./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 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R --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-38b53e6 [2022-11-25 16:58:22,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:58:22,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:58:22,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:58:22,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:58:22,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:58:22,086 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:58:22,087 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:58:22,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:58:22,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:58:22,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:58:22,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:58:22,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:58:22,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:58:22,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:58:22,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:58:22,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:58:22,098 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:58:22,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:58:22,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:58:22,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:58:22,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:58:22,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:58:22,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:58:22,109 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:58:22,109 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:58:22,110 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:58:22,111 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:58:22,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:58:22,112 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:58:22,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:58:22,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:58:22,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:58:22,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:58:22,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:58:22,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:58:22,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:58:22,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:58:22,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:58:22,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:58:22,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:58:22,124 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 16:58:22,163 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:58:22,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:58:22,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:58:22,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:58:22,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:58:22,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:58:22,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:58:22,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:58:22,166 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:58:22,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:58:22,168 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:58:22,168 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 16:58:22,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:58:22,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:58:22,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:58:22,169 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:58:22,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:58:22,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:58:22,169 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 16:58:22,169 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:58:22,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:58:22,170 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:58:22,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:58:22,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:58:22,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:58:22,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:58:22,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:58:22,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:58:22,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:58:22,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:58:22,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:58:22,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:58:22,172 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:58:22,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:58:22,172 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:58:22,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:58:22,172 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_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9556b3eb7217f056a72a299bf0514e64606a248fa454b59dcc03e4a2e74c7c90 [2022-11-25 16:58:22,434 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:58:22,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:58:22,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:58:22,466 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:58:22,466 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:58:22,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-11-25 16:58:25,715 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:58:26,006 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:58:26,006 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i [2022-11-25 16:58:26,024 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/data/2bf272322/d2439bf6b0ec4aa7a852a6905fdcc906/FLAG16ad733b2 [2022-11-25 16:58:26,041 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/data/2bf272322/d2439bf6b0ec4aa7a852a6905fdcc906 [2022-11-25 16:58:26,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:58:26,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:58:26,055 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:58:26,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:58:26,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:58:26,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:26,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e7f4ea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26, skipping insertion in model container [2022-11-25 16:58:26,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:26,072 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:58:26,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:58:26,373 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:58:26,750 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_f357fc1b-3448-41ff-899f-8d1b342f1f16/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-11-25 16:58:26,772 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:58:26,776 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:58:26,777 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:58:26,781 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:58:26,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:58:26,819 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:58:26,840 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 16:58:26,860 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_f357fc1b-3448-41ff-899f-8d1b342f1f16/sv-benchmarks/c/pthread/singleton_with-uninit-problems.i[55568,55581] [2022-11-25 16:58:26,862 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:58:26,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:58:26,863 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_begin [2022-11-25 16:58:26,864 WARN L623 FunctionHandler]: Unknown extern function __VERIFIER_atomic_end [2022-11-25 16:58:26,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:58:26,967 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:58:26,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26 WrapperNode [2022-11-25 16:58:26,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:58:26,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:58:26,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:58:26,969 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:58:26,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:26,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,018 INFO L138 Inliner]: procedures = 325, calls = 53, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 54 [2022-11-25 16:58:27,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:58:27,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:58:27,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:58:27,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:58:27,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,061 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:58:27,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:58:27,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:58:27,063 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:58:27,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (1/1) ... [2022-11-25 16:58:27,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:58:27,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:58:27,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:58:27,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:58:27,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-25 16:58:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:58:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:58:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-25 16:58:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 16:58:27,156 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2022-11-25 16:58:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2022-11-25 16:58:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 16:58:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 16:58:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 16:58:27,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 16:58:27,157 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 16:58:27,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 16:58:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 16:58:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 16:58:27,159 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:58:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:58:27,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:58:27,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:58:27,162 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 16:58:27,385 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:58:27,387 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:58:27,877 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:58:27,933 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:58:27,933 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 16:58:27,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:58:27 BoogieIcfgContainer [2022-11-25 16:58:27,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:58:27,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:58:27,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:58:27,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:58:27,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:58:26" (1/3) ... [2022-11-25 16:58:27,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a817ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:58:27, skipping insertion in model container [2022-11-25 16:58:27,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:58:26" (2/3) ... [2022-11-25 16:58:27,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a817ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:58:27, skipping insertion in model container [2022-11-25 16:58:27,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:58:27" (3/3) ... [2022-11-25 16:58:27,946 INFO L112 eAbstractionObserver]: Analyzing ICFG singleton_with-uninit-problems.i [2022-11-25 16:58:27,956 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 16:58:27,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:58:27,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2022-11-25 16:58:27,968 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 16:58:28,140 INFO L144 ThreadInstanceAdder]: Constructed 21 joinOtherThreadTransitions. [2022-11-25 16:58:28,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 285 transitions, 677 flow [2022-11-25 16:58:28,319 INFO L130 PetriNetUnfolder]: 7/198 cut-off events. [2022-11-25 16:58:28,319 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 16:58:28,335 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 135 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. [2022-11-25 16:58:28,335 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 285 transitions, 677 flow [2022-11-25 16:58:28,341 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 191 places, 177 transitions, 405 flow [2022-11-25 16:58:28,348 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 16:58:28,379 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 191 places, 177 transitions, 405 flow [2022-11-25 16:58:28,382 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 191 places, 177 transitions, 405 flow [2022-11-25 16:58:28,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 191 places, 177 transitions, 405 flow [2022-11-25 16:58:28,427 INFO L130 PetriNetUnfolder]: 5/177 cut-off events. [2022-11-25 16:58:28,427 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-25 16:58:28,428 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. [2022-11-25 16:58:28,432 INFO L119 LiptonReduction]: Number of co-enabled transitions 4608 [2022-11-25 16:58:40,768 INFO L134 LiptonReduction]: Checked pairs total: 21013 [2022-11-25 16:58:40,768 INFO L136 LiptonReduction]: Total number of compositions: 105 [2022-11-25 16:58:40,798 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:58:40,806 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;@6c8e4e1a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:58:40,807 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2022-11-25 16:58:40,811 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-11-25 16:58:40,816 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 16:58:40,817 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:40,817 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 16:58:40,819 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:58:40,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:40,827 INFO L85 PathProgramCache]: Analyzing trace with hash 671323142, now seen corresponding path program 1 times [2022-11-25 16:58:40,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:40,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095637244] [2022-11-25 16:58:40,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:40,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:41,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:41,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095637244] [2022-11-25 16:58:41,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095637244] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:41,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:41,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 16:58:41,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071143370] [2022-11-25 16:58:41,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:41,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 16:58:41,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:41,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 16:58:41,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 16:58:41,149 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 242 out of 392 [2022-11-25 16:58:41,152 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) [2022-11-25 16:58:41,153 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:41,153 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 242 of 392 [2022-11-25 16:58:41,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:41,403 INFO L130 PetriNetUnfolder]: 321/729 cut-off events. [2022-11-25 16:58:41,403 INFO L131 PetriNetUnfolder]: For 103/105 co-relation queries the response was YES. [2022-11-25 16:58:41,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 729 events. 321/729 cut-off events. For 103/105 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2725 event pairs, 289 based on Foata normal form. 1/653 useless extension candidates. Maximal degree in co-relation 1346. Up to 496 conditions per place. [2022-11-25 16:58:41,418 INFO L137 encePairwiseOnDemand]: 379/392 looper letters, 32 selfloop transitions, 0 changer transitions 1/75 dead transitions. [2022-11-25 16:58:41,418 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 75 transitions, 267 flow [2022-11-25 16:58:41,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 16:58:41,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 16:58:41,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 530 transitions. [2022-11-25 16:58:41,440 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6760204081632653 [2022-11-25 16:58:41,441 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 530 transitions. [2022-11-25 16:58:41,441 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 530 transitions. [2022-11-25 16:58:41,446 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:41,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 530 transitions. [2022-11-25 16:58:41,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 265.0) internal successors, (530), 2 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:41,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:41,470 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 392.0) internal successors, (1176), 3 states have internal predecessors, (1176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:41,471 INFO L175 Difference]: Start difference. First operand has 102 places, 88 transitions, 227 flow. Second operand 2 states and 530 transitions. [2022-11-25 16:58:41,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 75 transitions, 267 flow [2022-11-25 16:58:41,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 75 transitions, 233 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-11-25 16:58:41,483 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 164 flow [2022-11-25 16:58:41,486 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:58:41,490 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, -24 predicate places. [2022-11-25 16:58:41,491 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 164 flow [2022-11-25 16:58:41,496 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) [2022-11-25 16:58:41,497 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:41,497 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:41,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:58:41,497 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)] === [2022-11-25 16:58:41,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:41,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1110535170, now seen corresponding path program 1 times [2022-11-25 16:58:41,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:41,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598295353] [2022-11-25 16:58:41,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:41,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:41,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:41,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:41,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598295353] [2022-11-25 16:58:41,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598295353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:41,926 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:41,926 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:58:41,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222868294] [2022-11-25 16:58:41,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:41,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:58:41,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:58:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:58:42,592 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 392 [2022-11-25 16:58:42,595 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) [2022-11-25 16:58:42,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:42,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 392 [2022-11-25 16:58:42,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:43,737 INFO L130 PetriNetUnfolder]: 2246/4703 cut-off events. [2022-11-25 16:58:43,737 INFO L131 PetriNetUnfolder]: For 202/209 co-relation queries the response was YES. [2022-11-25 16:58:43,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8142 conditions, 4703 events. 2246/4703 cut-off events. For 202/209 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 31006 event pairs, 894 based on Foata normal form. 0/4176 useless extension candidates. Maximal degree in co-relation 8139. Up to 2320 conditions per place. [2022-11-25 16:58:43,770 INFO L137 encePairwiseOnDemand]: 382/392 looper letters, 125 selfloop transitions, 21 changer transitions 12/194 dead transitions. [2022-11-25 16:58:43,770 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 194 transitions, 780 flow [2022-11-25 16:58:43,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:58:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:58:43,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1557 transitions. [2022-11-25 16:58:43,775 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6619897959183674 [2022-11-25 16:58:43,775 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1557 transitions. [2022-11-25 16:58:43,776 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1557 transitions. [2022-11-25 16:58:43,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:43,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1557 transitions. [2022-11-25 16:58:43,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 259.5) internal successors, (1557), 6 states have internal predecessors, (1557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:43,787 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:43,789 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:43,789 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 164 flow. Second operand 6 states and 1557 transitions. [2022-11-25 16:58:43,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 194 transitions, 780 flow [2022-11-25 16:58:43,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 194 transitions, 780 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:58:43,797 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 306 flow [2022-11-25 16:58:43,797 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:58:43,798 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, -15 predicate places. [2022-11-25 16:58:43,799 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 306 flow [2022-11-25 16:58:43,800 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) [2022-11-25 16:58:43,800 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:43,801 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:58:43,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:58:43,801 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread0Err0ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:58:43,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:43,805 INFO L85 PathProgramCache]: Analyzing trace with hash 2020259474, now seen corresponding path program 1 times [2022-11-25 16:58:43,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:43,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744547785] [2022-11-25 16:58:43,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:43,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:43,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:44,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:44,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:44,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744547785] [2022-11-25 16:58:44,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744547785] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:44,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:44,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:58:44,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549044500] [2022-11-25 16:58:44,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:44,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 16:58:44,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:44,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 16:58:44,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:58:44,778 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 236 out of 392 [2022-11-25 16:58:44,780 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 306 flow. Second operand has 5 states, 5 states have (on average 237.6) internal successors, (1188), 5 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:44,780 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:44,780 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 236 of 392 [2022-11-25 16:58:44,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:45,361 INFO L130 PetriNetUnfolder]: 1589/2718 cut-off events. [2022-11-25 16:58:45,361 INFO L131 PetriNetUnfolder]: For 1800/2423 co-relation queries the response was YES. [2022-11-25 16:58:45,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7462 conditions, 2718 events. 1589/2718 cut-off events. For 1800/2423 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 13640 event pairs, 288 based on Foata normal form. 6/2488 useless extension candidates. Maximal degree in co-relation 7454. Up to 1837 conditions per place. [2022-11-25 16:58:45,390 INFO L137 encePairwiseOnDemand]: 384/392 looper letters, 60 selfloop transitions, 23 changer transitions 0/126 dead transitions. [2022-11-25 16:58:45,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 126 transitions, 611 flow [2022-11-25 16:58:45,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:58:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-25 16:58:45,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1232 transitions. [2022-11-25 16:58:45,395 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6285714285714286 [2022-11-25 16:58:45,396 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1232 transitions. [2022-11-25 16:58:45,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1232 transitions. [2022-11-25 16:58:45,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:45,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1232 transitions. [2022-11-25 16:58:45,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 246.4) internal successors, (1232), 5 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:45,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:45,407 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 392.0) internal successors, (2352), 6 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:45,408 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 306 flow. Second operand 5 states and 1232 transitions. [2022-11-25 16:58:45,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 126 transitions, 611 flow [2022-11-25 16:58:45,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 126 transitions, 611 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 16:58:45,432 INFO L231 Difference]: Finished difference. Result has 91 places, 113 transitions, 523 flow [2022-11-25 16:58:45,432 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=523, PETRI_PLACES=91, PETRI_TRANSITIONS=113} [2022-11-25 16:58:45,434 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, -11 predicate places. [2022-11-25 16:58:45,435 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 113 transitions, 523 flow [2022-11-25 16:58:45,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 237.6) internal successors, (1188), 5 states have internal predecessors, (1188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:45,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:45,436 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] [2022-11-25 16:58:45,437 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 16:58:45,437 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)] === [2022-11-25 16:58:45,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:45,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1867690381, now seen corresponding path program 1 times [2022-11-25 16:58:45,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:45,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651589787] [2022-11-25 16:58:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:45,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:46,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:46,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651589787] [2022-11-25 16:58:46,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651589787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:46,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:46,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 16:58:46,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026012018] [2022-11-25 16:58:46,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:46,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:58:46,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:46,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:58:46,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:58:49,004 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 392 [2022-11-25 16:58:49,007 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 113 transitions, 523 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) [2022-11-25 16:58:49,007 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:49,007 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 392 [2022-11-25 16:58:49,007 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:50,870 INFO L130 PetriNetUnfolder]: 3044/6575 cut-off events. [2022-11-25 16:58:50,870 INFO L131 PetriNetUnfolder]: For 6196/6209 co-relation queries the response was YES. [2022-11-25 16:58:50,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17958 conditions, 6575 events. 3044/6575 cut-off events. For 6196/6209 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 48029 event pairs, 1008 based on Foata normal form. 137/6025 useless extension candidates. Maximal degree in co-relation 17948. Up to 2298 conditions per place. [2022-11-25 16:58:50,994 INFO L137 encePairwiseOnDemand]: 378/392 looper letters, 191 selfloop transitions, 42 changer transitions 27/296 dead transitions. [2022-11-25 16:58:50,994 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 296 transitions, 1698 flow [2022-11-25 16:58:50,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-25 16:58:50,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-11-25 16:58:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2837 transitions. [2022-11-25 16:58:51,002 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6031037414965986 [2022-11-25 16:58:51,002 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2837 transitions. [2022-11-25 16:58:51,002 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2837 transitions. [2022-11-25 16:58:51,008 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:51,008 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2837 transitions. [2022-11-25 16:58:51,015 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) [2022-11-25 16:58:51,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 392.0) internal successors, (5096), 13 states have internal predecessors, (5096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:51,027 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 392.0) internal successors, (5096), 13 states have internal predecessors, (5096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:51,027 INFO L175 Difference]: Start difference. First operand has 91 places, 113 transitions, 523 flow. Second operand 12 states and 2837 transitions. [2022-11-25 16:58:51,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 296 transitions, 1698 flow [2022-11-25 16:58:51,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 296 transitions, 1651 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-25 16:58:51,050 INFO L231 Difference]: Finished difference. Result has 106 places, 125 transitions, 746 flow [2022-11-25 16:58:51,050 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:58:51,052 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2022-11-25 16:58:51,052 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 125 transitions, 746 flow [2022-11-25 16:58:51,054 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) [2022-11-25 16:58:51,054 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:51,054 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] [2022-11-25 16:58:51,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 16:58:51,055 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)] === [2022-11-25 16:58:51,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:51,055 INFO L85 PathProgramCache]: Analyzing trace with hash -715183475, now seen corresponding path program 2 times [2022-11-25 16:58:51,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:51,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142620158] [2022-11-25 16:58:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:51,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:51,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:51,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142620158] [2022-11-25 16:58:51,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142620158] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:51,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:51,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-25 16:58:51,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154463518] [2022-11-25 16:58:51,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:51,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:58:51,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:51,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:58:51,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:58:52,655 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 392 [2022-11-25 16:58:52,657 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) [2022-11-25 16:58:52,658 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:52,658 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 392 [2022-11-25 16:58:52,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:54,284 INFO L130 PetriNetUnfolder]: 2871/5620 cut-off events. [2022-11-25 16:58:54,285 INFO L131 PetriNetUnfolder]: For 9572/9756 co-relation queries the response was YES. [2022-11-25 16:58:54,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18291 conditions, 5620 events. 2871/5620 cut-off events. For 9572/9756 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 35667 event pairs, 685 based on Foata normal form. 70/5095 useless extension candidates. Maximal degree in co-relation 18275. Up to 2294 conditions per place. [2022-11-25 16:58:54,349 INFO L137 encePairwiseOnDemand]: 386/392 looper letters, 175 selfloop transitions, 8 changer transitions 16/234 dead transitions. [2022-11-25 16:58:54,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 234 transitions, 1510 flow [2022-11-25 16:58:54,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 16:58:54,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 16:58:54,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1766 transitions. [2022-11-25 16:58:54,358 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6435860058309038 [2022-11-25 16:58:54,358 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1766 transitions. [2022-11-25 16:58:54,358 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1766 transitions. [2022-11-25 16:58:54,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:54,360 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1766 transitions. [2022-11-25 16:58:54,364 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) [2022-11-25 16:58:54,369 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:54,371 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 392.0) internal successors, (3136), 8 states have internal predecessors, (3136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:54,371 INFO L175 Difference]: Start difference. First operand has 106 places, 125 transitions, 746 flow. Second operand 7 states and 1766 transitions. [2022-11-25 16:58:54,371 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 234 transitions, 1510 flow [2022-11-25 16:58:54,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 234 transitions, 1451 flow, removed 1 selfloop flow, removed 7 redundant places. [2022-11-25 16:58:54,440 INFO L231 Difference]: Finished difference. Result has 102 places, 120 transitions, 684 flow [2022-11-25 16:58:54,441 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:58:54,445 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 0 predicate places. [2022-11-25 16:58:54,445 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 120 transitions, 684 flow [2022-11-25 16:58:54,447 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) [2022-11-25 16:58:54,447 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:54,448 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] [2022-11-25 16:58:54,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 16:58:54,448 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:58:54,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:54,449 INFO L85 PathProgramCache]: Analyzing trace with hash 2143819554, now seen corresponding path program 1 times [2022-11-25 16:58:54,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:54,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216709141] [2022-11-25 16:58:54,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:54,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:54,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:54,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216709141] [2022-11-25 16:58:54,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216709141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:54,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:54,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:58:54,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404197219] [2022-11-25 16:58:54,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:54,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:58:54,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:54,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:58:54,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:58:55,512 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 392 [2022-11-25 16:58:55,514 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) [2022-11-25 16:58:55,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:58:55,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 392 [2022-11-25 16:58:55,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:58:58,105 INFO L130 PetriNetUnfolder]: 8782/14427 cut-off events. [2022-11-25 16:58:58,105 INFO L131 PetriNetUnfolder]: For 46510/47530 co-relation queries the response was YES. [2022-11-25 16:58:58,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51387 conditions, 14427 events. 8782/14427 cut-off events. For 46510/47530 co-relation queries the response was YES. Maximal size of possible extension queue 626. Compared 93459 event pairs, 1246 based on Foata normal form. 259/13451 useless extension candidates. Maximal degree in co-relation 51374. Up to 9720 conditions per place. [2022-11-25 16:58:58,234 INFO L137 encePairwiseOnDemand]: 382/392 looper letters, 90 selfloop transitions, 197 changer transitions 0/326 dead transitions. [2022-11-25 16:58:58,235 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 326 transitions, 3084 flow [2022-11-25 16:58:58,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:58:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:58:58,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1469 transitions. [2022-11-25 16:58:58,240 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6245748299319728 [2022-11-25 16:58:58,240 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1469 transitions. [2022-11-25 16:58:58,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1469 transitions. [2022-11-25 16:58:58,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:58:58,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1469 transitions. [2022-11-25 16:58:58,245 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) [2022-11-25 16:58:58,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:58,251 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:58:58,251 INFO L175 Difference]: Start difference. First operand has 102 places, 120 transitions, 684 flow. Second operand 6 states and 1469 transitions. [2022-11-25 16:58:58,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 326 transitions, 3084 flow [2022-11-25 16:58:58,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 326 transitions, 3067 flow, removed 1 selfloop flow, removed 6 redundant places. [2022-11-25 16:58:58,305 INFO L231 Difference]: Finished difference. Result has 103 places, 316 transitions, 3361 flow [2022-11-25 16:58:58,305 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:58:58,308 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 1 predicate places. [2022-11-25 16:58:58,308 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 316 transitions, 3361 flow [2022-11-25 16:58:58,309 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) [2022-11-25 16:58:58,309 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:58:58,310 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] [2022-11-25 16:58:58,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 16:58:58,310 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread0Err1ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:58:58,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:58:58,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1147655004, now seen corresponding path program 1 times [2022-11-25 16:58:58,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:58:58,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888993313] [2022-11-25 16:58:58,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:58:58,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:58:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:58:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:58:58,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:58:58,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888993313] [2022-11-25 16:58:58,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888993313] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:58:58,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:58:58,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:58:58,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139080635] [2022-11-25 16:58:58,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:58:58,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:58:58,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:58:58,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:58:58,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:59:00,040 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 392 [2022-11-25 16:59:00,043 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) [2022-11-25 16:59:00,043 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:00,043 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 392 [2022-11-25 16:59:00,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:02,467 INFO L130 PetriNetUnfolder]: 8171/14011 cut-off events. [2022-11-25 16:59:02,467 INFO L131 PetriNetUnfolder]: For 68757/70159 co-relation queries the response was YES. [2022-11-25 16:59:02,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60674 conditions, 14011 events. 8171/14011 cut-off events. For 68757/70159 co-relation queries the response was YES. Maximal size of possible extension queue 587. Compared 94842 event pairs, 682 based on Foata normal form. 886/13917 useless extension candidates. Maximal degree in co-relation 60657. Up to 7541 conditions per place. [2022-11-25 16:59:02,604 INFO L137 encePairwiseOnDemand]: 385/392 looper letters, 367 selfloop transitions, 12 changer transitions 0/418 dead transitions. [2022-11-25 16:59:02,604 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 418 transitions, 5217 flow [2022-11-25 16:59:02,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:59:02,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 16:59:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1913 transitions. [2022-11-25 16:59:02,610 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6100127551020408 [2022-11-25 16:59:02,610 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1913 transitions. [2022-11-25 16:59:02,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1913 transitions. [2022-11-25 16:59:02,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:02,612 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1913 transitions. [2022-11-25 16:59:02,616 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) [2022-11-25 16:59:02,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 392.0) internal successors, (3528), 9 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:02,623 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 392.0) internal successors, (3528), 9 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:02,624 INFO L175 Difference]: Start difference. First operand has 103 places, 316 transitions, 3361 flow. Second operand 8 states and 1913 transitions. [2022-11-25 16:59:02,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 418 transitions, 5217 flow [2022-11-25 16:59:02,752 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 418 transitions, 5167 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 16:59:02,759 INFO L231 Difference]: Finished difference. Result has 108 places, 315 transitions, 3331 flow [2022-11-25 16:59:02,760 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:59:02,761 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 6 predicate places. [2022-11-25 16:59:02,761 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 315 transitions, 3331 flow [2022-11-25 16:59:02,762 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) [2022-11-25 16:59:02,762 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:02,762 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] [2022-11-25 16:59:02,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 16:59:02,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:59:02,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:02,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1477862569, now seen corresponding path program 1 times [2022-11-25 16:59:02,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:02,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501756430] [2022-11-25 16:59:02,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:02,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:03,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:03,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501756430] [2022-11-25 16:59:03,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501756430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:03,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:03,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:59:03,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884873869] [2022-11-25 16:59:03,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:03,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:59:03,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:03,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:59:03,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:04,120 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 392 [2022-11-25 16:59:04,122 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) [2022-11-25 16:59:04,123 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:04,123 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 392 [2022-11-25 16:59:04,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:07,187 INFO L130 PetriNetUnfolder]: 11311/17962 cut-off events. [2022-11-25 16:59:07,187 INFO L131 PetriNetUnfolder]: For 115090/116619 co-relation queries the response was YES. [2022-11-25 16:59:07,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79236 conditions, 17962 events. 11311/17962 cut-off events. For 115090/116619 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 113190 event pairs, 1491 based on Foata normal form. 333/17110 useless extension candidates. Maximal degree in co-relation 79219. Up to 12110 conditions per place. [2022-11-25 16:59:07,345 INFO L137 encePairwiseOnDemand]: 383/392 looper letters, 280 selfloop transitions, 149 changer transitions 0/471 dead transitions. [2022-11-25 16:59:07,345 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 471 transitions, 5921 flow [2022-11-25 16:59:07,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:59:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:59:07,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1463 transitions. [2022-11-25 16:59:07,351 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6220238095238095 [2022-11-25 16:59:07,351 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1463 transitions. [2022-11-25 16:59:07,351 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1463 transitions. [2022-11-25 16:59:07,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:07,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1463 transitions. [2022-11-25 16:59:07,363 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) [2022-11-25 16:59:07,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:07,368 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:07,369 INFO L175 Difference]: Start difference. First operand has 108 places, 315 transitions, 3331 flow. Second operand 6 states and 1463 transitions. [2022-11-25 16:59:07,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 471 transitions, 5921 flow [2022-11-25 16:59:07,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 471 transitions, 5899 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 16:59:07,456 INFO L231 Difference]: Finished difference. Result has 112 places, 463 transitions, 5699 flow [2022-11-25 16:59:07,456 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:59:07,459 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2022-11-25 16:59:07,459 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 463 transitions, 5699 flow [2022-11-25 16:59:07,460 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) [2022-11-25 16:59:07,460 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:07,460 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] [2022-11-25 16:59:07,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 16:59:07,460 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread0Err2ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:59:07,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:07,461 INFO L85 PathProgramCache]: Analyzing trace with hash 449580792, now seen corresponding path program 1 times [2022-11-25 16:59:07,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:07,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186615277] [2022-11-25 16:59:07,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:07,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:07,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:07,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:07,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186615277] [2022-11-25 16:59:07,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186615277] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:07,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:07,986 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:59:07,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265302705] [2022-11-25 16:59:07,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:07,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:59:07,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:07,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:59:07,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:59:09,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 392 [2022-11-25 16:59:09,099 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) [2022-11-25 16:59:09,099 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:09,099 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 392 [2022-11-25 16:59:09,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:12,564 INFO L130 PetriNetUnfolder]: 11021/17811 cut-off events. [2022-11-25 16:59:12,564 INFO L131 PetriNetUnfolder]: For 141901/143370 co-relation queries the response was YES. [2022-11-25 16:59:12,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88305 conditions, 17811 events. 11021/17811 cut-off events. For 141901/143370 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 114614 event pairs, 1043 based on Foata normal form. 417/17167 useless extension candidates. Maximal degree in co-relation 88284. Up to 10383 conditions per place. [2022-11-25 16:59:12,793 INFO L137 encePairwiseOnDemand]: 385/392 looper letters, 487 selfloop transitions, 12 changer transitions 0/541 dead transitions. [2022-11-25 16:59:12,793 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 541 transitions, 7667 flow [2022-11-25 16:59:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:59:12,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 16:59:12,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1909 transitions. [2022-11-25 16:59:12,799 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6087372448979592 [2022-11-25 16:59:12,799 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1909 transitions. [2022-11-25 16:59:12,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1909 transitions. [2022-11-25 16:59:12,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:12,801 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1909 transitions. [2022-11-25 16:59:12,804 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) [2022-11-25 16:59:12,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 392.0) internal successors, (3528), 9 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:12,811 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 392.0) internal successors, (3528), 9 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:12,811 INFO L175 Difference]: Start difference. First operand has 112 places, 463 transitions, 5699 flow. Second operand 8 states and 1909 transitions. [2022-11-25 16:59:12,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 541 transitions, 7667 flow [2022-11-25 16:59:13,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 541 transitions, 7341 flow, removed 144 selfloop flow, removed 1 redundant places. [2022-11-25 16:59:13,055 INFO L231 Difference]: Finished difference. Result has 117 places, 462 transitions, 5393 flow [2022-11-25 16:59:13,056 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:59:13,057 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 15 predicate places. [2022-11-25 16:59:13,057 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 462 transitions, 5393 flow [2022-11-25 16:59:13,060 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) [2022-11-25 16:59:13,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:13,060 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] [2022-11-25 16:59:13,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 16:59:13,061 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:59:13,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:13,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1133998267, now seen corresponding path program 1 times [2022-11-25 16:59:13,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:13,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356203432] [2022-11-25 16:59:13,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:13,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:13,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:13,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:13,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356203432] [2022-11-25 16:59:13,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356203432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:13,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:13,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:59:13,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451573838] [2022-11-25 16:59:13,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:13,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:59:13,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:13,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:59:13,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:14,226 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 392 [2022-11-25 16:59:14,243 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) [2022-11-25 16:59:14,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:14,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 392 [2022-11-25 16:59:14,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:17,512 INFO L130 PetriNetUnfolder]: 12153/19193 cut-off events. [2022-11-25 16:59:17,513 INFO L131 PetriNetUnfolder]: For 159230/160961 co-relation queries the response was YES. [2022-11-25 16:59:17,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92647 conditions, 19193 events. 12153/19193 cut-off events. For 159230/160961 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 120295 event pairs, 1487 based on Foata normal form. 377/18495 useless extension candidates. Maximal degree in co-relation 92626. Up to 12950 conditions per place. [2022-11-25 16:59:17,754 INFO L137 encePairwiseOnDemand]: 384/392 looper letters, 422 selfloop transitions, 149 changer transitions 0/616 dead transitions. [2022-11-25 16:59:17,754 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 616 transitions, 8429 flow [2022-11-25 16:59:17,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:59:17,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:59:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1457 transitions. [2022-11-25 16:59:17,760 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6194727891156463 [2022-11-25 16:59:17,760 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1457 transitions. [2022-11-25 16:59:17,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1457 transitions. [2022-11-25 16:59:17,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:17,762 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1457 transitions. [2022-11-25 16:59:17,766 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) [2022-11-25 16:59:17,772 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:17,773 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:17,773 INFO L175 Difference]: Start difference. First operand has 117 places, 462 transitions, 5393 flow. Second operand 6 states and 1457 transitions. [2022-11-25 16:59:17,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 616 transitions, 8429 flow [2022-11-25 16:59:18,016 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 616 transitions, 8407 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 16:59:18,032 INFO L231 Difference]: Finished difference. Result has 121 places, 610 transitions, 7929 flow [2022-11-25 16:59:18,033 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:59:18,034 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 19 predicate places. [2022-11-25 16:59:18,034 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 610 transitions, 7929 flow [2022-11-25 16:59:18,035 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) [2022-11-25 16:59:18,035 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:18,035 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] [2022-11-25 16:59:18,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 16:59:18,036 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread0Err3ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:59:18,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:18,037 INFO L85 PathProgramCache]: Analyzing trace with hash 388407751, now seen corresponding path program 1 times [2022-11-25 16:59:18,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:18,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657825437] [2022-11-25 16:59:18,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:18,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:18,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:18,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:18,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657825437] [2022-11-25 16:59:18,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657825437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:18,866 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:18,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:59:18,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981265002] [2022-11-25 16:59:18,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:18,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:59:18,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:18,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:59:18,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:59:20,048 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 392 [2022-11-25 16:59:20,050 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) [2022-11-25 16:59:20,050 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:20,050 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 392 [2022-11-25 16:59:20,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:23,549 INFO L130 PetriNetUnfolder]: 12109/19205 cut-off events. [2022-11-25 16:59:23,549 INFO L131 PetriNetUnfolder]: For 179248/180989 co-relation queries the response was YES. [2022-11-25 16:59:23,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98653 conditions, 19205 events. 12109/19205 cut-off events. For 179248/180989 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 121042 event pairs, 1251 based on Foata normal form. 417/18589 useless extension candidates. Maximal degree in co-relation 98628. Up to 11442 conditions per place. [2022-11-25 16:59:23,777 INFO L137 encePairwiseOnDemand]: 385/392 looper letters, 607 selfloop transitions, 12 changer transitions 0/664 dead transitions. [2022-11-25 16:59:23,778 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 664 transitions, 9913 flow [2022-11-25 16:59:23,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:59:23,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 16:59:23,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1905 transitions. [2022-11-25 16:59:23,785 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6074617346938775 [2022-11-25 16:59:23,786 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1905 transitions. [2022-11-25 16:59:23,786 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1905 transitions. [2022-11-25 16:59:23,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:23,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1905 transitions. [2022-11-25 16:59:23,795 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) [2022-11-25 16:59:23,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 392.0) internal successors, (3528), 9 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:23,806 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 392.0) internal successors, (3528), 9 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:23,806 INFO L175 Difference]: Start difference. First operand has 121 places, 610 transitions, 7929 flow. Second operand 8 states and 1905 transitions. [2022-11-25 16:59:23,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 664 transitions, 9913 flow [2022-11-25 16:59:24,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 664 transitions, 9779 flow, removed 48 selfloop flow, removed 1 redundant places. [2022-11-25 16:59:24,142 INFO L231 Difference]: Finished difference. Result has 126 places, 609 transitions, 7815 flow [2022-11-25 16:59:24,143 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:59:24,143 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 24 predicate places. [2022-11-25 16:59:24,144 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 609 transitions, 7815 flow [2022-11-25 16:59:24,145 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) [2022-11-25 16:59:24,145 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:24,145 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] [2022-11-25 16:59:24,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 16:59:24,146 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:59:24,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:24,146 INFO L85 PathProgramCache]: Analyzing trace with hash -823505212, now seen corresponding path program 1 times [2022-11-25 16:59:24,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:24,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936671998] [2022-11-25 16:59:24,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:24,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:24,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:24,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:24,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936671998] [2022-11-25 16:59:24,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936671998] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:24,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:24,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 16:59:24,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067658214] [2022-11-25 16:59:24,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:24,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 16:59:24,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:24,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 16:59:24,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-25 16:59:25,359 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 392 [2022-11-25 16:59:25,361 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) [2022-11-25 16:59:25,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:25,362 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 392 [2022-11-25 16:59:25,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:28,612 INFO L130 PetriNetUnfolder]: 12403/19498 cut-off events. [2022-11-25 16:59:28,613 INFO L131 PetriNetUnfolder]: For 193212/195041 co-relation queries the response was YES. [2022-11-25 16:59:28,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100250 conditions, 19498 events. 12403/19498 cut-off events. For 193212/195041 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 121602 event pairs, 1490 based on Foata normal form. 393/18916 useless extension candidates. Maximal degree in co-relation 100225. Up to 13265 conditions per place. [2022-11-25 16:59:28,744 INFO L137 encePairwiseOnDemand]: 385/392 looper letters, 417 selfloop transitions, 101 changer transitions 147/713 dead transitions. [2022-11-25 16:59:28,744 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 713 transitions, 10633 flow [2022-11-25 16:59:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 16:59:28,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-25 16:59:28,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1451 transitions. [2022-11-25 16:59:28,749 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6169217687074829 [2022-11-25 16:59:28,749 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1451 transitions. [2022-11-25 16:59:28,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1451 transitions. [2022-11-25 16:59:28,750 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:28,751 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1451 transitions. [2022-11-25 16:59:28,754 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) [2022-11-25 16:59:28,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,759 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 392.0) internal successors, (2744), 7 states have internal predecessors, (2744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:28,759 INFO L175 Difference]: Start difference. First operand has 126 places, 609 transitions, 7815 flow. Second operand 6 states and 1451 transitions. [2022-11-25 16:59:28,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 713 transitions, 10633 flow [2022-11-25 16:59:29,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 713 transitions, 10611 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-11-25 16:59:29,039 INFO L231 Difference]: Finished difference. Result has 130 places, 562 transitions, 7480 flow [2022-11-25 16:59:29,039 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:59:29,040 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 28 predicate places. [2022-11-25 16:59:29,040 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 562 transitions, 7480 flow [2022-11-25 16:59:29,041 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) [2022-11-25 16:59:29,041 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 16:59:29,041 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] [2022-11-25 16:59:29,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 16:59:29,041 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread0Err4ASSERT_VIOLATIONDATA_RACE === [thread0Err0ASSERT_VIOLATIONDATA_RACE, thread0Err1ASSERT_VIOLATIONDATA_RACE, thread0Err2ASSERT_VIOLATIONDATA_RACE, thread0Err3ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2022-11-25 16:59:29,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:59:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash 415657371, now seen corresponding path program 1 times [2022-11-25 16:59:29,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:59:29,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836426829] [2022-11-25 16:59:29,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:59:29,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:59:29,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:59:29,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:59:29,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:59:29,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836426829] [2022-11-25 16:59:29,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836426829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:59:29,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:59:29,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-25 16:59:29,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049608688] [2022-11-25 16:59:29,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:59:29,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 16:59:29,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:59:29,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 16:59:29,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-11-25 16:59:30,717 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 392 [2022-11-25 16:59:30,723 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) [2022-11-25 16:59:30,723 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 16:59:30,723 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 392 [2022-11-25 16:59:30,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 16:59:33,892 INFO L130 PetriNetUnfolder]: 10892/17831 cut-off events. [2022-11-25 16:59:33,892 INFO L131 PetriNetUnfolder]: For 169791/171040 co-relation queries the response was YES. [2022-11-25 16:59:33,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91926 conditions, 17831 events. 10892/17831 cut-off events. For 169791/171040 co-relation queries the response was YES. Maximal size of possible extension queue 517. Compared 116989 event pairs, 1258 based on Foata normal form. 293/17282 useless extension candidates. Maximal degree in co-relation 91897. Up to 11478 conditions per place. [2022-11-25 16:59:33,979 INFO L137 encePairwiseOnDemand]: 385/392 looper letters, 0 selfloop transitions, 0 changer transitions 568/568 dead transitions. [2022-11-25 16:59:33,979 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 568 transitions, 8530 flow [2022-11-25 16:59:33,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 16:59:33,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-11-25 16:59:33,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1813 transitions. [2022-11-25 16:59:33,985 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.578125 [2022-11-25 16:59:33,985 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1813 transitions. [2022-11-25 16:59:33,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1813 transitions. [2022-11-25 16:59:33,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 16:59:33,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1813 transitions. [2022-11-25 16:59:33,991 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) [2022-11-25 16:59:33,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 392.0) internal successors, (3528), 9 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:33,996 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 392.0) internal successors, (3528), 9 states have internal predecessors, (3528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:59:33,996 INFO L175 Difference]: Start difference. First operand has 130 places, 562 transitions, 7480 flow. Second operand 8 states and 1813 transitions. [2022-11-25 16:59:33,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 568 transitions, 8530 flow [2022-11-25 16:59:34,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 568 transitions, 8456 flow, removed 24 selfloop flow, removed 1 redundant places. [2022-11-25 16:59:34,327 INFO L231 Difference]: Finished difference. Result has 135 places, 0 transitions, 0 flow [2022-11-25 16:59:34,327 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=392, 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} [2022-11-25 16:59:34,328 INFO L288 CegarLoopForPetriNet]: 102 programPoint places, 33 predicate places. [2022-11-25 16:59:34,328 INFO L495 AbstractCegarLoop]: Abstraction has has 135 places, 0 transitions, 0 flow [2022-11-25 16:59:34,328 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) [2022-11-25 16:59:34,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (39 of 40 remaining) [2022-11-25 16:59:34,331 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2022-11-25 16:59:34,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2022-11-25 16:59:34,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2022-11-25 16:59:34,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2022-11-25 16:59:34,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 40 remaining) [2022-11-25 16:59:34,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 40 remaining) [2022-11-25 16:59:34,332 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 40 remaining) [2022-11-25 16:59:34,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err5INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 40 remaining) [2022-11-25 16:59:34,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err7INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 40 remaining) [2022-11-25 16:59:34,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2022-11-25 16:59:34,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2022-11-25 16:59:34,333 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2022-11-25 16:59:34,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2022-11-25 16:59:34,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2022-11-25 16:59:34,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2022-11-25 16:59:34,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2022-11-25 16:59:34,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2022-11-25 16:59:34,334 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2022-11-25 16:59:34,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2022-11-25 16:59:34,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 40 remaining) [2022-11-25 16:59:34,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err0ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2022-11-25 16:59:34,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err1ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2022-11-25 16:59:34,335 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err2ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2022-11-25 16:59:34,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err3ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2022-11-25 16:59:34,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Err4ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2022-11-25 16:59:34,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 40 remaining) [2022-11-25 16:59:34,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err6INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 40 remaining) [2022-11-25 16:59:34,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err8INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 40 remaining) [2022-11-25 16:59:34,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err9INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 40 remaining) [2022-11-25 16:59:34,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread0Thread1of1ForFork0Err10INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 40 remaining) [2022-11-25 16:59:34,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2022-11-25 16:59:34,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2022-11-25 16:59:34,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2022-11-25 16:59:34,337 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2022-11-25 16:59:34,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2022-11-25 16:59:34,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2022-11-25 16:59:34,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2022-11-25 16:59:34,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2022-11-25 16:59:34,338 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2022-11-25 16:59:34,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 16:59:34,339 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:59:34,344 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 16:59:34,345 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:59:34,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:59:34 BasicIcfg [2022-11-25 16:59:34,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:59:34,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:59:34,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:59:34,349 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:59:34,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:58:27" (3/4) ... [2022-11-25 16:59:34,352 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:59:34,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread0 [2022-11-25 16:59:34,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-25 16:59:34,358 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-25 16:59:34,359 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2022-11-25 16:59:34,364 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-25 16:59:34,364 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-25 16:59:34,365 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 16:59:34,365 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:59:34,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:59:34,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:59:34,402 INFO L158 Benchmark]: Toolchain (without parser) took 68352.50ms. Allocated memory was 146.8MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 104.0MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-25 16:59:34,402 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:59:34,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 912.89ms. Allocated memory is still 146.8MB. Free memory was 103.6MB in the beginning and 109.8MB in the end (delta: -6.2MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2022-11-25 16:59:34,403 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.12ms. Allocated memory is still 146.8MB. Free memory was 109.8MB in the beginning and 107.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:34,404 INFO L158 Benchmark]: Boogie Preprocessor took 41.92ms. Allocated memory is still 146.8MB. Free memory was 107.6MB in the beginning and 104.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:34,404 INFO L158 Benchmark]: RCFGBuilder took 873.84ms. Allocated memory is still 146.8MB. Free memory was 104.8MB in the beginning and 81.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:34,405 INFO L158 Benchmark]: TraceAbstraction took 66410.00ms. Allocated memory was 146.8MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 81.2MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-25 16:59:34,405 INFO L158 Benchmark]: Witness Printer took 52.99ms. Allocated memory is still 9.3GB. Free memory was 7.9GB in the beginning and 7.9GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:59:34,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 104.9MB. Free memory is still 54.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 912.89ms. Allocated memory is still 146.8MB. Free memory was 103.6MB in the beginning and 109.8MB in the end (delta: -6.2MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.12ms. Allocated memory is still 146.8MB. Free memory was 109.8MB in the beginning and 107.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.92ms. Allocated memory is still 146.8MB. Free memory was 107.6MB in the beginning and 104.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 873.84ms. Allocated memory is still 146.8MB. Free memory was 104.8MB in the beginning and 81.8MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 66410.00ms. Allocated memory was 146.8MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 81.2MB in the beginning and 7.9GB in the end (delta: -7.8GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 52.99ms. Allocated memory is still 9.3GB. Free memory was 7.9GB in the beginning and 7.9GB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.4s, 191 PlacesBefore, 102 PlacesAfterwards, 177 TransitionsBefore, 88 TransitionsAfterwards, 4608 CoEnabledTransitionPairs, 5 FixpointIterations, 32 TrivialSequentialCompositions, 73 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 105 TotalNumberOfCompositions, 21013 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9631, independent: 9104, independent conditional: 0, independent unconditional: 9104, dependent: 524, dependent conditional: 0, dependent unconditional: 524, unknown: 3, unknown conditional: 0, unknown unconditional: 3] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3046, independent: 2857, independent conditional: 0, independent unconditional: 2857, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3046, independent: 2575, independent conditional: 0, independent unconditional: 2575, dependent: 471, dependent conditional: 0, dependent unconditional: 471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 471, independent: 282, independent conditional: 0, independent unconditional: 282, dependent: 187, dependent conditional: 0, dependent unconditional: 187, unknown: 2, unknown conditional: 0, unknown unconditional: 2] , SemanticIndependenceRelation.Query Time [ms]: [ total: 7642, independent: 725, independent conditional: 0, independent unconditional: 725, dependent: 6697, dependent conditional: 0, dependent unconditional: 6697, unknown: 220, unknown conditional: 0, unknown unconditional: 220] ], Cache Queries: [ total: 9631, independent: 6247, independent conditional: 0, independent unconditional: 6247, dependent: 337, dependent conditional: 0, dependent unconditional: 337, unknown: 3047, unknown conditional: 0, unknown unconditional: 3047] , Statistics on independence cache: Total cache size (in pairs): 869, Positive cache size: 789, Positive conditional cache size: 0, Positive unconditional cache size: 789, Negative cache size: 80, Negative conditional cache size: 0, Negative unconditional cache size: 80, 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: 66.2s, OverallIterations: 13, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 45.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5043 SdHoareTripleChecker+Valid, 14.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3337 mSDsluCounter, 1305 SdHoareTripleChecker+Invalid, 12.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1232 mSDsCounter, 2492 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12854 IncrementalHoareTripleChecker+Invalid, 15346 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2492 mSolverCounterUnsat, 73 mSDtfsCounter, 12854 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7929occurred in iteration=10, InterpolantAutomatonStates: 88, 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: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.4s InterpolantComputationTime, 383 NumberOfCodeBlocks, 383 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 370 ConstructedInterpolants, 0 QuantifiedInterpolants, 2453 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! [2022-11-25 16:59:34,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f357fc1b-3448-41ff-899f-8d1b342f1f16/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE