./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 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_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 963498115a8eca6e92c68ab7fa8168826446f05b9b398350c3ee0745adf1bb45 --- 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-b5237d8 [2022-11-22 02:02:36,258 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:02:36,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:02:36,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:02:36,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:02:36,291 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:02:36,308 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:02:36,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:02:36,311 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:02:36,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:02:36,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:02:36,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:02:36,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:02:36,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:02:36,316 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:02:36,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:02:36,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:02:36,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:02:36,321 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:02:36,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:02:36,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:02:36,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:02:36,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:02:36,342 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:02:36,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:02:36,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:02:36,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:02:36,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:02:36,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:02:36,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:02:36,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:02:36,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:02:36,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:02:36,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:02:36,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:02:36,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:02:36,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:02:36,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:02:36,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:02:36,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:02:36,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:02:36,361 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-11-22 02:02:36,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:02:36,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:02:36,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:02:36,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:02:36,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:02:36,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:02:36,407 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:02:36,407 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:02:36,407 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:02:36,407 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:02:36,408 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:02:36,409 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:02:36,409 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:02:36,409 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:02:36,410 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:02:36,410 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:02:36,410 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:02:36,411 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:02:36,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:02:36,412 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:02:36,412 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:02:36,412 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:02:36,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:02:36,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:02:36,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:02:36,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:02:36,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:02:36,414 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-22 02:02:36,414 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:02:36,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:02:36,414 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:02:36,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:02:36,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:02:36,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:02:36,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:02:36,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:02:36,417 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:02:36,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:02:36,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:02:36,418 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:02:36,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:02:36,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:02:36,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:02:36,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 963498115a8eca6e92c68ab7fa8168826446f05b9b398350c3ee0745adf1bb45 [2022-11-22 02:02:36,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:02:36,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:02:36,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:02:36,716 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:02:36,716 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:02:36,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i [2022-11-22 02:02:39,752 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:02:40,052 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:02:40,052 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i [2022-11-22 02:02:40,065 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/data/a173de2cc/db33e550e9cb401994f7059d090e7fa1/FLAG101a62950 [2022-11-22 02:02:40,082 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/data/a173de2cc/db33e550e9cb401994f7059d090e7fa1 [2022-11-22 02:02:40,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:02:40,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:02:40,088 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:40,088 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:02:40,093 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:02:40,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9a75e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40, skipping insertion in model container [2022-11-22 02:02:40,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:02:40,171 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:02:40,632 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_f16af84d-5aad-4c77-8cd6-c7899b246677/sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i[30540,30553] [2022-11-22 02:02:40,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:40,650 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:02:40,710 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_f16af84d-5aad-4c77-8cd6-c7899b246677/sv-benchmarks/c/pthread-ext/11_fmaxsymopt.i[30540,30553] [2022-11-22 02:02:40,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:40,766 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:02:40,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40 WrapperNode [2022-11-22 02:02:40,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:40,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:40,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:02:40,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:02:40,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,847 INFO L138 Inliner]: procedures = 171, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 107 [2022-11-22 02:02:40,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:40,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:02:40,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:02:40,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:02:40,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,897 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,906 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:02:40,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:02:40,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:02:40,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:02:40,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (1/1) ... [2022-11-22 02:02:40,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:02:40,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:40,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:02:40,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f16af84d-5aad-4c77-8cd6-c7899b246677/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:02:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:02:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-22 02:02:40,988 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-22 02:02:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:02:40,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:02:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:02:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:02:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:02:40,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:02:40,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:02:40,990 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-22 02:02:41,120 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:02:41,122 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:02:41,360 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:02:41,452 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:02:41,452 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 02:02:41,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:41 BoogieIcfgContainer [2022-11-22 02:02:41,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:02:41,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:02:41,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:02:41,464 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:02:41,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:02:40" (1/3) ... [2022-11-22 02:02:41,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd9d812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:41, skipping insertion in model container [2022-11-22 02:02:41,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:40" (2/3) ... [2022-11-22 02:02:41,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd9d812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:41, skipping insertion in model container [2022-11-22 02:02:41,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:41" (3/3) ... [2022-11-22 02:02:41,470 INFO L112 eAbstractionObserver]: Analyzing ICFG 11_fmaxsymopt.i [2022-11-22 02:02:41,484 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-22 02:02:41,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:02:41,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 02:02:41,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-22 02:02:41,595 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:02:41,683 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:02:41,706 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 105 transitions, 215 flow [2022-11-22 02:02:41,716 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 105 transitions, 215 flow [2022-11-22 02:02:41,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 105 transitions, 215 flow [2022-11-22 02:02:41,822 INFO L130 PetriNetUnfolder]: 9/116 cut-off events. [2022-11-22 02:02:41,822 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-22 02:02:41,834 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 116 events. 9/116 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 150 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 80. Up to 4 conditions per place. [2022-11-22 02:02:41,838 INFO L119 LiptonReduction]: Number of co-enabled transitions 1876 [2022-11-22 02:02:46,499 INFO L134 LiptonReduction]: Checked pairs total: 1713 [2022-11-22 02:02:46,499 INFO L136 LiptonReduction]: Total number of compositions: 119 [2022-11-22 02:02:46,508 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 17 transitions, 39 flow [2022-11-22 02:02:46,528 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 57 states, 40 states have (on average 2.5) internal successors, (100), 56 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,553 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:02:46,572 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=FINITE_AUTOMATA, 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;@37d5a0f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:02:46,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2022-11-22 02:02:46,574 INFO L276 IsEmpty]: Start isEmpty. Operand has 57 states, 40 states have (on average 2.5) internal successors, (100), 56 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:02:46,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:46,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:02:46,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err5ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-22 02:02:46,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:46,585 INFO L85 PathProgramCache]: Analyzing trace with hash 522011590, now seen corresponding path program 1 times [2022-11-22 02:02:46,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:46,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237796232] [2022-11-22 02:02:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:46,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:46,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:46,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:46,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237796232] [2022-11-22 02:02:46,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237796232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:46,832 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:46,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:02:46,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194322176] [2022-11-22 02:02:46,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:46,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:02:46,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:46,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:02:46,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:02:46,874 INFO L87 Difference]: Start difference. First operand has 57 states, 40 states have (on average 2.5) internal successors, (100), 56 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:46,907 INFO L93 Difference]: Finished difference Result 15 states and 24 transitions. [2022-11-22 02:02:46,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:02:46,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:02:46,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:46,917 INFO L225 Difference]: With dead ends: 15 [2022-11-22 02:02:46,917 INFO L226 Difference]: Without dead ends: 15 [2022-11-22 02:02:46,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:02:46,923 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:46,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:02:46,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-22 02:02:46,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-22 02:02:46,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 14 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2022-11-22 02:02:46,956 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 5 [2022-11-22 02:02:46,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:46,957 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2022-11-22 02:02:46,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:46,961 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2022-11-22 02:02:46,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:02:46,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:46,962 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 02:02:46,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:02:46,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2022-11-22 02:02:46,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:46,963 INFO L85 PathProgramCache]: Analyzing trace with hash -997589971, now seen corresponding path program 1 times [2022-11-22 02:02:46,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:46,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707654825] [2022-11-22 02:02:46,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:46,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:47,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:02:47,025 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:02:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:02:47,064 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:02:47,065 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:02:47,066 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2022-11-22 02:02:47,068 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 17 remaining) [2022-11-22 02:02:47,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 17 remaining) [2022-11-22 02:02:47,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 17 remaining) [2022-11-22 02:02:47,069 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 17 remaining) [2022-11-22 02:02:47,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 17 remaining) [2022-11-22 02:02:47,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 17 remaining) [2022-11-22 02:02:47,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 17 remaining) [2022-11-22 02:02:47,070 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 17 remaining) [2022-11-22 02:02:47,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 17 remaining) [2022-11-22 02:02:47,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 17 remaining) [2022-11-22 02:02:47,071 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 17 remaining) [2022-11-22 02:02:47,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 17 remaining) [2022-11-22 02:02:47,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 17 remaining) [2022-11-22 02:02:47,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 17 remaining) [2022-11-22 02:02:47,072 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 17 remaining) [2022-11-22 02:02:47,073 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 17 remaining) [2022-11-22 02:02:47,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:02:47,075 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 02:02:47,077 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 02:02:47,077 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-22 02:02:47,123 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:02:47,126 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:02:47,127 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 163 places, 173 transitions, 358 flow [2022-11-22 02:02:47,127 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 163 places, 173 transitions, 358 flow [2022-11-22 02:02:47,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 173 transitions, 358 flow [2022-11-22 02:02:47,174 INFO L130 PetriNetUnfolder]: 17/197 cut-off events. [2022-11-22 02:02:47,175 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-22 02:02:47,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207 conditions, 197 events. 17/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 475 event pairs, 0 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 147. Up to 6 conditions per place. [2022-11-22 02:02:47,186 INFO L119 LiptonReduction]: Number of co-enabled transitions 12864 [2022-11-22 02:02:51,905 INFO L134 LiptonReduction]: Checked pairs total: 29747 [2022-11-22 02:02:51,906 INFO L136 LiptonReduction]: Total number of compositions: 161 [2022-11-22 02:02:51,907 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 58 transitions, 128 flow [2022-11-22 02:02:52,075 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3011 states, 2842 states have (on average 3.248416608022519) internal successors, (9232), 3010 states have internal predecessors, (9232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,079 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:02:52,080 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=FINITE_AUTOMATA, 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;@37d5a0f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:02:52,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2022-11-22 02:02:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 3011 states, 2842 states have (on average 3.248416608022519) internal successors, (9232), 3010 states have internal predecessors, (9232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:02:52,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:52,092 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:02:52,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-22 02:02:52,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:52,093 INFO L85 PathProgramCache]: Analyzing trace with hash 901578957, now seen corresponding path program 1 times [2022-11-22 02:02:52,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:52,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430681241] [2022-11-22 02:02:52,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:52,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:52,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:52,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430681241] [2022-11-22 02:02:52,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430681241] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:52,164 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:52,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:02:52,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612561412] [2022-11-22 02:02:52,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:52,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:02:52,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:52,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:02:52,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:02:52,175 INFO L87 Difference]: Start difference. First operand has 3011 states, 2842 states have (on average 3.248416608022519) internal successors, (9232), 3010 states have internal predecessors, (9232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:52,263 INFO L93 Difference]: Finished difference Result 1516 states and 4359 transitions. [2022-11-22 02:02:52,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:02:52,263 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:02:52,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:52,288 INFO L225 Difference]: With dead ends: 1516 [2022-11-22 02:02:52,289 INFO L226 Difference]: Without dead ends: 1516 [2022-11-22 02:02:52,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:02:52,299 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:52,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:02:52,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2022-11-22 02:02:52,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1516. [2022-11-22 02:02:52,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1516 states, 1500 states have (on average 2.906) internal successors, (4359), 1515 states have internal predecessors, (4359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 4359 transitions. [2022-11-22 02:02:52,398 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 4359 transitions. Word has length 5 [2022-11-22 02:02:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:52,399 INFO L495 AbstractCegarLoop]: Abstraction has 1516 states and 4359 transitions. [2022-11-22 02:02:52,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 4359 transitions. [2022-11-22 02:02:52,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:02:52,400 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:52,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:52,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:02:52,400 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-22 02:02:52,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:52,401 INFO L85 PathProgramCache]: Analyzing trace with hash -1166031577, now seen corresponding path program 1 times [2022-11-22 02:02:52,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:52,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211861710] [2022-11-22 02:02:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:52,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:52,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:52,470 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:52,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211861710] [2022-11-22 02:02:52,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211861710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:52,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:52,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:02:52,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787453372] [2022-11-22 02:02:52,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:52,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:02:52,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:52,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:02:52,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:02:52,473 INFO L87 Difference]: Start difference. First operand 1516 states and 4359 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:52,553 INFO L93 Difference]: Finished difference Result 1694 states and 4861 transitions. [2022-11-22 02:02:52,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:02:52,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 02:02:52,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:52,567 INFO L225 Difference]: With dead ends: 1694 [2022-11-22 02:02:52,568 INFO L226 Difference]: Without dead ends: 1694 [2022-11-22 02:02:52,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:02:52,571 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 24 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:52,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 59 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:02:52,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2022-11-22 02:02:52,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1605. [2022-11-22 02:02:52,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1605 states, 1589 states have (on average 2.9011957205789805) internal successors, (4610), 1604 states have internal predecessors, (4610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 4610 transitions. [2022-11-22 02:02:52,630 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 4610 transitions. Word has length 7 [2022-11-22 02:02:52,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:52,631 INFO L495 AbstractCegarLoop]: Abstraction has 1605 states and 4610 transitions. [2022-11-22 02:02:52,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,631 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 4610 transitions. [2022-11-22 02:02:52,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:02:52,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:52,632 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:52,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:02:52,633 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-22 02:02:52,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:52,634 INFO L85 PathProgramCache]: Analyzing trace with hash 473626026, now seen corresponding path program 1 times [2022-11-22 02:02:52,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:52,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134628273] [2022-11-22 02:02:52,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:52,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:52,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:02:52,682 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:52,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134628273] [2022-11-22 02:02:52,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134628273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:52,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:52,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:02:52,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59371292] [2022-11-22 02:02:52,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:52,684 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:02:52,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:52,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:02:52,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:02:52,685 INFO L87 Difference]: Start difference. First operand 1605 states and 4610 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:52,789 INFO L93 Difference]: Finished difference Result 1845 states and 5202 transitions. [2022-11-22 02:02:52,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:02:52,790 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:02:52,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:52,800 INFO L225 Difference]: With dead ends: 1845 [2022-11-22 02:02:52,800 INFO L226 Difference]: Without dead ends: 1845 [2022-11-22 02:02:52,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:02:52,802 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 31 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:52,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 33 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:02:52,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2022-11-22 02:02:52,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1487. [2022-11-22 02:02:52,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1475 states have (on average 2.8379661016949154) internal successors, (4186), 1486 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 4186 transitions. [2022-11-22 02:02:52,882 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 4186 transitions. Word has length 9 [2022-11-22 02:02:52,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:52,882 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 4186 transitions. [2022-11-22 02:02:52,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:02:52,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 4186 transitions. [2022-11-22 02:02:52,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:02:52,884 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:52,884 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-22 02:02:52,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:02:52,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2022-11-22 02:02:52,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:52,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1026561691, now seen corresponding path program 1 times [2022-11-22 02:02:52,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:52,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682717895] [2022-11-22 02:02:52,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:52,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:02:52,916 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:02:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:02:52,945 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:02:52,945 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:02:52,945 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (24 of 25 remaining) [2022-11-22 02:02:52,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2022-11-22 02:02:52,946 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2022-11-22 02:02:52,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2022-11-22 02:02:52,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2022-11-22 02:02:52,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2022-11-22 02:02:52,947 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2022-11-22 02:02:52,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2022-11-22 02:02:52,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2022-11-22 02:02:52,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2022-11-22 02:02:52,948 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2022-11-22 02:02:52,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2022-11-22 02:02:52,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2022-11-22 02:02:52,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2022-11-22 02:02:52,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2022-11-22 02:02:52,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2022-11-22 02:02:52,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 25 remaining) [2022-11-22 02:02:52,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 25 remaining) [2022-11-22 02:02:52,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2022-11-22 02:02:52,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2022-11-22 02:02:52,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2022-11-22 02:02:52,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2022-11-22 02:02:52,951 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2022-11-22 02:02:52,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2022-11-22 02:02:52,952 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2022-11-22 02:02:52,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:02:52,953 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 02:02:52,953 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 02:02:52,953 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-22 02:02:52,990 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:02:52,994 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:02:52,995 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 226 places, 241 transitions, 503 flow [2022-11-22 02:02:52,995 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 226 places, 241 transitions, 503 flow [2022-11-22 02:02:52,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 226 places, 241 transitions, 503 flow [2022-11-22 02:02:53,060 INFO L130 PetriNetUnfolder]: 25/278 cut-off events. [2022-11-22 02:02:53,060 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-22 02:02:53,065 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 278 events. 25/278 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 850 event pairs, 0 based on Foata normal form. 0/225 useless extension candidates. Maximal degree in co-relation 214. Up to 8 conditions per place. [2022-11-22 02:02:53,082 INFO L119 LiptonReduction]: Number of co-enabled transitions 32964 [2022-11-22 02:02:59,775 INFO L134 LiptonReduction]: Checked pairs total: 80582 [2022-11-22 02:02:59,775 INFO L136 LiptonReduction]: Total number of compositions: 226 [2022-11-22 02:02:59,776 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 84 transitions, 189 flow [2022-11-22 02:03:02,130 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 66407 states, 64862 states have (on average 4.303228392587339) internal successors, (279116), 66406 states have internal predecessors, (279116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:02,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:03:02,131 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=FINITE_AUTOMATA, 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;@37d5a0f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:03:02,132 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2022-11-22 02:03:02,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 66407 states, 64862 states have (on average 4.303228392587339) internal successors, (279116), 66406 states have internal predecessors, (279116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:02,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 02:03:02,520 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:02,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 02:03:02,520 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-11-22 02:03:02,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:02,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1411085687, now seen corresponding path program 1 times [2022-11-22 02:03:02,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:02,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213400924] [2022-11-22 02:03:02,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:02,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:02,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:02,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:02,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213400924] [2022-11-22 02:03:02,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213400924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:02,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:02,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-22 02:03:02,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750807202] [2022-11-22 02:03:02,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:02,571 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 02:03:02,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:02,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 02:03:02,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:03:02,705 INFO L87 Difference]: Start difference. First operand has 66407 states, 64862 states have (on average 4.303228392587339) internal successors, (279116), 66406 states have internal predecessors, (279116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:03,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:03,389 INFO L93 Difference]: Finished difference Result 25792 states and 101429 transitions. [2022-11-22 02:03:03,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 02:03:03,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 02:03:03,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:04,004 INFO L225 Difference]: With dead ends: 25792 [2022-11-22 02:03:04,005 INFO L226 Difference]: Without dead ends: 25792 [2022-11-22 02:03:04,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 02:03:04,006 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:04,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 33 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 02:03:04,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25792 states. [2022-11-22 02:03:05,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25792 to 25792. [2022-11-22 02:03:05,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25792 states, 25728 states have (on average 3.9423585199004973) internal successors, (101429), 25791 states have internal predecessors, (101429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:06,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25792 states to 25792 states and 101429 transitions. [2022-11-22 02:03:06,044 INFO L78 Accepts]: Start accepts. Automaton has 25792 states and 101429 transitions. Word has length 5 [2022-11-22 02:03:06,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:06,044 INFO L495 AbstractCegarLoop]: Abstraction has 25792 states and 101429 transitions. [2022-11-22 02:03:06,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 5.0) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:06,046 INFO L276 IsEmpty]: Start isEmpty. Operand 25792 states and 101429 transitions. [2022-11-22 02:03:06,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 02:03:06,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:06,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:06,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:03:06,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-11-22 02:03:06,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:06,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1156282565, now seen corresponding path program 1 times [2022-11-22 02:03:06,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:06,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69693444] [2022-11-22 02:03:06,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:06,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:06,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:03:06,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:06,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69693444] [2022-11-22 02:03:06,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69693444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:06,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:06,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:03:06,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959204873] [2022-11-22 02:03:06,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:06,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:06,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:06,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:06,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:06,095 INFO L87 Difference]: Start difference. First operand 25792 states and 101429 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:06,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:06,802 INFO L93 Difference]: Finished difference Result 28826 states and 113183 transitions. [2022-11-22 02:03:06,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:06,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-22 02:03:06,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:06,968 INFO L225 Difference]: With dead ends: 28826 [2022-11-22 02:03:06,968 INFO L226 Difference]: Without dead ends: 28826 [2022-11-22 02:03:06,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:06,969 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 43 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:06,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 89 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 02:03:07,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28826 states. [2022-11-22 02:03:08,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28826 to 27309. [2022-11-22 02:03:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27309 states, 27245 states have (on average 3.938557533492384) internal successors, (107306), 27308 states have internal predecessors, (107306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27309 states to 27309 states and 107306 transitions. [2022-11-22 02:03:08,401 INFO L78 Accepts]: Start accepts. Automaton has 27309 states and 107306 transitions. Word has length 7 [2022-11-22 02:03:08,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:08,402 INFO L495 AbstractCegarLoop]: Abstraction has 27309 states and 107306 transitions. [2022-11-22 02:03:08,402 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 27309 states and 107306 transitions. [2022-11-22 02:03:08,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 02:03:08,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:08,403 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:08,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:03:08,404 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-11-22 02:03:08,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:08,404 INFO L85 PathProgramCache]: Analyzing trace with hash 1280459359, now seen corresponding path program 1 times [2022-11-22 02:03:08,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:08,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564874440] [2022-11-22 02:03:08,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:08,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:08,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:03:08,453 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:08,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564874440] [2022-11-22 02:03:08,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564874440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:08,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:08,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:03:08,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079562155] [2022-11-22 02:03:08,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:08,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:08,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:08,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:08,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:08,457 INFO L87 Difference]: Start difference. First operand 27309 states and 107306 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:09,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:09,235 INFO L93 Difference]: Finished difference Result 36801 states and 139148 transitions. [2022-11-22 02:03:09,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:09,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 02:03:09,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:09,477 INFO L225 Difference]: With dead ends: 36801 [2022-11-22 02:03:09,478 INFO L226 Difference]: Without dead ends: 36801 [2022-11-22 02:03:09,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:09,480 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 45 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:09,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 43 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:09,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36801 states. [2022-11-22 02:03:10,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36801 to 28033. [2022-11-22 02:03:10,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28033 states, 27977 states have (on average 3.8092719019194337) internal successors, (106572), 28032 states have internal predecessors, (106572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28033 states to 28033 states and 106572 transitions. [2022-11-22 02:03:10,854 INFO L78 Accepts]: Start accepts. Automaton has 28033 states and 106572 transitions. Word has length 9 [2022-11-22 02:03:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:10,854 INFO L495 AbstractCegarLoop]: Abstraction has 28033 states and 106572 transitions. [2022-11-22 02:03:10,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:10,854 INFO L276 IsEmpty]: Start isEmpty. Operand 28033 states and 106572 transitions. [2022-11-22 02:03:10,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-22 02:03:10,856 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:10,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:10,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:03:10,856 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-11-22 02:03:10,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:10,857 INFO L85 PathProgramCache]: Analyzing trace with hash 2092708118, now seen corresponding path program 1 times [2022-11-22 02:03:10,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:10,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796095952] [2022-11-22 02:03:10,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:10,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 02:03:10,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:10,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796095952] [2022-11-22 02:03:10,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796095952] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:10,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:10,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 02:03:10,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718563786] [2022-11-22 02:03:10,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:10,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:10,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:10,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:10,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:10,903 INFO L87 Difference]: Start difference. First operand 28033 states and 106572 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:11,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:11,201 INFO L93 Difference]: Finished difference Result 28778 states and 109213 transitions. [2022-11-22 02:03:11,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:11,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-22 02:03:11,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:11,329 INFO L225 Difference]: With dead ends: 28778 [2022-11-22 02:03:11,329 INFO L226 Difference]: Without dead ends: 28778 [2022-11-22 02:03:11,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:11,330 INFO L413 NwaCegarLoop]: 44 mSDtfsCounter, 36 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:11,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 54 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:11,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28778 states. [2022-11-22 02:03:12,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28778 to 28778. [2022-11-22 02:03:12,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28778 states, 28726 states have (on average 3.80188679245283) internal successors, (109213), 28777 states have internal predecessors, (109213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:12,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28778 states to 28778 states and 109213 transitions. [2022-11-22 02:03:12,781 INFO L78 Accepts]: Start accepts. Automaton has 28778 states and 109213 transitions. Word has length 13 [2022-11-22 02:03:12,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:12,781 INFO L495 AbstractCegarLoop]: Abstraction has 28778 states and 109213 transitions. [2022-11-22 02:03:12,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:12,782 INFO L276 IsEmpty]: Start isEmpty. Operand 28778 states and 109213 transitions. [2022-11-22 02:03:12,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:03:12,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:12,784 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:03:12,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:03:12,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-11-22 02:03:12,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:12,785 INFO L85 PathProgramCache]: Analyzing trace with hash -224104571, now seen corresponding path program 1 times [2022-11-22 02:03:12,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:12,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689124487] [2022-11-22 02:03:12,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:12,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:12,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 02:03:12,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:03:12,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689124487] [2022-11-22 02:03:12,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689124487] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:03:12,831 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:03:12,832 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:03:12,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489707935] [2022-11-22 02:03:12,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:03:12,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:03:12,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:03:12,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:03:12,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:12,833 INFO L87 Difference]: Start difference. First operand 28778 states and 109213 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:13,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:03:13,545 INFO L93 Difference]: Finished difference Result 31748 states and 120551 transitions. [2022-11-22 02:03:13,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:03:13,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-22 02:03:13,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:03:13,655 INFO L225 Difference]: With dead ends: 31748 [2022-11-22 02:03:13,655 INFO L226 Difference]: Without dead ends: 31748 [2022-11-22 02:03:13,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:03:13,656 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 42 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:03:13,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 89 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:03:13,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31748 states. [2022-11-22 02:03:14,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31748 to 30263. [2022-11-22 02:03:14,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30263 states, 30211 states have (on average 3.8026546622091293) internal successors, (114882), 30262 states have internal predecessors, (114882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:14,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30263 states to 30263 states and 114882 transitions. [2022-11-22 02:03:14,712 INFO L78 Accepts]: Start accepts. Automaton has 30263 states and 114882 transitions. Word has length 15 [2022-11-22 02:03:14,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:03:14,713 INFO L495 AbstractCegarLoop]: Abstraction has 30263 states and 114882 transitions. [2022-11-22 02:03:14,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 02:03:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 30263 states and 114882 transitions. [2022-11-22 02:03:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 02:03:14,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:03:14,714 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2022-11-22 02:03:14,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:03:14,714 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 29 more)] === [2022-11-22 02:03:14,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:03:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash 2009632288, now seen corresponding path program 1 times [2022-11-22 02:03:14,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:03:14,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063605968] [2022-11-22 02:03:14,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:03:14,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:03:14,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:03:14,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:03:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:03:14,770 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:03:14,773 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:03:14,773 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 33 remaining) [2022-11-22 02:03:14,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2022-11-22 02:03:14,773 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2022-11-22 02:03:14,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2022-11-22 02:03:14,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2022-11-22 02:03:14,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2022-11-22 02:03:14,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2022-11-22 02:03:14,774 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2022-11-22 02:03:14,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2022-11-22 02:03:14,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2022-11-22 02:03:14,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2022-11-22 02:03:14,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2022-11-22 02:03:14,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2022-11-22 02:03:14,775 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2022-11-22 02:03:14,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2022-11-22 02:03:14,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2022-11-22 02:03:14,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2022-11-22 02:03:14,776 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2022-11-22 02:03:14,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2022-11-22 02:03:14,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2022-11-22 02:03:14,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2022-11-22 02:03:14,777 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2022-11-22 02:03:14,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2022-11-22 02:03:14,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2022-11-22 02:03:14,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2022-11-22 02:03:14,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2022-11-22 02:03:14,778 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2022-11-22 02:03:14,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2022-11-22 02:03:14,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2022-11-22 02:03:14,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2022-11-22 02:03:14,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2022-11-22 02:03:14,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2022-11-22 02:03:14,779 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2022-11-22 02:03:14,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:03:14,780 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-22 02:03:14,780 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-22 02:03:14,781 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-22 02:03:14,823 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-22 02:03:14,827 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-22 02:03:14,827 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 289 places, 309 transitions, 650 flow [2022-11-22 02:03:14,828 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 289 places, 309 transitions, 650 flow [2022-11-22 02:03:14,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 289 places, 309 transitions, 650 flow [2022-11-22 02:03:14,917 INFO L130 PetriNetUnfolder]: 33/359 cut-off events. [2022-11-22 02:03:14,918 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-22 02:03:14,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 382 conditions, 359 events. 33/359 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1287 event pairs, 0 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 286. Up to 10 conditions per place. [2022-11-22 02:03:14,953 INFO L119 LiptonReduction]: Number of co-enabled transitions 62176 [2022-11-22 02:03:23,547 INFO L134 LiptonReduction]: Checked pairs total: 157726 [2022-11-22 02:03:23,548 INFO L136 LiptonReduction]: Total number of compositions: 287 [2022-11-22 02:03:23,549 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 103 places, 110 transitions, 252 flow