./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/05_tas.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/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_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/05_tas.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/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_c45f064e-bf02-4f0a-b959-fbf4f0691018/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 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 --- 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 17:33:57,183 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:33:57,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:33:57,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:33:57,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:33:57,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:33:57,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:33:57,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:33:57,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:33:57,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:33:57,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:33:57,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:33:57,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:33:57,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:33:57,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:33:57,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:33:57,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:33:57,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:33:57,216 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:33:57,218 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:33:57,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:33:57,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:33:57,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:33:57,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:33:57,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:33:57,226 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:33:57,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:33:57,227 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:33:57,227 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:33:57,228 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:33:57,228 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:33:57,229 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:33:57,230 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:33:57,231 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:33:57,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:33:57,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:33:57,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:33:57,233 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:33:57,233 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:33:57,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:33:57,234 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:33:57,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 17:33:57,253 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:33:57,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:33:57,254 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:33:57,254 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:33:57,255 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:33:57,255 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:33:57,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:33:57,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:33:57,262 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:33:57,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:33:57,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 17:33:57,263 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:33:57,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:33:57,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:33:57,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:33:57,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:33:57,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:33:57,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:33:57,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:33:57,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:33:57,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:33:57,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:33:57,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:33:57,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:33:57,265 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:33:57,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:33:57,265 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:33:57,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:33:57,266 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:33:57,266 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_c45f064e-bf02-4f0a-b959-fbf4f0691018/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ee4025da2c93fbd4be930880192a9e0c94d8979f3d9117e228b55f99542c3b0 [2022-12-13 17:33:57,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:33:57,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:33:57,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:33:57,446 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:33:57,446 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:33:57,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-ext/05_tas.i [2022-12-13 17:33:59,941 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:34:00,108 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:34:00,109 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/sv-benchmarks/c/pthread-ext/05_tas.i [2022-12-13 17:34:00,117 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/data/e0d481736/499a2e2208bf4da094c43e115e12848e/FLAGea13c73c2 [2022-12-13 17:34:00,497 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/data/e0d481736/499a2e2208bf4da094c43e115e12848e [2022-12-13 17:34:00,500 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:34:00,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:34:00,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:34:00,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:34:00,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:34:00,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6482ca3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00, skipping insertion in model container [2022-12-13 17:34:00,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:34:00,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:34:00,791 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_c45f064e-bf02-4f0a-b959-fbf4f0691018/sv-benchmarks/c/pthread-ext/05_tas.i[30203,30216] [2022-12-13 17:34:00,793 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_c45f064e-bf02-4f0a-b959-fbf4f0691018/sv-benchmarks/c/pthread-ext/05_tas.i[30300,30313] [2022-12-13 17:34:00,796 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_c45f064e-bf02-4f0a-b959-fbf4f0691018/sv-benchmarks/c/pthread-ext/05_tas.i[30446,30459] [2022-12-13 17:34:00,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:34:00,806 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:34:00,841 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_c45f064e-bf02-4f0a-b959-fbf4f0691018/sv-benchmarks/c/pthread-ext/05_tas.i[30203,30216] [2022-12-13 17:34:00,843 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_c45f064e-bf02-4f0a-b959-fbf4f0691018/sv-benchmarks/c/pthread-ext/05_tas.i[30300,30313] [2022-12-13 17:34:00,845 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_c45f064e-bf02-4f0a-b959-fbf4f0691018/sv-benchmarks/c/pthread-ext/05_tas.i[30446,30459] [2022-12-13 17:34:00,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:34:00,877 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:34:00,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00 WrapperNode [2022-12-13 17:34:00,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:34:00,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:34:00,879 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:34:00,879 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:34:00,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,900 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,925 INFO L138 Inliner]: procedures = 169, calls = 26, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 172 [2022-12-13 17:34:00,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:34:00,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:34:00,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:34:00,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:34:00,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,953 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:34:00,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:34:00,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:34:00,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:34:00,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (1/1) ... [2022-12-13 17:34:00,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:34:00,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:34:00,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:34:00,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c45f064e-bf02-4f0a-b959-fbf4f0691018/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:34:01,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:34:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 17:34:01,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 17:34:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:34:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:34:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:34:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:34:01,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:34:01,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:34:01,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:34:01,026 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 17:34:01,122 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:34:01,123 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:34:01,439 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:34:01,561 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:34:01,561 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 17:34:01,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:34:01 BoogieIcfgContainer [2022-12-13 17:34:01,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:34:01,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:34:01,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:34:01,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:34:01,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:34:00" (1/3) ... [2022-12-13 17:34:01,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242b5b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:34:01, skipping insertion in model container [2022-12-13 17:34:01,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:34:00" (2/3) ... [2022-12-13 17:34:01,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242b5b67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:34:01, skipping insertion in model container [2022-12-13 17:34:01,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:34:01" (3/3) ... [2022-12-13 17:34:01,573 INFO L112 eAbstractionObserver]: Analyzing ICFG 05_tas.i [2022-12-13 17:34:01,581 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:34:01,589 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:34:01,589 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-12-13 17:34:01,589 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:34:01,648 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:34:01,677 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 145 transitions, 295 flow [2022-12-13 17:34:01,715 INFO L130 PetriNetUnfolder]: 10/156 cut-off events. [2022-12-13 17:34:01,715 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:34:01,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 156 events. 10/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 126. Up to 4 conditions per place. [2022-12-13 17:34:01,720 INFO L82 GeneralOperation]: Start removeDead. Operand has 139 places, 145 transitions, 295 flow [2022-12-13 17:34:01,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 145 transitions, 295 flow [2022-12-13 17:34:01,726 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:34:01,733 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 139 places, 145 transitions, 295 flow [2022-12-13 17:34:01,736 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 139 places, 145 transitions, 295 flow [2022-12-13 17:34:01,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 139 places, 145 transitions, 295 flow [2022-12-13 17:34:01,757 INFO L130 PetriNetUnfolder]: 10/156 cut-off events. [2022-12-13 17:34:01,758 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:34:01,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 161 conditions, 156 events. 10/156 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 159 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 126. Up to 4 conditions per place. [2022-12-13 17:34:01,760 INFO L119 LiptonReduction]: Number of co-enabled transitions 3164 [2022-12-13 17:34:05,922 INFO L134 LiptonReduction]: Checked pairs total: 4201 [2022-12-13 17:34:05,922 INFO L136 LiptonReduction]: Total number of compositions: 162 [2022-12-13 17:34:05,933 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:34:05,937 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;@28dff38d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:34:05,938 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-12-13 17:34:05,940 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 17:34:05,940 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:34:05,940 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:05,940 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:34:05,941 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-12-13 17:34:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:05,944 INFO L85 PathProgramCache]: Analyzing trace with hash 716177177, now seen corresponding path program 1 times [2022-12-13 17:34:05,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:05,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283548213] [2022-12-13 17:34:05,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:05,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:06,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:06,082 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 17:34:06,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:06,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283548213] [2022-12-13 17:34:06,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283548213] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:06,083 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:06,083 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:34:06,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835437019] [2022-12-13 17:34:06,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:06,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:34:06,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:34:06,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:34:06,108 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 307 [2022-12-13 17:34:06,110 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 35 transitions, 75 flow. Second operand has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 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 17:34:06,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:06,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 307 [2022-12-13 17:34:06,111 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:06,182 INFO L130 PetriNetUnfolder]: 25/62 cut-off events. [2022-12-13 17:34:06,182 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:34:06,182 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 62 events. 25/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 118 event pairs, 19 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 113. Up to 60 conditions per place. [2022-12-13 17:34:06,184 INFO L137 encePairwiseOnDemand]: 289/307 looper letters, 15 selfloop transitions, 0 changer transitions 0/17 dead transitions. [2022-12-13 17:34:06,184 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 19 places, 17 transitions, 69 flow [2022-12-13 17:34:06,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:34:06,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:34:06,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 283 transitions. [2022-12-13 17:34:06,197 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4609120521172638 [2022-12-13 17:34:06,198 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 283 transitions. [2022-12-13 17:34:06,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 283 transitions. [2022-12-13 17:34:06,199 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:06,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 283 transitions. [2022-12-13 17:34:06,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 141.5) internal successors, (283), 2 states have internal predecessors, (283), 0 states have call successors, (0), 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 17:34:06,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 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 17:34:06,210 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 307.0) internal successors, (921), 3 states have internal predecessors, (921), 0 states have call successors, (0), 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 17:34:06,212 INFO L175 Difference]: Start difference. First operand has 35 places, 35 transitions, 75 flow. Second operand 2 states and 283 transitions. [2022-12-13 17:34:06,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 19 places, 17 transitions, 69 flow [2022-12-13 17:34:06,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 17 transitions, 69 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:34:06,216 INFO L231 Difference]: Finished difference. Result has 19 places, 17 transitions, 39 flow [2022-12-13 17:34:06,217 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=307, PETRI_DIFFERENCE_MINUEND_FLOW=39, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=39, PETRI_PLACES=19, PETRI_TRANSITIONS=17} [2022-12-13 17:34:06,220 INFO L288 CegarLoopForPetriNet]: 35 programPoint places, -16 predicate places. [2022-12-13 17:34:06,221 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 17 transitions, 39 flow [2022-12-13 17:34:06,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 127.0) internal successors, (254), 2 states have internal predecessors, (254), 0 states have call successors, (0), 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 17:34:06,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:06,221 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 17:34:06,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:34:06,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-12-13 17:34:06,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:06,222 INFO L85 PathProgramCache]: Analyzing trace with hash 726783712, now seen corresponding path program 1 times [2022-12-13 17:34:06,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:06,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555211836] [2022-12-13 17:34:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:06,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:06,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:34:06,245 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:34:06,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:34:06,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:34:06,276 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:34:06,277 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2022-12-13 17:34:06,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2022-12-13 17:34:06,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2022-12-13 17:34:06,279 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2022-12-13 17:34:06,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2022-12-13 17:34:06,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2022-12-13 17:34:06,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2022-12-13 17:34:06,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2022-12-13 17:34:06,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2022-12-13 17:34:06,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2022-12-13 17:34:06,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2022-12-13 17:34:06,280 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2022-12-13 17:34:06,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2022-12-13 17:34:06,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2022-12-13 17:34:06,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2022-12-13 17:34:06,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2022-12-13 17:34:06,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2022-12-13 17:34:06,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2022-12-13 17:34:06,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2022-12-13 17:34:06,281 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2022-12-13 17:34:06,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2022-12-13 17:34:06,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2022-12-13 17:34:06,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2022-12-13 17:34:06,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2022-12-13 17:34:06,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2022-12-13 17:34:06,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2022-12-13 17:34:06,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2022-12-13 17:34:06,282 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2022-12-13 17:34:06,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2022-12-13 17:34:06,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2022-12-13 17:34:06,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2022-12-13 17:34:06,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2022-12-13 17:34:06,283 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2022-12-13 17:34:06,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:34:06,283 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 17:34:06,285 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 17:34:06,285 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 17:34:06,345 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:34:06,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 259 transitions, 530 flow [2022-12-13 17:34:06,407 INFO L130 PetriNetUnfolder]: 19/283 cut-off events. [2022-12-13 17:34:06,407 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:34:06,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 283 events. 19/283 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 631 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 239. Up to 6 conditions per place. [2022-12-13 17:34:06,413 INFO L82 GeneralOperation]: Start removeDead. Operand has 247 places, 259 transitions, 530 flow [2022-12-13 17:34:06,417 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 247 places, 259 transitions, 530 flow [2022-12-13 17:34:06,417 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:34:06,417 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 247 places, 259 transitions, 530 flow [2022-12-13 17:34:06,417 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 247 places, 259 transitions, 530 flow [2022-12-13 17:34:06,417 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 247 places, 259 transitions, 530 flow [2022-12-13 17:34:06,466 INFO L130 PetriNetUnfolder]: 19/283 cut-off events. [2022-12-13 17:34:06,467 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 17:34:06,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 283 events. 19/283 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 631 event pairs, 0 based on Foata normal form. 0/229 useless extension candidates. Maximal degree in co-relation 239. Up to 6 conditions per place. [2022-12-13 17:34:06,482 INFO L119 LiptonReduction]: Number of co-enabled transitions 32092 [2022-12-13 17:34:16,872 INFO L134 LiptonReduction]: Checked pairs total: 143992 [2022-12-13 17:34:16,873 INFO L136 LiptonReduction]: Total number of compositions: 133 [2022-12-13 17:34:16,875 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:34:16,876 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;@28dff38d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:34:16,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2022-12-13 17:34:16,878 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 17:34:16,878 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:34:16,878 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:16,878 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:34:16,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-12-13 17:34:16,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:16,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1024131750, now seen corresponding path program 1 times [2022-12-13 17:34:16,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:16,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775752378] [2022-12-13 17:34:16,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:16,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:16,913 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 17:34:16,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:16,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775752378] [2022-12-13 17:34:16,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775752378] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:16,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:16,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:34:16,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021007390] [2022-12-13 17:34:16,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:16,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:34:16,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:16,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:34:16,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:34:16,916 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 392 [2022-12-13 17:34:16,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 158 transitions, 328 flow. Second operand has 2 states, 2 states have (on average 223.5) internal successors, (447), 2 states have internal predecessors, (447), 0 states have call successors, (0), 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 17:34:16,917 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:16,917 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 392 [2022-12-13 17:34:16,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:17,430 INFO L130 PetriNetUnfolder]: 1187/3630 cut-off events. [2022-12-13 17:34:17,430 INFO L131 PetriNetUnfolder]: For 63/63 co-relation queries the response was YES. [2022-12-13 17:34:17,434 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5649 conditions, 3630 events. 1187/3630 cut-off events. For 63/63 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 28762 event pairs, 1032 based on Foata normal form. 263/3470 useless extension candidates. Maximal degree in co-relation 4175. Up to 1944 conditions per place. [2022-12-13 17:34:17,443 INFO L137 encePairwiseOnDemand]: 369/392 looper letters, 42 selfloop transitions, 0 changer transitions 0/133 dead transitions. [2022-12-13 17:34:17,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 133 transitions, 362 flow [2022-12-13 17:34:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:34:17,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:34:17,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 507 transitions. [2022-12-13 17:34:17,447 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6466836734693877 [2022-12-13 17:34:17,447 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 507 transitions. [2022-12-13 17:34:17,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 507 transitions. [2022-12-13 17:34:17,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:17,448 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 507 transitions. [2022-12-13 17:34:17,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 253.5) internal successors, (507), 2 states have internal predecessors, (507), 0 states have call successors, (0), 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 17:34:17,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 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 17:34:17,453 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 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 17:34:17,453 INFO L175 Difference]: Start difference. First operand has 151 places, 158 transitions, 328 flow. Second operand 2 states and 507 transitions. [2022-12-13 17:34:17,453 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 133 transitions, 362 flow [2022-12-13 17:34:17,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 133 transitions, 360 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-13 17:34:17,456 INFO L231 Difference]: Finished difference. Result has 135 places, 133 transitions, 276 flow [2022-12-13 17:34:17,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=276, PETRI_PLACES=135, PETRI_TRANSITIONS=133} [2022-12-13 17:34:17,457 INFO L288 CegarLoopForPetriNet]: 151 programPoint places, -16 predicate places. [2022-12-13 17:34:17,457 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 276 flow [2022-12-13 17:34:17,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 223.5) internal successors, (447), 2 states have internal predecessors, (447), 0 states have call successors, (0), 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 17:34:17,457 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:17,457 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 17:34:17,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:34:17,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 45 more)] === [2022-12-13 17:34:17,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:17,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1736166081, now seen corresponding path program 1 times [2022-12-13 17:34:17,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:17,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696051511] [2022-12-13 17:34:17,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:17,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:34:17,476 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:34:17,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:34:17,492 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:34:17,492 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:34:17,492 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 49 remaining) [2022-12-13 17:34:17,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 49 remaining) [2022-12-13 17:34:17,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 49 remaining) [2022-12-13 17:34:17,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 49 remaining) [2022-12-13 17:34:17,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 49 remaining) [2022-12-13 17:34:17,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 49 remaining) [2022-12-13 17:34:17,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 49 remaining) [2022-12-13 17:34:17,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 49 remaining) [2022-12-13 17:34:17,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 49 remaining) [2022-12-13 17:34:17,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 49 remaining) [2022-12-13 17:34:17,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 49 remaining) [2022-12-13 17:34:17,494 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 49 remaining) [2022-12-13 17:34:17,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 49 remaining) [2022-12-13 17:34:17,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 49 remaining) [2022-12-13 17:34:17,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 49 remaining) [2022-12-13 17:34:17,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 49 remaining) [2022-12-13 17:34:17,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 49 remaining) [2022-12-13 17:34:17,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 49 remaining) [2022-12-13 17:34:17,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 49 remaining) [2022-12-13 17:34:17,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 49 remaining) [2022-12-13 17:34:17,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 49 remaining) [2022-12-13 17:34:17,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 49 remaining) [2022-12-13 17:34:17,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 49 remaining) [2022-12-13 17:34:17,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 49 remaining) [2022-12-13 17:34:17,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 49 remaining) [2022-12-13 17:34:17,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 49 remaining) [2022-12-13 17:34:17,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 49 remaining) [2022-12-13 17:34:17,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 49 remaining) [2022-12-13 17:34:17,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 49 remaining) [2022-12-13 17:34:17,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 49 remaining) [2022-12-13 17:34:17,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 49 remaining) [2022-12-13 17:34:17,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 49 remaining) [2022-12-13 17:34:17,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 49 remaining) [2022-12-13 17:34:17,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 49 remaining) [2022-12-13 17:34:17,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 49 remaining) [2022-12-13 17:34:17,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 49 remaining) [2022-12-13 17:34:17,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 49 remaining) [2022-12-13 17:34:17,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 49 remaining) [2022-12-13 17:34:17,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 49 remaining) [2022-12-13 17:34:17,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 49 remaining) [2022-12-13 17:34:17,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 49 remaining) [2022-12-13 17:34:17,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 49 remaining) [2022-12-13 17:34:17,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 49 remaining) [2022-12-13 17:34:17,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 49 remaining) [2022-12-13 17:34:17,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 49 remaining) [2022-12-13 17:34:17,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 49 remaining) [2022-12-13 17:34:17,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 49 remaining) [2022-12-13 17:34:17,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 49 remaining) [2022-12-13 17:34:17,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 49 remaining) [2022-12-13 17:34:17,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:34:17,501 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 17:34:17,502 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 17:34:17,502 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-13 17:34:17,547 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:34:17,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 355 places, 373 transitions, 767 flow [2022-12-13 17:34:17,630 INFO L130 PetriNetUnfolder]: 28/410 cut-off events. [2022-12-13 17:34:17,630 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 17:34:17,633 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 410 events. 28/410 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1291 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 352. Up to 8 conditions per place. [2022-12-13 17:34:17,633 INFO L82 GeneralOperation]: Start removeDead. Operand has 355 places, 373 transitions, 767 flow [2022-12-13 17:34:17,637 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 355 places, 373 transitions, 767 flow [2022-12-13 17:34:17,637 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:34:17,637 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 355 places, 373 transitions, 767 flow [2022-12-13 17:34:17,638 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 355 places, 373 transitions, 767 flow [2022-12-13 17:34:17,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 355 places, 373 transitions, 767 flow [2022-12-13 17:34:17,696 INFO L130 PetriNetUnfolder]: 28/410 cut-off events. [2022-12-13 17:34:17,696 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 17:34:17,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 410 events. 28/410 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1291 event pairs, 0 based on Foata normal form. 0/330 useless extension candidates. Maximal degree in co-relation 352. Up to 8 conditions per place. [2022-12-13 17:34:17,715 INFO L119 LiptonReduction]: Number of co-enabled transitions 86784 [2022-12-13 17:34:27,810 INFO L134 LiptonReduction]: Checked pairs total: 413761 [2022-12-13 17:34:27,810 INFO L136 LiptonReduction]: Total number of compositions: 193 [2022-12-13 17:34:27,812 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:34:27,812 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;@28dff38d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:34:27,812 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2022-12-13 17:34:27,813 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2022-12-13 17:34:27,813 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 17:34:27,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:27,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:34:27,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-12-13 17:34:27,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:27,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1896911599, now seen corresponding path program 1 times [2022-12-13 17:34:27,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:27,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270784091] [2022-12-13 17:34:27,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:27,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:27,835 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 17:34:27,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:27,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270784091] [2022-12-13 17:34:27,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270784091] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:27,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:27,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:34:27,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100069316] [2022-12-13 17:34:27,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:27,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:34:27,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:27,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:34:27,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:34:27,836 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 317 out of 566 [2022-12-13 17:34:27,837 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 236 transitions, 493 flow. Second operand has 2 states, 2 states have (on average 319.5) internal successors, (639), 2 states have internal predecessors, (639), 0 states have call successors, (0), 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 17:34:27,837 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:27,837 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 317 of 566 [2022-12-13 17:34:27,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:34,621 INFO L130 PetriNetUnfolder]: 29032/64300 cut-off events. [2022-12-13 17:34:34,622 INFO L131 PetriNetUnfolder]: For 1963/1963 co-relation queries the response was YES. [2022-12-13 17:34:34,719 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105725 conditions, 64300 events. 29032/64300 cut-off events. For 1963/1963 co-relation queries the response was YES. Maximal size of possible extension queue 1198. Compared 705298 event pairs, 25296 based on Foata normal form. 6533/63843 useless extension candidates. Maximal degree in co-relation 52145. Up to 40051 conditions per place. [2022-12-13 17:34:34,950 INFO L137 encePairwiseOnDemand]: 532/566 looper letters, 57 selfloop transitions, 0 changer transitions 0/195 dead transitions. [2022-12-13 17:34:34,950 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 195 transitions, 525 flow [2022-12-13 17:34:34,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:34:34,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:34:34,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 725 transitions. [2022-12-13 17:34:34,952 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6404593639575972 [2022-12-13 17:34:34,952 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 725 transitions. [2022-12-13 17:34:34,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 725 transitions. [2022-12-13 17:34:34,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:34,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 725 transitions. [2022-12-13 17:34:34,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 362.5) internal successors, (725), 2 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 17:34:34,957 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 566.0) internal successors, (1698), 3 states have internal predecessors, (1698), 0 states have call successors, (0), 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 17:34:34,958 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 566.0) internal successors, (1698), 3 states have internal predecessors, (1698), 0 states have call successors, (0), 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 17:34:34,958 INFO L175 Difference]: Start difference. First operand has 225 places, 236 transitions, 493 flow. Second operand 2 states and 725 transitions. [2022-12-13 17:34:34,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 195 transitions, 525 flow [2022-12-13 17:34:34,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 195 transitions, 519 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-12-13 17:34:34,963 INFO L231 Difference]: Finished difference. Result has 197 places, 195 transitions, 405 flow [2022-12-13 17:34:34,963 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=566, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=405, PETRI_PLACES=197, PETRI_TRANSITIONS=195} [2022-12-13 17:34:34,964 INFO L288 CegarLoopForPetriNet]: 225 programPoint places, -28 predicate places. [2022-12-13 17:34:34,964 INFO L495 AbstractCegarLoop]: Abstraction has has 197 places, 195 transitions, 405 flow [2022-12-13 17:34:34,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 319.5) internal successors, (639), 2 states have internal predecessors, (639), 0 states have call successors, (0), 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 17:34:34,964 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:34,964 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:34:34,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:34:34,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-12-13 17:34:34,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:34,965 INFO L85 PathProgramCache]: Analyzing trace with hash 634078712, now seen corresponding path program 1 times [2022-12-13 17:34:34,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:34,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266574368] [2022-12-13 17:34:34,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:34,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:34:35,207 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 17:34:35,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:34:35,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266574368] [2022-12-13 17:34:35,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266574368] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:34:35,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:34:35,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:34:35,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811595596] [2022-12-13 17:34:35,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:34:35,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:34:35,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:34:35,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:34:35,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:34:35,759 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 290 out of 566 [2022-12-13 17:34:35,761 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 195 transitions, 405 flow. Second operand has 6 states, 6 states have (on average 291.6666666666667) internal successors, (1750), 6 states have internal predecessors, (1750), 0 states have call successors, (0), 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 17:34:35,761 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:34:35,761 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 290 of 566 [2022-12-13 17:34:35,761 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:34:54,537 INFO L130 PetriNetUnfolder]: 107206/186942 cut-off events. [2022-12-13 17:34:54,537 INFO L131 PetriNetUnfolder]: For 2961/2961 co-relation queries the response was YES. [2022-12-13 17:34:54,862 INFO L83 FinitePrefix]: Finished finitePrefix Result has 338269 conditions, 186942 events. 107206/186942 cut-off events. For 2961/2961 co-relation queries the response was YES. Maximal size of possible extension queue 3349. Compared 1923092 event pairs, 50492 based on Foata normal form. 0/168056 useless extension candidates. Maximal degree in co-relation 338263. Up to 102253 conditions per place. [2022-12-13 17:34:55,510 INFO L137 encePairwiseOnDemand]: 539/566 looper letters, 206 selfloop transitions, 61 changer transitions 0/385 dead transitions. [2022-12-13 17:34:55,511 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 385 transitions, 1359 flow [2022-12-13 17:34:55,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:34:55,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:34:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2009 transitions. [2022-12-13 17:34:55,516 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5915783274440518 [2022-12-13 17:34:55,516 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2009 transitions. [2022-12-13 17:34:55,516 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2009 transitions. [2022-12-13 17:34:55,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:34:55,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2009 transitions. [2022-12-13 17:34:55,520 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 334.8333333333333) internal successors, (2009), 6 states have internal predecessors, (2009), 0 states have call successors, (0), 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 17:34:55,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 566.0) internal successors, (3962), 7 states have internal predecessors, (3962), 0 states have call successors, (0), 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 17:34:55,525 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 566.0) internal successors, (3962), 7 states have internal predecessors, (3962), 0 states have call successors, (0), 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 17:34:55,526 INFO L175 Difference]: Start difference. First operand has 197 places, 195 transitions, 405 flow. Second operand 6 states and 2009 transitions. [2022-12-13 17:34:55,526 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 385 transitions, 1359 flow [2022-12-13 17:34:55,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 385 transitions, 1359 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:34:55,533 INFO L231 Difference]: Finished difference. Result has 207 places, 255 transitions, 821 flow [2022-12-13 17:34:55,533 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=566, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=821, PETRI_PLACES=207, PETRI_TRANSITIONS=255} [2022-12-13 17:34:55,534 INFO L288 CegarLoopForPetriNet]: 225 programPoint places, -18 predicate places. [2022-12-13 17:34:55,534 INFO L495 AbstractCegarLoop]: Abstraction has has 207 places, 255 transitions, 821 flow [2022-12-13 17:34:55,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 291.6666666666667) internal successors, (1750), 6 states have internal predecessors, (1750), 0 states have call successors, (0), 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 17:34:55,535 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:34:55,535 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-12-13 17:34:55,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:34:55,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2022-12-13 17:34:55,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:34:55,536 INFO L85 PathProgramCache]: Analyzing trace with hash -830511671, now seen corresponding path program 1 times [2022-12-13 17:34:55,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:34:55,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061453223] [2022-12-13 17:34:55,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:34:55,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:34:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:34:55,546 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:34:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:34:55,555 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:34:55,555 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:34:55,555 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2022-12-13 17:34:55,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2022-12-13 17:34:55,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2022-12-13 17:34:55,555 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2022-12-13 17:34:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2022-12-13 17:34:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2022-12-13 17:34:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2022-12-13 17:34:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2022-12-13 17:34:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2022-12-13 17:34:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2022-12-13 17:34:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2022-12-13 17:34:55,556 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2022-12-13 17:34:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2022-12-13 17:34:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2022-12-13 17:34:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2022-12-13 17:34:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2022-12-13 17:34:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2022-12-13 17:34:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2022-12-13 17:34:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2022-12-13 17:34:55,557 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2022-12-13 17:34:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2022-12-13 17:34:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2022-12-13 17:34:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2022-12-13 17:34:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2022-12-13 17:34:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2022-12-13 17:34:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2022-12-13 17:34:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2022-12-13 17:34:55,558 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2022-12-13 17:34:55,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2022-12-13 17:34:55,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2022-12-13 17:34:55,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2022-12-13 17:34:55,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2022-12-13 17:34:55,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2022-12-13 17:34:55,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2022-12-13 17:34:55,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2022-12-13 17:34:55,559 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2022-12-13 17:34:55,560 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2022-12-13 17:34:55,561 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2022-12-13 17:34:55,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2022-12-13 17:34:55,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2022-12-13 17:34:55,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2022-12-13 17:34:55,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2022-12-13 17:34:55,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2022-12-13 17:34:55,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2022-12-13 17:34:55,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2022-12-13 17:34:55,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2022-12-13 17:34:55,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2022-12-13 17:34:55,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2022-12-13 17:34:55,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2022-12-13 17:34:55,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:34:55,563 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 17:34:55,564 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 17:34:55,564 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-12-13 17:34:55,623 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 17:34:55,625 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 463 places, 487 transitions, 1006 flow [2022-12-13 17:34:55,711 INFO L130 PetriNetUnfolder]: 37/537 cut-off events. [2022-12-13 17:34:55,711 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 17:34:55,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 537 events. 37/537 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2033 event pairs, 0 based on Foata normal form. 0/431 useless extension candidates. Maximal degree in co-relation 465. Up to 10 conditions per place. [2022-12-13 17:34:55,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 463 places, 487 transitions, 1006 flow [2022-12-13 17:34:55,723 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 463 places, 487 transitions, 1006 flow [2022-12-13 17:34:55,723 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:34:55,723 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 463 places, 487 transitions, 1006 flow [2022-12-13 17:34:55,723 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 463 places, 487 transitions, 1006 flow [2022-12-13 17:34:55,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 463 places, 487 transitions, 1006 flow [2022-12-13 17:34:55,809 INFO L130 PetriNetUnfolder]: 37/537 cut-off events. [2022-12-13 17:34:55,810 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-12-13 17:34:55,815 INFO L83 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 537 events. 37/537 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2033 event pairs, 0 based on Foata normal form. 0/431 useless extension candidates. Maximal degree in co-relation 465. Up to 10 conditions per place. [2022-12-13 17:34:55,845 INFO L119 LiptonReduction]: Number of co-enabled transitions 167240 [2022-12-13 17:35:11,583 INFO L134 LiptonReduction]: Checked pairs total: 931751 [2022-12-13 17:35:11,583 INFO L136 LiptonReduction]: Total number of compositions: 247 [2022-12-13 17:35:11,584 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:35:11,585 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;@28dff38d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:35:11,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2022-12-13 17:35:11,586 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 17:35:11,586 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:35:11,586 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:35:11,586 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 17:35:11,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 77 more)] === [2022-12-13 17:35:11,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:35:11,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1206645941, now seen corresponding path program 1 times [2022-12-13 17:35:11,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:35:11,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290318182] [2022-12-13 17:35:11,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:35:11,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:35:11,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:35:11,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:35:11,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:35:11,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290318182] [2022-12-13 17:35:11,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290318182] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:35:11,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:35:11,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:35:11,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31589605] [2022-12-13 17:35:11,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:35:11,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:35:11,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:35:11,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:35:11,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:35:11,599 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 413 out of 734 [2022-12-13 17:35:11,599 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 296 places, 311 transitions, 654 flow. Second operand has 2 states, 2 states have (on average 415.5) internal successors, (831), 2 states have internal predecessors, (831), 0 states have call successors, (0), 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 17:35:11,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:35:11,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 413 of 734 [2022-12-13 17:35:11,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand