./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue_longer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue_longer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:05:35,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:05:35,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:05:35,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:05:35,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:05:35,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:05:35,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:05:35,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:05:35,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:05:35,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:05:35,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:05:35,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:05:35,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:05:35,879 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:05:35,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:05:35,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:05:35,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:05:35,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:05:35,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:05:35,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:05:35,888 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:05:35,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:05:35,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:05:35,895 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:05:35,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:05:35,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:05:35,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:05:35,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:05:35,905 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:05:35,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:05:35,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:05:35,908 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:05:35,909 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:05:35,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:05:35,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:05:35,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:05:35,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:05:35,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:05:35,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:05:35,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:05:35,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:05:35,913 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 15:05:35,929 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:05:35,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:05:35,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:05:35,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:05:35,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:05:35,930 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:05:35,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:05:35,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:05:35,931 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:05:35,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:05:35,931 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:05:35,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:05:35,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:05:35,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:05:35,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:05:35,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:05:35,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:05:35,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:05:35,932 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 15:05:35,933 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:05:35,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:05:35,933 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:05:35,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:05:35,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:05:35,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:05:35,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:05:35,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:05:35,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:05:35,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:05:35,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:05:35,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:05:35,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:05:35,935 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:05:35,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:05:35,935 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:05:35,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:05:35,935 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:05:35,935 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f874a9872f93f025fac23ebed37f94a1f3b80bd0133ea4d7e298577c4fec427 [2022-12-13 15:05:36,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:05:36,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:05:36,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:05:36,117 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:05:36,117 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:05:36,118 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/queue_longer.i [2022-12-13 15:05:38,711 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:05:38,924 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:05:38,925 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/sv-benchmarks/c/pthread/queue_longer.i [2022-12-13 15:05:38,945 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/data/faba04e64/58b7efd0cdee45b4ba08e54cc53ab2ec/FLAGf91e5d414 [2022-12-13 15:05:39,281 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/data/faba04e64/58b7efd0cdee45b4ba08e54cc53ab2ec [2022-12-13 15:05:39,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:05:39,286 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:05:39,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:05:39,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:05:39,291 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:05:39,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a571cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39, skipping insertion in model container [2022-12-13 15:05:39,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:05:39,337 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:05:39,664 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-12-13 15:05:39,667 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-12-13 15:05:39,670 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-12-13 15:05:39,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:05:39,681 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:05:39,717 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/sv-benchmarks/c/pthread/queue_longer.i[43296,43309] [2022-12-13 15:05:39,718 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/sv-benchmarks/c/pthread/queue_longer.i[43503,43516] [2022-12-13 15:05:39,721 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/sv-benchmarks/c/pthread/queue_longer.i[43783,43796] [2022-12-13 15:05:39,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:05:39,757 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:05:39,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39 WrapperNode [2022-12-13 15:05:39,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:05:39,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:05:39,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:05:39,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:05:39,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,827 INFO L138 Inliner]: procedures = 274, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 481 [2022-12-13 15:05:39,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:05:39,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:05:39,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:05:39,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:05:39,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,886 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:05:39,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:05:39,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:05:39,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:05:39,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (1/1) ... [2022-12-13 15:05:39,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:05:39,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:05:39,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:05:39,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cfe1ee98-4c01-409b-9f7d-c8873ea01fdd/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:05:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-12-13 15:05:39,960 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-12-13 15:05:39,960 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-12-13 15:05:39,961 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-12-13 15:05:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:05:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:05:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 15:05:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 15:05:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 15:05:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:05:39,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:05:39,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:05:39,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:05:39,963 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 15:05:40,090 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:05:40,092 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:05:40,660 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:05:40,669 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:05:40,669 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 15:05:40,672 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:05:40 BoogieIcfgContainer [2022-12-13 15:05:40,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:05:40,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:05:40,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:05:40,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:05:40,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:05:39" (1/3) ... [2022-12-13 15:05:40,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de3122b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:05:40, skipping insertion in model container [2022-12-13 15:05:40,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:05:39" (2/3) ... [2022-12-13 15:05:40,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4de3122b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:05:40, skipping insertion in model container [2022-12-13 15:05:40,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:05:40" (3/3) ... [2022-12-13 15:05:40,680 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_longer.i [2022-12-13 15:05:40,687 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 15:05:40,696 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:05:40,696 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2022-12-13 15:05:40,696 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 15:05:40,832 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 15:05:40,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 545 places, 553 transitions, 1122 flow [2022-12-13 15:05:41,011 INFO L130 PetriNetUnfolder]: 15/551 cut-off events. [2022-12-13 15:05:41,012 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 15:05:41,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 551 events. 15/551 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 798 event pairs, 0 based on Foata normal form. 0/492 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-12-13 15:05:41,023 INFO L82 GeneralOperation]: Start removeDead. Operand has 545 places, 553 transitions, 1122 flow [2022-12-13 15:05:41,030 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 533 places, 541 transitions, 1091 flow [2022-12-13 15:05:41,039 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 15:05:41,049 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 533 places, 541 transitions, 1091 flow [2022-12-13 15:05:41,052 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 533 places, 541 transitions, 1091 flow [2022-12-13 15:05:41,053 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 533 places, 541 transitions, 1091 flow [2022-12-13 15:05:41,188 INFO L130 PetriNetUnfolder]: 15/541 cut-off events. [2022-12-13 15:05:41,188 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 15:05:41,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 541 events. 15/541 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 759 event pairs, 0 based on Foata normal form. 0/482 useless extension candidates. Maximal degree in co-relation 421. Up to 2 conditions per place. [2022-12-13 15:05:41,225 INFO L119 LiptonReduction]: Number of co-enabled transitions 83848 [2022-12-13 15:06:13,555 WARN L233 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:06:24,621 WARN L233 SmtUtils]: Spent 6.36s on a formula simplification that was a NOOP. DAG size: 122 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:06:29,963 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 118 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:06:40,709 WARN L233 SmtUtils]: Spent 10.74s on a formula simplification. DAG size of input: 124 DAG size of output: 119 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:06:57,337 WARN L233 SmtUtils]: Spent 11.77s on a formula simplification. DAG size of input: 127 DAG size of output: 122 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:07:02,959 WARN L233 SmtUtils]: Spent 5.62s on a formula simplification that was a NOOP. DAG size: 118 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:07:21,303 WARN L233 SmtUtils]: Spent 18.32s on a formula simplification. DAG size of input: 245 DAG size of output: 210 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:07:27,244 WARN L233 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:08:11,098 WARN L233 SmtUtils]: Spent 43.85s on a formula simplification. DAG size of input: 252 DAG size of output: 217 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:08:22,369 WARN L233 SmtUtils]: Spent 11.27s on a formula simplification that was a NOOP. DAG size: 213 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-12-13 15:08:22,382 INFO L134 LiptonReduction]: Checked pairs total: 684420 [2022-12-13 15:08:22,382 INFO L136 LiptonReduction]: Total number of compositions: 334 [2022-12-13 15:08:22,396 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:08:22,400 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@378187f3, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:08:22,400 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-12-13 15:08:22,402 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 15:08:22,402 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 15:08:22,402 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:08:22,403 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 15:08:22,403 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:08:22,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:08:22,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1927, now seen corresponding path program 1 times [2022-12-13 15:08:22,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:08:22,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296286005] [2022-12-13 15:08:22,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:08:22,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:08:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:22,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:08:22,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:08:22,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296286005] [2022-12-13 15:08:22,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296286005] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:08:22,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:08:22,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 15:08:22,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29036504] [2022-12-13 15:08:22,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:08:22,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:08:22,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:08:22,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:08:22,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:08:22,523 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 540 out of 887 [2022-12-13 15:08:22,526 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 274 transitions, 557 flow. Second operand has 2 states, 2 states have (on average 540.5) internal successors, (1081), 2 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:22,526 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:08:22,526 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 540 of 887 [2022-12-13 15:08:22,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:08:24,434 INFO L130 PetriNetUnfolder]: 4229/12904 cut-off events. [2022-12-13 15:08:24,434 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-12-13 15:08:24,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19889 conditions, 12904 events. 4229/12904 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 112637 event pairs, 3723 based on Foata normal form. 144/12276 useless extension candidates. Maximal degree in co-relation 19466. Up to 6861 conditions per place. [2022-12-13 15:08:24,494 INFO L137 encePairwiseOnDemand]: 877/887 looper letters, 85 selfloop transitions, 0 changer transitions 0/263 dead transitions. [2022-12-13 15:08:24,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 263 transitions, 705 flow [2022-12-13 15:08:24,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:08:24,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 15:08:24,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1175 transitions. [2022-12-13 15:08:24,507 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6623449830890643 [2022-12-13 15:08:24,508 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 1175 transitions. [2022-12-13 15:08:24,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 1175 transitions. [2022-12-13 15:08:24,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:08:24,512 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 1175 transitions. [2022-12-13 15:08:24,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 587.5) internal successors, (1175), 2 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:24,523 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 887.0) internal successors, (2661), 3 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:24,524 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 887.0) internal successors, (2661), 3 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:24,525 INFO L175 Difference]: Start difference. First operand has 271 places, 274 transitions, 557 flow. Second operand 2 states and 1175 transitions. [2022-12-13 15:08:24,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 263 transitions, 705 flow [2022-12-13 15:08:24,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 263 transitions, 700 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 15:08:24,533 INFO L231 Difference]: Finished difference. Result has 261 places, 263 transitions, 530 flow [2022-12-13 15:08:24,535 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=263, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=530, PETRI_PLACES=261, PETRI_TRANSITIONS=263} [2022-12-13 15:08:24,538 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, -10 predicate places. [2022-12-13 15:08:24,538 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 263 transitions, 530 flow [2022-12-13 15:08:24,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 540.5) internal successors, (1081), 2 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:24,539 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:08:24,539 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:08:24,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:08:24,540 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:08:24,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:08:24,540 INFO L85 PathProgramCache]: Analyzing trace with hash 435653480, now seen corresponding path program 1 times [2022-12-13 15:08:24,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:08:24,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642987328] [2022-12-13 15:08:24,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:08:24,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:08:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:24,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:08:24,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:08:24,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642987328] [2022-12-13 15:08:24,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642987328] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:08:24,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:08:24,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:08:24,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836397110] [2022-12-13 15:08:24,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:08:24,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:08:24,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:08:24,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:08:24,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:08:24,683 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 887 [2022-12-13 15:08:24,687 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 263 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 536.6666666666666) internal successors, (1610), 3 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:24,687 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:08:24,688 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 887 [2022-12-13 15:08:24,688 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:08:27,007 INFO L130 PetriNetUnfolder]: 6913/19710 cut-off events. [2022-12-13 15:08:27,007 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-13 15:08:27,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30964 conditions, 19710 events. 6913/19710 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 172586 event pairs, 1657 based on Foata normal form. 0/18418 useless extension candidates. Maximal degree in co-relation 30961. Up to 6078 conditions per place. [2022-12-13 15:08:27,072 INFO L137 encePairwiseOnDemand]: 882/887 looper letters, 161 selfloop transitions, 4 changer transitions 0/341 dead transitions. [2022-12-13 15:08:27,072 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 341 transitions, 1017 flow [2022-12-13 15:08:27,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:08:27,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:08:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1768 transitions. [2022-12-13 15:08:27,075 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6644118752348741 [2022-12-13 15:08:27,076 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1768 transitions. [2022-12-13 15:08:27,076 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1768 transitions. [2022-12-13 15:08:27,076 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:08:27,076 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1768 transitions. [2022-12-13 15:08:27,079 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 589.3333333333334) internal successors, (1768), 3 states have internal predecessors, (1768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:27,082 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:27,083 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:27,084 INFO L175 Difference]: Start difference. First operand has 261 places, 263 transitions, 530 flow. Second operand 3 states and 1768 transitions. [2022-12-13 15:08:27,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 341 transitions, 1017 flow [2022-12-13 15:08:27,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 341 transitions, 1017 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:08:27,088 INFO L231 Difference]: Finished difference. Result has 265 places, 267 transitions, 564 flow [2022-12-13 15:08:27,088 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=564, PETRI_PLACES=265, PETRI_TRANSITIONS=267} [2022-12-13 15:08:27,089 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, -6 predicate places. [2022-12-13 15:08:27,089 INFO L495 AbstractCegarLoop]: Abstraction has has 265 places, 267 transitions, 564 flow [2022-12-13 15:08:27,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 536.6666666666666) internal successors, (1610), 3 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:27,090 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:08:27,090 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:08:27,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:08:27,090 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:08:27,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:08:27,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1140364143, now seen corresponding path program 1 times [2022-12-13 15:08:27,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:08:27,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78507626] [2022-12-13 15:08:27,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:08:27,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:08:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:08:27,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:08:27,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78507626] [2022-12-13 15:08:27,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78507626] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:08:27,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:08:27,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:08:27,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625274272] [2022-12-13 15:08:27,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:08:27,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:08:27,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:08:27,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:08:27,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:08:28,613 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 440 out of 887 [2022-12-13 15:08:28,616 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 267 transitions, 564 flow. Second operand has 6 states, 6 states have (on average 441.5) internal successors, (2649), 6 states have internal predecessors, (2649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:28,616 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:08:28,616 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 440 of 887 [2022-12-13 15:08:28,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:08:34,683 INFO L130 PetriNetUnfolder]: 26680/53441 cut-off events. [2022-12-13 15:08:34,683 INFO L131 PetriNetUnfolder]: For 2136/2136 co-relation queries the response was YES. [2022-12-13 15:08:34,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99256 conditions, 53441 events. 26680/53441 cut-off events. For 2136/2136 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 424873 event pairs, 13626 based on Foata normal form. 0/50294 useless extension candidates. Maximal degree in co-relation 99251. Up to 31410 conditions per place. [2022-12-13 15:08:34,978 INFO L137 encePairwiseOnDemand]: 831/887 looper letters, 296 selfloop transitions, 86 changer transitions 0/490 dead transitions. [2022-12-13 15:08:34,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 490 transitions, 1830 flow [2022-12-13 15:08:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:08:34,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:08:34,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3017 transitions. [2022-12-13 15:08:34,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5668921458098459 [2022-12-13 15:08:34,983 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3017 transitions. [2022-12-13 15:08:34,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3017 transitions. [2022-12-13 15:08:34,984 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:08:34,984 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3017 transitions. [2022-12-13 15:08:34,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 502.8333333333333) internal successors, (3017), 6 states have internal predecessors, (3017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:34,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 887.0) internal successors, (6209), 7 states have internal predecessors, (6209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:34,996 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 887.0) internal successors, (6209), 7 states have internal predecessors, (6209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:34,996 INFO L175 Difference]: Start difference. First operand has 265 places, 267 transitions, 564 flow. Second operand 6 states and 3017 transitions. [2022-12-13 15:08:34,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 490 transitions, 1830 flow [2022-12-13 15:08:35,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 490 transitions, 1806 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 15:08:35,007 INFO L231 Difference]: Finished difference. Result has 273 places, 349 transitions, 1168 flow [2022-12-13 15:08:35,007 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1168, PETRI_PLACES=273, PETRI_TRANSITIONS=349} [2022-12-13 15:08:35,008 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 2 predicate places. [2022-12-13 15:08:35,008 INFO L495 AbstractCegarLoop]: Abstraction has has 273 places, 349 transitions, 1168 flow [2022-12-13 15:08:35,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 441.5) internal successors, (2649), 6 states have internal predecessors, (2649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:35,009 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:08:35,009 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:08:35,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 15:08:35,009 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:08:35,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:08:35,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1594874125, now seen corresponding path program 1 times [2022-12-13 15:08:35,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:08:35,010 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931415474] [2022-12-13 15:08:35,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:08:35,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:08:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:08:35,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:08:35,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:08:35,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931415474] [2022-12-13 15:08:35,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931415474] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:08:35,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:08:35,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:08:35,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341650211] [2022-12-13 15:08:35,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:08:35,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:08:35,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:08:35,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:08:35,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:08:36,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 467 out of 887 [2022-12-13 15:08:36,163 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 273 places, 349 transitions, 1168 flow. Second operand has 6 states, 6 states have (on average 468.6666666666667) internal successors, (2812), 6 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:08:36,163 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:08:36,163 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 467 of 887 [2022-12-13 15:08:36,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:09:08,737 INFO L130 PetriNetUnfolder]: 155366/282048 cut-off events. [2022-12-13 15:09:08,737 INFO L131 PetriNetUnfolder]: For 74734/77921 co-relation queries the response was YES. [2022-12-13 15:09:09,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614508 conditions, 282048 events. 155366/282048 cut-off events. For 74734/77921 co-relation queries the response was YES. Maximal size of possible extension queue 1645. Compared 2710381 event pairs, 46740 based on Foata normal form. 238/262983 useless extension candidates. Maximal degree in co-relation 614499. Up to 157667 conditions per place. [2022-12-13 15:09:10,013 INFO L137 encePairwiseOnDemand]: 829/887 looper letters, 520 selfloop transitions, 429 changer transitions 0/1099 dead transitions. [2022-12-13 15:09:10,013 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 278 places, 1099 transitions, 5767 flow [2022-12-13 15:09:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:09:10,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:09:10,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3437 transitions. [2022-12-13 15:09:10,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6458098459225855 [2022-12-13 15:09:10,019 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 3437 transitions. [2022-12-13 15:09:10,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 3437 transitions. [2022-12-13 15:09:10,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:09:10,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 3437 transitions. [2022-12-13 15:09:10,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 572.8333333333334) internal successors, (3437), 6 states have internal predecessors, (3437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:10,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 887.0) internal successors, (6209), 7 states have internal predecessors, (6209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:10,036 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 887.0) internal successors, (6209), 7 states have internal predecessors, (6209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:10,036 INFO L175 Difference]: Start difference. First operand has 273 places, 349 transitions, 1168 flow. Second operand 6 states and 3437 transitions. [2022-12-13 15:09:10,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 278 places, 1099 transitions, 5767 flow [2022-12-13 15:09:10,158 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 278 places, 1099 transitions, 5767 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 15:09:10,166 INFO L231 Difference]: Finished difference. Result has 283 places, 777 transitions, 4970 flow [2022-12-13 15:09:10,167 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=1168, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4970, PETRI_PLACES=283, PETRI_TRANSITIONS=777} [2022-12-13 15:09:10,167 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 12 predicate places. [2022-12-13 15:09:10,167 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 777 transitions, 4970 flow [2022-12-13 15:09:10,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 468.6666666666667) internal successors, (2812), 6 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:10,169 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:09:10,169 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:09:10,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 15:09:10,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:09:10,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:10,170 INFO L85 PathProgramCache]: Analyzing trace with hash 771876203, now seen corresponding path program 1 times [2022-12-13 15:09:10,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:10,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788461231] [2022-12-13 15:09:10,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:10,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:10,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:09:10,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:10,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788461231] [2022-12-13 15:09:10,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788461231] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:09:10,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:09:10,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 15:09:10,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992269606] [2022-12-13 15:09:10,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:09:10,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 15:09:10,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:10,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 15:09:10,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 15:09:10,257 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 535 out of 887 [2022-12-13 15:09:10,259 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 777 transitions, 4970 flow. Second operand has 3 states, 3 states have (on average 538.0) internal successors, (1614), 3 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:10,259 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:09:10,259 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 535 of 887 [2022-12-13 15:09:10,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:09:30,452 INFO L130 PetriNetUnfolder]: 54056/132427 cut-off events. [2022-12-13 15:09:30,452 INFO L131 PetriNetUnfolder]: For 82405/88384 co-relation queries the response was YES. [2022-12-13 15:09:30,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 322467 conditions, 132427 events. 54056/132427 cut-off events. For 82405/88384 co-relation queries the response was YES. Maximal size of possible extension queue 1737. Compared 1497314 event pairs, 15620 based on Foata normal form. 698/125739 useless extension candidates. Maximal degree in co-relation 322453. Up to 39957 conditions per place. [2022-12-13 15:09:31,184 INFO L137 encePairwiseOnDemand]: 883/887 looper letters, 227 selfloop transitions, 3 changer transitions 0/810 dead transitions. [2022-12-13 15:09:31,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 810 transitions, 5497 flow [2022-12-13 15:09:31,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 15:09:31,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 15:09:31,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1734 transitions. [2022-12-13 15:09:31,187 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6516347237880497 [2022-12-13 15:09:31,187 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1734 transitions. [2022-12-13 15:09:31,187 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1734 transitions. [2022-12-13 15:09:31,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:09:31,188 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1734 transitions. [2022-12-13 15:09:31,190 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 578.0) internal successors, (1734), 3 states have internal predecessors, (1734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:31,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:31,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 887.0) internal successors, (3548), 4 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:31,194 INFO L175 Difference]: Start difference. First operand has 283 places, 777 transitions, 4970 flow. Second operand 3 states and 1734 transitions. [2022-12-13 15:09:31,194 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 810 transitions, 5497 flow [2022-12-13 15:09:34,567 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 810 transitions, 5481 flow, removed 8 selfloop flow, removed 0 redundant places. [2022-12-13 15:09:34,574 INFO L231 Difference]: Finished difference. Result has 283 places, 746 transitions, 4771 flow [2022-12-13 15:09:34,575 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=4756, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=742, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=4771, PETRI_PLACES=283, PETRI_TRANSITIONS=746} [2022-12-13 15:09:34,575 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 12 predicate places. [2022-12-13 15:09:34,575 INFO L495 AbstractCegarLoop]: Abstraction has has 283 places, 746 transitions, 4771 flow [2022-12-13 15:09:34,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 538.0) internal successors, (1614), 3 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:34,576 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:09:34,576 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:09:34,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 15:09:34,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:09:34,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:09:34,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1764354799, now seen corresponding path program 1 times [2022-12-13 15:09:34,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:09:34,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322143461] [2022-12-13 15:09:34,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:09:34,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:09:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:09:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:09:34,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:09:34,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322143461] [2022-12-13 15:09:34,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322143461] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:09:34,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:09:34,788 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 15:09:34,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237745381] [2022-12-13 15:09:34,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:09:34,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 15:09:34,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:09:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 15:09:34,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 15:09:35,665 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 887 [2022-12-13 15:09:35,668 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 283 places, 746 transitions, 4771 flow. Second operand has 6 states, 6 states have (on average 382.3333333333333) internal successors, (2294), 6 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:09:35,668 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:09:35,668 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 887 [2022-12-13 15:09:35,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:10:37,913 INFO L130 PetriNetUnfolder]: 219198/373397 cut-off events. [2022-12-13 15:10:37,913 INFO L131 PetriNetUnfolder]: For 325455/327823 co-relation queries the response was YES. [2022-12-13 15:10:38,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1045550 conditions, 373397 events. 219198/373397 cut-off events. For 325455/327823 co-relation queries the response was YES. Maximal size of possible extension queue 2604. Compared 3302918 event pairs, 121907 based on Foata normal form. 28/354705 useless extension candidates. Maximal degree in co-relation 1045534. Up to 328752 conditions per place. [2022-12-13 15:10:40,147 INFO L137 encePairwiseOnDemand]: 835/887 looper letters, 800 selfloop transitions, 237 changer transitions 0/1096 dead transitions. [2022-12-13 15:10:40,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 288 places, 1096 transitions, 8149 flow [2022-12-13 15:10:40,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 15:10:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 15:10:40,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2774 transitions. [2022-12-13 15:10:40,153 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5212326193160466 [2022-12-13 15:10:40,153 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2774 transitions. [2022-12-13 15:10:40,153 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2774 transitions. [2022-12-13 15:10:40,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:10:40,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2774 transitions. [2022-12-13 15:10:40,158 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 462.3333333333333) internal successors, (2774), 6 states have internal predecessors, (2774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:40,163 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 887.0) internal successors, (6209), 7 states have internal predecessors, (6209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:40,164 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 887.0) internal successors, (6209), 7 states have internal predecessors, (6209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:10:40,164 INFO L175 Difference]: Start difference. First operand has 283 places, 746 transitions, 4771 flow. Second operand 6 states and 2774 transitions. [2022-12-13 15:10:40,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 288 places, 1096 transitions, 8149 flow [2022-12-13 15:11:03,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 1096 transitions, 8146 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:11:03,896 INFO L231 Difference]: Finished difference. Result has 291 places, 968 transitions, 6627 flow [2022-12-13 15:11:03,897 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=4768, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=746, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=665, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=6627, PETRI_PLACES=291, PETRI_TRANSITIONS=968} [2022-12-13 15:11:03,897 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 20 predicate places. [2022-12-13 15:11:03,897 INFO L495 AbstractCegarLoop]: Abstraction has has 291 places, 968 transitions, 6627 flow [2022-12-13 15:11:03,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 382.3333333333333) internal successors, (2294), 6 states have internal predecessors, (2294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:11:03,899 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:11:03,899 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:11:03,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 15:11:03,899 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:11:03,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:11:03,899 INFO L85 PathProgramCache]: Analyzing trace with hash 866516441, now seen corresponding path program 1 times [2022-12-13 15:11:03,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:11:03,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341032844] [2022-12-13 15:11:03,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:11:03,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:11:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:11:04,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:11:04,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:11:04,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341032844] [2022-12-13 15:11:04,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341032844] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:11:04,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:11:04,248 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:11:04,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643419126] [2022-12-13 15:11:04,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:11:04,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:11:04,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:11:04,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:11:04,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:11:06,156 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 887 [2022-12-13 15:11:06,160 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 968 transitions, 6627 flow. Second operand has 9 states, 9 states have (on average 464.55555555555554) internal successors, (4181), 9 states have internal predecessors, (4181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:11:06,160 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:11:06,160 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 887 [2022-12-13 15:11:06,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:11:58,161 INFO L130 PetriNetUnfolder]: 150895/291875 cut-off events. [2022-12-13 15:11:58,161 INFO L131 PetriNetUnfolder]: For 342678/349483 co-relation queries the response was YES. [2022-12-13 15:11:59,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 869592 conditions, 291875 events. 150895/291875 cut-off events. For 342678/349483 co-relation queries the response was YES. Maximal size of possible extension queue 2538. Compared 2948291 event pairs, 59321 based on Foata normal form. 988/278829 useless extension candidates. Maximal degree in co-relation 869572. Up to 188215 conditions per place. [2022-12-13 15:12:00,113 INFO L137 encePairwiseOnDemand]: 842/887 looper letters, 954 selfloop transitions, 189 changer transitions 0/1375 dead transitions. [2022-12-13 15:12:00,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 299 places, 1375 transitions, 10929 flow [2022-12-13 15:12:00,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 15:12:00,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 15:12:00,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 4608 transitions. [2022-12-13 15:12:00,120 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5772266065388951 [2022-12-13 15:12:00,120 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 4608 transitions. [2022-12-13 15:12:00,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 4608 transitions. [2022-12-13 15:12:00,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:12:00,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 4608 transitions. [2022-12-13 15:12:00,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 512.0) internal successors, (4608), 9 states have internal predecessors, (4608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:00,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 887.0) internal successors, (8870), 10 states have internal predecessors, (8870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:00,136 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 887.0) internal successors, (8870), 10 states have internal predecessors, (8870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:00,136 INFO L175 Difference]: Start difference. First operand has 291 places, 968 transitions, 6627 flow. Second operand 9 states and 4608 transitions. [2022-12-13 15:12:00,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 299 places, 1375 transitions, 10929 flow [2022-12-13 15:12:17,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 299 places, 1375 transitions, 10665 flow, removed 132 selfloop flow, removed 0 redundant places. [2022-12-13 15:12:17,191 INFO L231 Difference]: Finished difference. Result has 306 places, 1089 transitions, 8350 flow [2022-12-13 15:12:17,192 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=6411, PETRI_DIFFERENCE_MINUEND_PLACES=291, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=789, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=8350, PETRI_PLACES=306, PETRI_TRANSITIONS=1089} [2022-12-13 15:12:17,192 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 35 predicate places. [2022-12-13 15:12:17,193 INFO L495 AbstractCegarLoop]: Abstraction has has 306 places, 1089 transitions, 8350 flow [2022-12-13 15:12:17,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 464.55555555555554) internal successors, (4181), 9 states have internal predecessors, (4181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:17,193 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:12:17,193 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:12:17,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 15:12:17,194 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:12:17,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:12:17,194 INFO L85 PathProgramCache]: Analyzing trace with hash -55786321, now seen corresponding path program 2 times [2022-12-13 15:12:17,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:12:17,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587728124] [2022-12-13 15:12:17,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:12:17,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:12:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:12:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:12:17,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:12:17,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587728124] [2022-12-13 15:12:17,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587728124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:12:17,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:12:17,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:12:17,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520444334] [2022-12-13 15:12:17,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:12:17,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:12:17,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:12:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:12:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:12:19,420 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 887 [2022-12-13 15:12:19,423 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 306 places, 1089 transitions, 8350 flow. Second operand has 9 states, 9 states have (on average 464.55555555555554) internal successors, (4181), 9 states have internal predecessors, (4181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:12:19,423 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:12:19,423 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 887 [2022-12-13 15:12:19,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:13:15,269 INFO L130 PetriNetUnfolder]: 152378/280337 cut-off events. [2022-12-13 15:13:15,269 INFO L131 PetriNetUnfolder]: For 542491/607399 co-relation queries the response was YES. [2022-12-13 15:13:16,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 946993 conditions, 280337 events. 152378/280337 cut-off events. For 542491/607399 co-relation queries the response was YES. Maximal size of possible extension queue 2461. Compared 2705689 event pairs, 42883 based on Foata normal form. 27482/293927 useless extension candidates. Maximal degree in co-relation 946965. Up to 152226 conditions per place. [2022-12-13 15:13:17,455 INFO L137 encePairwiseOnDemand]: 827/887 looper letters, 654 selfloop transitions, 574 changer transitions 0/1460 dead transitions. [2022-12-13 15:13:17,455 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 313 places, 1460 transitions, 11919 flow [2022-12-13 15:13:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:13:17,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 15:13:17,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 4375 transitions. [2022-12-13 15:13:17,461 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6165445321307779 [2022-12-13 15:13:17,461 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 4375 transitions. [2022-12-13 15:13:17,462 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 4375 transitions. [2022-12-13 15:13:17,463 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:13:17,463 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 4375 transitions. [2022-12-13 15:13:17,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 546.875) internal successors, (4375), 8 states have internal predecessors, (4375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,472 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 887.0) internal successors, (7983), 9 states have internal predecessors, (7983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,474 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 887.0) internal successors, (7983), 9 states have internal predecessors, (7983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:13:17,474 INFO L175 Difference]: Start difference. First operand has 306 places, 1089 transitions, 8350 flow. Second operand 8 states and 4375 transitions. [2022-12-13 15:13:17,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 313 places, 1460 transitions, 11919 flow [2022-12-13 15:14:19,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 1460 transitions, 11918 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 15:14:19,910 INFO L231 Difference]: Finished difference. Result has 315 places, 1110 transitions, 10520 flow [2022-12-13 15:14:19,911 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=8349, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1089, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=553, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=516, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10520, PETRI_PLACES=315, PETRI_TRANSITIONS=1110} [2022-12-13 15:14:19,911 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 44 predicate places. [2022-12-13 15:14:19,911 INFO L495 AbstractCegarLoop]: Abstraction has has 315 places, 1110 transitions, 10520 flow [2022-12-13 15:14:19,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 464.55555555555554) internal successors, (4181), 9 states have internal predecessors, (4181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:14:19,912 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:14:19,912 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:14:19,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 15:14:19,912 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t1Err1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:14:19,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:14:19,913 INFO L85 PathProgramCache]: Analyzing trace with hash 396420355, now seen corresponding path program 1 times [2022-12-13 15:14:19,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:14:19,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569191176] [2022-12-13 15:14:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:14:19,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:14:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:14:20,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:14:20,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:14:20,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569191176] [2022-12-13 15:14:20,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569191176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:14:20,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:14:20,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:14:20,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617932159] [2022-12-13 15:14:20,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:14:20,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:14:20,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:14:20,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:14:20,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:14:21,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 377 out of 887 [2022-12-13 15:14:21,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 1110 transitions, 10520 flow. Second operand has 9 states, 9 states have (on average 379.0) internal successors, (3411), 9 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:14:21,177 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:14:21,177 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 377 of 887 [2022-12-13 15:14:21,177 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 15:15:46,673 INFO L130 PetriNetUnfolder]: 224566/383043 cut-off events. [2022-12-13 15:15:46,673 INFO L131 PetriNetUnfolder]: For 1141815/1150302 co-relation queries the response was YES. [2022-12-13 15:15:48,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1400733 conditions, 383043 events. 224566/383043 cut-off events. For 1141815/1150302 co-relation queries the response was YES. Maximal size of possible extension queue 2637. Compared 3394043 event pairs, 119802 based on Foata normal form. 386/366598 useless extension candidates. Maximal degree in co-relation 1400702. Up to 324151 conditions per place. [2022-12-13 15:15:49,883 INFO L137 encePairwiseOnDemand]: 878/887 looper letters, 1108 selfloop transitions, 41 changer transitions 0/1213 dead transitions. [2022-12-13 15:15:49,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 321 places, 1213 transitions, 13416 flow [2022-12-13 15:15:49,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 15:15:49,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 15:15:49,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 3291 transitions. [2022-12-13 15:15:49,889 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.463782412626832 [2022-12-13 15:15:49,889 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 3291 transitions. [2022-12-13 15:15:49,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 3291 transitions. [2022-12-13 15:15:49,890 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:15:49,890 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 3291 transitions. [2022-12-13 15:15:49,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 411.375) internal successors, (3291), 8 states have internal predecessors, (3291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:15:49,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 887.0) internal successors, (7983), 9 states have internal predecessors, (7983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:15:49,901 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 887.0) internal successors, (7983), 9 states have internal predecessors, (7983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:15:49,901 INFO L175 Difference]: Start difference. First operand has 315 places, 1110 transitions, 10520 flow. Second operand 8 states and 3291 transitions. [2022-12-13 15:15:49,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 321 places, 1213 transitions, 13416 flow [2022-12-13 15:16:57,154 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 1213 transitions, 13061 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 15:16:57,165 INFO L231 Difference]: Finished difference. Result has 317 places, 1109 transitions, 10268 flow [2022-12-13 15:16:57,165 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=887, PETRI_DIFFERENCE_MINUEND_FLOW=10186, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1068, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=10268, PETRI_PLACES=317, PETRI_TRANSITIONS=1109} [2022-12-13 15:16:57,166 INFO L288 CegarLoopForPetriNet]: 271 programPoint places, 46 predicate places. [2022-12-13 15:16:57,166 INFO L495 AbstractCegarLoop]: Abstraction has has 317 places, 1109 transitions, 10268 flow [2022-12-13 15:16:57,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 379.0) internal successors, (3411), 9 states have internal predecessors, (3411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:16:57,166 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 15:16:57,166 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:16:57,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 15:16:57,166 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2022-12-13 15:16:57,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:16:57,167 INFO L85 PathProgramCache]: Analyzing trace with hash 462059617, now seen corresponding path program 3 times [2022-12-13 15:16:57,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:16:57,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812617543] [2022-12-13 15:16:57,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:16:57,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:16:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:16:57,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:16:57,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:16:57,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812617543] [2022-12-13 15:16:57,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812617543] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:16:57,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:16:57,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 15:16:57,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649011465] [2022-12-13 15:16:57,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:16:57,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 15:16:57,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:16:57,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 15:16:57,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 15:16:59,500 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 463 out of 887 [2022-12-13 15:16:59,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 1109 transitions, 10268 flow. Second operand has 9 states, 9 states have (on average 464.55555555555554) internal successors, (4181), 9 states have internal predecessors, (4181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:16:59,502 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 15:16:59,502 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 463 of 887 [2022-12-13 15:16:59,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand