./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/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_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/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_20206d4f-7a8a-4cbf-af3d-3e673edc527a/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 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 --- 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 17:05:48,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:05:48,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:05:48,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:05:48,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:05:48,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:05:48,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:05:48,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:05:48,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:05:48,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:05:48,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:05:48,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:05:48,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:05:48,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:05:48,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:05:48,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:05:48,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:05:48,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:05:48,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:05:48,323 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:05:48,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:05:48,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:05:48,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:05:48,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:05:48,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:05:48,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:05:48,328 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:05:48,329 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:05:48,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:05:48,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:05:48,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:05:48,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:05:48,331 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:05:48,332 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:05:48,332 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:05:48,332 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:05:48,333 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:05:48,333 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:05:48,333 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:05:48,334 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:05:48,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:05:48,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 17:05:48,358 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:05:48,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:05:48,358 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:05:48,358 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:05:48,359 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:05:48,359 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:05:48,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:05:48,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:05:48,366 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:05:48,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:05:48,366 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 17:05:48,366 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:05:48,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:05:48,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 17:05:48,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:05:48,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:05:48,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:05:48,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:05:48,367 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 17:05:48,367 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 17:05:48,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:05:48,368 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:05:48,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:05:48,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:05:48,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:05:48,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:05:48,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:05:48,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:05:48,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:05:48,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:05:48,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:05:48,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:05:48,370 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:05:48,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:05:48,370 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:05:48,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:05:48,370 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:05:48,370 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_20206d4f-7a8a-4cbf-af3d-3e673edc527a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2022-12-13 17:05:48,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:05:48,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:05:48,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:05:48,553 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:05:48,554 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:05:48,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-12-13 17:05:51,074 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:05:51,270 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:05:51,271 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-12-13 17:05:51,280 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/data/f922067f7/6ce5b44c14c543d9a174480bb15ccc73/FLAG08a2a104e [2022-12-13 17:05:51,652 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/data/f922067f7/6ce5b44c14c543d9a174480bb15ccc73 [2022-12-13 17:05:51,655 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:05:51,657 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:05:51,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:05:51,659 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:05:51,663 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:05:51,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:05:51" (1/1) ... [2022-12-13 17:05:51,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd44133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:51, skipping insertion in model container [2022-12-13 17:05:51,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:05:51" (1/1) ... [2022-12-13 17:05:51,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:05:51,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:05:51,837 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:05:51,990 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_20206d4f-7a8a-4cbf-af3d-3e673edc527a/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-12-13 17:05:51,996 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:05:51,998 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:05:52,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:05:52,000 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:05:52,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:05:52,016 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:05:52,026 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:05:52,041 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_20206d4f-7a8a-4cbf-af3d-3e673edc527a/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-12-13 17:05:52,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:05:52,042 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:05:52,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-12-13 17:05:52,043 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-12-13 17:05:52,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:05:52,089 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:05:52,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52 WrapperNode [2022-12-13 17:05:52,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:05:52,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:05:52,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:05:52,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:05:52,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,122 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-12-13 17:05:52,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:05:52,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:05:52,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:05:52,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:05:52,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,145 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:05:52,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:05:52,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:05:52,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:05:52,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (1/1) ... [2022-12-13 17:05:52,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:05:52,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:05:52,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:05:52,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:05:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-12-13 17:05:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:05:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:05:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-12-13 17:05:52,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 17:05:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-12-13 17:05:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-12-13 17:05:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 17:05:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 17:05:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 17:05:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 17:05:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-12-13 17:05:52,196 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-12-13 17:05:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 17:05:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 17:05:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:05:52,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:05:52,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:05:52,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:05:52,198 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 17:05:52,310 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:05:52,312 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:05:52,553 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:05:52,586 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:05:52,586 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:05:52,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:05:52 BoogieIcfgContainer [2022-12-13 17:05:52,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:05:52,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:05:52,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:05:52,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:05:52,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:05:51" (1/3) ... [2022-12-13 17:05:52,595 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2d33d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:05:52, skipping insertion in model container [2022-12-13 17:05:52,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:05:52" (2/3) ... [2022-12-13 17:05:52,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2d33d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:05:52, skipping insertion in model container [2022-12-13 17:05:52,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:05:52" (3/3) ... [2022-12-13 17:05:52,597 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2022-12-13 17:05:52,604 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 17:05:52,618 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:05:52,618 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-12-13 17:05:52,618 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 17:05:52,712 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-12-13 17:05:52,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 285 transitions, 677 flow [2022-12-13 17:05:52,789 INFO L130 PetriNetUnfolder]: 7/198 cut-off events. [2022-12-13 17:05:52,789 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 17:05:52,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228 conditions, 198 events. 7/198 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 132 event pairs, 0 based on Foata normal form. 0/172 useless extension candidates. Maximal degree in co-relation 165. Up to 3 conditions per place. [2022-12-13 17:05:52,794 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 285 transitions, 677 flow [2022-12-13 17:05:52,798 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 177 transitions, 405 flow [2022-12-13 17:05:52,801 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 17:05:52,808 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 177 transitions, 405 flow [2022-12-13 17:05:52,810 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 177 transitions, 405 flow [2022-12-13 17:05:52,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 177 transitions, 405 flow [2022-12-13 17:05:52,836 INFO L130 PetriNetUnfolder]: 5/177 cut-off events. [2022-12-13 17:05:52,837 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-12-13 17:05:52,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 177 events. 5/177 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 111 event pairs, 0 based on Foata normal form. 0/154 useless extension candidates. Maximal degree in co-relation 162. Up to 3 conditions per place. [2022-12-13 17:05:52,840 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2022-12-13 17:05:55,206 INFO L134 LiptonReduction]: Checked pairs total: 20737 [2022-12-13 17:05:55,206 INFO L136 LiptonReduction]: Total number of compositions: 103 [2022-12-13 17:05:55,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:05:55,225 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;@49c826d6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:05:55,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-12-13 17:05:55,228 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 17:05:55,228 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 17:05:55,228 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:05:55,229 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 17:05:55,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:05:55,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:05:55,234 INFO L85 PathProgramCache]: Analyzing trace with hash 670393864, now seen corresponding path program 1 times [2022-12-13 17:05:55,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:05:55,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824634872] [2022-12-13 17:05:55,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:05:55,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:05:55,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:05:55,384 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 17:05:55,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:05:55,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824634872] [2022-12-13 17:05:55,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824634872] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:05:55,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:05:55,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:05:55,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531145633] [2022-12-13 17:05:55,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:05:55,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:05:55,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:05:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:05:55,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:05:55,409 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 390 [2022-12-13 17:05:55,410 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 88 transitions, 227 flow. Second operand has 2 states, 2 states have (on average 244.5) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 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 17:05:55,410 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:05:55,411 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 390 [2022-12-13 17:05:55,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:05:55,558 INFO L130 PetriNetUnfolder]: 317/923 cut-off events. [2022-12-13 17:05:55,558 INFO L131 PetriNetUnfolder]: For 109/111 co-relation queries the response was YES. [2022-12-13 17:05:55,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1549 conditions, 923 events. 317/923 cut-off events. For 109/111 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 4558 event pairs, 285 based on Foata normal form. 1/829 useless extension candidates. Maximal degree in co-relation 1532. Up to 488 conditions per place. [2022-12-13 17:05:55,565 INFO L137 encePairwiseOnDemand]: 377/390 looper letters, 31 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2022-12-13 17:05:55,565 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 265 flow [2022-12-13 17:05:55,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:05:55,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 17:05:55,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 529 transitions. [2022-12-13 17:05:55,575 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6782051282051282 [2022-12-13 17:05:55,576 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 529 transitions. [2022-12-13 17:05:55,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 529 transitions. [2022-12-13 17:05:55,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:05:55,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 529 transitions. [2022-12-13 17:05:55,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 264.5) internal successors, (529), 2 states have internal predecessors, (529), 0 states have call successors, (0), 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 17:05:55,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 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 17:05:55,585 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 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 17:05:55,587 INFO L175 Difference]: Start difference. First operand has 102 places, 88 transitions, 227 flow. Second operand 2 states and 529 transitions. [2022-12-13 17:05:55,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 265 flow [2022-12-13 17:05:55,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 231 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-12-13 17:05:55,592 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2022-12-13 17:05:55,593 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=167, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=164, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2022-12-13 17:05:55,596 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, -24 predicate places. [2022-12-13 17:05:55,596 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2022-12-13 17:05:55,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 244.5) internal successors, (489), 2 states have internal predecessors, (489), 0 states have call successors, (0), 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 17:05:55,596 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:05:55,596 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:05:55,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:05:55,597 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:05:55,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:05:55,597 INFO L85 PathProgramCache]: Analyzing trace with hash -861277590, now seen corresponding path program 1 times [2022-12-13 17:05:55,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:05:55,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7574108] [2022-12-13 17:05:55,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:05:55,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:05:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:05:55,886 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 17:05:55,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:05:55,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7574108] [2022-12-13 17:05:55,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7574108] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:05:55,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:05:55,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:05:55,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474936093] [2022-12-13 17:05:55,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:05:55,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:05:55,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:05:55,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:05:55,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:05:56,336 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 390 [2022-12-13 17:05:56,339 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 164 flow. Second operand has 6 states, 6 states have (on average 234.33333333333334) internal successors, (1406), 6 states have internal predecessors, (1406), 0 states have call successors, (0), 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 17:05:56,339 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:05:56,339 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 390 [2022-12-13 17:05:56,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:05:56,972 INFO L130 PetriNetUnfolder]: 2227/4872 cut-off events. [2022-12-13 17:05:56,972 INFO L131 PetriNetUnfolder]: For 202/208 co-relation queries the response was YES. [2022-12-13 17:05:56,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8278 conditions, 4872 events. 2227/4872 cut-off events. For 202/208 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 33736 event pairs, 890 based on Foata normal form. 1/4352 useless extension candidates. Maximal degree in co-relation 8275. Up to 2312 conditions per place. [2022-12-13 17:05:57,002 INFO L137 encePairwiseOnDemand]: 380/390 looper letters, 120 selfloop transitions, 21 changer transitions 12/190 dead transitions. [2022-12-13 17:05:57,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 190 transitions, 762 flow [2022-12-13 17:05:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:05:57,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:05:57,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1552 transitions. [2022-12-13 17:05:57,006 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6632478632478632 [2022-12-13 17:05:57,006 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1552 transitions. [2022-12-13 17:05:57,006 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1552 transitions. [2022-12-13 17:05:57,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:05:57,007 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1552 transitions. [2022-12-13 17:05:57,009 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 258.6666666666667) internal successors, (1552), 6 states have internal predecessors, (1552), 0 states have call successors, (0), 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 17:05:57,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:05:57,013 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:05:57,013 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 6 states and 1552 transitions. [2022-12-13 17:05:57,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 190 transitions, 762 flow [2022-12-13 17:05:57,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 190 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:05:57,015 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 306 flow [2022-12-13 17:05:57,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=306, PETRI_PLACES=87, PETRI_TRANSITIONS=94} [2022-12-13 17:05:57,016 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, -15 predicate places. [2022-12-13 17:05:57,016 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 306 flow [2022-12-13 17:05:57,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 234.33333333333334) internal successors, (1406), 6 states have internal predecessors, (1406), 0 states have call successors, (0), 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 17:05:57,017 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:05:57,017 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:05:57,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:05:57,017 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:05:57,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:05:57,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1029229839, now seen corresponding path program 1 times [2022-12-13 17:05:57,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:05:57,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236027539] [2022-12-13 17:05:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:05:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:05:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:05:57,204 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 17:05:57,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:05:57,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236027539] [2022-12-13 17:05:57,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236027539] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:05:57,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:05:57,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:05:57,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083007352] [2022-12-13 17:05:57,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:05:57,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:05:57,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:05:57,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:05:57,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:05:57,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 390 [2022-12-13 17:05:57,610 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 306 flow. Second operand has 6 states, 6 states have (on average 235.5) internal successors, (1413), 6 states have internal predecessors, (1413), 0 states have call successors, (0), 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 17:05:57,611 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:05:57,611 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 390 [2022-12-13 17:05:57,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:05:57,918 INFO L130 PetriNetUnfolder]: 1593/2722 cut-off events. [2022-12-13 17:05:57,918 INFO L131 PetriNetUnfolder]: For 1786/2409 co-relation queries the response was YES. [2022-12-13 17:05:57,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7474 conditions, 2722 events. 1593/2722 cut-off events. For 1786/2409 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13688 event pairs, 288 based on Foata normal form. 2/2488 useless extension candidates. Maximal degree in co-relation 7466. Up to 1837 conditions per place. [2022-12-13 17:05:57,932 INFO L137 encePairwiseOnDemand]: 381/390 looper letters, 62 selfloop transitions, 24 changer transitions 0/128 dead transitions. [2022-12-13 17:05:57,932 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 128 transitions, 621 flow [2022-12-13 17:05:57,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:05:57,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:05:57,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1459 transitions. [2022-12-13 17:05:57,935 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6235042735042735 [2022-12-13 17:05:57,935 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1459 transitions. [2022-12-13 17:05:57,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1459 transitions. [2022-12-13 17:05:57,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:05:57,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1459 transitions. [2022-12-13 17:05:57,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.16666666666666) internal successors, (1459), 6 states have internal predecessors, (1459), 0 states have call successors, (0), 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 17:05:57,940 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:05:57,941 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:05:57,941 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 306 flow. Second operand 6 states and 1459 transitions. [2022-12-13 17:05:57,941 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 128 transitions, 621 flow [2022-12-13 17:05:57,948 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 128 transitions, 621 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 17:05:57,949 INFO L231 Difference]: Finished difference. Result has 92 places, 113 transitions, 525 flow [2022-12-13 17:05:57,949 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=525, PETRI_PLACES=92, PETRI_TRANSITIONS=113} [2022-12-13 17:05:57,950 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, -10 predicate places. [2022-12-13 17:05:57,950 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 113 transitions, 525 flow [2022-12-13 17:05:57,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 235.5) internal successors, (1413), 6 states have internal predecessors, (1413), 0 states have call successors, (0), 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 17:05:57,950 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:05:57,950 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:05:57,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 17:05:57,951 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:05:57,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:05:57,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1701089410, now seen corresponding path program 1 times [2022-12-13 17:05:57,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:05:57,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209245802] [2022-12-13 17:05:57,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:05:57,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:05:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:05:58,511 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 17:05:58,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:05:58,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209245802] [2022-12-13 17:05:58,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209245802] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:05:58,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:05:58,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-13 17:05:58,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669302204] [2022-12-13 17:05:58,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:05:58,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-13 17:05:58,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:05:58,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-13 17:05:58,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-12-13 17:05:59,855 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 390 [2022-12-13 17:05:59,857 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 113 transitions, 525 flow. Second operand has 11 states, 11 states have (on average 219.54545454545453) internal successors, (2415), 11 states have internal predecessors, (2415), 0 states have call successors, (0), 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 17:05:59,857 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:05:59,857 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 390 [2022-12-13 17:05:59,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:01,135 INFO L130 PetriNetUnfolder]: 3044/6615 cut-off events. [2022-12-13 17:06:01,135 INFO L131 PetriNetUnfolder]: For 6294/6313 co-relation queries the response was YES. [2022-12-13 17:06:01,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17998 conditions, 6615 events. 3044/6615 cut-off events. For 6294/6313 co-relation queries the response was YES. Maximal size of possible extension queue 226. Compared 48758 event pairs, 1008 based on Foata normal form. 138/6058 useless extension candidates. Maximal degree in co-relation 17988. Up to 2298 conditions per place. [2022-12-13 17:06:01,174 INFO L137 encePairwiseOnDemand]: 376/390 looper letters, 191 selfloop transitions, 42 changer transitions 27/296 dead transitions. [2022-12-13 17:06:01,175 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 296 transitions, 1700 flow [2022-12-13 17:06:01,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 17:06:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 17:06:01,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2837 transitions. [2022-12-13 17:06:01,179 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6061965811965812 [2022-12-13 17:06:01,179 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2837 transitions. [2022-12-13 17:06:01,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2837 transitions. [2022-12-13 17:06:01,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:01,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2837 transitions. [2022-12-13 17:06:01,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 236.41666666666666) internal successors, (2837), 12 states have internal predecessors, (2837), 0 states have call successors, (0), 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 17:06:01,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 390.0) internal successors, (5070), 13 states have internal predecessors, (5070), 0 states have call successors, (0), 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 17:06:01,190 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 390.0) internal successors, (5070), 13 states have internal predecessors, (5070), 0 states have call successors, (0), 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 17:06:01,190 INFO L175 Difference]: Start difference. First operand has 92 places, 113 transitions, 525 flow. Second operand 12 states and 2837 transitions. [2022-12-13 17:06:01,191 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 296 transitions, 1700 flow [2022-12-13 17:06:01,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 296 transitions, 1651 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 17:06:01,203 INFO L231 Difference]: Finished difference. Result has 106 places, 125 transitions, 746 flow [2022-12-13 17:06:01,203 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=498, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=746, PETRI_PLACES=106, PETRI_TRANSITIONS=125} [2022-12-13 17:06:01,203 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2022-12-13 17:06:01,204 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 125 transitions, 746 flow [2022-12-13 17:06:01,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 219.54545454545453) internal successors, (2415), 11 states have internal predecessors, (2415), 0 states have call successors, (0), 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 17:06:01,204 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:01,204 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:01,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 17:06:01,205 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:01,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:01,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1768492026, now seen corresponding path program 2 times [2022-12-13 17:06:01,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:01,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641023887] [2022-12-13 17:06:01,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:01,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:01,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:01,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:06:01,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:01,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641023887] [2022-12-13 17:06:01,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641023887] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:01,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:01,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-13 17:06:01,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518235386] [2022-12-13 17:06:01,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:01,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:06:01,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:01,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:06:01,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:06:02,160 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 390 [2022-12-13 17:06:02,162 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 125 transitions, 746 flow. Second operand has 9 states, 9 states have (on average 232.77777777777777) internal successors, (2095), 9 states have internal predecessors, (2095), 0 states have call successors, (0), 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 17:06:02,162 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:02,162 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 390 [2022-12-13 17:06:02,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:02,904 INFO L130 PetriNetUnfolder]: 2871/5583 cut-off events. [2022-12-13 17:06:02,904 INFO L131 PetriNetUnfolder]: For 9619/9795 co-relation queries the response was YES. [2022-12-13 17:06:02,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18256 conditions, 5583 events. 2871/5583 cut-off events. For 9619/9795 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 35265 event pairs, 659 based on Foata normal form. 69/5058 useless extension candidates. Maximal degree in co-relation 18240. Up to 2294 conditions per place. [2022-12-13 17:06:02,925 INFO L137 encePairwiseOnDemand]: 384/390 looper letters, 175 selfloop transitions, 8 changer transitions 16/234 dead transitions. [2022-12-13 17:06:02,925 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 234 transitions, 1510 flow [2022-12-13 17:06:02,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 17:06:02,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 17:06:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1766 transitions. [2022-12-13 17:06:02,927 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6468864468864469 [2022-12-13 17:06:02,927 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1766 transitions. [2022-12-13 17:06:02,927 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1766 transitions. [2022-12-13 17:06:02,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:02,928 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1766 transitions. [2022-12-13 17:06:02,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 252.28571428571428) internal successors, (1766), 7 states have internal predecessors, (1766), 0 states have call successors, (0), 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 17:06:02,932 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 390.0) internal successors, (3120), 8 states have internal predecessors, (3120), 0 states have call successors, (0), 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 17:06:02,933 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 390.0) internal successors, (3120), 8 states have internal predecessors, (3120), 0 states have call successors, (0), 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 17:06:02,933 INFO L175 Difference]: Start difference. First operand has 106 places, 125 transitions, 746 flow. Second operand 7 states and 1766 transitions. [2022-12-13 17:06:02,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 234 transitions, 1510 flow [2022-12-13 17:06:02,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 234 transitions, 1451 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-12-13 17:06:02,967 INFO L231 Difference]: Finished difference. Result has 102 places, 120 transitions, 684 flow [2022-12-13 17:06:02,968 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=684, PETRI_PLACES=102, PETRI_TRANSITIONS=120} [2022-12-13 17:06:02,968 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-12-13 17:06:02,968 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 120 transitions, 684 flow [2022-12-13 17:06:02,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 232.77777777777777) internal successors, (2095), 9 states have internal predecessors, (2095), 0 states have call successors, (0), 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 17:06:02,969 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:02,969 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:02,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 17:06:02,969 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:02,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:02,969 INFO L85 PathProgramCache]: Analyzing trace with hash 760675845, now seen corresponding path program 1 times [2022-12-13 17:06:02,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:02,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808356176] [2022-12-13 17:06:02,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:02,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:03,215 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 17:06:03,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:03,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808356176] [2022-12-13 17:06:03,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808356176] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:03,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:03,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:06:03,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648445449] [2022-12-13 17:06:03,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:03,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:06:03,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:03,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:06:03,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:06:03,564 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 390 [2022-12-13 17:06:03,566 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 120 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 237.5) internal successors, (1425), 6 states have internal predecessors, (1425), 0 states have call successors, (0), 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 17:06:03,566 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:03,566 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 390 [2022-12-13 17:06:03,566 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:04,938 INFO L130 PetriNetUnfolder]: 8780/14419 cut-off events. [2022-12-13 17:06:04,938 INFO L131 PetriNetUnfolder]: For 46614/47629 co-relation queries the response was YES. [2022-12-13 17:06:04,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51343 conditions, 14419 events. 8780/14419 cut-off events. For 46614/47629 co-relation queries the response was YES. Maximal size of possible extension queue 625. Compared 93086 event pairs, 1246 based on Foata normal form. 257/13408 useless extension candidates. Maximal degree in co-relation 51330. Up to 9724 conditions per place. [2022-12-13 17:06:05,027 INFO L137 encePairwiseOnDemand]: 380/390 looper letters, 90 selfloop transitions, 197 changer transitions 0/326 dead transitions. [2022-12-13 17:06:05,027 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 326 transitions, 3084 flow [2022-12-13 17:06:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:06:05,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:06:05,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1469 transitions. [2022-12-13 17:06:05,030 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6277777777777778 [2022-12-13 17:06:05,031 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1469 transitions. [2022-12-13 17:06:05,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1469 transitions. [2022-12-13 17:06:05,031 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:05,031 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1469 transitions. [2022-12-13 17:06:05,034 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 244.83333333333334) internal successors, (1469), 6 states have internal predecessors, (1469), 0 states have call successors, (0), 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 17:06:05,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:06:05,037 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:06:05,037 INFO L175 Difference]: Start difference. First operand has 102 places, 120 transitions, 684 flow. Second operand 6 states and 1469 transitions. [2022-12-13 17:06:05,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 326 transitions, 3084 flow [2022-12-13 17:06:05,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 326 transitions, 3067 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-12-13 17:06:05,069 INFO L231 Difference]: Finished difference. Result has 103 places, 316 transitions, 3361 flow [2022-12-13 17:06:05,069 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3361, PETRI_PLACES=103, PETRI_TRANSITIONS=316} [2022-12-13 17:06:05,069 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 1 predicate places. [2022-12-13 17:06:05,069 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 316 transitions, 3361 flow [2022-12-13 17:06:05,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.5) internal successors, (1425), 6 states have internal predecessors, (1425), 0 states have call successors, (0), 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 17:06:05,070 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:05,070 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:05,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 17:06:05,071 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:05,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:05,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1988478853, now seen corresponding path program 1 times [2022-12-13 17:06:05,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:05,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910284745] [2022-12-13 17:06:05,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:05,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:05,342 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 17:06:05,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:05,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910284745] [2022-12-13 17:06:05,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910284745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:05,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:05,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:06:05,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845409478] [2022-12-13 17:06:05,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:05,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:06:05,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:05,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:06:05,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:06:05,958 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 390 [2022-12-13 17:06:05,959 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 316 transitions, 3361 flow. Second operand has 9 states, 9 states have (on average 234.44444444444446) internal successors, (2110), 9 states have internal predecessors, (2110), 0 states have call successors, (0), 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 17:06:05,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:05,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 390 [2022-12-13 17:06:05,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:07,594 INFO L130 PetriNetUnfolder]: 8240/14065 cut-off events. [2022-12-13 17:06:07,594 INFO L131 PetriNetUnfolder]: For 71778/73222 co-relation queries the response was YES. [2022-12-13 17:06:07,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61155 conditions, 14065 events. 8240/14065 cut-off events. For 71778/73222 co-relation queries the response was YES. Maximal size of possible extension queue 585. Compared 94594 event pairs, 682 based on Foata normal form. 889/13961 useless extension candidates. Maximal degree in co-relation 61138. Up to 7611 conditions per place. [2022-12-13 17:06:07,683 INFO L137 encePairwiseOnDemand]: 383/390 looper letters, 367 selfloop transitions, 12 changer transitions 0/418 dead transitions. [2022-12-13 17:06:07,683 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 418 transitions, 5217 flow [2022-12-13 17:06:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:06:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:06:07,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1913 transitions. [2022-12-13 17:06:07,686 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6131410256410257 [2022-12-13 17:06:07,686 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1913 transitions. [2022-12-13 17:06:07,686 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1913 transitions. [2022-12-13 17:06:07,687 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:07,687 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1913 transitions. [2022-12-13 17:06:07,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 239.125) internal successors, (1913), 8 states have internal predecessors, (1913), 0 states have call successors, (0), 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 17:06:07,693 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 390.0) internal successors, (3510), 9 states have internal predecessors, (3510), 0 states have call successors, (0), 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 17:06:07,694 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 390.0) internal successors, (3510), 9 states have internal predecessors, (3510), 0 states have call successors, (0), 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 17:06:07,694 INFO L175 Difference]: Start difference. First operand has 103 places, 316 transitions, 3361 flow. Second operand 8 states and 1913 transitions. [2022-12-13 17:06:07,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 418 transitions, 5217 flow [2022-12-13 17:06:07,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 418 transitions, 5167 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 17:06:07,776 INFO L231 Difference]: Finished difference. Result has 108 places, 315 transitions, 3331 flow [2022-12-13 17:06:07,777 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=3307, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=303, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3331, PETRI_PLACES=108, PETRI_TRANSITIONS=315} [2022-12-13 17:06:07,777 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 6 predicate places. [2022-12-13 17:06:07,777 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 315 transitions, 3331 flow [2022-12-13 17:06:07,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 234.44444444444446) internal successors, (2110), 9 states have internal predecessors, (2110), 0 states have call successors, (0), 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 17:06:07,778 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:07,778 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:07,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 17:06:07,779 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:07,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:07,779 INFO L85 PathProgramCache]: Analyzing trace with hash -394624200, now seen corresponding path program 1 times [2022-12-13 17:06:07,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:07,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070800400] [2022-12-13 17:06:07,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:07,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:07,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:08,043 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 17:06:08,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:08,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070800400] [2022-12-13 17:06:08,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070800400] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:08,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:08,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:06:08,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065041639] [2022-12-13 17:06:08,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:08,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:06:08,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:08,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:06:08,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:06:08,439 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 390 [2022-12-13 17:06:08,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 315 transitions, 3331 flow. Second operand has 6 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 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 17:06:08,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:08,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 390 [2022-12-13 17:06:08,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:10,251 INFO L130 PetriNetUnfolder]: 11360/18014 cut-off events. [2022-12-13 17:06:10,251 INFO L131 PetriNetUnfolder]: For 118751/120402 co-relation queries the response was YES. [2022-12-13 17:06:10,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79629 conditions, 18014 events. 11360/18014 cut-off events. For 118751/120402 co-relation queries the response was YES. Maximal size of possible extension queue 578. Compared 113287 event pairs, 1489 based on Foata normal form. 418/17238 useless extension candidates. Maximal degree in co-relation 79612. Up to 12158 conditions per place. [2022-12-13 17:06:10,386 INFO L137 encePairwiseOnDemand]: 381/390 looper letters, 280 selfloop transitions, 149 changer transitions 0/471 dead transitions. [2022-12-13 17:06:10,386 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 471 transitions, 5921 flow [2022-12-13 17:06:10,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:06:10,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:06:10,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2022-12-13 17:06:10,389 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6252136752136752 [2022-12-13 17:06:10,389 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2022-12-13 17:06:10,389 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2022-12-13 17:06:10,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:10,390 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2022-12-13 17:06:10,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 243.83333333333334) internal successors, (1463), 6 states have internal predecessors, (1463), 0 states have call successors, (0), 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 17:06:10,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:06:10,395 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:06:10,395 INFO L175 Difference]: Start difference. First operand has 108 places, 315 transitions, 3331 flow. Second operand 6 states and 1463 transitions. [2022-12-13 17:06:10,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 471 transitions, 5921 flow [2022-12-13 17:06:10,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 471 transitions, 5899 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 17:06:10,451 INFO L231 Difference]: Finished difference. Result has 112 places, 463 transitions, 5699 flow [2022-12-13 17:06:10,451 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=3309, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5699, PETRI_PLACES=112, PETRI_TRANSITIONS=463} [2022-12-13 17:06:10,452 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2022-12-13 17:06:10,452 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 463 transitions, 5699 flow [2022-12-13 17:06:10,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 237.83333333333334) internal successors, (1427), 6 states have internal predecessors, (1427), 0 states have call successors, (0), 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 17:06:10,452 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:10,452 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:10,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 17:06:10,452 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:10,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:10,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1838293819, now seen corresponding path program 1 times [2022-12-13 17:06:10,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:10,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139154044] [2022-12-13 17:06:10,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:10,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:10,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:10,826 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 17:06:10,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:10,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139154044] [2022-12-13 17:06:10,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139154044] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:10,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:10,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:06:10,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553924548] [2022-12-13 17:06:10,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:10,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:06:10,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:10,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:06:10,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:06:11,518 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 390 [2022-12-13 17:06:11,521 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 463 transitions, 5699 flow. Second operand has 9 states, 9 states have (on average 234.66666666666666) internal successors, (2112), 9 states have internal predecessors, (2112), 0 states have call successors, (0), 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 17:06:11,521 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:11,521 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 390 [2022-12-13 17:06:11,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:13,897 INFO L130 PetriNetUnfolder]: 11151/17894 cut-off events. [2022-12-13 17:06:13,897 INFO L131 PetriNetUnfolder]: For 149401/150997 co-relation queries the response was YES. [2022-12-13 17:06:13,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89173 conditions, 17894 events. 11151/17894 cut-off events. For 149401/150997 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 113995 event pairs, 1043 based on Foata normal form. 505/17325 useless extension candidates. Maximal degree in co-relation 89152. Up to 10516 conditions per place. [2022-12-13 17:06:14,012 INFO L137 encePairwiseOnDemand]: 383/390 looper letters, 487 selfloop transitions, 12 changer transitions 0/541 dead transitions. [2022-12-13 17:06:14,012 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 541 transitions, 7667 flow [2022-12-13 17:06:14,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:06:14,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:06:14,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1909 transitions. [2022-12-13 17:06:14,015 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6118589743589744 [2022-12-13 17:06:14,015 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1909 transitions. [2022-12-13 17:06:14,015 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1909 transitions. [2022-12-13 17:06:14,016 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:14,016 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1909 transitions. [2022-12-13 17:06:14,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 238.625) internal successors, (1909), 8 states have internal predecessors, (1909), 0 states have call successors, (0), 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 17:06:14,019 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 390.0) internal successors, (3510), 9 states have internal predecessors, (3510), 0 states have call successors, (0), 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 17:06:14,020 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 390.0) internal successors, (3510), 9 states have internal predecessors, (3510), 0 states have call successors, (0), 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 17:06:14,020 INFO L175 Difference]: Start difference. First operand has 112 places, 463 transitions, 5699 flow. Second operand 8 states and 1909 transitions. [2022-12-13 17:06:14,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 541 transitions, 7667 flow [2022-12-13 17:06:14,128 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 541 transitions, 7341 flow, removed 144 selfloop flow, removed 1 redundant places. [2022-12-13 17:06:14,133 INFO L231 Difference]: Finished difference. Result has 117 places, 462 transitions, 5393 flow [2022-12-13 17:06:14,133 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=5369, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=450, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5393, PETRI_PLACES=117, PETRI_TRANSITIONS=462} [2022-12-13 17:06:14,133 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 15 predicate places. [2022-12-13 17:06:14,134 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 462 transitions, 5393 flow [2022-12-13 17:06:14,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 234.66666666666666) internal successors, (2112), 9 states have internal predecessors, (2112), 0 states have call successors, (0), 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 17:06:14,134 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:14,134 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:14,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 17:06:14,134 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:14,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:14,134 INFO L85 PathProgramCache]: Analyzing trace with hash 134824860, now seen corresponding path program 1 times [2022-12-13 17:06:14,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:14,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361107787] [2022-12-13 17:06:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:14,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:14,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:14,379 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 17:06:14,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:14,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361107787] [2022-12-13 17:06:14,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361107787] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:14,380 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:14,380 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:06:14,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003278422] [2022-12-13 17:06:14,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:14,381 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:06:14,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:14,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:06:14,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:06:14,701 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 390 [2022-12-13 17:06:14,702 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 462 transitions, 5393 flow. Second operand has 6 states, 6 states have (on average 238.16666666666666) internal successors, (1429), 6 states have internal predecessors, (1429), 0 states have call successors, (0), 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 17:06:14,702 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:14,702 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 390 [2022-12-13 17:06:14,702 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:16,893 INFO L130 PetriNetUnfolder]: 12455/19550 cut-off events. [2022-12-13 17:06:16,893 INFO L131 PetriNetUnfolder]: For 168455/170314 co-relation queries the response was YES. [2022-12-13 17:06:16,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94929 conditions, 19550 events. 12455/19550 cut-off events. For 168455/170314 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 121673 event pairs, 1515 based on Foata normal form. 464/18929 useless extension candidates. Maximal degree in co-relation 94908. Up to 13239 conditions per place. [2022-12-13 17:06:17,016 INFO L137 encePairwiseOnDemand]: 382/390 looper letters, 422 selfloop transitions, 149 changer transitions 0/616 dead transitions. [2022-12-13 17:06:17,017 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 616 transitions, 8429 flow [2022-12-13 17:06:17,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:06:17,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:06:17,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1457 transitions. [2022-12-13 17:06:17,019 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6226495726495727 [2022-12-13 17:06:17,019 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1457 transitions. [2022-12-13 17:06:17,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1457 transitions. [2022-12-13 17:06:17,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:17,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1457 transitions. [2022-12-13 17:06:17,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 242.83333333333334) internal successors, (1457), 6 states have internal predecessors, (1457), 0 states have call successors, (0), 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 17:06:17,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:06:17,023 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:06:17,023 INFO L175 Difference]: Start difference. First operand has 117 places, 462 transitions, 5393 flow. Second operand 6 states and 1457 transitions. [2022-12-13 17:06:17,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 616 transitions, 8429 flow [2022-12-13 17:06:17,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 616 transitions, 8407 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 17:06:17,122 INFO L231 Difference]: Finished difference. Result has 121 places, 610 transitions, 7929 flow [2022-12-13 17:06:17,122 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=5371, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=462, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=421, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7929, PETRI_PLACES=121, PETRI_TRANSITIONS=610} [2022-12-13 17:06:17,122 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 19 predicate places. [2022-12-13 17:06:17,122 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 610 transitions, 7929 flow [2022-12-13 17:06:17,123 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 238.16666666666666) internal successors, (1429), 6 states have internal predecessors, (1429), 0 states have call successors, (0), 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 17:06:17,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:17,123 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:17,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 17:06:17,123 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:17,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:17,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1670925218, now seen corresponding path program 1 times [2022-12-13 17:06:17,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:17,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104230724] [2022-12-13 17:06:17,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:17,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:17,429 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 17:06:17,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:17,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104230724] [2022-12-13 17:06:17,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104230724] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:17,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:17,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:06:17,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503930254] [2022-12-13 17:06:17,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:17,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:06:17,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:17,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:06:17,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:06:18,188 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 390 [2022-12-13 17:06:18,189 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 610 transitions, 7929 flow. Second operand has 9 states, 9 states have (on average 234.88888888888889) internal successors, (2114), 9 states have internal predecessors, (2114), 0 states have call successors, (0), 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 17:06:18,189 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:18,189 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 390 [2022-12-13 17:06:18,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:20,856 INFO L130 PetriNetUnfolder]: 12222/19289 cut-off events. [2022-12-13 17:06:20,856 INFO L131 PetriNetUnfolder]: For 188322/190190 co-relation queries the response was YES. [2022-12-13 17:06:20,910 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99468 conditions, 19289 events. 12222/19289 cut-off events. For 188322/190190 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 120757 event pairs, 1241 based on Foata normal form. 505/18748 useless extension candidates. Maximal degree in co-relation 99443. Up to 11557 conditions per place. [2022-12-13 17:06:20,980 INFO L137 encePairwiseOnDemand]: 383/390 looper letters, 607 selfloop transitions, 12 changer transitions 0/664 dead transitions. [2022-12-13 17:06:20,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 664 transitions, 9913 flow [2022-12-13 17:06:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:06:20,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:06:20,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1905 transitions. [2022-12-13 17:06:20,983 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6105769230769231 [2022-12-13 17:06:20,983 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1905 transitions. [2022-12-13 17:06:20,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1905 transitions. [2022-12-13 17:06:20,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:20,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1905 transitions. [2022-12-13 17:06:20,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 238.125) internal successors, (1905), 8 states have internal predecessors, (1905), 0 states have call successors, (0), 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 17:06:20,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 390.0) internal successors, (3510), 9 states have internal predecessors, (3510), 0 states have call successors, (0), 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 17:06:20,987 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 390.0) internal successors, (3510), 9 states have internal predecessors, (3510), 0 states have call successors, (0), 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 17:06:20,987 INFO L175 Difference]: Start difference. First operand has 121 places, 610 transitions, 7929 flow. Second operand 8 states and 1905 transitions. [2022-12-13 17:06:20,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 664 transitions, 9913 flow [2022-12-13 17:06:21,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 664 transitions, 9779 flow, removed 48 selfloop flow, removed 1 redundant places. [2022-12-13 17:06:21,138 INFO L231 Difference]: Finished difference. Result has 126 places, 609 transitions, 7815 flow [2022-12-13 17:06:21,138 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=7791, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=597, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=7815, PETRI_PLACES=126, PETRI_TRANSITIONS=609} [2022-12-13 17:06:21,138 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 24 predicate places. [2022-12-13 17:06:21,139 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 609 transitions, 7815 flow [2022-12-13 17:06:21,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 234.88888888888889) internal successors, (2114), 9 states have internal predecessors, (2114), 0 states have call successors, (0), 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 17:06:21,139 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:21,139 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:21,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 17:06:21,139 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:21,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:21,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1510423777, now seen corresponding path program 1 times [2022-12-13 17:06:21,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:21,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177148040] [2022-12-13 17:06:21,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:21,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:21,378 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 17:06:21,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:21,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177148040] [2022-12-13 17:06:21,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177148040] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:21,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:21,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 17:06:21,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116350273] [2022-12-13 17:06:21,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:21,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 17:06:21,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:21,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 17:06:21,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 17:06:21,834 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 390 [2022-12-13 17:06:21,835 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 609 transitions, 7815 flow. Second operand has 6 states, 6 states have (on average 238.5) internal successors, (1431), 6 states have internal predecessors, (1431), 0 states have call successors, (0), 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 17:06:21,835 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:21,835 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 390 [2022-12-13 17:06:21,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:24,314 INFO L130 PetriNetUnfolder]: 12487/19559 cut-off events. [2022-12-13 17:06:24,314 INFO L131 PetriNetUnfolder]: For 202453/204407 co-relation queries the response was YES. [2022-12-13 17:06:24,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100856 conditions, 19559 events. 12487/19559 cut-off events. For 202453/204407 co-relation queries the response was YES. Maximal size of possible extension queue 584. Compared 121258 event pairs, 1475 based on Foata normal form. 481/19052 useless extension candidates. Maximal degree in co-relation 100831. Up to 13351 conditions per place. [2022-12-13 17:06:24,394 INFO L137 encePairwiseOnDemand]: 383/390 looper letters, 417 selfloop transitions, 101 changer transitions 147/713 dead transitions. [2022-12-13 17:06:24,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 713 transitions, 10633 flow [2022-12-13 17:06:24,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 17:06:24,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 17:06:24,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1451 transitions. [2022-12-13 17:06:24,396 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6200854700854701 [2022-12-13 17:06:24,396 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1451 transitions. [2022-12-13 17:06:24,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1451 transitions. [2022-12-13 17:06:24,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:24,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1451 transitions. [2022-12-13 17:06:24,398 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.83333333333334) internal successors, (1451), 6 states have internal predecessors, (1451), 0 states have call successors, (0), 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 17:06:24,399 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:06:24,399 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 390.0) internal successors, (2730), 7 states have internal predecessors, (2730), 0 states have call successors, (0), 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 17:06:24,399 INFO L175 Difference]: Start difference. First operand has 126 places, 609 transitions, 7815 flow. Second operand 6 states and 1451 transitions. [2022-12-13 17:06:24,400 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 713 transitions, 10633 flow [2022-12-13 17:06:24,535 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 713 transitions, 10611 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-12-13 17:06:24,543 INFO L231 Difference]: Finished difference. Result has 130 places, 562 transitions, 7480 flow [2022-12-13 17:06:24,543 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=7793, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=580, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7480, PETRI_PLACES=130, PETRI_TRANSITIONS=562} [2022-12-13 17:06:24,544 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 28 predicate places. [2022-12-13 17:06:24,544 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 562 transitions, 7480 flow [2022-12-13 17:06:24,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 238.5) internal successors, (1431), 6 states have internal predecessors, (1431), 0 states have call successors, (0), 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 17:06:24,544 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 17:06:24,544 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:24,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-13 17:06:24,545 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-12-13 17:06:24,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:24,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2091513947, now seen corresponding path program 1 times [2022-12-13 17:06:24,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:24,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173175057] [2022-12-13 17:06:24,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:24,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:24,855 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 17:06:24,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:24,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173175057] [2022-12-13 17:06:24,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173175057] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:24,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:24,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-13 17:06:24,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553713368] [2022-12-13 17:06:24,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:24,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-13 17:06:24,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:24,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-13 17:06:24,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-13 17:06:25,425 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 390 [2022-12-13 17:06:25,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 562 transitions, 7480 flow. Second operand has 9 states, 9 states have (on average 224.11111111111111) internal successors, (2017), 9 states have internal predecessors, (2017), 0 states have call successors, (0), 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 17:06:25,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 17:06:25,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 390 [2022-12-13 17:06:25,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 17:06:27,729 INFO L130 PetriNetUnfolder]: 10927/17839 cut-off events. [2022-12-13 17:06:27,729 INFO L131 PetriNetUnfolder]: For 175133/176443 co-relation queries the response was YES. [2022-12-13 17:06:27,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92147 conditions, 17839 events. 10927/17839 cut-off events. For 175133/176443 co-relation queries the response was YES. Maximal size of possible extension queue 518. Compared 116582 event pairs, 1226 based on Foata normal form. 345/17340 useless extension candidates. Maximal degree in co-relation 92118. Up to 11506 conditions per place. [2022-12-13 17:06:27,810 INFO L137 encePairwiseOnDemand]: 383/390 looper letters, 0 selfloop transitions, 0 changer transitions 568/568 dead transitions. [2022-12-13 17:06:27,810 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 568 transitions, 8530 flow [2022-12-13 17:06:27,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 17:06:27,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 17:06:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1813 transitions. [2022-12-13 17:06:27,813 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5810897435897436 [2022-12-13 17:06:27,813 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1813 transitions. [2022-12-13 17:06:27,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1813 transitions. [2022-12-13 17:06:27,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 17:06:27,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1813 transitions. [2022-12-13 17:06:27,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 226.625) internal successors, (1813), 8 states have internal predecessors, (1813), 0 states have call successors, (0), 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 17:06:27,818 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 390.0) internal successors, (3510), 9 states have internal predecessors, (3510), 0 states have call successors, (0), 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 17:06:27,818 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 390.0) internal successors, (3510), 9 states have internal predecessors, (3510), 0 states have call successors, (0), 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 17:06:27,818 INFO L175 Difference]: Start difference. First operand has 130 places, 562 transitions, 7480 flow. Second operand 8 states and 1813 transitions. [2022-12-13 17:06:27,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 568 transitions, 8530 flow [2022-12-13 17:06:27,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 568 transitions, 8456 flow, removed 24 selfloop flow, removed 1 redundant places. [2022-12-13 17:06:27,995 INFO L231 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2022-12-13 17:06:27,995 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=7402, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=561, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=561, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=135, PETRI_TRANSITIONS=0} [2022-12-13 17:06:27,996 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 33 predicate places. [2022-12-13 17:06:27,996 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2022-12-13 17:06:27,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 224.11111111111111) internal successors, (2017), 9 states have internal predecessors, (2017), 0 states have call successors, (0), 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 17:06:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2022-12-13 17:06:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2022-12-13 17:06:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2022-12-13 17:06:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2022-12-13 17:06:27,998 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2022-12-13 17:06:27,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2022-12-13 17:06:28,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2022-12-13 17:06:28,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2022-12-13 17:06:28,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2022-12-13 17:06:28,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2022-12-13 17:06:28,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2022-12-13 17:06:28,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2022-12-13 17:06:28,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-13 17:06:28,001 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:28,005 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 17:06:28,005 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:06:28,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:06:28 BasicIcfg [2022-12-13 17:06:28,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:06:28,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:06:28,007 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:06:28,008 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:06:28,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:05:52" (3/4) ... [2022-12-13 17:06:28,010 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 17:06:28,013 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2022-12-13 17:06:28,013 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 17:06:28,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 17:06:28,014 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-12-13 17:06:28,016 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 17:06:28,016 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 17:06:28,016 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 17:06:28,016 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 17:06:28,037 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:06:28,037 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:06:28,037 INFO L158 Benchmark]: Toolchain (without parser) took 36380.69ms. Allocated memory was 146.8MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 111.0MB in the beginning and 617.5MB in the end (delta: -506.5MB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2022-12-13 17:06:28,037 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 146.8MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:06:28,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.32ms. Allocated memory is still 146.8MB. Free memory was 111.0MB in the beginning and 77.0MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 17:06:28,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.43ms. Allocated memory is still 146.8MB. Free memory was 77.0MB in the beginning and 74.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:06:28,038 INFO L158 Benchmark]: Boogie Preprocessor took 25.35ms. Allocated memory is still 146.8MB. Free memory was 74.4MB in the beginning and 72.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:06:28,038 INFO L158 Benchmark]: RCFGBuilder took 440.17ms. Allocated memory is still 146.8MB. Free memory was 71.8MB in the beginning and 48.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-12-13 17:06:28,038 INFO L158 Benchmark]: TraceAbstraction took 35415.36ms. Allocated memory was 146.8MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 48.1MB in the beginning and 620.7MB in the end (delta: -572.6MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2022-12-13 17:06:28,039 INFO L158 Benchmark]: Witness Printer took 29.57ms. Allocated memory is still 2.2GB. Free memory was 620.7MB in the beginning and 617.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:06:28,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 146.8MB. Free memory is still 113.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.32ms. Allocated memory is still 146.8MB. Free memory was 111.0MB in the beginning and 77.0MB in the end (delta: 34.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.43ms. Allocated memory is still 146.8MB. Free memory was 77.0MB in the beginning and 74.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.35ms. Allocated memory is still 146.8MB. Free memory was 74.4MB in the beginning and 72.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.17ms. Allocated memory is still 146.8MB. Free memory was 71.8MB in the beginning and 48.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 35415.36ms. Allocated memory was 146.8MB in the beginning and 2.2GB in the end (delta: 2.1GB). Free memory was 48.1MB in the beginning and 620.7MB in the end (delta: -572.6MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 29.57ms. Allocated memory is still 2.2GB. Free memory was 620.7MB in the beginning and 617.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.4s, 191 PlacesBefore, 102 PlacesAfterwards, 177 TransitionsBefore, 88 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 5 FixpointIterations, 32 TrivialSequentialCompositions, 71 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 103 TotalNumberOfCompositions, 20737 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7449, independent: 6907, independent conditional: 0, independent unconditional: 6907, dependent: 542, dependent conditional: 0, dependent unconditional: 542, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1842, independent: 1726, independent conditional: 0, independent unconditional: 1726, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7449, independent: 5181, independent conditional: 0, independent unconditional: 5181, dependent: 426, dependent conditional: 0, dependent unconditional: 426, unknown: 1842, unknown conditional: 0, unknown unconditional: 1842] , Statistics on independence cache: Total cache size (in pairs): 307, Positive cache size: 234, Positive conditional cache size: 0, Positive unconditional cache size: 234, Negative cache size: 73, Negative conditional cache size: 0, Negative unconditional cache size: 73, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1148]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1153]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1154]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1155]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1156]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1127]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1133]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1140]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1163]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1164]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 329 locations, 40 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 35.3s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 29.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5004 SdHoareTripleChecker+Valid, 8.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3298 mSDsluCounter, 1186 SdHoareTripleChecker+Invalid, 7.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 941 mSDsCounter, 2518 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13481 IncrementalHoareTripleChecker+Invalid, 15999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2518 mSolverCounterUnsat, 245 mSDtfsCounter, 13481 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7929occurred in iteration=10, InterpolantAutomatonStates: 89, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 371 ConstructedInterpolants, 0 QuantifiedInterpolants, 2479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 13 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 17:06:28,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20206d4f-7a8a-4cbf-af3d-3e673edc527a/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE