue 291. Compared 28265 event pairs, 500 based on Foata normal form. 12/4326 useless extension candidates. Maximal degree in co-relation 42504. Up to 2309 conditions per place. [2021-11-20 07:14:55,798 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 351 selfloop transitions, 418 changer transitions 0/899 dead transitions. [2021-11-20 07:14:55,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 899 transitions, 20582 flow [2021-11-20 07:14:55,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-20 07:14:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-11-20 07:14:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2951 transitions. [2021-11-20 07:14:55,803 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5918572001604493 [2021-11-20 07:14:55,803 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2951 transitions. [2021-11-20 07:14:55,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2951 transitions. [2021-11-20 07:14:55,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:14:55,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2951 transitions. [2021-11-20 07:14:55,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 163.94444444444446) internal successors, (2951), 18 states have internal predecessors, (2951), 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) [2021-11-20 07:14:55,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 277.0) internal successors, (5263), 19 states have internal predecessors, (5263), 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) [2021-11-20 07:14:55,816 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 277.0) internal successors, (5263), 19 states have internal predecessors, (5263), 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) [2021-11-20 07:14:55,816 INFO L186 Difference]: Start difference. First operand has 427 places, 746 transitions, 16977 flow. Second operand 18 states and 2951 transitions. [2021-11-20 07:14:55,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 899 transitions, 20582 flow [2021-11-20 07:14:57,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 899 transitions, 20378 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-11-20 07:14:57,278 INFO L242 Difference]: Finished difference. Result has 439 places, 796 transitions, 19675 flow [2021-11-20 07:14:57,279 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=16786, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=746, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=372, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=19675, PETRI_PLACES=439, PETRI_TRANSITIONS=796} [2021-11-20 07:14:57,283 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 166 predicate places. [2021-11-20 07:14:57,284 INFO L470 AbstractCegarLoop]: Abstraction has has 439 places, 796 transitions, 19675 flow [2021-11-20 07:14:57,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:57,284 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:14:57,284 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:14:57,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-11-20 07:14:57,285 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:14:57,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:14:57,286 INFO L85 PathProgramCache]: Analyzing trace with hash -1490650351, now seen corresponding path program 18 times [2021-11-20 07:14:57,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:14:57,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276073414] [2021-11-20 07:14:57,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:14:57,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:14:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:14:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:14:57,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:14:57,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276073414] [2021-11-20 07:14:57,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276073414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:14:57,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:14:57,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:14:57,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605001302] [2021-11-20 07:14:57,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:14:57,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:14:57,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:14:57,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:14:57,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:14:57,887 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:14:57,889 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 439 places, 796 transitions, 19675 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:14:57,889 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:14:57,889 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:14:57,889 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:02,110 INFO L129 PetriNetUnfolder]: 2328/4452 cut-off events. [2021-11-20 07:15:02,110 INFO L130 PetriNetUnfolder]: For 148347/148349 co-relation queries the response was YES. [2021-11-20 07:15:02,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46112 conditions, 4452 events. 2328/4452 cut-off events. For 148347/148349 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 29037 event pairs, 453 based on Foata normal form. 12/4419 useless extension candidates. Maximal degree in co-relation 45748. Up to 2188 conditions per place. [2021-11-20 07:15:02,210 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 343 selfloop transitions, 446 changer transitions 0/919 dead transitions. [2021-11-20 07:15:02,210 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 919 transitions, 22144 flow [2021-11-20 07:15:02,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-20 07:15:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-11-20 07:15:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 3104 transitions. [2021-11-20 07:15:02,217 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5897776933307999 [2021-11-20 07:15:02,217 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 3104 transitions. [2021-11-20 07:15:02,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 3104 transitions. [2021-11-20 07:15:02,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:02,219 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 3104 transitions. [2021-11-20 07:15:02,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 163.3684210526316) internal successors, (3104), 19 states have internal predecessors, (3104), 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) [2021-11-20 07:15:02,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 277.0) internal successors, (5540), 20 states have internal predecessors, (5540), 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) [2021-11-20 07:15:02,232 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 277.0) internal successors, (5540), 20 states have internal predecessors, (5540), 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) [2021-11-20 07:15:02,233 INFO L186 Difference]: Start difference. First operand has 439 places, 796 transitions, 19675 flow. Second operand 19 states and 3104 transitions. [2021-11-20 07:15:02,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 919 transitions, 22144 flow [2021-11-20 07:15:03,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 919 transitions, 21841 flow, removed 99 selfloop flow, removed 9 redundant places. [2021-11-20 07:15:03,809 INFO L242 Difference]: Finished difference. Result has 451 places, 814 transitions, 21149 flow [2021-11-20 07:15:03,810 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=19398, PETRI_DIFFERENCE_MINUEND_PLACES=430, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=796, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=428, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=21149, PETRI_PLACES=451, PETRI_TRANSITIONS=814} [2021-11-20 07:15:03,811 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 178 predicate places. [2021-11-20 07:15:03,811 INFO L470 AbstractCegarLoop]: Abstraction has has 451 places, 814 transitions, 21149 flow [2021-11-20 07:15:03,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:03,812 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:15:03,812 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:15:03,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-11-20 07:15:03,813 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:15:03,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:15:03,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1496846941, now seen corresponding path program 19 times [2021-11-20 07:15:03,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:15:03,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120495781] [2021-11-20 07:15:03,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:15:03,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:15:03,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:15:04,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:15:04,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:15:04,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120495781] [2021-11-20 07:15:04,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120495781] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:15:04,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:15:04,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:15:04,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163452727] [2021-11-20 07:15:04,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:15:04,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:15:04,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:15:04,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:15:04,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:15:04,770 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:15:04,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 814 transitions, 21149 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:04,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:15:04,773 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:15:04,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:07,851 INFO L129 PetriNetUnfolder]: 2310/4424 cut-off events. [2021-11-20 07:15:07,851 INFO L130 PetriNetUnfolder]: For 160085/160087 co-relation queries the response was YES. [2021-11-20 07:15:07,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47728 conditions, 4424 events. 2310/4424 cut-off events. For 160085/160087 co-relation queries the response was YES. Maximal size of possible extension queue 297. Compared 28818 event pairs, 473 based on Foata normal form. 12/4387 useless extension candidates. Maximal degree in co-relation 47361. Up to 2179 conditions per place. [2021-11-20 07:15:07,957 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 395 selfloop transitions, 390 changer transitions 0/915 dead transitions. [2021-11-20 07:15:07,958 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 465 places, 915 transitions, 23224 flow [2021-11-20 07:15:07,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:15:07,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:15:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2479 transitions. [2021-11-20 07:15:07,962 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5966305655836341 [2021-11-20 07:15:07,963 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2479 transitions. [2021-11-20 07:15:07,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2479 transitions. [2021-11-20 07:15:07,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:07,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2479 transitions. [2021-11-20 07:15:07,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.26666666666668) internal successors, (2479), 15 states have internal predecessors, (2479), 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) [2021-11-20 07:15:07,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:07,975 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:07,975 INFO L186 Difference]: Start difference. First operand has 451 places, 814 transitions, 21149 flow. Second operand 15 states and 2479 transitions. [2021-11-20 07:15:07,975 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 465 places, 915 transitions, 23224 flow [2021-11-20 07:15:09,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 454 places, 915 transitions, 22896 flow, removed 54 selfloop flow, removed 11 redundant places. [2021-11-20 07:15:09,823 INFO L242 Difference]: Finished difference. Result has 457 places, 822 transitions, 22041 flow [2021-11-20 07:15:09,824 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=20827, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=814, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=382, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=430, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=22041, PETRI_PLACES=457, PETRI_TRANSITIONS=822} [2021-11-20 07:15:09,824 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 184 predicate places. [2021-11-20 07:15:09,824 INFO L470 AbstractCegarLoop]: Abstraction has has 457 places, 822 transitions, 22041 flow [2021-11-20 07:15:09,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:09,825 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:15:09,825 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:15:09,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-11-20 07:15:09,825 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:15:09,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:15:09,826 INFO L85 PathProgramCache]: Analyzing trace with hash 593885033, now seen corresponding path program 20 times [2021-11-20 07:15:09,826 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:15:09,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157449889] [2021-11-20 07:15:09,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:15:09,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:15:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:15:10,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:15:10,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:15:10,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157449889] [2021-11-20 07:15:10,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157449889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:15:10,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:15:10,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:15:10,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082653905] [2021-11-20 07:15:10,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:15:10,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:15:10,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:15:10,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:15:10,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:15:10,411 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:15:10,413 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 457 places, 822 transitions, 22041 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:10,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:15:10,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:15:10,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:14,502 INFO L129 PetriNetUnfolder]: 2328/4452 cut-off events. [2021-11-20 07:15:14,502 INFO L130 PetriNetUnfolder]: For 174040/174042 co-relation queries the response was YES. [2021-11-20 07:15:14,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49594 conditions, 4452 events. 2328/4452 cut-off events. For 174040/174042 co-relation queries the response was YES. Maximal size of possible extension queue 299. Compared 29031 event pairs, 599 based on Foata normal form. 12/4415 useless extension candidates. Maximal degree in co-relation 49226. Up to 2654 conditions per place. [2021-11-20 07:15:14,586 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 439 selfloop transitions, 355 changer transitions 0/924 dead transitions. [2021-11-20 07:15:14,587 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 924 transitions, 24238 flow [2021-11-20 07:15:14,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-20 07:15:14,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-11-20 07:15:14,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2635 transitions. [2021-11-20 07:15:14,590 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5945397111913358 [2021-11-20 07:15:14,590 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2635 transitions. [2021-11-20 07:15:14,591 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2635 transitions. [2021-11-20 07:15:14,591 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:14,592 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2635 transitions. [2021-11-20 07:15:14,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 164.6875) internal successors, (2635), 16 states have internal predecessors, (2635), 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) [2021-11-20 07:15:14,598 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 277.0) internal successors, (4709), 17 states have internal predecessors, (4709), 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) [2021-11-20 07:15:14,598 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 277.0) internal successors, (4709), 17 states have internal predecessors, (4709), 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) [2021-11-20 07:15:14,598 INFO L186 Difference]: Start difference. First operand has 457 places, 822 transitions, 22041 flow. Second operand 16 states and 2635 transitions. [2021-11-20 07:15:14,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 924 transitions, 24238 flow [2021-11-20 07:15:16,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 465 places, 924 transitions, 23667 flow, removed 93 selfloop flow, removed 7 redundant places. [2021-11-20 07:15:16,038 INFO L242 Difference]: Finished difference. Result has 467 places, 831 transitions, 22592 flow [2021-11-20 07:15:16,039 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=21503, PETRI_DIFFERENCE_MINUEND_PLACES=450, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=822, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=346, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=22592, PETRI_PLACES=467, PETRI_TRANSITIONS=831} [2021-11-20 07:15:16,040 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 194 predicate places. [2021-11-20 07:15:16,040 INFO L470 AbstractCegarLoop]: Abstraction has has 467 places, 831 transitions, 22592 flow [2021-11-20 07:15:16,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:16,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:15:16,041 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:15:16,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-11-20 07:15:16,042 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:15:16,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:15:16,042 INFO L85 PathProgramCache]: Analyzing trace with hash 443141805, now seen corresponding path program 21 times [2021-11-20 07:15:16,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:15:16,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285285658] [2021-11-20 07:15:16,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:15:16,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:15:16,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:15:16,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:15:16,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:15:16,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285285658] [2021-11-20 07:15:16,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285285658] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:15:16,941 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:15:16,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:15:16,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741725692] [2021-11-20 07:15:16,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:15:16,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:15:16,942 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:15:16,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:15:16,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:15:16,946 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:15:16,948 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 831 transitions, 22592 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:16,948 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:15:16,948 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:15:16,948 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:21,062 INFO L129 PetriNetUnfolder]: 2400/4564 cut-off events. [2021-11-20 07:15:21,063 INFO L130 PetriNetUnfolder]: For 190018/190020 co-relation queries the response was YES. [2021-11-20 07:15:21,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51552 conditions, 4564 events. 2400/4564 cut-off events. For 190018/190020 co-relation queries the response was YES. Maximal size of possible extension queue 307. Compared 29919 event pairs, 607 based on Foata normal form. 12/4527 useless extension candidates. Maximal degree in co-relation 51183. Up to 2685 conditions per place. [2021-11-20 07:15:21,163 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 458 selfloop transitions, 356 changer transitions 0/944 dead transitions. [2021-11-20 07:15:21,164 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 481 places, 944 transitions, 25260 flow [2021-11-20 07:15:21,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:15:21,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:15:21,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2481 transitions. [2021-11-20 07:15:21,167 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5971119133574008 [2021-11-20 07:15:21,167 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2481 transitions. [2021-11-20 07:15:21,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2481 transitions. [2021-11-20 07:15:21,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:21,169 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2481 transitions. [2021-11-20 07:15:21,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.4) internal successors, (2481), 15 states have internal predecessors, (2481), 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) [2021-11-20 07:15:21,177 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:21,178 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:21,179 INFO L186 Difference]: Start difference. First operand has 467 places, 831 transitions, 22592 flow. Second operand 15 states and 2481 transitions. [2021-11-20 07:15:21,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 481 places, 944 transitions, 25260 flow [2021-11-20 07:15:22,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 944 transitions, 24478 flow, removed 49 selfloop flow, removed 14 redundant places. [2021-11-20 07:15:22,819 INFO L242 Difference]: Finished difference. Result has 470 places, 849 transitions, 23230 flow [2021-11-20 07:15:22,820 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=21838, PETRI_DIFFERENCE_MINUEND_PLACES=453, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=831, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=338, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=488, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=23230, PETRI_PLACES=470, PETRI_TRANSITIONS=849} [2021-11-20 07:15:22,821 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 197 predicate places. [2021-11-20 07:15:22,821 INFO L470 AbstractCegarLoop]: Abstraction has has 470 places, 849 transitions, 23230 flow [2021-11-20 07:15:22,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:22,822 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:15:22,822 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:15:22,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-20 07:15:22,822 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:15:22,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:15:22,823 INFO L85 PathProgramCache]: Analyzing trace with hash 252892635, now seen corresponding path program 22 times [2021-11-20 07:15:22,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:15:22,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347160114] [2021-11-20 07:15:22,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:15:22,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:15:22,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:15:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:15:23,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:15:23,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347160114] [2021-11-20 07:15:23,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347160114] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:15:23,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:15:23,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:15:23,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850193015] [2021-11-20 07:15:23,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:15:23,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:15:23,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:15:23,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:15:23,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:15:23,420 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:15:23,422 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 849 transitions, 23230 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:23,422 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:15:23,422 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:15:23,422 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:27,367 INFO L129 PetriNetUnfolder]: 2447/4651 cut-off events. [2021-11-20 07:15:27,367 INFO L130 PetriNetUnfolder]: For 193808/193810 co-relation queries the response was YES. [2021-11-20 07:15:27,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53296 conditions, 4651 events. 2447/4651 cut-off events. For 193808/193810 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 30657 event pairs, 666 based on Foata normal form. 12/4614 useless extension candidates. Maximal degree in co-relation 52928. Up to 2895 conditions per place. [2021-11-20 07:15:27,474 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 474 selfloop transitions, 350 changer transitions 0/954 dead transitions. [2021-11-20 07:15:27,474 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 483 places, 954 transitions, 25983 flow [2021-11-20 07:15:27,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:15:27,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 07:15:27,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2319 transitions. [2021-11-20 07:15:27,478 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5979886539453326 [2021-11-20 07:15:27,478 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2319 transitions. [2021-11-20 07:15:27,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2319 transitions. [2021-11-20 07:15:27,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:27,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2319 transitions. [2021-11-20 07:15:27,483 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 165.64285714285714) internal successors, (2319), 14 states have internal predecessors, (2319), 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) [2021-11-20 07:15:27,487 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:15:27,488 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:15:27,489 INFO L186 Difference]: Start difference. First operand has 470 places, 849 transitions, 23230 flow. Second operand 14 states and 2319 transitions. [2021-11-20 07:15:27,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 483 places, 954 transitions, 25983 flow [2021-11-20 07:15:29,174 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 471 places, 954 transitions, 24856 flow, removed 38 selfloop flow, removed 12 redundant places. [2021-11-20 07:15:29,204 INFO L242 Difference]: Finished difference. Result has 474 places, 867 transitions, 24097 flow [2021-11-20 07:15:29,205 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=22135, PETRI_DIFFERENCE_MINUEND_PLACES=458, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=849, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=332, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=506, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=24097, PETRI_PLACES=474, PETRI_TRANSITIONS=867} [2021-11-20 07:15:29,206 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 201 predicate places. [2021-11-20 07:15:29,206 INFO L470 AbstractCegarLoop]: Abstraction has has 474 places, 867 transitions, 24097 flow [2021-11-20 07:15:29,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:29,206 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:15:29,207 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:15:29,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-20 07:15:29,207 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:15:29,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:15:29,207 INFO L85 PathProgramCache]: Analyzing trace with hash 254564775, now seen corresponding path program 23 times [2021-11-20 07:15:29,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:15:29,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549134368] [2021-11-20 07:15:29,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:15:29,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:15:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:15:29,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:15:29,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:15:29,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549134368] [2021-11-20 07:15:29,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549134368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:15:29,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:15:29,958 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:15:29,958 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506001624] [2021-11-20 07:15:29,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:15:29,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:15:29,959 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:15:29,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:15:29,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:15:29,961 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:15:29,963 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 867 transitions, 24097 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:29,963 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:15:29,963 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:15:29,963 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:33,243 INFO L129 PetriNetUnfolder]: 2449/4668 cut-off events. [2021-11-20 07:15:33,243 INFO L130 PetriNetUnfolder]: For 198312/198314 co-relation queries the response was YES. [2021-11-20 07:15:33,295 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53364 conditions, 4668 events. 2449/4668 cut-off events. For 198312/198314 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 30888 event pairs, 645 based on Foata normal form. 12/4631 useless extension candidates. Maximal degree in co-relation 52994. Up to 2840 conditions per place. [2021-11-20 07:15:33,327 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 476 selfloop transitions, 367 changer transitions 0/973 dead transitions. [2021-11-20 07:15:33,327 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 488 places, 973 transitions, 26813 flow [2021-11-20 07:15:33,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:15:33,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:15:33,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2476 transitions. [2021-11-20 07:15:33,329 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5959085439229843 [2021-11-20 07:15:33,330 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2476 transitions. [2021-11-20 07:15:33,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2476 transitions. [2021-11-20 07:15:33,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:33,330 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2476 transitions. [2021-11-20 07:15:33,332 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 165.06666666666666) internal successors, (2476), 15 states have internal predecessors, (2476), 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) [2021-11-20 07:15:33,335 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:33,336 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:33,336 INFO L186 Difference]: Start difference. First operand has 474 places, 867 transitions, 24097 flow. Second operand 15 states and 2476 transitions. [2021-11-20 07:15:33,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 488 places, 973 transitions, 26813 flow [2021-11-20 07:15:34,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 479 places, 973 transitions, 26560 flow, removed 17 selfloop flow, removed 9 redundant places. [2021-11-20 07:15:34,804 INFO L242 Difference]: Finished difference. Result has 482 places, 884 transitions, 25524 flow [2021-11-20 07:15:34,805 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=23852, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=867, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=350, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=508, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=25524, PETRI_PLACES=482, PETRI_TRANSITIONS=884} [2021-11-20 07:15:34,806 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 209 predicate places. [2021-11-20 07:15:34,806 INFO L470 AbstractCegarLoop]: Abstraction has has 482 places, 884 transitions, 25524 flow [2021-11-20 07:15:34,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:34,806 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:15:34,806 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:15:34,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-20 07:15:34,806 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:15:34,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:15:34,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1872125846, now seen corresponding path program 1 times [2021-11-20 07:15:34,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:15:34,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964687993] [2021-11-20 07:15:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:15:34,810 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:15:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:15:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:15:35,307 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:15:35,307 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964687993] [2021-11-20 07:15:35,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964687993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:15:35,307 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:15:35,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:15:35,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151859371] [2021-11-20 07:15:35,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:15:35,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:15:35,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:15:35,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:15:35,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:15:35,311 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:15:35,313 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 482 places, 884 transitions, 25524 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:35,313 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:15:35,313 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:15:35,313 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:38,890 INFO L129 PetriNetUnfolder]: 3647/6703 cut-off events. [2021-11-20 07:15:38,890 INFO L130 PetriNetUnfolder]: For 372754/372810 co-relation queries the response was YES. [2021-11-20 07:15:39,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 79806 conditions, 6703 events. 3647/6703 cut-off events. For 372754/372810 co-relation queries the response was YES. Maximal size of possible extension queue 364. Compared 45188 event pairs, 746 based on Foata normal form. 70/6699 useless extension candidates. Maximal degree in co-relation 79446. Up to 3465 conditions per place. [2021-11-20 07:15:39,050 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 874 selfloop transitions, 508 changer transitions 0/1531 dead transitions. [2021-11-20 07:15:39,050 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 495 places, 1531 transitions, 49054 flow [2021-11-20 07:15:39,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:15:39,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 07:15:39,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2339 transitions. [2021-11-20 07:15:39,052 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6031459515214028 [2021-11-20 07:15:39,052 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2339 transitions. [2021-11-20 07:15:39,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2339 transitions. [2021-11-20 07:15:39,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:39,053 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2339 transitions. [2021-11-20 07:15:39,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 167.07142857142858) internal successors, (2339), 14 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:39,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:15:39,057 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:15:39,057 INFO L186 Difference]: Start difference. First operand has 482 places, 884 transitions, 25524 flow. Second operand 14 states and 2339 transitions. [2021-11-20 07:15:39,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 495 places, 1531 transitions, 49054 flow [2021-11-20 07:15:42,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 486 places, 1531 transitions, 48619 flow, removed 19 selfloop flow, removed 9 redundant places. [2021-11-20 07:15:42,186 INFO L242 Difference]: Finished difference. Result has 493 places, 1197 transitions, 41455 flow [2021-11-20 07:15:42,188 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=25311, PETRI_DIFFERENCE_MINUEND_PLACES=473, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=884, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=196, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=505, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=41455, PETRI_PLACES=493, PETRI_TRANSITIONS=1197} [2021-11-20 07:15:42,188 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 220 predicate places. [2021-11-20 07:15:42,188 INFO L470 AbstractCegarLoop]: Abstraction has has 493 places, 1197 transitions, 41455 flow [2021-11-20 07:15:42,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:42,189 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:15:42,189 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:15:42,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-20 07:15:42,190 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:15:42,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:15:42,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1525883442, now seen corresponding path program 2 times [2021-11-20 07:15:42,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:15:42,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141853928] [2021-11-20 07:15:42,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:15:42,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:15:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:15:43,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:15:43,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:15:43,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141853928] [2021-11-20 07:15:43,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141853928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:15:43,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:15:43,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:15:43,080 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235374220] [2021-11-20 07:15:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:15:43,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:15:43,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:15:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:15:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:15:43,084 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:15:43,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 493 places, 1197 transitions, 41455 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:43,086 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:15:43,086 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:15:43,086 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:48,205 INFO L129 PetriNetUnfolder]: 3904/7146 cut-off events. [2021-11-20 07:15:48,205 INFO L130 PetriNetUnfolder]: For 416381/416469 co-relation queries the response was YES. [2021-11-20 07:15:48,360 INFO L84 FinitePrefix]: Finished finitePrefix Result has 90055 conditions, 7146 events. 3904/7146 cut-off events. For 416381/416469 co-relation queries the response was YES. Maximal size of possible extension queue 391. Compared 48356 event pairs, 661 based on Foata normal form. 75/7149 useless extension candidates. Maximal degree in co-relation 89687. Up to 3011 conditions per place. [2021-11-20 07:15:48,435 INFO L132 encePairwiseOnDemand]: 261/277 looper letters, 1331 selfloop transitions, 537 changer transitions 0/2017 dead transitions. [2021-11-20 07:15:48,436 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 507 places, 2017 transitions, 68845 flow [2021-11-20 07:15:48,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:15:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:15:48,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2500 transitions. [2021-11-20 07:15:48,438 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.601684717208183 [2021-11-20 07:15:48,438 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2500 transitions. [2021-11-20 07:15:48,438 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2500 transitions. [2021-11-20 07:15:48,439 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:48,439 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2500 transitions. [2021-11-20 07:15:48,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 166.66666666666666) internal successors, (2500), 15 states have internal predecessors, (2500), 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) [2021-11-20 07:15:48,444 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:48,445 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:48,445 INFO L186 Difference]: Start difference. First operand has 493 places, 1197 transitions, 41455 flow. Second operand 15 states and 2500 transitions. [2021-11-20 07:15:48,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 507 places, 2017 transitions, 68845 flow [2021-11-20 07:15:51,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 502 places, 2017 transitions, 68818 flow, removed 9 selfloop flow, removed 5 redundant places. [2021-11-20 07:15:51,999 INFO L242 Difference]: Finished difference. Result has 507 places, 1406 transitions, 51519 flow [2021-11-20 07:15:52,000 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=41436, PETRI_DIFFERENCE_MINUEND_PLACES=488, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=351, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=766, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=51519, PETRI_PLACES=507, PETRI_TRANSITIONS=1406} [2021-11-20 07:15:52,000 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 234 predicate places. [2021-11-20 07:15:52,000 INFO L470 AbstractCegarLoop]: Abstraction has has 507 places, 1406 transitions, 51519 flow [2021-11-20 07:15:52,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:52,001 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:15:52,001 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:15:52,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-11-20 07:15:52,001 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:15:52,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:15:52,002 INFO L85 PathProgramCache]: Analyzing trace with hash 1149059474, now seen corresponding path program 3 times [2021-11-20 07:15:52,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:15:52,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070158360] [2021-11-20 07:15:52,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:15:52,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:15:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:15:52,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:15:52,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:15:52,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070158360] [2021-11-20 07:15:52,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070158360] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:15:52,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:15:52,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:15:52,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954915749] [2021-11-20 07:15:52,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:15:52,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:15:52,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:15:52,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:15:52,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:15:52,503 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:15:52,505 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 507 places, 1406 transitions, 51519 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:15:52,505 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:15:52,505 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:15:52,505 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:15:58,963 INFO L129 PetriNetUnfolder]: 4141/7520 cut-off events. [2021-11-20 07:15:58,963 INFO L130 PetriNetUnfolder]: For 492837/492924 co-relation queries the response was YES. [2021-11-20 07:15:59,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101057 conditions, 7520 events. 4141/7520 cut-off events. For 492837/492924 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 51493 event pairs, 689 based on Foata normal form. 72/7507 useless extension candidates. Maximal degree in co-relation 100682. Up to 3860 conditions per place. [2021-11-20 07:15:59,108 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 899 selfloop transitions, 852 changer transitions 0/1900 dead transitions. [2021-11-20 07:15:59,108 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 521 places, 1900 transitions, 69409 flow [2021-11-20 07:15:59,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:15:59,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:15:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2505 transitions. [2021-11-20 07:15:59,111 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6028880866425993 [2021-11-20 07:15:59,112 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2505 transitions. [2021-11-20 07:15:59,112 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2505 transitions. [2021-11-20 07:15:59,113 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:15:59,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2505 transitions. [2021-11-20 07:15:59,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 167.0) internal successors, (2505), 15 states have internal predecessors, (2505), 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) [2021-11-20 07:15:59,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:59,119 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:15:59,120 INFO L186 Difference]: Start difference. First operand has 507 places, 1406 transitions, 51519 flow. Second operand 15 states and 2505 transitions. [2021-11-20 07:15:59,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 521 places, 1900 transitions, 69409 flow [2021-11-20 07:16:03,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 512 places, 1900 transitions, 68992 flow, removed 85 selfloop flow, removed 9 redundant places. [2021-11-20 07:16:03,101 INFO L242 Difference]: Finished difference. Result has 515 places, 1576 transitions, 61523 flow [2021-11-20 07:16:03,103 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=51135, PETRI_DIFFERENCE_MINUEND_PLACES=498, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=690, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=673, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=61523, PETRI_PLACES=515, PETRI_TRANSITIONS=1576} [2021-11-20 07:16:03,103 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 242 predicate places. [2021-11-20 07:16:03,104 INFO L470 AbstractCegarLoop]: Abstraction has has 515 places, 1576 transitions, 61523 flow [2021-11-20 07:16:03,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:16:03,104 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:03,104 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:16:03,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-20 07:16:03,105 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:16:03,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:03,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1818807866, now seen corresponding path program 4 times [2021-11-20 07:16:03,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:03,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378953630] [2021-11-20 07:16:03,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:03,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:16:03,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:03,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378953630] [2021-11-20 07:16:03,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378953630] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:16:03,648 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:16:03,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:16:03,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619206200] [2021-11-20 07:16:03,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:16:03,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:16:03,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:03,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:16:03,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:16:03,651 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:16:03,653 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 515 places, 1576 transitions, 61523 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:16:03,653 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:03,653 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:16:03,653 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:10,732 INFO L129 PetriNetUnfolder]: 4437/8110 cut-off events. [2021-11-20 07:16:10,732 INFO L130 PetriNetUnfolder]: For 603219/603310 co-relation queries the response was YES. [2021-11-20 07:16:10,832 INFO L84 FinitePrefix]: Finished finitePrefix Result has 114365 conditions, 8110 events. 4437/8110 cut-off events. For 603219/603310 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 56705 event pairs, 1038 based on Foata normal form. 72/8105 useless extension candidates. Maximal degree in co-relation 113988. Up to 4919 conditions per place. [2021-11-20 07:16:10,897 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 728 selfloop transitions, 1053 changer transitions 0/1930 dead transitions. [2021-11-20 07:16:10,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 527 places, 1930 transitions, 79213 flow [2021-11-20 07:16:10,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-20 07:16:10,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-11-20 07:16:10,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2179 transitions. [2021-11-20 07:16:10,899 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.605109691752291 [2021-11-20 07:16:10,899 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2179 transitions. [2021-11-20 07:16:10,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2179 transitions. [2021-11-20 07:16:10,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:10,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2179 transitions. [2021-11-20 07:16:10,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 167.6153846153846) internal successors, (2179), 13 states have internal predecessors, (2179), 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) [2021-11-20 07:16:10,903 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 277.0) internal successors, (3878), 14 states have internal predecessors, (3878), 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) [2021-11-20 07:16:10,903 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 277.0) internal successors, (3878), 14 states have internal predecessors, (3878), 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) [2021-11-20 07:16:10,903 INFO L186 Difference]: Start difference. First operand has 515 places, 1576 transitions, 61523 flow. Second operand 13 states and 2179 transitions. [2021-11-20 07:16:10,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 527 places, 1930 transitions, 79213 flow [2021-11-20 07:16:16,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 520 places, 1930 transitions, 78969 flow, removed 56 selfloop flow, removed 7 redundant places. [2021-11-20 07:16:16,226 INFO L242 Difference]: Finished difference. Result has 524 places, 1792 transitions, 77942 flow [2021-11-20 07:16:16,227 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=61293, PETRI_DIFFERENCE_MINUEND_PLACES=508, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1576, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=837, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=638, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=77942, PETRI_PLACES=524, PETRI_TRANSITIONS=1792} [2021-11-20 07:16:16,228 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 251 predicate places. [2021-11-20 07:16:16,228 INFO L470 AbstractCegarLoop]: Abstraction has has 524 places, 1792 transitions, 77942 flow [2021-11-20 07:16:16,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:16:16,228 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:16,229 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:16:16,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-20 07:16:16,229 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:16:16,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:16,230 INFO L85 PathProgramCache]: Analyzing trace with hash 551809120, now seen corresponding path program 5 times [2021-11-20 07:16:16,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:16,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840493001] [2021-11-20 07:16:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:16,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:16,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:17,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:16:17,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:17,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840493001] [2021-11-20 07:16:17,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840493001] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:16:17,097 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:16:17,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:16:17,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593732559] [2021-11-20 07:16:17,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:16:17,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:16:17,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:17,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:16:17,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:16:17,100 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:16:17,102 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 1792 transitions, 77942 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:16:17,102 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:17,102 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:16:17,102 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:25,706 INFO L129 PetriNetUnfolder]: 4832/8766 cut-off events. [2021-11-20 07:16:25,706 INFO L130 PetriNetUnfolder]: For 751021/751155 co-relation queries the response was YES. [2021-11-20 07:16:25,817 INFO L84 FinitePrefix]: Finished finitePrefix Result has 129912 conditions, 8766 events. 4832/8766 cut-off events. For 751021/751155 co-relation queries the response was YES. Maximal size of possible extension queue 513. Compared 61558 event pairs, 706 based on Foata normal form. 105/8791 useless extension candidates. Maximal degree in co-relation 129531. Up to 4279 conditions per place. [2021-11-20 07:16:25,890 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 1277 selfloop transitions, 1001 changer transitions 0/2427 dead transitions. [2021-11-20 07:16:25,890 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 538 places, 2427 transitions, 104021 flow [2021-11-20 07:16:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:16:25,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:16:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2500 transitions. [2021-11-20 07:16:25,892 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.601684717208183 [2021-11-20 07:16:25,892 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2500 transitions. [2021-11-20 07:16:25,892 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2500 transitions. [2021-11-20 07:16:25,893 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:25,893 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2500 transitions. [2021-11-20 07:16:25,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 166.66666666666666) internal successors, (2500), 15 states have internal predecessors, (2500), 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) [2021-11-20 07:16:25,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:16:25,897 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:16:25,897 INFO L186 Difference]: Start difference. First operand has 524 places, 1792 transitions, 77942 flow. Second operand 15 states and 2500 transitions. [2021-11-20 07:16:25,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 538 places, 2427 transitions, 104021 flow [2021-11-20 07:16:31,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 530 places, 2427 transitions, 103354 flow, removed 15 selfloop flow, removed 8 redundant places. [2021-11-20 07:16:32,001 INFO L242 Difference]: Finished difference. Result has 536 places, 2046 transitions, 92810 flow [2021-11-20 07:16:32,003 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=77527, PETRI_DIFFERENCE_MINUEND_PLACES=516, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1792, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=755, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=904, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=92810, PETRI_PLACES=536, PETRI_TRANSITIONS=2046} [2021-11-20 07:16:32,003 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 263 predicate places. [2021-11-20 07:16:32,003 INFO L470 AbstractCegarLoop]: Abstraction has has 536 places, 2046 transitions, 92810 flow [2021-11-20 07:16:32,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:16:32,004 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:32,004 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:16:32,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-11-20 07:16:32,004 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:16:32,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:32,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1309806124, now seen corresponding path program 6 times [2021-11-20 07:16:32,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:32,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036203907] [2021-11-20 07:16:32,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:32,005 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:32,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:16:32,598 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:32,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036203907] [2021-11-20 07:16:32,598 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036203907] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:16:32,598 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:16:32,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:16:32,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367036361] [2021-11-20 07:16:32,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:16:32,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:16:32,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:32,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:16:32,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:16:32,601 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:16:32,602 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 536 places, 2046 transitions, 92810 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:16:32,603 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:32,603 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:16:32,603 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:16:42,646 INFO L129 PetriNetUnfolder]: 5188/9441 cut-off events. [2021-11-20 07:16:42,647 INFO L130 PetriNetUnfolder]: For 869754/869881 co-relation queries the response was YES. [2021-11-20 07:16:42,815 INFO L84 FinitePrefix]: Finished finitePrefix Result has 147030 conditions, 9441 events. 5188/9441 cut-off events. For 869754/869881 co-relation queries the response was YES. Maximal size of possible extension queue 564. Compared 67632 event pairs, 1116 based on Foata normal form. 105/9451 useless extension candidates. Maximal degree in co-relation 146642. Up to 5589 conditions per place. [2021-11-20 07:16:42,914 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 865 selfloop transitions, 1431 changer transitions 0/2445 dead transitions. [2021-11-20 07:16:42,914 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 550 places, 2445 transitions, 112903 flow [2021-11-20 07:16:42,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:16:42,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:16:42,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2491 transitions. [2021-11-20 07:16:42,917 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5995186522262335 [2021-11-20 07:16:42,917 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2491 transitions. [2021-11-20 07:16:42,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2491 transitions. [2021-11-20 07:16:42,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:16:42,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2491 transitions. [2021-11-20 07:16:42,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 166.06666666666666) internal successors, (2491), 15 states have internal predecessors, (2491), 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) [2021-11-20 07:16:42,924 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:16:42,924 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:16:42,924 INFO L186 Difference]: Start difference. First operand has 536 places, 2046 transitions, 92810 flow. Second operand 15 states and 2491 transitions. [2021-11-20 07:16:42,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 550 places, 2445 transitions, 112903 flow [2021-11-20 07:16:51,205 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 2445 transitions, 112375 flow, removed 143 selfloop flow, removed 8 redundant places. [2021-11-20 07:16:51,305 INFO L242 Difference]: Finished difference. Result has 549 places, 2301 transitions, 111801 flow [2021-11-20 07:16:51,307 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=92287, PETRI_DIFFERENCE_MINUEND_PLACES=528, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2046, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1181, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=764, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=111801, PETRI_PLACES=549, PETRI_TRANSITIONS=2301} [2021-11-20 07:16:51,307 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 276 predicate places. [2021-11-20 07:16:51,307 INFO L470 AbstractCegarLoop]: Abstraction has has 549 places, 2301 transitions, 111801 flow [2021-11-20 07:16:51,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:16:51,308 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:16:51,308 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:16:51,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-11-20 07:16:51,308 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:16:51,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:16:51,308 INFO L85 PathProgramCache]: Analyzing trace with hash 209969820, now seen corresponding path program 7 times [2021-11-20 07:16:51,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:16:51,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488678782] [2021-11-20 07:16:51,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:16:51,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:16:51,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:16:52,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:16:52,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:16:52,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488678782] [2021-11-20 07:16:52,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488678782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:16:52,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:16:52,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:16:52,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986639424] [2021-11-20 07:16:52,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:16:52,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:16:52,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:16:52,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:16:52,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:16:52,019 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:16:52,021 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 549 places, 2301 transitions, 111801 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:16:52,021 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:16:52,021 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:16:52,021 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:17:03,575 INFO L129 PetriNetUnfolder]: 5251/9601 cut-off events. [2021-11-20 07:17:03,575 INFO L130 PetriNetUnfolder]: For 999042/999208 co-relation queries the response was YES. [2021-11-20 07:17:03,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 156203 conditions, 9601 events. 5251/9601 cut-off events. For 999042/999208 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 69143 event pairs, 719 based on Foata normal form. 129/9633 useless extension candidates. Maximal degree in co-relation 155808. Up to 4955 conditions per place. [2021-11-20 07:17:03,845 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 1393 selfloop transitions, 1224 changer transitions 0/2766 dead transitions. [2021-11-20 07:17:03,845 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 2766 transitions, 131805 flow [2021-11-20 07:17:03,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:17:03,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:17:03,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2499 transitions. [2021-11-20 07:17:03,847 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6014440433212996 [2021-11-20 07:17:03,847 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2499 transitions. [2021-11-20 07:17:03,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2499 transitions. [2021-11-20 07:17:03,848 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:17:03,848 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2499 transitions. [2021-11-20 07:17:03,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 166.6) internal successors, (2499), 15 states have internal predecessors, (2499), 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) [2021-11-20 07:17:03,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:17:03,856 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:17:03,856 INFO L186 Difference]: Start difference. First operand has 549 places, 2301 transitions, 111801 flow. Second operand 15 states and 2499 transitions. [2021-11-20 07:17:03,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 2766 transitions, 131805 flow [2021-11-20 07:17:13,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 556 places, 2766 transitions, 131359 flow, removed 78 selfloop flow, removed 7 redundant places. [2021-11-20 07:17:13,601 INFO L242 Difference]: Finished difference. Result has 561 places, 2462 transitions, 123811 flow [2021-11-20 07:17:13,604 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=111409, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2301, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1068, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1114, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=123811, PETRI_PLACES=561, PETRI_TRANSITIONS=2462} [2021-11-20 07:17:13,604 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 288 predicate places. [2021-11-20 07:17:13,604 INFO L470 AbstractCegarLoop]: Abstraction has has 561 places, 2462 transitions, 123811 flow [2021-11-20 07:17:13,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:17:13,605 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:17:13,605 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:17:13,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-11-20 07:17:13,605 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:17:13,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:17:13,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1021384722, now seen corresponding path program 8 times [2021-11-20 07:17:13,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:17:13,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548452230] [2021-11-20 07:17:13,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:17:13,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:17:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:17:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:17:14,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:17:14,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548452230] [2021-11-20 07:17:14,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548452230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:17:14,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:17:14,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:17:14,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224134125] [2021-11-20 07:17:14,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:17:14,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:17:14,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:17:14,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:17:14,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:17:14,342 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:17:14,343 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 561 places, 2462 transitions, 123811 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:17:14,343 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:17:14,344 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:17:14,344 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:17:27,920 INFO L129 PetriNetUnfolder]: 5841/10620 cut-off events. [2021-11-20 07:17:27,920 INFO L130 PetriNetUnfolder]: For 1202432/1202631 co-relation queries the response was YES. [2021-11-20 07:17:28,073 INFO L84 FinitePrefix]: Finished finitePrefix Result has 180843 conditions, 10620 events. 5841/10620 cut-off events. For 1202432/1202631 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 77573 event pairs, 1163 based on Foata normal form. 147/10656 useless extension candidates. Maximal degree in co-relation 180442. Up to 5968 conditions per place. [2021-11-20 07:17:28,171 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 1109 selfloop transitions, 1749 changer transitions 0/3007 dead transitions. [2021-11-20 07:17:28,171 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 3007 transitions, 152702 flow [2021-11-20 07:17:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:17:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:17:28,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2493 transitions. [2021-11-20 07:17:28,174 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-11-20 07:17:28,174 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2493 transitions. [2021-11-20 07:17:28,174 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2493 transitions. [2021-11-20 07:17:28,174 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:17:28,174 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2493 transitions. [2021-11-20 07:17:28,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 166.2) internal successors, (2493), 15 states have internal predecessors, (2493), 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) [2021-11-20 07:17:28,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:17:28,179 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:17:28,179 INFO L186 Difference]: Start difference. First operand has 561 places, 2462 transitions, 123811 flow. Second operand 15 states and 2493 transitions. [2021-11-20 07:17:28,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 3007 transitions, 152702 flow [2021-11-20 07:17:40,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 567 places, 3007 transitions, 152189 flow, removed 144 selfloop flow, removed 8 redundant places. [2021-11-20 07:17:40,356 INFO L242 Difference]: Finished difference. Result has 574 places, 2815 transitions, 148241 flow [2021-11-20 07:17:40,359 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=123308, PETRI_DIFFERENCE_MINUEND_PLACES=553, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1419, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=908, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=148241, PETRI_PLACES=574, PETRI_TRANSITIONS=2815} [2021-11-20 07:17:40,359 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 301 predicate places. [2021-11-20 07:17:40,360 INFO L470 AbstractCegarLoop]: Abstraction has has 574 places, 2815 transitions, 148241 flow [2021-11-20 07:17:40,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:17:40,360 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:17:40,360 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:17:40,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-11-20 07:17:40,361 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:17:40,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:17:40,361 INFO L85 PathProgramCache]: Analyzing trace with hash 7986840, now seen corresponding path program 9 times [2021-11-20 07:17:40,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:17:40,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119701921] [2021-11-20 07:17:40,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:17:40,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:17:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:17:40,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:17:40,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:17:40,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119701921] [2021-11-20 07:17:40,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119701921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:17:40,915 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:17:40,916 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:17:40,916 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390590191] [2021-11-20 07:17:40,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:17:40,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:17:40,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:17:40,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:17:40,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:17:40,918 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:17:40,919 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 574 places, 2815 transitions, 148241 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:17:40,919 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:17:40,919 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:17:40,919 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:17:55,103 INFO L129 PetriNetUnfolder]: 5850/10598 cut-off events. [2021-11-20 07:17:55,103 INFO L130 PetriNetUnfolder]: For 1274751/1274957 co-relation queries the response was YES. [2021-11-20 07:17:55,308 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187730 conditions, 10598 events. 5850/10598 cut-off events. For 1274751/1274957 co-relation queries the response was YES. Maximal size of possible extension queue 655. Compared 77184 event pairs, 789 based on Foata normal form. 145/10632 useless extension candidates. Maximal degree in co-relation 187322. Up to 5857 conditions per place. [2021-11-20 07:17:55,407 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 1523 selfloop transitions, 1447 changer transitions 0/3119 dead transitions. [2021-11-20 07:17:55,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 588 places, 3119 transitions, 160543 flow [2021-11-20 07:17:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:17:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:17:55,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2496 transitions. [2021-11-20 07:17:55,417 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6007220216606498 [2021-11-20 07:17:55,417 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2496 transitions. [2021-11-20 07:17:55,417 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2496 transitions. [2021-11-20 07:17:55,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:17:55,418 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2496 transitions. [2021-11-20 07:17:55,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 166.4) internal successors, (2496), 15 states have internal predecessors, (2496), 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) [2021-11-20 07:17:55,422 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:17:55,423 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:17:55,423 INFO L186 Difference]: Start difference. First operand has 574 places, 2815 transitions, 148241 flow. Second operand 15 states and 2496 transitions. [2021-11-20 07:17:55,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 588 places, 3119 transitions, 160543 flow [2021-11-20 07:18:08,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 582 places, 3119 transitions, 160045 flow, removed 200 selfloop flow, removed 6 redundant places. [2021-11-20 07:18:09,139 INFO L242 Difference]: Finished difference. Result has 583 places, 2820 transitions, 150975 flow [2021-11-20 07:18:09,142 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=147753, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2815, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1442, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=150975, PETRI_PLACES=583, PETRI_TRANSITIONS=2820} [2021-11-20 07:18:09,142 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 310 predicate places. [2021-11-20 07:18:09,142 INFO L470 AbstractCegarLoop]: Abstraction has has 583 places, 2820 transitions, 150975 flow [2021-11-20 07:18:09,143 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:18:09,143 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:18:09,143 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:18:09,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-11-20 07:18:09,143 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:18:09,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:18:09,144 INFO L85 PathProgramCache]: Analyzing trace with hash -857643628, now seen corresponding path program 10 times [2021-11-20 07:18:09,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:18:09,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085139923] [2021-11-20 07:18:09,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:18:09,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:18:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:18:09,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:18:09,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:18:09,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085139923] [2021-11-20 07:18:09,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085139923] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:18:09,896 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:18:09,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:18:09,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720120336] [2021-11-20 07:18:09,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:18:09,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:18:09,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:18:09,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:18:09,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:18:09,900 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:18:09,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 583 places, 2820 transitions, 150975 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:18:09,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:18:09,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:18:09,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:18:26,086 INFO L129 PetriNetUnfolder]: 6235/11335 cut-off events. [2021-11-20 07:18:26,086 INFO L130 PetriNetUnfolder]: For 1451080/1451335 co-relation queries the response was YES. [2021-11-20 07:18:26,283 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204648 conditions, 11335 events. 6235/11335 cut-off events. For 1451080/1451335 co-relation queries the response was YES. Maximal size of possible extension queue 716. Compared 84128 event pairs, 1155 based on Foata normal form. 193/11405 useless extension candidates. Maximal degree in co-relation 204238. Up to 6049 conditions per place. [2021-11-20 07:18:26,401 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 1295 selfloop transitions, 1899 changer transitions 0/3343 dead transitions. [2021-11-20 07:18:26,401 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 597 places, 3343 transitions, 180025 flow [2021-11-20 07:18:26,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:18:26,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:18:26,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2493 transitions. [2021-11-20 07:18:26,404 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-11-20 07:18:26,404 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2493 transitions. [2021-11-20 07:18:26,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2493 transitions. [2021-11-20 07:18:26,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:18:26,405 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2493 transitions. [2021-11-20 07:18:26,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 166.2) internal successors, (2493), 15 states have internal predecessors, (2493), 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) [2021-11-20 07:18:26,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:18:26,409 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:18:26,409 INFO L186 Difference]: Start difference. First operand has 583 places, 2820 transitions, 150975 flow. Second operand 15 states and 2493 transitions. [2021-11-20 07:18:26,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 597 places, 3343 transitions, 180025 flow [2021-11-20 07:18:42,566 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 586 places, 3343 transitions, 178037 flow, removed 35 selfloop flow, removed 11 redundant places. [2021-11-20 07:18:42,712 INFO L242 Difference]: Finished difference. Result has 594 places, 3123 transitions, 172731 flow [2021-11-20 07:18:42,715 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=149142, PETRI_DIFFERENCE_MINUEND_PLACES=572, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2820, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1604, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=172731, PETRI_PLACES=594, PETRI_TRANSITIONS=3123} [2021-11-20 07:18:42,715 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 321 predicate places. [2021-11-20 07:18:42,716 INFO L470 AbstractCegarLoop]: Abstraction has has 594 places, 3123 transitions, 172731 flow [2021-11-20 07:18:42,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:18:42,716 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:18:42,717 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:18:42,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-11-20 07:18:42,717 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:18:42,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:18:42,718 INFO L85 PathProgramCache]: Analyzing trace with hash 640771304, now seen corresponding path program 11 times [2021-11-20 07:18:42,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:18:42,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857216461] [2021-11-20 07:18:42,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:18:42,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:18:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:18:43,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:18:43,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:18:43,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857216461] [2021-11-20 07:18:43,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857216461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:18:43,138 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:18:43,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:18:43,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370779963] [2021-11-20 07:18:43,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:18:43,139 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:18:43,139 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:18:43,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:18:43,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:18:43,141 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:18:43,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 594 places, 3123 transitions, 172731 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:18:43,143 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:18:43,143 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:18:43,143 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:19:03,558 INFO L129 PetriNetUnfolder]: 6354/11596 cut-off events. [2021-11-20 07:19:03,558 INFO L130 PetriNetUnfolder]: For 1561529/1561820 co-relation queries the response was YES. [2021-11-20 07:19:03,812 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216353 conditions, 11596 events. 6354/11596 cut-off events. For 1561529/1561820 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 86514 event pairs, 1300 based on Foata normal form. 181/11646 useless extension candidates. Maximal degree in co-relation 215935. Up to 7036 conditions per place. [2021-11-20 07:19:03,934 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 1054 selfloop transitions, 2198 changer transitions 0/3401 dead transitions. [2021-11-20 07:19:03,934 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 607 places, 3401 transitions, 190096 flow [2021-11-20 07:19:03,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:19:03,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 07:19:03,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2335 transitions. [2021-11-20 07:19:03,936 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6021144920061887 [2021-11-20 07:19:03,936 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2335 transitions. [2021-11-20 07:19:03,936 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2335 transitions. [2021-11-20 07:19:03,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:19:03,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2335 transitions. [2021-11-20 07:19:03,938 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 166.78571428571428) internal successors, (2335), 14 states have internal predecessors, (2335), 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) [2021-11-20 07:19:03,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:19:03,940 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:19:03,940 INFO L186 Difference]: Start difference. First operand has 594 places, 3123 transitions, 172731 flow. Second operand 14 states and 2335 transitions. [2021-11-20 07:19:03,940 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 607 places, 3401 transitions, 190096 flow [2021-11-20 07:19:22,227 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 602 places, 3401 transitions, 189727 flow, removed 180 selfloop flow, removed 5 redundant places. [2021-11-20 07:19:22,393 INFO L242 Difference]: Finished difference. Result has 607 places, 3280 transitions, 189258 flow [2021-11-20 07:19:22,395 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=172368, PETRI_DIFFERENCE_MINUEND_PLACES=589, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2041, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=969, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=189258, PETRI_PLACES=607, PETRI_TRANSITIONS=3280} [2021-11-20 07:19:22,396 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 334 predicate places. [2021-11-20 07:19:22,396 INFO L470 AbstractCegarLoop]: Abstraction has has 607 places, 3280 transitions, 189258 flow [2021-11-20 07:19:22,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:19:22,396 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:19:22,396 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:19:22,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-11-20 07:19:22,397 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:19:22,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:19:22,397 INFO L85 PathProgramCache]: Analyzing trace with hash 462673098, now seen corresponding path program 12 times [2021-11-20 07:19:22,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:19:22,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034797840] [2021-11-20 07:19:22,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:19:22,397 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:19:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:19:22,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:19:22,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:19:22,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034797840] [2021-11-20 07:19:22,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034797840] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:19:22,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:19:22,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:19:22,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279593717] [2021-11-20 07:19:22,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:19:22,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:19:22,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:19:22,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:19:22,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:19:22,835 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:19:22,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 607 places, 3280 transitions, 189258 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:19:22,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:19:22,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:19:22,837 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:19:44,398 INFO L129 PetriNetUnfolder]: 6504/11902 cut-off events. [2021-11-20 07:19:44,398 INFO L130 PetriNetUnfolder]: For 1747767/1748067 co-relation queries the response was YES. [2021-11-20 07:19:44,637 INFO L84 FinitePrefix]: Finished finitePrefix Result has 228452 conditions, 11902 events. 6504/11902 cut-off events. For 1747767/1748067 co-relation queries the response was YES. Maximal size of possible extension queue 767. Compared 89573 event pairs, 1246 based on Foata normal form. 180/11946 useless extension candidates. Maximal degree in co-relation 228028. Up to 7155 conditions per place. [2021-11-20 07:19:44,757 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 1131 selfloop transitions, 2253 changer transitions 0/3533 dead transitions. [2021-11-20 07:19:44,757 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 620 places, 3533 transitions, 205908 flow [2021-11-20 07:19:44,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-20 07:19:44,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-11-20 07:19:44,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 2333 transitions. [2021-11-20 07:19:44,759 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6015987622485818 [2021-11-20 07:19:44,759 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 2333 transitions. [2021-11-20 07:19:44,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 2333 transitions. [2021-11-20 07:19:44,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:19:44,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 2333 transitions. [2021-11-20 07:19:44,763 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 166.64285714285714) internal successors, (2333), 14 states have internal predecessors, (2333), 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) [2021-11-20 07:19:44,766 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:19:44,766 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 277.0) internal successors, (4155), 15 states have internal predecessors, (4155), 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) [2021-11-20 07:19:44,766 INFO L186 Difference]: Start difference. First operand has 607 places, 3280 transitions, 189258 flow. Second operand 14 states and 2333 transitions. [2021-11-20 07:19:44,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 620 places, 3533 transitions, 205908 flow [2021-11-20 07:20:05,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 3533 transitions, 204906 flow, removed 447 selfloop flow, removed 6 redundant places. [2021-11-20 07:20:05,433 INFO L242 Difference]: Finished difference. Result has 620 places, 3412 transitions, 204685 flow [2021-11-20 07:20:05,435 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=188262, PETRI_DIFFERENCE_MINUEND_PLACES=601, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2121, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1070, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=204685, PETRI_PLACES=620, PETRI_TRANSITIONS=3412} [2021-11-20 07:20:05,436 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 347 predicate places. [2021-11-20 07:20:05,436 INFO L470 AbstractCegarLoop]: Abstraction has has 620 places, 3412 transitions, 204685 flow [2021-11-20 07:20:05,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:20:05,436 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:20:05,436 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:05,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-11-20 07:20:05,436 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:20:05,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:05,437 INFO L85 PathProgramCache]: Analyzing trace with hash 642875894, now seen corresponding path program 13 times [2021-11-20 07:20:05,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:05,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563025207] [2021-11-20 07:20:05,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:05,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:05,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:20:05,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:05,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563025207] [2021-11-20 07:20:05,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563025207] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:20:05,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:05,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:20:05,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436071714] [2021-11-20 07:20:05,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:20:05,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:20:05,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:20:05,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:20:05,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:20:05,994 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:20:05,995 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 3412 transitions, 204685 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:20:05,995 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:20:05,996 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:20:05,996 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-11-20 07:20:27,606 INFO L129 PetriNetUnfolder]: 6572/12061 cut-off events. [2021-11-20 07:20:27,606 INFO L130 PetriNetUnfolder]: For 1918405/1918704 co-relation queries the response was YES. [2021-11-20 07:20:27,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 238342 conditions, 12061 events. 6572/12061 cut-off events. For 1918405/1918704 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 91361 event pairs, 1250 based on Foata normal form. 192/12114 useless extension candidates. Maximal degree in co-relation 237911. Up to 7177 conditions per place. [2021-11-20 07:20:28,167 INFO L132 encePairwiseOnDemand]: 260/277 looper letters, 1141 selfloop transitions, 2351 changer transitions 0/3641 dead transitions. [2021-11-20 07:20:28,167 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 634 places, 3641 transitions, 220149 flow [2021-11-20 07:20:28,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:20:28,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-11-20 07:20:28,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 2492 transitions. [2021-11-20 07:20:28,169 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5997593261131168 [2021-11-20 07:20:28,170 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 2492 transitions. [2021-11-20 07:20:28,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 2492 transitions. [2021-11-20 07:20:28,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:20:28,170 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 2492 transitions. [2021-11-20 07:20:28,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 166.13333333333333) internal successors, (2492), 15 states have internal predecessors, (2492), 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) [2021-11-20 07:20:28,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:28,174 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 277.0) internal successors, (4432), 16 states have internal predecessors, (4432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:20:28,174 INFO L186 Difference]: Start difference. First operand has 620 places, 3412 transitions, 204685 flow. Second operand 15 states and 2492 transitions. [2021-11-20 07:20:28,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 634 places, 3641 transitions, 220149 flow [2021-11-20 07:20:51,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 3641 transitions, 218563 flow, removed 483 selfloop flow, removed 6 redundant places. [2021-11-20 07:20:51,930 INFO L242 Difference]: Finished difference. Result has 632 places, 3532 transitions, 216488 flow [2021-11-20 07:20:51,934 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=277, PETRI_DIFFERENCE_MINUEND_FLOW=203159, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2236, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=216488, PETRI_PLACES=632, PETRI_TRANSITIONS=3532} [2021-11-20 07:20:51,934 INFO L334 CegarLoopForPetriNet]: 273 programPoint places, 359 predicate places. [2021-11-20 07:20:51,934 INFO L470 AbstractCegarLoop]: Abstraction has has 632 places, 3532 transitions, 216488 flow [2021-11-20 07:20:51,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:20:51,935 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-11-20 07:20:51,935 INFO L254 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:20:51,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-11-20 07:20:51,936 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2021-11-20 07:20:51,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:20:51,936 INFO L85 PathProgramCache]: Analyzing trace with hash 464777688, now seen corresponding path program 14 times [2021-11-20 07:20:51,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:20:51,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148751663] [2021-11-20 07:20:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:20:51,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:20:51,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:20:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:20:52,566 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:20:52,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148751663] [2021-11-20 07:20:52,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148751663] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:20:52,566 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:20:52,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-20 07:20:52,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048783864] [2021-11-20 07:20:52,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:20:52,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-20 07:20:52,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:20:52,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-20 07:20:52,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-11-20 07:20:52,569 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 149 out of 277 [2021-11-20 07:20:52,570 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 632 places, 3532 transitions, 216488 flow. Second operand has 14 states, 14 states have (on average 152.42857142857142) internal successors, (2134), 14 states have internal predecessors, (2134), 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) [2021-11-20 07:20:52,570 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-11-20 07:20:52,570 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 149 of 277 [2021-11-20 07:20:52,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand