./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/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_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/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_f2131b3d-507f-40b1-a53a-eb928c144e81/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 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 --- 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 16:21:11,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:21:11,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:21:11,761 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:21:11,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:21:11,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:21:11,763 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:21:11,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:21:11,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:21:11,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:21:11,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:21:11,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:21:11,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:21:11,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:21:11,768 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:21:11,769 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:21:11,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:21:11,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:21:11,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:21:11,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:21:11,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:21:11,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:21:11,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:21:11,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:21:11,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:21:11,778 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:21:11,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:21:11,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:21:11,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:21:11,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:21:11,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:21:11,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:21:11,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:21:11,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:21:11,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:21:11,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:21:11,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:21:11,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:21:11,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:21:11,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:21:11,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:21:11,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 16:21:11,801 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:21:11,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:21:11,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:21:11,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:21:11,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:21:11,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:21:11,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:21:11,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:21:11,810 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:21:11,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:21:11,810 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:21:11,810 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:21:11,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:21:11,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:21:11,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:21:11,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:21:11,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:21:11,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:21:11,812 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 16:21:11,812 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:21:11,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:21:11,812 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:21:11,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:21:11,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:21:11,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:21:11,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:21:11,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:21:11,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:21:11,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:21:11,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:21:11,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:21:11,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:21:11,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:21:11,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:21:11,815 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:21:11,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:21:11,815 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:21:11,815 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_f2131b3d-507f-40b1-a53a-eb928c144e81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b7c7619d813e48364b259b1a428c27bb8d838fdbf884f11806f1a0c23ff1cb9 [2022-12-13 16:21:12,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:21:12,025 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:21:12,027 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:21:12,028 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:21:12,028 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:21:12,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-13 16:21:14,641 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:21:14,826 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:21:14,826 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i [2022-12-13 16:21:14,838 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/data/f8a256bf9/0948458d199f4420b2bfeb2fe3730343/FLAG2284cafdc [2022-12-13 16:21:14,847 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/data/f8a256bf9/0948458d199f4420b2bfeb2fe3730343 [2022-12-13 16:21:14,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:21:14,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:21:14,851 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:21:14,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:21:14,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:21:14,854 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2849032f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:14, skipping insertion in model container [2022-12-13 16:21:14,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:21:14" (1/1) ... [2022-12-13 16:21:14,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:21:14,882 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:21:15,105 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_f2131b3d-507f-40b1-a53a-eb928c144e81/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-13 16:21:15,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:21:15,135 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:21:15,159 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_f2131b3d-507f-40b1-a53a-eb928c144e81/sv-benchmarks/c/goblint-regression/28-race_reach_46-escape_racefree.i[30176,30189] [2022-12-13 16:21:15,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:21:15,204 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:21:15,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15 WrapperNode [2022-12-13 16:21:15,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:21:15,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:21:15,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:21:15,206 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:21:15,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,236 INFO L138 Inliner]: procedures = 170, calls = 39, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-12-13 16:21:15,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:21:15,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:21:15,237 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:21:15,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:21:15,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,260 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:21:15,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:21:15,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:21:15,264 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:21:15,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (1/1) ... [2022-12-13 16:21:15,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:21:15,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:21:15,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:21:15,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:21:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:21:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:21:15,313 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 16:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 16:21:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 16:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:21:15,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:21:15,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:21:15,315 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 16:21:15,420 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:21:15,421 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:21:15,660 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:21:15,668 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:21:15,669 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-12-13 16:21:15,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:21:15 BoogieIcfgContainer [2022-12-13 16:21:15,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:21:15,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:21:15,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:21:15,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:21:15,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:21:14" (1/3) ... [2022-12-13 16:21:15,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fe5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:21:15, skipping insertion in model container [2022-12-13 16:21:15,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:21:15" (2/3) ... [2022-12-13 16:21:15,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18fe5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:21:15, skipping insertion in model container [2022-12-13 16:21:15,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:21:15" (3/3) ... [2022-12-13 16:21:15,680 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_46-escape_racefree.i [2022-12-13 16:21:15,688 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 16:21:15,697 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:21:15,697 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 16:21:15,697 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 16:21:15,762 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 16:21:15,795 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 144 places, 149 transitions, 306 flow [2022-12-13 16:21:15,864 INFO L130 PetriNetUnfolder]: 9/148 cut-off events. [2022-12-13 16:21:15,864 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 16:21:15,876 INFO L83 FinitePrefix]: Finished finitePrefix Result has 153 conditions, 148 events. 9/148 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 287 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 96. Up to 3 conditions per place. [2022-12-13 16:21:15,876 INFO L82 GeneralOperation]: Start removeDead. Operand has 144 places, 149 transitions, 306 flow [2022-12-13 16:21:15,880 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 138 transitions, 279 flow [2022-12-13 16:21:15,883 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 16:21:15,891 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 133 places, 138 transitions, 279 flow [2022-12-13 16:21:15,893 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 133 places, 138 transitions, 279 flow [2022-12-13 16:21:15,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 138 transitions, 279 flow [2022-12-13 16:21:15,919 INFO L130 PetriNetUnfolder]: 9/138 cut-off events. [2022-12-13 16:21:15,919 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:21:15,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 142 conditions, 138 events. 9/138 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 233 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 96. Up to 3 conditions per place. [2022-12-13 16:21:15,922 INFO L119 LiptonReduction]: Number of co-enabled transitions 4270 [2022-12-13 16:21:18,558 INFO L134 LiptonReduction]: Checked pairs total: 23245 [2022-12-13 16:21:18,558 INFO L136 LiptonReduction]: Total number of compositions: 88 [2022-12-13 16:21:18,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:21:18,573 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;@5db8cf01, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:21:18,573 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-12-13 16:21:18,578 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-12-13 16:21:18,578 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:21:18,578 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:18,579 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:18,579 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:18,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:18,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1534152395, now seen corresponding path program 1 times [2022-12-13 16:21:18,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:18,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992192124] [2022-12-13 16:21:18,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:18,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:18,996 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 16:21:18,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:18,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992192124] [2022-12-13 16:21:18,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992192124] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:18,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:18,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:21:18,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442364240] [2022-12-13 16:21:18,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:19,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:21:19,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:19,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:21:19,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:21:19,223 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 237 [2022-12-13 16:21:19,225 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 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 16:21:19,225 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:19,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 237 [2022-12-13 16:21:19,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:19,356 INFO L130 PetriNetUnfolder]: 135/370 cut-off events. [2022-12-13 16:21:19,356 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 16:21:19,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 370 events. 135/370 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1526 event pairs, 80 based on Foata normal form. 6/371 useless extension candidates. Maximal degree in co-relation 670. Up to 184 conditions per place. [2022-12-13 16:21:19,360 INFO L137 encePairwiseOnDemand]: 217/237 looper letters, 44 selfloop transitions, 10 changer transitions 0/71 dead transitions. [2022-12-13 16:21:19,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 71 transitions, 253 flow [2022-12-13 16:21:19,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:21:19,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:21:19,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 756 transitions. [2022-12-13 16:21:19,377 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5316455696202531 [2022-12-13 16:21:19,377 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 756 transitions. [2022-12-13 16:21:19,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 756 transitions. [2022-12-13 16:21:19,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:19,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 756 transitions. [2022-12-13 16:21:19,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.0) internal successors, (756), 6 states have internal predecessors, (756), 0 states have call successors, (0), 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 16:21:19,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:19,392 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:19,394 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 125 flow. Second operand 6 states and 756 transitions. [2022-12-13 16:21:19,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 71 transitions, 253 flow [2022-12-13 16:21:19,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 71 transitions, 252 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:21:19,398 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 124 flow [2022-12-13 16:21:19,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=124, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2022-12-13 16:21:19,402 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 2 predicate places. [2022-12-13 16:21:19,402 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 124 flow [2022-12-13 16:21:19,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 115.5) internal successors, (693), 6 states have internal predecessors, (693), 0 states have call successors, (0), 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 16:21:19,403 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:19,403 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:19,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:21:19,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:19,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:19,404 INFO L85 PathProgramCache]: Analyzing trace with hash 620579446, now seen corresponding path program 1 times [2022-12-13 16:21:19,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:19,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260018524] [2022-12-13 16:21:19,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:19,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:19,593 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 16:21:19,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:19,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260018524] [2022-12-13 16:21:19,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260018524] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:19,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:19,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:21:19,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325201910] [2022-12-13 16:21:19,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:19,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:21:19,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:19,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:21:19,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:21:19,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 237 [2022-12-13 16:21:19,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 51 transitions, 124 flow. Second operand has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 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 16:21:19,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:19,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 237 [2022-12-13 16:21:19,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:19,993 INFO L130 PetriNetUnfolder]: 284/847 cut-off events. [2022-12-13 16:21:19,993 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-13 16:21:19,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1570 conditions, 847 events. 284/847 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 4498 event pairs, 48 based on Foata normal form. 0/808 useless extension candidates. Maximal degree in co-relation 1561. Up to 377 conditions per place. [2022-12-13 16:21:19,997 INFO L137 encePairwiseOnDemand]: 223/237 looper letters, 81 selfloop transitions, 37 changer transitions 0/137 dead transitions. [2022-12-13 16:21:19,998 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 137 transitions, 564 flow [2022-12-13 16:21:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:21:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:21:20,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 839 transitions. [2022-12-13 16:21:20,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.590014064697609 [2022-12-13 16:21:20,002 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 839 transitions. [2022-12-13 16:21:20,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 839 transitions. [2022-12-13 16:21:20,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:20,003 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 839 transitions. [2022-12-13 16:21:20,004 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.83333333333334) internal successors, (839), 6 states have internal predecessors, (839), 0 states have call successors, (0), 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 16:21:20,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:20,007 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:20,007 INFO L175 Difference]: Start difference. First operand has 59 places, 51 transitions, 124 flow. Second operand 6 states and 839 transitions. [2022-12-13 16:21:20,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 137 transitions, 564 flow [2022-12-13 16:21:20,009 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 137 transitions, 512 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 16:21:20,010 INFO L231 Difference]: Finished difference. Result has 64 places, 87 transitions, 350 flow [2022-12-13 16:21:20,010 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=350, PETRI_PLACES=64, PETRI_TRANSITIONS=87} [2022-12-13 16:21:20,011 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 7 predicate places. [2022-12-13 16:21:20,011 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 87 transitions, 350 flow [2022-12-13 16:21:20,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 121.5) internal successors, (729), 6 states have internal predecessors, (729), 0 states have call successors, (0), 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 16:21:20,011 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:20,011 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:20,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:21:20,012 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:20,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:20,012 INFO L85 PathProgramCache]: Analyzing trace with hash 921506904, now seen corresponding path program 1 times [2022-12-13 16:21:20,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:20,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060049972] [2022-12-13 16:21:20,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:20,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:20,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:20,265 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 16:21:20,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:20,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060049972] [2022-12-13 16:21:20,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060049972] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:20,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:20,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:21:20,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700448351] [2022-12-13 16:21:20,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:20,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:21:20,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:20,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:21:20,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:21:20,372 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 237 [2022-12-13 16:21:20,374 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 87 transitions, 350 flow. Second operand has 6 states, 6 states have (on average 107.33333333333333) internal successors, (644), 6 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:21:20,374 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:20,374 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 237 [2022-12-13 16:21:20,374 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:20,745 INFO L130 PetriNetUnfolder]: 608/1397 cut-off events. [2022-12-13 16:21:20,745 INFO L131 PetriNetUnfolder]: For 535/550 co-relation queries the response was YES. [2022-12-13 16:21:20,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3417 conditions, 1397 events. 608/1397 cut-off events. For 535/550 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 7278 event pairs, 357 based on Foata normal form. 0/1351 useless extension candidates. Maximal degree in co-relation 3404. Up to 1203 conditions per place. [2022-12-13 16:21:20,750 INFO L137 encePairwiseOnDemand]: 223/237 looper letters, 94 selfloop transitions, 44 changer transitions 0/146 dead transitions. [2022-12-13 16:21:20,750 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 146 transitions, 818 flow [2022-12-13 16:21:20,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:21:20,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:21:20,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 730 transitions. [2022-12-13 16:21:20,753 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5133614627285513 [2022-12-13 16:21:20,753 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 730 transitions. [2022-12-13 16:21:20,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 730 transitions. [2022-12-13 16:21:20,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:20,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 730 transitions. [2022-12-13 16:21:20,754 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.66666666666667) internal successors, (730), 6 states have internal predecessors, (730), 0 states have call successors, (0), 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 16:21:20,756 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:20,756 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:20,756 INFO L175 Difference]: Start difference. First operand has 64 places, 87 transitions, 350 flow. Second operand 6 states and 730 transitions. [2022-12-13 16:21:20,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 146 transitions, 818 flow [2022-12-13 16:21:20,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 146 transitions, 818 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 16:21:20,761 INFO L231 Difference]: Finished difference. Result has 73 places, 126 transitions, 656 flow [2022-12-13 16:21:20,761 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=350, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=656, PETRI_PLACES=73, PETRI_TRANSITIONS=126} [2022-12-13 16:21:20,761 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 16 predicate places. [2022-12-13 16:21:20,762 INFO L495 AbstractCegarLoop]: Abstraction has has 73 places, 126 transitions, 656 flow [2022-12-13 16:21:20,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 107.33333333333333) internal successors, (644), 6 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:21:20,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:20,762 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:20,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 16:21:20,762 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:20,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:20,763 INFO L85 PathProgramCache]: Analyzing trace with hash -169324183, now seen corresponding path program 1 times [2022-12-13 16:21:20,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:20,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295225409] [2022-12-13 16:21:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:20,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:20,928 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 16:21:20,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:20,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295225409] [2022-12-13 16:21:20,929 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295225409] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:20,929 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:20,929 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:21:20,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611914682] [2022-12-13 16:21:20,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:20,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:21:20,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:20,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:21:20,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:21:21,146 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 237 [2022-12-13 16:21:21,148 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 126 transitions, 656 flow. Second operand has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 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 16:21:21,148 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:21,148 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 237 [2022-12-13 16:21:21,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:21,481 INFO L130 PetriNetUnfolder]: 505/1286 cut-off events. [2022-12-13 16:21:21,481 INFO L131 PetriNetUnfolder]: For 848/874 co-relation queries the response was YES. [2022-12-13 16:21:21,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3541 conditions, 1286 events. 505/1286 cut-off events. For 848/874 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 7250 event pairs, 122 based on Foata normal form. 2/1256 useless extension candidates. Maximal degree in co-relation 3523. Up to 737 conditions per place. [2022-12-13 16:21:21,487 INFO L137 encePairwiseOnDemand]: 223/237 looper letters, 121 selfloop transitions, 72 changer transitions 12/242 dead transitions. [2022-12-13 16:21:21,487 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 242 transitions, 1577 flow [2022-12-13 16:21:21,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:21:21,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:21:21,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 838 transitions. [2022-12-13 16:21:21,489 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5893108298171589 [2022-12-13 16:21:21,489 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 838 transitions. [2022-12-13 16:21:21,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 838 transitions. [2022-12-13 16:21:21,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:21,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 838 transitions. [2022-12-13 16:21:21,491 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 139.66666666666666) internal successors, (838), 6 states have internal predecessors, (838), 0 states have call successors, (0), 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 16:21:21,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:21,493 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:21,493 INFO L175 Difference]: Start difference. First operand has 73 places, 126 transitions, 656 flow. Second operand 6 states and 838 transitions. [2022-12-13 16:21:21,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 242 transitions, 1577 flow [2022-12-13 16:21:21,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 242 transitions, 1553 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-12-13 16:21:21,501 INFO L231 Difference]: Finished difference. Result has 83 places, 193 transitions, 1368 flow [2022-12-13 16:21:21,501 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=632, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1368, PETRI_PLACES=83, PETRI_TRANSITIONS=193} [2022-12-13 16:21:21,502 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 26 predicate places. [2022-12-13 16:21:21,502 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 193 transitions, 1368 flow [2022-12-13 16:21:21,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 122.0) internal successors, (732), 6 states have internal predecessors, (732), 0 states have call successors, (0), 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 16:21:21,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:21,502 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:21,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 16:21:21,503 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:21,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:21,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1287823730, now seen corresponding path program 1 times [2022-12-13 16:21:21,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:21,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797174782] [2022-12-13 16:21:21,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:21,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:21,548 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 16:21:21,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:21,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797174782] [2022-12-13 16:21:21,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797174782] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:21,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:21,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:21:21,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613312915] [2022-12-13 16:21:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:21,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:21:21,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:21,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:21:21,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:21:21,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 237 [2022-12-13 16:21:21,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 193 transitions, 1368 flow. Second operand has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 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 16:21:21,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:21,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 237 [2022-12-13 16:21:21,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:21,713 INFO L130 PetriNetUnfolder]: 255/865 cut-off events. [2022-12-13 16:21:21,713 INFO L131 PetriNetUnfolder]: For 1114/1161 co-relation queries the response was YES. [2022-12-13 16:21:21,715 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2669 conditions, 865 events. 255/865 cut-off events. For 1114/1161 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 5227 event pairs, 25 based on Foata normal form. 9/864 useless extension candidates. Maximal degree in co-relation 2646. Up to 228 conditions per place. [2022-12-13 16:21:21,717 INFO L137 encePairwiseOnDemand]: 230/237 looper letters, 53 selfloop transitions, 6 changer transitions 5/171 dead transitions. [2022-12-13 16:21:21,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 171 transitions, 1237 flow [2022-12-13 16:21:21,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:21:21,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:21:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 427 transitions. [2022-12-13 16:21:21,718 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.60056258790436 [2022-12-13 16:21:21,718 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 427 transitions. [2022-12-13 16:21:21,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 427 transitions. [2022-12-13 16:21:21,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:21,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 427 transitions. [2022-12-13 16:21:21,719 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 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 16:21:21,720 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 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 16:21:21,720 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 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 16:21:21,721 INFO L175 Difference]: Start difference. First operand has 83 places, 193 transitions, 1368 flow. Second operand 3 states and 427 transitions. [2022-12-13 16:21:21,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 171 transitions, 1237 flow [2022-12-13 16:21:21,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 171 transitions, 1163 flow, removed 37 selfloop flow, removed 0 redundant places. [2022-12-13 16:21:21,728 INFO L231 Difference]: Finished difference. Result has 86 places, 150 transitions, 945 flow [2022-12-13 16:21:21,728 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=913, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=945, PETRI_PLACES=86, PETRI_TRANSITIONS=150} [2022-12-13 16:21:21,729 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2022-12-13 16:21:21,729 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 150 transitions, 945 flow [2022-12-13 16:21:21,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 132.0) internal successors, (396), 3 states have internal predecessors, (396), 0 states have call successors, (0), 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 16:21:21,729 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:21,729 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:21,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 16:21:21,730 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:21,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:21,730 INFO L85 PathProgramCache]: Analyzing trace with hash -322257554, now seen corresponding path program 1 times [2022-12-13 16:21:21,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:21,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507450354] [2022-12-13 16:21:21,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:21,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:21,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:22,009 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 16:21:22,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:22,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507450354] [2022-12-13 16:21:22,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507450354] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:22,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:22,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:21:22,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175614709] [2022-12-13 16:21:22,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:22,010 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:21:22,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:22,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:21:22,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:21:22,475 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 237 [2022-12-13 16:21:22,476 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 150 transitions, 945 flow. Second operand has 11 states, 11 states have (on average 102.18181818181819) internal successors, (1124), 11 states have internal predecessors, (1124), 0 states have call successors, (0), 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 16:21:22,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:22,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 237 [2022-12-13 16:21:22,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:22,877 INFO L130 PetriNetUnfolder]: 524/1315 cut-off events. [2022-12-13 16:21:22,878 INFO L131 PetriNetUnfolder]: For 1396/1398 co-relation queries the response was YES. [2022-12-13 16:21:22,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4470 conditions, 1315 events. 524/1315 cut-off events. For 1396/1398 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 7422 event pairs, 241 based on Foata normal form. 0/1314 useless extension candidates. Maximal degree in co-relation 4445. Up to 960 conditions per place. [2022-12-13 16:21:22,885 INFO L137 encePairwiseOnDemand]: 228/237 looper letters, 148 selfloop transitions, 32 changer transitions 0/189 dead transitions. [2022-12-13 16:21:22,885 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 189 transitions, 1529 flow [2022-12-13 16:21:22,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:21:22,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:21:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 976 transitions. [2022-12-13 16:21:22,888 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4575714955461791 [2022-12-13 16:21:22,888 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 976 transitions. [2022-12-13 16:21:22,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 976 transitions. [2022-12-13 16:21:22,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:22,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 976 transitions. [2022-12-13 16:21:22,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 108.44444444444444) internal successors, (976), 9 states have internal predecessors, (976), 0 states have call successors, (0), 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 16:21:22,894 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 237.0) internal successors, (2370), 10 states have internal predecessors, (2370), 0 states have call successors, (0), 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 16:21:22,894 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 237.0) internal successors, (2370), 10 states have internal predecessors, (2370), 0 states have call successors, (0), 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 16:21:22,895 INFO L175 Difference]: Start difference. First operand has 86 places, 150 transitions, 945 flow. Second operand 9 states and 976 transitions. [2022-12-13 16:21:22,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 189 transitions, 1529 flow [2022-12-13 16:21:22,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 189 transitions, 1517 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 16:21:22,903 INFO L231 Difference]: Finished difference. Result has 92 places, 149 transitions, 999 flow [2022-12-13 16:21:22,903 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=999, PETRI_PLACES=92, PETRI_TRANSITIONS=149} [2022-12-13 16:21:22,903 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 35 predicate places. [2022-12-13 16:21:22,903 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 149 transitions, 999 flow [2022-12-13 16:21:22,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 102.18181818181819) internal successors, (1124), 11 states have internal predecessors, (1124), 0 states have call successors, (0), 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 16:21:22,904 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:22,904 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:22,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 16:21:22,904 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:22,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:22,904 INFO L85 PathProgramCache]: Analyzing trace with hash -469331161, now seen corresponding path program 1 times [2022-12-13 16:21:22,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:22,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810272222] [2022-12-13 16:21:22,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:22,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:23,191 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 16:21:23,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:23,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810272222] [2022-12-13 16:21:23,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810272222] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:23,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:23,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:21:23,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611326959] [2022-12-13 16:21:23,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:23,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:21:23,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:23,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:21:23,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:21:23,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237 [2022-12-13 16:21:23,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 149 transitions, 999 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:23,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:23,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237 [2022-12-13 16:21:23,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:24,314 INFO L130 PetriNetUnfolder]: 514/1328 cut-off events. [2022-12-13 16:21:24,315 INFO L131 PetriNetUnfolder]: For 1633/1635 co-relation queries the response was YES. [2022-12-13 16:21:24,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4690 conditions, 1328 events. 514/1328 cut-off events. For 1633/1635 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 7847 event pairs, 59 based on Foata normal form. 29/1351 useless extension candidates. Maximal degree in co-relation 4663. Up to 455 conditions per place. [2022-12-13 16:21:24,324 INFO L137 encePairwiseOnDemand]: 228/237 looper letters, 213 selfloop transitions, 30 changer transitions 12/275 dead transitions. [2022-12-13 16:21:24,324 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 275 transitions, 2205 flow [2022-12-13 16:21:24,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:21:24,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 16:21:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1295 transitions. [2022-12-13 16:21:24,327 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5464135021097046 [2022-12-13 16:21:24,327 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1295 transitions. [2022-12-13 16:21:24,327 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1295 transitions. [2022-12-13 16:21:24,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:24,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1295 transitions. [2022-12-13 16:21:24,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.5) internal successors, (1295), 10 states have internal predecessors, (1295), 0 states have call successors, (0), 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 16:21:24,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 237.0) internal successors, (2607), 11 states have internal predecessors, (2607), 0 states have call successors, (0), 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 16:21:24,335 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 237.0) internal successors, (2607), 11 states have internal predecessors, (2607), 0 states have call successors, (0), 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 16:21:24,335 INFO L175 Difference]: Start difference. First operand has 92 places, 149 transitions, 999 flow. Second operand 10 states and 1295 transitions. [2022-12-13 16:21:24,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 275 transitions, 2205 flow [2022-12-13 16:21:24,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 275 transitions, 2069 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-12-13 16:21:24,350 INFO L231 Difference]: Finished difference. Result has 98 places, 172 transitions, 1213 flow [2022-12-13 16:21:24,350 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=935, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1213, PETRI_PLACES=98, PETRI_TRANSITIONS=172} [2022-12-13 16:21:24,351 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 41 predicate places. [2022-12-13 16:21:24,351 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 172 transitions, 1213 flow [2022-12-13 16:21:24,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:24,352 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:24,352 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:24,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 16:21:24,352 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:24,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:24,352 INFO L85 PathProgramCache]: Analyzing trace with hash 631935645, now seen corresponding path program 2 times [2022-12-13 16:21:24,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:24,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275848125] [2022-12-13 16:21:24,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:24,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:24,799 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 16:21:24,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:24,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275848125] [2022-12-13 16:21:24,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275848125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:24,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:24,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:21:24,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557337915] [2022-12-13 16:21:24,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:24,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:21:24,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:24,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:21:24,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:21:25,261 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237 [2022-12-13 16:21:25,262 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 172 transitions, 1213 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:25,262 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:25,262 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237 [2022-12-13 16:21:25,262 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:25,809 INFO L130 PetriNetUnfolder]: 531/1409 cut-off events. [2022-12-13 16:21:25,809 INFO L131 PetriNetUnfolder]: For 2715/2720 co-relation queries the response was YES. [2022-12-13 16:21:25,814 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5490 conditions, 1409 events. 531/1409 cut-off events. For 2715/2720 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 8670 event pairs, 83 based on Foata normal form. 17/1419 useless extension candidates. Maximal degree in co-relation 5458. Up to 740 conditions per place. [2022-12-13 16:21:25,819 INFO L137 encePairwiseOnDemand]: 220/237 looper letters, 149 selfloop transitions, 69 changer transitions 15/253 dead transitions. [2022-12-13 16:21:25,819 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 253 transitions, 2020 flow [2022-12-13 16:21:25,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:21:25,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:21:25,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1191 transitions. [2022-12-13 16:21:25,823 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5583684950773559 [2022-12-13 16:21:25,823 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1191 transitions. [2022-12-13 16:21:25,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1191 transitions. [2022-12-13 16:21:25,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:25,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1191 transitions. [2022-12-13 16:21:25,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 132.33333333333334) internal successors, (1191), 9 states have internal predecessors, (1191), 0 states have call successors, (0), 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 16:21:25,829 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 237.0) internal successors, (2370), 10 states have internal predecessors, (2370), 0 states have call successors, (0), 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 16:21:25,830 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 237.0) internal successors, (2370), 10 states have internal predecessors, (2370), 0 states have call successors, (0), 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 16:21:25,830 INFO L175 Difference]: Start difference. First operand has 98 places, 172 transitions, 1213 flow. Second operand 9 states and 1191 transitions. [2022-12-13 16:21:25,830 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 253 transitions, 2020 flow [2022-12-13 16:21:25,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 253 transitions, 2010 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 16:21:25,852 INFO L231 Difference]: Finished difference. Result has 106 places, 182 transitions, 1541 flow [2022-12-13 16:21:25,852 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1207, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1541, PETRI_PLACES=106, PETRI_TRANSITIONS=182} [2022-12-13 16:21:25,853 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 49 predicate places. [2022-12-13 16:21:25,853 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 182 transitions, 1541 flow [2022-12-13 16:21:25,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:25,854 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:25,854 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:25,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 16:21:25,854 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:25,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:25,854 INFO L85 PathProgramCache]: Analyzing trace with hash -750846105, now seen corresponding path program 3 times [2022-12-13 16:21:25,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:25,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339363567] [2022-12-13 16:21:25,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:25,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:25,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:26,189 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 16:21:26,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:26,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339363567] [2022-12-13 16:21:26,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339363567] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:26,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:26,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:21:26,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454075785] [2022-12-13 16:21:26,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:26,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:21:26,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:26,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:21:26,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:21:26,810 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237 [2022-12-13 16:21:26,811 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 182 transitions, 1541 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:26,811 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:26,811 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237 [2022-12-13 16:21:26,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:27,489 INFO L130 PetriNetUnfolder]: 594/1610 cut-off events. [2022-12-13 16:21:27,489 INFO L131 PetriNetUnfolder]: For 4721/4726 co-relation queries the response was YES. [2022-12-13 16:21:27,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6831 conditions, 1610 events. 594/1610 cut-off events. For 4721/4726 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 10365 event pairs, 78 based on Foata normal form. 21/1620 useless extension candidates. Maximal degree in co-relation 6796. Up to 569 conditions per place. [2022-12-13 16:21:27,495 INFO L137 encePairwiseOnDemand]: 220/237 looper letters, 209 selfloop transitions, 98 changer transitions 16/343 dead transitions. [2022-12-13 16:21:27,495 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 343 transitions, 3230 flow [2022-12-13 16:21:27,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:21:27,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 16:21:27,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1331 transitions. [2022-12-13 16:21:27,497 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5616033755274261 [2022-12-13 16:21:27,498 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1331 transitions. [2022-12-13 16:21:27,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1331 transitions. [2022-12-13 16:21:27,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:27,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1331 transitions. [2022-12-13 16:21:27,499 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 133.1) internal successors, (1331), 10 states have internal predecessors, (1331), 0 states have call successors, (0), 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 16:21:27,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 237.0) internal successors, (2607), 11 states have internal predecessors, (2607), 0 states have call successors, (0), 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 16:21:27,502 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 237.0) internal successors, (2607), 11 states have internal predecessors, (2607), 0 states have call successors, (0), 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 16:21:27,502 INFO L175 Difference]: Start difference. First operand has 106 places, 182 transitions, 1541 flow. Second operand 10 states and 1331 transitions. [2022-12-13 16:21:27,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 343 transitions, 3230 flow [2022-12-13 16:21:27,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 343 transitions, 3162 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 16:21:27,521 INFO L231 Difference]: Finished difference. Result has 116 places, 224 transitions, 2341 flow [2022-12-13 16:21:27,521 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1486, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2341, PETRI_PLACES=116, PETRI_TRANSITIONS=224} [2022-12-13 16:21:27,522 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 59 predicate places. [2022-12-13 16:21:27,522 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 224 transitions, 2341 flow [2022-12-13 16:21:27,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:27,523 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:27,523 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:27,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 16:21:27,523 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:27,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:27,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1999428263, now seen corresponding path program 4 times [2022-12-13 16:21:27,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:27,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031546155] [2022-12-13 16:21:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:27,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:27,801 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 16:21:27,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:27,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031546155] [2022-12-13 16:21:27,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031546155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:27,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:27,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:21:27,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660958213] [2022-12-13 16:21:27,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:27,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:21:27,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:27,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:21:27,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:21:28,333 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237 [2022-12-13 16:21:28,334 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 224 transitions, 2341 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:28,334 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:28,335 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237 [2022-12-13 16:21:28,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:28,983 INFO L130 PetriNetUnfolder]: 634/1758 cut-off events. [2022-12-13 16:21:28,983 INFO L131 PetriNetUnfolder]: For 8340/8350 co-relation queries the response was YES. [2022-12-13 16:21:28,986 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8087 conditions, 1758 events. 634/1758 cut-off events. For 8340/8350 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 11801 event pairs, 95 based on Foata normal form. 21/1771 useless extension candidates. Maximal degree in co-relation 8045. Up to 861 conditions per place. [2022-12-13 16:21:28,990 INFO L137 encePairwiseOnDemand]: 220/237 looper letters, 191 selfloop transitions, 106 changer transitions 18/335 dead transitions. [2022-12-13 16:21:28,990 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 335 transitions, 3588 flow [2022-12-13 16:21:28,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:21:28,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 16:21:28,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1328 transitions. [2022-12-13 16:21:28,994 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.560337552742616 [2022-12-13 16:21:28,994 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1328 transitions. [2022-12-13 16:21:28,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1328 transitions. [2022-12-13 16:21:28,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:28,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1328 transitions. [2022-12-13 16:21:28,997 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.8) internal successors, (1328), 10 states have internal predecessors, (1328), 0 states have call successors, (0), 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 16:21:29,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 237.0) internal successors, (2607), 11 states have internal predecessors, (2607), 0 states have call successors, (0), 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 16:21:29,001 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 237.0) internal successors, (2607), 11 states have internal predecessors, (2607), 0 states have call successors, (0), 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 16:21:29,001 INFO L175 Difference]: Start difference. First operand has 116 places, 224 transitions, 2341 flow. Second operand 10 states and 1328 transitions. [2022-12-13 16:21:29,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 335 transitions, 3588 flow [2022-12-13 16:21:29,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 335 transitions, 3539 flow, removed 23 selfloop flow, removed 2 redundant places. [2022-12-13 16:21:29,046 INFO L231 Difference]: Finished difference. Result has 128 places, 244 transitions, 2984 flow [2022-12-13 16:21:29,047 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2292, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=119, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=2984, PETRI_PLACES=128, PETRI_TRANSITIONS=244} [2022-12-13 16:21:29,047 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 71 predicate places. [2022-12-13 16:21:29,047 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 244 transitions, 2984 flow [2022-12-13 16:21:29,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:29,048 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:29,048 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:29,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 16:21:29,048 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:29,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:29,049 INFO L85 PathProgramCache]: Analyzing trace with hash 469109877, now seen corresponding path program 5 times [2022-12-13 16:21:29,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:29,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444056181] [2022-12-13 16:21:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:29,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:29,382 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 16:21:29,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:29,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444056181] [2022-12-13 16:21:29,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444056181] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:29,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:29,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 16:21:29,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846922344] [2022-12-13 16:21:29,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:29,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 16:21:29,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:29,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 16:21:29,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-12-13 16:21:30,036 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 237 [2022-12-13 16:21:30,037 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 244 transitions, 2984 flow. Second operand has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:30,037 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:30,037 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 237 [2022-12-13 16:21:30,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:30,760 INFO L130 PetriNetUnfolder]: 613/1764 cut-off events. [2022-12-13 16:21:30,760 INFO L131 PetriNetUnfolder]: For 10829/10839 co-relation queries the response was YES. [2022-12-13 16:21:30,764 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8690 conditions, 1764 events. 613/1764 cut-off events. For 10829/10839 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 12105 event pairs, 71 based on Foata normal form. 21/1776 useless extension candidates. Maximal degree in co-relation 8642. Up to 730 conditions per place. [2022-12-13 16:21:30,770 INFO L137 encePairwiseOnDemand]: 220/237 looper letters, 214 selfloop transitions, 113 changer transitions 19/366 dead transitions. [2022-12-13 16:21:30,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 366 transitions, 4444 flow [2022-12-13 16:21:30,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 16:21:30,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-12-13 16:21:30,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1329 transitions. [2022-12-13 16:21:30,773 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5607594936708861 [2022-12-13 16:21:30,773 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1329 transitions. [2022-12-13 16:21:30,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1329 transitions. [2022-12-13 16:21:30,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:30,773 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1329 transitions. [2022-12-13 16:21:30,775 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 132.9) internal successors, (1329), 10 states have internal predecessors, (1329), 0 states have call successors, (0), 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 16:21:30,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 237.0) internal successors, (2607), 11 states have internal predecessors, (2607), 0 states have call successors, (0), 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 16:21:30,777 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 237.0) internal successors, (2607), 11 states have internal predecessors, (2607), 0 states have call successors, (0), 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 16:21:30,777 INFO L175 Difference]: Start difference. First operand has 128 places, 244 transitions, 2984 flow. Second operand 10 states and 1329 transitions. [2022-12-13 16:21:30,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 366 transitions, 4444 flow [2022-12-13 16:21:30,809 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 366 transitions, 4326 flow, removed 18 selfloop flow, removed 8 redundant places. [2022-12-13 16:21:30,813 INFO L231 Difference]: Finished difference. Result has 132 places, 260 transitions, 3548 flow [2022-12-13 16:21:30,813 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=2860, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3548, PETRI_PLACES=132, PETRI_TRANSITIONS=260} [2022-12-13 16:21:30,813 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 75 predicate places. [2022-12-13 16:21:30,814 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 260 transitions, 3548 flow [2022-12-13 16:21:30,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 118.54545454545455) internal successors, (1304), 11 states have internal predecessors, (1304), 0 states have call successors, (0), 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 16:21:30,814 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:30,814 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:30,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 16:21:30,814 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:30,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash 429856927, now seen corresponding path program 1 times [2022-12-13 16:21:30,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:30,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566699792] [2022-12-13 16:21:30,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:30,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:30,972 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 16:21:30,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:30,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566699792] [2022-12-13 16:21:30,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566699792] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:30,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:30,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:21:30,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520793016] [2022-12-13 16:21:30,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:30,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 16:21:30,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:30,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 16:21:30,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 16:21:31,051 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 237 [2022-12-13 16:21:31,052 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 260 transitions, 3548 flow. Second operand has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 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 16:21:31,052 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:31,052 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 237 [2022-12-13 16:21:31,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:31,469 INFO L130 PetriNetUnfolder]: 780/2085 cut-off events. [2022-12-13 16:21:31,469 INFO L131 PetriNetUnfolder]: For 13660/13680 co-relation queries the response was YES. [2022-12-13 16:21:31,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10783 conditions, 2085 events. 780/2085 cut-off events. For 13660/13680 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 14033 event pairs, 256 based on Foata normal form. 7/2056 useless extension candidates. Maximal degree in co-relation 10734. Up to 1637 conditions per place. [2022-12-13 16:21:31,478 INFO L137 encePairwiseOnDemand]: 222/237 looper letters, 183 selfloop transitions, 75 changer transitions 95/363 dead transitions. [2022-12-13 16:21:31,478 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 363 transitions, 5211 flow [2022-12-13 16:21:31,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 16:21:31,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 16:21:31,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 731 transitions. [2022-12-13 16:21:31,481 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5140646976090014 [2022-12-13 16:21:31,481 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 731 transitions. [2022-12-13 16:21:31,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 731 transitions. [2022-12-13 16:21:31,482 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:31,482 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 731 transitions. [2022-12-13 16:21:31,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 0 states have call successors, (0), 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 16:21:31,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:31,488 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 237.0) internal successors, (1659), 7 states have internal predecessors, (1659), 0 states have call successors, (0), 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 16:21:31,488 INFO L175 Difference]: Start difference. First operand has 132 places, 260 transitions, 3548 flow. Second operand 6 states and 731 transitions. [2022-12-13 16:21:31,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 363 transitions, 5211 flow [2022-12-13 16:21:31,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 363 transitions, 4988 flow, removed 54 selfloop flow, removed 5 redundant places. [2022-12-13 16:21:31,550 INFO L231 Difference]: Finished difference. Result has 137 places, 248 transitions, 3081 flow [2022-12-13 16:21:31,550 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=3404, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3081, PETRI_PLACES=137, PETRI_TRANSITIONS=248} [2022-12-13 16:21:31,551 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 80 predicate places. [2022-12-13 16:21:31,551 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 248 transitions, 3081 flow [2022-12-13 16:21:31,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 109.5) internal successors, (657), 6 states have internal predecessors, (657), 0 states have call successors, (0), 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 16:21:31,552 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:31,552 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:31,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 16:21:31,552 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:31,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:31,553 INFO L85 PathProgramCache]: Analyzing trace with hash 724673800, now seen corresponding path program 1 times [2022-12-13 16:21:31,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:31,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849708664] [2022-12-13 16:21:31,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:31,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:31,623 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 16:21:31,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:31,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849708664] [2022-12-13 16:21:31,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849708664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:31,623 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:31,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:21:31,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683063145] [2022-12-13 16:21:31,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:31,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 16:21:31,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:31,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 16:21:31,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 16:21:31,643 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 237 [2022-12-13 16:21:31,643 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 248 transitions, 3081 flow. Second operand has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 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 16:21:31,644 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:31,644 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 237 [2022-12-13 16:21:31,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:31,865 INFO L130 PetriNetUnfolder]: 289/1154 cut-off events. [2022-12-13 16:21:31,865 INFO L131 PetriNetUnfolder]: For 9548/9608 co-relation queries the response was YES. [2022-12-13 16:21:31,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6231 conditions, 1154 events. 289/1154 cut-off events. For 9548/9608 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 8074 event pairs, 7 based on Foata normal form. 23/1174 useless extension candidates. Maximal degree in co-relation 6180. Up to 258 conditions per place. [2022-12-13 16:21:31,871 INFO L137 encePairwiseOnDemand]: 229/237 looper letters, 56 selfloop transitions, 8 changer transitions 7/219 dead transitions. [2022-12-13 16:21:31,871 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 219 transitions, 2868 flow [2022-12-13 16:21:31,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 16:21:31,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 16:21:31,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 420 transitions. [2022-12-13 16:21:31,872 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5907172995780591 [2022-12-13 16:21:31,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 420 transitions. [2022-12-13 16:21:31,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 420 transitions. [2022-12-13 16:21:31,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:31,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 420 transitions. [2022-12-13 16:21:31,873 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 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 16:21:31,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 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 16:21:31,873 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 237.0) internal successors, (948), 4 states have internal predecessors, (948), 0 states have call successors, (0), 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 16:21:31,874 INFO L175 Difference]: Start difference. First operand has 137 places, 248 transitions, 3081 flow. Second operand 3 states and 420 transitions. [2022-12-13 16:21:31,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 219 transitions, 2868 flow [2022-12-13 16:21:31,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 219 transitions, 2401 flow, removed 109 selfloop flow, removed 14 redundant places. [2022-12-13 16:21:31,912 INFO L231 Difference]: Finished difference. Result has 123 places, 193 transitions, 2026 flow [2022-12-13 16:21:31,912 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1998, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2026, PETRI_PLACES=123, PETRI_TRANSITIONS=193} [2022-12-13 16:21:31,913 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2022-12-13 16:21:31,913 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 193 transitions, 2026 flow [2022-12-13 16:21:31,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.0) internal successors, (399), 3 states have internal predecessors, (399), 0 states have call successors, (0), 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 16:21:31,913 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 16:21:31,913 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:31,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 16:21:31,913 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2022-12-13 16:21:31,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:21:31,914 INFO L85 PathProgramCache]: Analyzing trace with hash -2107788353, now seen corresponding path program 1 times [2022-12-13 16:21:31,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:21:31,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271148312] [2022-12-13 16:21:31,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:21:31,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:21:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:21:32,191 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 16:21:32,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:21:32,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271148312] [2022-12-13 16:21:32,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271148312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:21:32,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:21:32,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 16:21:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898634052] [2022-12-13 16:21:32,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:21:32,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 16:21:32,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:21:32,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 16:21:32,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 16:21:32,438 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 237 [2022-12-13 16:21:32,438 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 193 transitions, 2026 flow. Second operand has 10 states, 10 states have (on average 103.7) internal successors, (1037), 10 states have internal predecessors, (1037), 0 states have call successors, (0), 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 16:21:32,438 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 16:21:32,439 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 237 [2022-12-13 16:21:32,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 16:21:32,829 INFO L130 PetriNetUnfolder]: 586/1649 cut-off events. [2022-12-13 16:21:32,829 INFO L131 PetriNetUnfolder]: For 12351/12356 co-relation queries the response was YES. [2022-12-13 16:21:32,833 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8720 conditions, 1649 events. 586/1649 cut-off events. For 12351/12356 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 10747 event pairs, 247 based on Foata normal form. 29/1678 useless extension candidates. Maximal degree in co-relation 8676. Up to 1105 conditions per place. [2022-12-13 16:21:32,835 INFO L137 encePairwiseOnDemand]: 229/237 looper letters, 0 selfloop transitions, 0 changer transitions 244/244 dead transitions. [2022-12-13 16:21:32,835 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 244 transitions, 2955 flow [2022-12-13 16:21:32,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 16:21:32,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-13 16:21:32,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 977 transitions. [2022-12-13 16:21:32,837 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4580403187998125 [2022-12-13 16:21:32,837 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 977 transitions. [2022-12-13 16:21:32,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 977 transitions. [2022-12-13 16:21:32,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 16:21:32,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 977 transitions. [2022-12-13 16:21:32,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 108.55555555555556) internal successors, (977), 9 states have internal predecessors, (977), 0 states have call successors, (0), 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 16:21:32,841 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 237.0) internal successors, (2370), 10 states have internal predecessors, (2370), 0 states have call successors, (0), 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 16:21:32,841 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 237.0) internal successors, (2370), 10 states have internal predecessors, (2370), 0 states have call successors, (0), 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 16:21:32,842 INFO L175 Difference]: Start difference. First operand has 123 places, 193 transitions, 2026 flow. Second operand 9 states and 977 transitions. [2022-12-13 16:21:32,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 244 transitions, 2955 flow [2022-12-13 16:21:32,904 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 244 transitions, 2828 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 16:21:32,906 INFO L231 Difference]: Finished difference. Result has 123 places, 0 transitions, 0 flow [2022-12-13 16:21:32,906 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=1910, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=123, PETRI_TRANSITIONS=0} [2022-12-13 16:21:32,906 INFO L288 CegarLoopForPetriNet]: 57 programPoint places, 66 predicate places. [2022-12-13 16:21:32,906 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 0 transitions, 0 flow [2022-12-13 16:21:32,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 103.7) internal successors, (1037), 10 states have internal predecessors, (1037), 0 states have call successors, (0), 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 16:21:32,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2022-12-13 16:21:32,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2022-12-13 16:21:32,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 11 remaining) [2022-12-13 16:21:32,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2022-12-13 16:21:32,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2022-12-13 16:21:32,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2022-12-13 16:21:32,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2022-12-13 16:21:32,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2022-12-13 16:21:32,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2022-12-13 16:21:32,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2022-12-13 16:21:32,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2022-12-13 16:21:32,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-13 16:21:32,911 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:21:32,916 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 16:21:32,917 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:21:32,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:21:32 BasicIcfg [2022-12-13 16:21:32,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:21:32,920 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:21:32,920 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:21:32,920 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:21:32,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:21:15" (3/4) ... [2022-12-13 16:21:32,923 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 16:21:32,929 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 16:21:32,932 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-13 16:21:32,933 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 16:21:32,933 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 16:21:32,933 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 16:21:32,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:21:32,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:21:32,955 INFO L158 Benchmark]: Toolchain (without parser) took 18105.69ms. Allocated memory was 153.1MB in the beginning and 272.6MB in the end (delta: 119.5MB). Free memory was 113.3MB in the beginning and 174.2MB in the end (delta: -60.9MB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB. [2022-12-13 16:21:32,956 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:21:32,956 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.27ms. Allocated memory is still 153.1MB. Free memory was 113.3MB in the beginning and 93.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 16:21:32,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.96ms. Allocated memory is still 153.1MB. Free memory was 93.3MB in the beginning and 90.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:21:32,956 INFO L158 Benchmark]: Boogie Preprocessor took 26.14ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 88.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:21:32,956 INFO L158 Benchmark]: RCFGBuilder took 407.82ms. Allocated memory is still 153.1MB. Free memory was 88.6MB in the beginning and 70.7MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 16:21:32,957 INFO L158 Benchmark]: TraceAbstraction took 17245.77ms. Allocated memory was 153.1MB in the beginning and 272.6MB in the end (delta: 119.5MB). Free memory was 69.7MB in the beginning and 176.3MB in the end (delta: -106.5MB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. [2022-12-13 16:21:32,957 INFO L158 Benchmark]: Witness Printer took 35.01ms. Allocated memory is still 272.6MB. Free memory was 176.3MB in the beginning and 174.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:21:32,958 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 121.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.27ms. Allocated memory is still 153.1MB. Free memory was 113.3MB in the beginning and 93.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.96ms. Allocated memory is still 153.1MB. Free memory was 93.3MB in the beginning and 90.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.14ms. Allocated memory is still 153.1MB. Free memory was 90.7MB in the beginning and 88.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 407.82ms. Allocated memory is still 153.1MB. Free memory was 88.6MB in the beginning and 70.7MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17245.77ms. Allocated memory was 153.1MB in the beginning and 272.6MB in the end (delta: 119.5MB). Free memory was 69.7MB in the beginning and 176.3MB in the end (delta: -106.5MB). Peak memory consumption was 112.5MB. Max. memory is 16.1GB. * Witness Printer took 35.01ms. Allocated memory is still 272.6MB. Free memory was 176.3MB in the beginning and 174.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.7s, 133 PlacesBefore, 57 PlacesAfterwards, 138 TransitionsBefore, 61 TransitionsAfterwards, 4270 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 88 TotalNumberOfCompositions, 23245 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4609, independent: 3897, independent conditional: 0, independent unconditional: 3897, dependent: 712, dependent conditional: 0, dependent unconditional: 712, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1941, independent: 1852, independent conditional: 0, independent unconditional: 1852, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 4609, independent: 2045, independent conditional: 0, independent unconditional: 2045, dependent: 623, dependent conditional: 0, dependent unconditional: 623, unknown: 1941, unknown conditional: 0, unknown unconditional: 1941] , Statistics on independence cache: Total cache size (in pairs): 283, Positive cache size: 234, Positive conditional cache size: 0, Positive unconditional cache size: 234, Negative cache size: 49, Negative conditional cache size: 0, Negative unconditional cache size: 49, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 713]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 711]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 702]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 198 locations, 11 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 17.1s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 10.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3649 SdHoareTripleChecker+Valid, 7.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2855 mSDsluCounter, 1311 SdHoareTripleChecker+Invalid, 6.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1187 mSDsCounter, 1091 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11541 IncrementalHoareTripleChecker+Invalid, 12632 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1091 mSolverCounterUnsat, 124 mSDtfsCounter, 11541 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3548occurred in iteration=11, InterpolantAutomatonStates: 103, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 345 NumberOfCodeBlocks, 345 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 331 ConstructedInterpolants, 0 QuantifiedInterpolants, 3279 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 16:21:32,973 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2131b3d-507f-40b1-a53a-eb928c144e81/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE