./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ace826ce717f8420bd44e3ebb10a0f5689c8f1d5dcaf8399a3f9b8d8dda146f --- 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 [2022-11-21 16:09:08,010 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:09:08,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:09:08,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:09:08,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:09:08,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:09:08,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:09:08,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:09:08,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:09:08,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:09:08,076 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:09:08,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:09:08,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:09:08,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:09:08,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:09:08,092 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:09:08,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:09:08,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:09:08,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:09:08,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:09:08,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:09:08,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:09:08,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:09:08,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:09:08,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:09:08,128 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:09:08,128 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:09:08,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:09:08,132 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:09:08,133 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:09:08,133 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:09:08,135 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:09:08,137 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:09:08,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:09:08,141 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:09:08,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:09:08,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:09:08,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:09:08,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:09:08,144 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:09:08,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:09:08,146 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:09:08,212 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:09:08,212 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:09:08,213 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:09:08,213 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:09:08,215 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:09:08,215 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:09:08,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:09:08,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:09:08,216 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:09:08,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:09:08,218 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:09:08,219 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:09:08,219 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:09:08,219 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:09:08,219 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:09:08,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:09:08,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:09:08,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:09:08,220 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:09:08,221 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:09:08,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:09:08,221 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:09:08,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:09:08,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:09:08,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:09:08,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:09:08,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:09:08,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:09:08,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:09:08,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:09:08,224 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:09:08,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:09:08,225 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:09:08,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:09:08,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:09:08,226 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_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ace826ce717f8420bd44e3ebb10a0f5689c8f1d5dcaf8399a3f9b8d8dda146f [2022-11-21 16:09:08,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:09:08,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:09:08,612 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:09:08,626 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:09:08,627 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:09:08,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i [2022-11-21 16:09:11,707 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:09:11,981 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:09:11,982 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i [2022-11-21 16:09:11,996 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/data/c60f3656d/b778cd714e5c41d488747834393ea393/FLAG73eeb4886 [2022-11-21 16:09:12,018 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/data/c60f3656d/b778cd714e5c41d488747834393ea393 [2022-11-21 16:09:12,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:09:12,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:09:12,025 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:09:12,025 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:09:12,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:09:12,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a1a4bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12, skipping insertion in model container [2022-11-21 16:09:12,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:09:12,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:09:12,617 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_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i[30438,30451] [2022-11-21 16:09:12,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:09:12,640 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:09:12,697 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_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/sv-benchmarks/c/pthread-ext/31_simple_loop5_vs.i[30438,30451] [2022-11-21 16:09:12,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:09:12,751 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:09:12,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12 WrapperNode [2022-11-21 16:09:12,752 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:09:12,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:09:12,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:09:12,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:09:12,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,834 INFO L138 Inliner]: procedures = 170, calls = 18, calls flagged for inlining = 8, calls inlined = 10, statements flattened = 135 [2022-11-21 16:09:12,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:09:12,836 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:09:12,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:09:12,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:09:12,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,872 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:09:12,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:09:12,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:09:12,878 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:09:12,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (1/1) ... [2022-11-21 16:09:12,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:09:12,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:09:12,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:09:12,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad7dfca1-85a2-4e78-8b0a-d1eafe4f694e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:09:12,978 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2022-11-21 16:09:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2022-11-21 16:09:12,979 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-21 16:09:12,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-21 16:09:12,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:09:12,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:09:12,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:09:12,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:09:12,985 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:09:13,133 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:09:13,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:09:13,537 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:09:13,655 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:09:13,656 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 16:09:13,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:09:13 BoogieIcfgContainer [2022-11-21 16:09:13,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:09:13,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:09:13,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:09:13,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:09:13,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:09:12" (1/3) ... [2022-11-21 16:09:13,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d147a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:09:13, skipping insertion in model container [2022-11-21 16:09:13,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:09:12" (2/3) ... [2022-11-21 16:09:13,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d147a84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:09:13, skipping insertion in model container [2022-11-21 16:09:13,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:09:13" (3/3) ... [2022-11-21 16:09:13,670 INFO L112 eAbstractionObserver]: Analyzing ICFG 31_simple_loop5_vs.i [2022-11-21 16:09:13,680 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:09:13,693 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:09:13,694 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-21 16:09:13,694 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:09:13,799 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:09:13,860 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 110 places, 110 transitions, 230 flow [2022-11-21 16:09:13,974 INFO L130 PetriNetUnfolder]: 7/120 cut-off events. [2022-11-21 16:09:13,977 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:09:13,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 120 events. 7/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 187 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 101. Up to 4 conditions per place. [2022-11-21 16:09:13,985 INFO L82 GeneralOperation]: Start removeDead. Operand has 110 places, 110 transitions, 230 flow [2022-11-21 16:09:13,992 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 109 places, 109 transitions, 226 flow [2022-11-21 16:09:14,019 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:09:14,029 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2642187, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:09:14,030 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2022-11-21 16:09:14,052 INFO L130 PetriNetUnfolder]: 2/30 cut-off events. [2022-11-21 16:09:14,052 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:09:14,052 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:14,053 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:14,054 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:14,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:14,062 INFO L85 PathProgramCache]: Analyzing trace with hash 536304118, now seen corresponding path program 1 times [2022-11-21 16:09:14,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:14,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163854523] [2022-11-21 16:09:14,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:14,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:14,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:14,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:14,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163854523] [2022-11-21 16:09:14,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163854523] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:14,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:14,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:09:14,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469447074] [2022-11-21 16:09:14,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:14,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:09:14,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:14,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:09:14,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:09:14,398 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 110 [2022-11-21 16:09:14,400 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 109 transitions, 226 flow. Second operand has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,401 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:14,401 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 110 [2022-11-21 16:09:14,402 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:14,457 INFO L130 PetriNetUnfolder]: 11/123 cut-off events. [2022-11-21 16:09:14,457 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-21 16:09:14,459 INFO L83 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 123 events. 11/123 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 183 event pairs, 4 based on Foata normal form. 25/128 useless extension candidates. Maximal degree in co-relation 126. Up to 22 conditions per place. [2022-11-21 16:09:14,460 INFO L137 encePairwiseOnDemand]: 95/110 looper letters, 6 selfloop transitions, 0 changer transitions 0/84 dead transitions. [2022-11-21 16:09:14,461 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 84 transitions, 188 flow [2022-11-21 16:09:14,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:09:14,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 16:09:14,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 197 transitions. [2022-11-21 16:09:14,474 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8954545454545455 [2022-11-21 16:09:14,475 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 197 transitions. [2022-11-21 16:09:14,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 197 transitions. [2022-11-21 16:09:14,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:14,480 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 197 transitions. [2022-11-21 16:09:14,482 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,487 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 110.0) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,489 INFO L175 Difference]: Start difference. First operand has 109 places, 109 transitions, 226 flow. Second operand 2 states and 197 transitions. [2022-11-21 16:09:14,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 84 transitions, 188 flow [2022-11-21 16:09:14,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 84 transitions, 187 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:09:14,495 INFO L231 Difference]: Finished difference. Result has 88 places, 84 transitions, 175 flow [2022-11-21 16:09:14,498 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=175, PETRI_PLACES=88, PETRI_TRANSITIONS=84} [2022-11-21 16:09:14,501 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -21 predicate places. [2022-11-21 16:09:14,502 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 84 transitions, 175 flow [2022-11-21 16:09:14,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 89.0) internal successors, (178), 2 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,502 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:14,502 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:14,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:09:14,503 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:14,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:14,504 INFO L85 PathProgramCache]: Analyzing trace with hash -7801095, now seen corresponding path program 1 times [2022-11-21 16:09:14,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:14,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987252390] [2022-11-21 16:09:14,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:14,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:14,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:14,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:14,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987252390] [2022-11-21 16:09:14,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987252390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:14,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:14,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:09:14,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219948604] [2022-11-21 16:09:14,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:14,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:09:14,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:14,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:09:14,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:09:14,598 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-11-21 16:09:14,598 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 84 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,599 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:14,599 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-11-21 16:09:14,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:14,794 INFO L130 PetriNetUnfolder]: 72/390 cut-off events. [2022-11-21 16:09:14,794 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-21 16:09:14,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 554 conditions, 390 events. 72/390 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1600 event pairs, 13 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 550. Up to 90 conditions per place. [2022-11-21 16:09:14,804 INFO L137 encePairwiseOnDemand]: 104/110 looper letters, 20 selfloop transitions, 4 changer transitions 0/93 dead transitions. [2022-11-21 16:09:14,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 93 transitions, 244 flow [2022-11-21 16:09:14,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:09:14,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:09:14,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2022-11-21 16:09:14,809 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.796969696969697 [2022-11-21 16:09:14,810 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2022-11-21 16:09:14,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2022-11-21 16:09:14,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:14,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2022-11-21 16:09:14,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,814 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,814 INFO L175 Difference]: Start difference. First operand has 88 places, 84 transitions, 175 flow. Second operand 3 states and 263 transitions. [2022-11-21 16:09:14,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 93 transitions, 244 flow [2022-11-21 16:09:14,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 93 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:09:14,817 INFO L231 Difference]: Finished difference. Result has 91 places, 86 transitions, 203 flow [2022-11-21 16:09:14,818 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=91, PETRI_TRANSITIONS=86} [2022-11-21 16:09:14,819 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -18 predicate places. [2022-11-21 16:09:14,819 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 86 transitions, 203 flow [2022-11-21 16:09:14,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,820 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:14,820 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:14,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:09:14,820 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:14,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:14,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1093098459, now seen corresponding path program 1 times [2022-11-21 16:09:14,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:14,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880570726] [2022-11-21 16:09:14,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:14,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:14,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:14,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880570726] [2022-11-21 16:09:14,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880570726] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:14,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:14,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:09:14,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29524353] [2022-11-21 16:09:14,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:14,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:09:14,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:14,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:09:14,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:09:14,889 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 110 [2022-11-21 16:09:14,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 86 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:14,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:14,890 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 110 [2022-11-21 16:09:14,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:15,041 INFO L130 PetriNetUnfolder]: 126/695 cut-off events. [2022-11-21 16:09:15,042 INFO L131 PetriNetUnfolder]: For 31/31 co-relation queries the response was YES. [2022-11-21 16:09:15,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1052 conditions, 695 events. 126/695 cut-off events. For 31/31 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 3687 event pairs, 30 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 1046. Up to 137 conditions per place. [2022-11-21 16:09:15,049 INFO L137 encePairwiseOnDemand]: 104/110 looper letters, 20 selfloop transitions, 4 changer transitions 0/95 dead transitions. [2022-11-21 16:09:15,049 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 95 transitions, 272 flow [2022-11-21 16:09:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:09:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:09:15,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 263 transitions. [2022-11-21 16:09:15,057 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.796969696969697 [2022-11-21 16:09:15,058 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 263 transitions. [2022-11-21 16:09:15,058 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 263 transitions. [2022-11-21 16:09:15,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:15,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 263 transitions. [2022-11-21 16:09:15,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,060 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 110.0) internal successors, (440), 4 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,060 INFO L175 Difference]: Start difference. First operand has 91 places, 86 transitions, 203 flow. Second operand 3 states and 263 transitions. [2022-11-21 16:09:15,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 95 transitions, 272 flow [2022-11-21 16:09:15,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 264 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:09:15,064 INFO L231 Difference]: Finished difference. Result has 92 places, 88 transitions, 223 flow [2022-11-21 16:09:15,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=110, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=223, PETRI_PLACES=92, PETRI_TRANSITIONS=88} [2022-11-21 16:09:15,065 INFO L288 CegarLoopForPetriNet]: 109 programPoint places, -17 predicate places. [2022-11-21 16:09:15,065 INFO L495 AbstractCegarLoop]: Abstraction has has 92 places, 88 transitions, 223 flow [2022-11-21 16:09:15,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,066 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:15,066 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:15,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:09:15,067 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2022-11-21 16:09:15,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:15,067 INFO L85 PathProgramCache]: Analyzing trace with hash -736003309, now seen corresponding path program 1 times [2022-11-21 16:09:15,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:15,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737967170] [2022-11-21 16:09:15,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:15,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:09:15,129 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:09:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:09:15,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:09:15,195 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:09:15,196 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2022-11-21 16:09:15,198 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2022-11-21 16:09:15,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2022-11-21 16:09:15,200 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2022-11-21 16:09:15,205 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2022-11-21 16:09:15,206 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2022-11-21 16:09:15,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2022-11-21 16:09:15,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2022-11-21 16:09:15,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2022-11-21 16:09:15,208 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2022-11-21 16:09:15,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2022-11-21 16:09:15,209 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2022-11-21 16:09:15,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2022-11-21 16:09:15,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2022-11-21 16:09:15,210 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2022-11-21 16:09:15,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2022-11-21 16:09:15,211 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2022-11-21 16:09:15,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2022-11-21 16:09:15,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2022-11-21 16:09:15,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 38 remaining) [2022-11-21 16:09:15,212 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2022-11-21 16:09:15,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2022-11-21 16:09:15,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2022-11-21 16:09:15,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2022-11-21 16:09:15,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2022-11-21 16:09:15,214 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2022-11-21 16:09:15,215 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2022-11-21 16:09:15,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2022-11-21 16:09:15,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2022-11-21 16:09:15,219 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2022-11-21 16:09:15,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2022-11-21 16:09:15,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2022-11-21 16:09:15,220 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2022-11-21 16:09:15,221 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2022-11-21 16:09:15,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2022-11-21 16:09:15,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2022-11-21 16:09:15,228 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2022-11-21 16:09:15,231 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2022-11-21 16:09:15,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:09:15,232 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-21 16:09:15,234 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-21 16:09:15,234 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-21 16:09:15,287 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:09:15,296 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 181 places, 182 transitions, 388 flow [2022-11-21 16:09:15,328 INFO L130 PetriNetUnfolder]: 10/182 cut-off events. [2022-11-21 16:09:15,329 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:09:15,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 182 events. 10/182 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 398 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 191. Up to 6 conditions per place. [2022-11-21 16:09:15,332 INFO L82 GeneralOperation]: Start removeDead. Operand has 181 places, 182 transitions, 388 flow [2022-11-21 16:09:15,336 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 158 places, 158 transitions, 331 flow [2022-11-21 16:09:15,344 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:09:15,346 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2642187, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:09:15,346 INFO L358 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2022-11-21 16:09:15,350 INFO L130 PetriNetUnfolder]: 2/30 cut-off events. [2022-11-21 16:09:15,350 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:09:15,350 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:15,351 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:15,351 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-21 16:09:15,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:15,352 INFO L85 PathProgramCache]: Analyzing trace with hash 440322613, now seen corresponding path program 1 times [2022-11-21 16:09:15,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:15,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271888385] [2022-11-21 16:09:15,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:15,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:15,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:15,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:15,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271888385] [2022-11-21 16:09:15,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271888385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:15,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:15,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:09:15,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808296001] [2022-11-21 16:09:15,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:15,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:09:15,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:15,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:09:15,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:09:15,413 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 182 [2022-11-21 16:09:15,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 158 transitions, 331 flow. Second operand has 2 states, 2 states have (on average 141.0) internal successors, (282), 2 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:15,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 182 [2022-11-21 16:09:15,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:15,659 INFO L130 PetriNetUnfolder]: 71/571 cut-off events. [2022-11-21 16:09:15,659 INFO L131 PetriNetUnfolder]: For 28/28 co-relation queries the response was YES. [2022-11-21 16:09:15,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 571 events. 71/571 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2743 event pairs, 37 based on Foata normal form. 109/572 useless extension candidates. Maximal degree in co-relation 685. Up to 108 conditions per place. [2022-11-21 16:09:15,667 INFO L137 encePairwiseOnDemand]: 161/182 looper letters, 9 selfloop transitions, 0 changer transitions 0/125 dead transitions. [2022-11-21 16:09:15,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 125 transitions, 283 flow [2022-11-21 16:09:15,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:09:15,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 16:09:15,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 310 transitions. [2022-11-21 16:09:15,670 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8516483516483516 [2022-11-21 16:09:15,670 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 310 transitions. [2022-11-21 16:09:15,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 310 transitions. [2022-11-21 16:09:15,671 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:15,671 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 310 transitions. [2022-11-21 16:09:15,672 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 155.0) internal successors, (310), 2 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,675 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,675 INFO L175 Difference]: Start difference. First operand has 158 places, 158 transitions, 331 flow. Second operand 2 states and 310 transitions. [2022-11-21 16:09:15,675 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 125 transitions, 283 flow [2022-11-21 16:09:15,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 125 transitions, 280 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-11-21 16:09:15,680 INFO L231 Difference]: Finished difference. Result has 130 places, 125 transitions, 262 flow [2022-11-21 16:09:15,680 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=262, PETRI_PLACES=130, PETRI_TRANSITIONS=125} [2022-11-21 16:09:15,681 INFO L288 CegarLoopForPetriNet]: 158 programPoint places, -28 predicate places. [2022-11-21 16:09:15,681 INFO L495 AbstractCegarLoop]: Abstraction has has 130 places, 125 transitions, 262 flow [2022-11-21 16:09:15,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 141.0) internal successors, (282), 2 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,682 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:15,682 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:15,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:09:15,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-21 16:09:15,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:15,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2051706824, now seen corresponding path program 1 times [2022-11-21 16:09:15,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:15,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321115521] [2022-11-21 16:09:15,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:15,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:15,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:15,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321115521] [2022-11-21 16:09:15,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321115521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:15,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:15,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:09:15,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857058293] [2022-11-21 16:09:15,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:15,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:09:15,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:15,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:09:15,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:09:15,731 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 182 [2022-11-21 16:09:15,732 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 125 transitions, 262 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:15,732 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:15,732 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 182 [2022-11-21 16:09:15,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:16,642 INFO L130 PetriNetUnfolder]: 1569/5444 cut-off events. [2022-11-21 16:09:16,643 INFO L131 PetriNetUnfolder]: For 204/204 co-relation queries the response was YES. [2022-11-21 16:09:16,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8070 conditions, 5444 events. 1569/5444 cut-off events. For 204/204 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 50719 event pairs, 453 based on Foata normal form. 0/4384 useless extension candidates. Maximal degree in co-relation 8065. Up to 1337 conditions per place. [2022-11-21 16:09:16,701 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 8 changer transitions 0/145 dead transitions. [2022-11-21 16:09:16,701 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 145 transitions, 398 flow [2022-11-21 16:09:16,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:09:16,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:09:16,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2022-11-21 16:09:16,704 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2022-11-21 16:09:16,704 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2022-11-21 16:09:16,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2022-11-21 16:09:16,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:16,705 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2022-11-21 16:09:16,706 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:16,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:16,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:16,710 INFO L175 Difference]: Start difference. First operand has 130 places, 125 transitions, 262 flow. Second operand 3 states and 413 transitions. [2022-11-21 16:09:16,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 145 transitions, 398 flow [2022-11-21 16:09:16,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 145 transitions, 398 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:09:16,714 INFO L231 Difference]: Finished difference. Result has 134 places, 133 transitions, 332 flow [2022-11-21 16:09:16,714 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=134, PETRI_TRANSITIONS=133} [2022-11-21 16:09:16,718 INFO L288 CegarLoopForPetriNet]: 158 programPoint places, -24 predicate places. [2022-11-21 16:09:16,721 INFO L495 AbstractCegarLoop]: Abstraction has has 134 places, 133 transitions, 332 flow [2022-11-21 16:09:16,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:16,722 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:16,723 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:16,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:09:16,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-21 16:09:16,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash -300245478, now seen corresponding path program 1 times [2022-11-21 16:09:16,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:16,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685073113] [2022-11-21 16:09:16,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:16,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:16,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:16,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:16,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685073113] [2022-11-21 16:09:16,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685073113] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:16,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:16,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:09:16,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325770879] [2022-11-21 16:09:16,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:16,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:09:16,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:16,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:09:16,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:09:16,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 182 [2022-11-21 16:09:16,785 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 133 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:16,785 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:16,785 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 182 [2022-11-21 16:09:16,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:19,225 INFO L130 PetriNetUnfolder]: 4521/14546 cut-off events. [2022-11-21 16:09:19,226 INFO L131 PetriNetUnfolder]: For 912/915 co-relation queries the response was YES. [2022-11-21 16:09:19,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23500 conditions, 14546 events. 4521/14546 cut-off events. For 912/915 co-relation queries the response was YES. Maximal size of possible extension queue 521. Compared 162131 event pairs, 1239 based on Foata normal form. 0/11752 useless extension candidates. Maximal degree in co-relation 23493. Up to 3532 conditions per place. [2022-11-21 16:09:19,424 INFO L137 encePairwiseOnDemand]: 171/182 looper letters, 36 selfloop transitions, 8 changer transitions 0/153 dead transitions. [2022-11-21 16:09:19,425 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 153 transitions, 468 flow [2022-11-21 16:09:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:09:19,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:09:19,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 413 transitions. [2022-11-21 16:09:19,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7564102564102564 [2022-11-21 16:09:19,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 413 transitions. [2022-11-21 16:09:19,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 413 transitions. [2022-11-21 16:09:19,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:19,429 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 413 transitions. [2022-11-21 16:09:19,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 137.66666666666666) internal successors, (413), 3 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:19,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:19,433 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:19,433 INFO L175 Difference]: Start difference. First operand has 134 places, 133 transitions, 332 flow. Second operand 3 states and 413 transitions. [2022-11-21 16:09:19,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 153 transitions, 468 flow [2022-11-21 16:09:19,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 153 transitions, 452 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:09:19,446 INFO L231 Difference]: Finished difference. Result has 136 places, 141 transitions, 386 flow [2022-11-21 16:09:19,447 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=136, PETRI_TRANSITIONS=141} [2022-11-21 16:09:19,448 INFO L288 CegarLoopForPetriNet]: 158 programPoint places, -22 predicate places. [2022-11-21 16:09:19,448 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 141 transitions, 386 flow [2022-11-21 16:09:19,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:19,449 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:19,449 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:19,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:09:19,449 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-21 16:09:19,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:19,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1726090235, now seen corresponding path program 1 times [2022-11-21 16:09:19,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:19,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738018909] [2022-11-21 16:09:19,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:19,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:19,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:19,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:19,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738018909] [2022-11-21 16:09:19,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738018909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:19,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:19,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:09:19,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190449601] [2022-11-21 16:09:19,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:19,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:09:19,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:19,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:09:19,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:09:19,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 182 [2022-11-21 16:09:19,510 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 141 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:19,510 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:19,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 182 [2022-11-21 16:09:19,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:21,550 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 101#L707true, 132#L730-4true, 74#L708-5true, thr1Thread1of2ForFork1InUse, Black: 193#true, 195#(= |#race~b~0| 0), 199#true, 184#true, 126#L720-2true, Black: 189#(= |#race~a~0| 0)]) [2022-11-21 16:09:21,550 INFO L383 tUnfolder$Statistics]: this new event has 92 ancestors and is cut-off event [2022-11-21 16:09:21,551 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-21 16:09:21,551 INFO L386 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event [2022-11-21 16:09:21,551 INFO L386 tUnfolder$Statistics]: existing Event has 61 ancestors and is cut-off event [2022-11-21 16:09:21,551 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 101#L707true, 132#L730-4true, 74#L708-5true, thr1Thread1of2ForFork1InUse, 195#(= |#race~b~0| 0), Black: 193#true, 199#true, 7#L720-3true, 184#true, Black: 189#(= |#race~a~0| 0)]) [2022-11-21 16:09:21,551 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-21 16:09:21,551 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-21 16:09:21,552 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-21 16:09:21,552 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-21 16:09:21,606 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 132#L730-4true, 74#L708-5true, thr1Thread1of2ForFork1InUse, Black: 193#true, 195#(= |#race~b~0| 0), 199#true, 184#true, 173#L707-1true, 126#L720-2true, Black: 189#(= |#race~a~0| 0)]) [2022-11-21 16:09:21,606 INFO L383 tUnfolder$Statistics]: this new event has 93 ancestors and is cut-off event [2022-11-21 16:09:21,607 INFO L386 tUnfolder$Statistics]: existing Event has 70 ancestors and is cut-off event [2022-11-21 16:09:21,607 INFO L386 tUnfolder$Statistics]: existing Event has 62 ancestors and is cut-off event [2022-11-21 16:09:21,607 INFO L386 tUnfolder$Statistics]: existing Event has 93 ancestors and is cut-off event [2022-11-21 16:09:21,607 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([620] L708-4-->L708-5: Formula: (= |v_thr2Thread2of2ForFork0_#t~nondet6#1_3| |v_#race~a~0_4|) InVars {thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} OutVars{#race~a~0=|v_#race~a~0_4|, thr2Thread2of2ForFork0_#t~nondet6#1=|v_thr2Thread2of2ForFork0_#t~nondet6#1_3|} AuxVars[] AssignedVars[#race~a~0][93], [thr2Thread1of2ForFork0InUse, thr2Thread2of2ForFork0InUse, 132#L730-4true, 74#L708-5true, thr1Thread1of2ForFork1InUse, 195#(= |#race~b~0| 0), Black: 193#true, 199#true, 7#L720-3true, 184#true, 173#L707-1true, Black: 189#(= |#race~a~0| 0)]) [2022-11-21 16:09:21,607 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-21 16:09:21,608 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-21 16:09:21,608 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-21 16:09:21,608 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-21 16:09:22,465 INFO L130 PetriNetUnfolder]: 5661/18564 cut-off events. [2022-11-21 16:09:22,465 INFO L131 PetriNetUnfolder]: For 983/986 co-relation queries the response was YES. [2022-11-21 16:09:22,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30805 conditions, 18564 events. 5661/18564 cut-off events. For 983/986 co-relation queries the response was YES. Maximal size of possible extension queue 650. Compared 213854 event pairs, 2860 based on Foata normal form. 0/15358 useless extension candidates. Maximal degree in co-relation 30797. Up to 6564 conditions per place. [2022-11-21 16:09:22,669 INFO L137 encePairwiseOnDemand]: 176/182 looper letters, 31 selfloop transitions, 5 changer transitions 0/154 dead transitions. [2022-11-21 16:09:22,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 154 transitions, 489 flow [2022-11-21 16:09:22,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:09:22,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:09:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 415 transitions. [2022-11-21 16:09:22,672 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.76007326007326 [2022-11-21 16:09:22,672 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 415 transitions. [2022-11-21 16:09:22,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 415 transitions. [2022-11-21 16:09:22,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:22,673 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 415 transitions. [2022-11-21 16:09:22,675 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 138.33333333333334) internal successors, (415), 3 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:22,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:22,679 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 182.0) internal successors, (728), 4 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:22,679 INFO L175 Difference]: Start difference. First operand has 136 places, 141 transitions, 386 flow. Second operand 3 states and 415 transitions. [2022-11-21 16:09:22,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 154 transitions, 489 flow [2022-11-21 16:09:22,692 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 154 transitions, 473 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:09:22,695 INFO L231 Difference]: Finished difference. Result has 138 places, 145 transitions, 408 flow [2022-11-21 16:09:22,695 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=182, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=138, PETRI_TRANSITIONS=145} [2022-11-21 16:09:22,697 INFO L288 CegarLoopForPetriNet]: 158 programPoint places, -20 predicate places. [2022-11-21 16:09:22,697 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 145 transitions, 408 flow [2022-11-21 16:09:22,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:22,698 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:22,698 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:22,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:09:22,699 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 52 more)] === [2022-11-21 16:09:22,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:22,699 INFO L85 PathProgramCache]: Analyzing trace with hash -376935674, now seen corresponding path program 1 times [2022-11-21 16:09:22,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:22,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538780335] [2022-11-21 16:09:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:22,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:09:22,902 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:09:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:09:22,928 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:09:22,929 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:09:22,929 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 56 remaining) [2022-11-21 16:09:22,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (54 of 56 remaining) [2022-11-21 16:09:22,929 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (53 of 56 remaining) [2022-11-21 16:09:22,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (52 of 56 remaining) [2022-11-21 16:09:22,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (51 of 56 remaining) [2022-11-21 16:09:22,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (50 of 56 remaining) [2022-11-21 16:09:22,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (49 of 56 remaining) [2022-11-21 16:09:22,930 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (48 of 56 remaining) [2022-11-21 16:09:22,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (47 of 56 remaining) [2022-11-21 16:09:22,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (46 of 56 remaining) [2022-11-21 16:09:22,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (45 of 56 remaining) [2022-11-21 16:09:22,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (44 of 56 remaining) [2022-11-21 16:09:22,931 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (43 of 56 remaining) [2022-11-21 16:09:22,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (42 of 56 remaining) [2022-11-21 16:09:22,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (41 of 56 remaining) [2022-11-21 16:09:22,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (40 of 56 remaining) [2022-11-21 16:09:22,932 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (39 of 56 remaining) [2022-11-21 16:09:22,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (38 of 56 remaining) [2022-11-21 16:09:22,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (37 of 56 remaining) [2022-11-21 16:09:22,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 56 remaining) [2022-11-21 16:09:22,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (35 of 56 remaining) [2022-11-21 16:09:22,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (34 of 56 remaining) [2022-11-21 16:09:22,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (33 of 56 remaining) [2022-11-21 16:09:22,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (32 of 56 remaining) [2022-11-21 16:09:22,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (31 of 56 remaining) [2022-11-21 16:09:22,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (30 of 56 remaining) [2022-11-21 16:09:22,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (29 of 56 remaining) [2022-11-21 16:09:22,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (28 of 56 remaining) [2022-11-21 16:09:22,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (27 of 56 remaining) [2022-11-21 16:09:22,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (26 of 56 remaining) [2022-11-21 16:09:22,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (25 of 56 remaining) [2022-11-21 16:09:22,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (24 of 56 remaining) [2022-11-21 16:09:22,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (23 of 56 remaining) [2022-11-21 16:09:22,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (22 of 56 remaining) [2022-11-21 16:09:22,936 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (21 of 56 remaining) [2022-11-21 16:09:22,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (20 of 56 remaining) [2022-11-21 16:09:22,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (19 of 56 remaining) [2022-11-21 16:09:22,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (18 of 56 remaining) [2022-11-21 16:09:22,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (17 of 56 remaining) [2022-11-21 16:09:22,937 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (16 of 56 remaining) [2022-11-21 16:09:22,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (15 of 56 remaining) [2022-11-21 16:09:22,938 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (14 of 56 remaining) [2022-11-21 16:09:22,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err10ASSERT_VIOLATIONDATA_RACE (13 of 56 remaining) [2022-11-21 16:09:22,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err11ASSERT_VIOLATIONDATA_RACE (12 of 56 remaining) [2022-11-21 16:09:22,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 56 remaining) [2022-11-21 16:09:22,939 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 56 remaining) [2022-11-21 16:09:22,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (9 of 56 remaining) [2022-11-21 16:09:22,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (8 of 56 remaining) [2022-11-21 16:09:22,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (7 of 56 remaining) [2022-11-21 16:09:22,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (6 of 56 remaining) [2022-11-21 16:09:22,940 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 56 remaining) [2022-11-21 16:09:22,941 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (4 of 56 remaining) [2022-11-21 16:09:22,941 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (3 of 56 remaining) [2022-11-21 16:09:22,941 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 56 remaining) [2022-11-21 16:09:22,941 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (1 of 56 remaining) [2022-11-21 16:09:22,941 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (0 of 56 remaining) [2022-11-21 16:09:22,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:09:22,942 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-21 16:09:22,949 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-21 16:09:22,949 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-21 16:09:23,007 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:09:23,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 252 places, 254 transitions, 550 flow [2022-11-21 16:09:23,046 INFO L130 PetriNetUnfolder]: 13/244 cut-off events. [2022-11-21 16:09:23,046 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-21 16:09:23,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 265 conditions, 244 events. 13/244 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 668 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 258. Up to 8 conditions per place. [2022-11-21 16:09:23,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 252 places, 254 transitions, 550 flow [2022-11-21 16:09:23,054 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 207 transitions, 438 flow [2022-11-21 16:09:23,055 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:09:23,055 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2642187, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:09:23,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2022-11-21 16:09:23,060 INFO L130 PetriNetUnfolder]: 2/32 cut-off events. [2022-11-21 16:09:23,060 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:09:23,060 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:23,060 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:23,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:09:23,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:23,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1299176430, now seen corresponding path program 1 times [2022-11-21 16:09:23,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:23,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198738364] [2022-11-21 16:09:23,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:23,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:23,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:23,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198738364] [2022-11-21 16:09:23,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198738364] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:23,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:23,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:09:23,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938172865] [2022-11-21 16:09:23,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:23,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:09:23,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:23,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:09:23,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:09:23,097 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 254 [2022-11-21 16:09:23,098 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 207 transitions, 438 flow. Second operand has 2 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:23,098 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:23,098 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 254 [2022-11-21 16:09:23,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:23,444 INFO L130 PetriNetUnfolder]: 337/2208 cut-off events. [2022-11-21 16:09:23,444 INFO L131 PetriNetUnfolder]: For 186/186 co-relation queries the response was YES. [2022-11-21 16:09:23,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2804 conditions, 2208 events. 337/2208 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 17127 event pairs, 195 based on Foata normal form. 424/2218 useless extension candidates. Maximal degree in co-relation 2773. Up to 454 conditions per place. [2022-11-21 16:09:23,482 INFO L137 encePairwiseOnDemand]: 227/254 looper letters, 12 selfloop transitions, 0 changer transitions 0/166 dead transitions. [2022-11-21 16:09:23,483 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 166 transitions, 380 flow [2022-11-21 16:09:23,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:09:23,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-21 16:09:23,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 423 transitions. [2022-11-21 16:09:23,485 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8326771653543307 [2022-11-21 16:09:23,485 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 423 transitions. [2022-11-21 16:09:23,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 423 transitions. [2022-11-21 16:09:23,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:23,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 423 transitions. [2022-11-21 16:09:23,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 211.5) internal successors, (423), 2 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:23,488 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:23,490 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:23,491 INFO L175 Difference]: Start difference. First operand has 207 places, 207 transitions, 438 flow. Second operand 2 states and 423 transitions. [2022-11-21 16:09:23,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 166 transitions, 380 flow [2022-11-21 16:09:23,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 166 transitions, 373 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-11-21 16:09:23,495 INFO L231 Difference]: Finished difference. Result has 172 places, 166 transitions, 349 flow [2022-11-21 16:09:23,495 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=349, PETRI_PLACES=172, PETRI_TRANSITIONS=166} [2022-11-21 16:09:23,497 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, -35 predicate places. [2022-11-21 16:09:23,498 INFO L495 AbstractCegarLoop]: Abstraction has has 172 places, 166 transitions, 349 flow [2022-11-21 16:09:23,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 193.0) internal successors, (386), 2 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:23,498 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:23,498 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:23,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:09:23,499 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:09:23,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:23,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1326968661, now seen corresponding path program 1 times [2022-11-21 16:09:23,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:23,500 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169291009] [2022-11-21 16:09:23,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:23,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:23,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:23,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:23,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169291009] [2022-11-21 16:09:23,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169291009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:23,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:23,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:09:23,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239347067] [2022-11-21 16:09:23,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:23,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:09:23,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:23,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:09:23,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:09:23,570 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 254 [2022-11-21 16:09:23,571 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 166 transitions, 349 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:23,571 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:23,571 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 254 [2022-11-21 16:09:23,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:31,361 INFO L130 PetriNetUnfolder]: 23694/66111 cut-off events. [2022-11-21 16:09:31,361 INFO L131 PetriNetUnfolder]: For 2496/2496 co-relation queries the response was YES. [2022-11-21 16:09:31,777 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100803 conditions, 66111 events. 23694/66111 cut-off events. For 2496/2496 co-relation queries the response was YES. Maximal size of possible extension queue 1898. Compared 864665 event pairs, 7129 based on Foata normal form. 0/52956 useless extension candidates. Maximal degree in co-relation 100797. Up to 17233 conditions per place. [2022-11-21 16:09:32,385 INFO L137 encePairwiseOnDemand]: 239/254 looper letters, 50 selfloop transitions, 11 changer transitions 0/194 dead transitions. [2022-11-21 16:09:32,385 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 194 transitions, 540 flow [2022-11-21 16:09:32,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:09:32,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:09:32,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 560 transitions. [2022-11-21 16:09:32,388 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7349081364829396 [2022-11-21 16:09:32,388 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 560 transitions. [2022-11-21 16:09:32,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 560 transitions. [2022-11-21 16:09:32,389 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:09:32,389 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 560 transitions. [2022-11-21 16:09:32,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:32,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:32,393 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 254.0) internal successors, (1016), 4 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:32,393 INFO L175 Difference]: Start difference. First operand has 172 places, 166 transitions, 349 flow. Second operand 3 states and 560 transitions. [2022-11-21 16:09:32,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 194 transitions, 540 flow [2022-11-21 16:09:32,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 174 places, 194 transitions, 540 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:09:32,398 INFO L231 Difference]: Finished difference. Result has 176 places, 177 transitions, 445 flow [2022-11-21 16:09:32,399 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=254, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=445, PETRI_PLACES=176, PETRI_TRANSITIONS=177} [2022-11-21 16:09:32,399 INFO L288 CegarLoopForPetriNet]: 207 programPoint places, -31 predicate places. [2022-11-21 16:09:32,400 INFO L495 AbstractCegarLoop]: Abstraction has has 176 places, 177 transitions, 445 flow [2022-11-21 16:09:32,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:32,400 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:09:32,400 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:09:32,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:09:32,401 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err3ASSERT_VIOLATIONDATA_RACE (and 70 more)] === [2022-11-21 16:09:32,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:09:32,402 INFO L85 PathProgramCache]: Analyzing trace with hash -388369801, now seen corresponding path program 1 times [2022-11-21 16:09:32,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:09:32,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060864634] [2022-11-21 16:09:32,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:09:32,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:09:32,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:09:32,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:09:32,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:09:32,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060864634] [2022-11-21 16:09:32,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060864634] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:09:32,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:09:32,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:09:32,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973259810] [2022-11-21 16:09:32,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:09:32,458 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:09:32,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:09:32,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:09:32,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:09:32,460 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 165 out of 254 [2022-11-21 16:09:32,461 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 177 transitions, 445 flow. Second operand has 3 states, 3 states have (on average 166.33333333333334) internal successors, (499), 3 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:09:32,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:09:32,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 165 of 254 [2022-11-21 16:09:32,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:09:43,790 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, Black: 258#true, 192#L720-2true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 90#thr2ENTRYtrue, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:43,790 INFO L383 tUnfolder$Statistics]: this new event has 94 ancestors and is cut-off event [2022-11-21 16:09:43,790 INFO L386 tUnfolder$Statistics]: existing Event has 63 ancestors and is cut-off event [2022-11-21 16:09:43,790 INFO L386 tUnfolder$Statistics]: existing Event has 94 ancestors and is cut-off event [2022-11-21 16:09:43,791 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-21 16:09:43,791 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 150#L720-3true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 90#thr2ENTRYtrue, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:43,791 INFO L383 tUnfolder$Statistics]: this new event has 95 ancestors and is cut-off event [2022-11-21 16:09:43,791 INFO L386 tUnfolder$Statistics]: existing Event has 64 ancestors and is cut-off event [2022-11-21 16:09:43,791 INFO L386 tUnfolder$Statistics]: existing Event has 72 ancestors and is cut-off event [2022-11-21 16:09:43,791 INFO L386 tUnfolder$Statistics]: existing Event has 95 ancestors and is cut-off event [2022-11-21 16:09:43,791 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 90#thr2ENTRYtrue, 255#true, thr2Thread1of3ForFork0InUse, 98#L721-1true, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:43,791 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-21 16:09:43,791 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-21 16:09:43,791 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 16:09:43,792 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-21 16:09:44,460 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 113#L719-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 90#thr2ENTRYtrue, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:44,461 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-21 16:09:44,461 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-21 16:09:44,461 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-21 16:09:44,461 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-21 16:09:46,403 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 114#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 150#L720-3true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:46,403 INFO L383 tUnfolder$Statistics]: this new event has 98 ancestors and is cut-off event [2022-11-21 16:09:46,403 INFO L386 tUnfolder$Statistics]: existing Event has 67 ancestors and is cut-off event [2022-11-21 16:09:46,403 INFO L386 tUnfolder$Statistics]: existing Event has 98 ancestors and is cut-off event [2022-11-21 16:09:46,403 INFO L386 tUnfolder$Statistics]: existing Event has 75 ancestors and is cut-off event [2022-11-21 16:09:46,403 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 114#L706-2true, Black: 258#true, 192#L720-2true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:46,404 INFO L383 tUnfolder$Statistics]: this new event has 97 ancestors and is cut-off event [2022-11-21 16:09:46,404 INFO L386 tUnfolder$Statistics]: existing Event has 97 ancestors and is cut-off event [2022-11-21 16:09:46,404 INFO L386 tUnfolder$Statistics]: existing Event has 66 ancestors and is cut-off event [2022-11-21 16:09:46,404 INFO L386 tUnfolder$Statistics]: existing Event has 74 ancestors and is cut-off event [2022-11-21 16:09:46,404 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 114#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 98#L721-1true, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:46,405 INFO L383 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-11-21 16:09:46,405 INFO L386 tUnfolder$Statistics]: existing Event has 77 ancestors and is cut-off event [2022-11-21 16:09:46,406 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-21 16:09:46,406 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-21 16:09:46,867 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([869] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][82], [139#L706-2true, 113#L719-2true, 114#L706-2true, Black: 258#true, 266#(= |#race~b~0| 0), 54#L708-1true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:46,867 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 16:09:46,868 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 16:09:46,868 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-21 16:09:46,868 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-21 16:09:48,363 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [139#L706-2true, 113#L719-2true, 99#L707-1true, Black: 258#true, 266#(= |#race~b~0| 0), 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:48,363 INFO L383 tUnfolder$Statistics]: this new event has 104 ancestors and is cut-off event [2022-11-21 16:09:48,363 INFO L386 tUnfolder$Statistics]: existing Event has 104 ancestors and is cut-off event [2022-11-21 16:09:48,363 INFO L386 tUnfolder$Statistics]: existing Event has 81 ancestors and is cut-off event [2022-11-21 16:09:48,363 INFO L386 tUnfolder$Statistics]: existing Event has 73 ancestors and is cut-off event [2022-11-21 16:09:48,364 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [139#L706-2true, 99#L707-1true, Black: 258#true, 266#(= |#race~b~0| 0), 150#L720-3true, 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:48,364 INFO L383 tUnfolder$Statistics]: this new event has 100 ancestors and is cut-off event [2022-11-21 16:09:48,364 INFO L386 tUnfolder$Statistics]: existing Event has 77 ancestors and is cut-off event [2022-11-21 16:09:48,364 INFO L386 tUnfolder$Statistics]: existing Event has 100 ancestors and is cut-off event [2022-11-21 16:09:48,364 INFO L386 tUnfolder$Statistics]: existing Event has 69 ancestors and is cut-off event [2022-11-21 16:09:48,365 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [139#L706-2true, 99#L707-1true, Black: 258#true, 192#L720-2true, 266#(= |#race~b~0| 0), 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:48,365 INFO L383 tUnfolder$Statistics]: this new event has 99 ancestors and is cut-off event [2022-11-21 16:09:48,365 INFO L386 tUnfolder$Statistics]: existing Event has 76 ancestors and is cut-off event [2022-11-21 16:09:48,365 INFO L386 tUnfolder$Statistics]: existing Event has 68 ancestors and is cut-off event [2022-11-21 16:09:48,365 INFO L386 tUnfolder$Statistics]: existing Event has 99 ancestors and is cut-off event [2022-11-21 16:09:48,365 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [139#L706-2true, 99#L707-1true, Black: 258#true, 266#(= |#race~b~0| 0), 260#(= |#race~a~0| 0), thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 98#L721-1true, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:09:48,366 INFO L383 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-11-21 16:09:48,366 INFO L386 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-11-21 16:09:48,366 INFO L386 tUnfolder$Statistics]: existing Event has 79 ancestors and is cut-off event [2022-11-21 16:09:48,366 INFO L386 tUnfolder$Statistics]: existing Event has 71 ancestors and is cut-off event [2022-11-21 16:10:00,913 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([965] L708-->L708-1: Formula: (= |v_#race~b~0_1| 0) InVars {} OutVars{#race~b~0=|v_#race~b~0_1|} AuxVars[] AssignedVars[#race~b~0][144], [113#L719-2true, Black: 258#true, 266#(= |#race~b~0| 0), 260#(= |#race~a~0| 0), 183#L708-2true, 124#L708-5true, thr1Thread1of3ForFork1InUse, 255#true, thr2Thread1of3ForFork0InUse, 93#L730-4true, thr2Thread2of3ForFork0InUse, 176#L708-1true, thr2Thread3of3ForFork0InUse]) [2022-11-21 16:10:00,913 INFO L383 tUnfolder$Statistics]: this new event has 115 ancestors and is cut-off event [2022-11-21 16:10:00,913 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-21 16:10:00,913 INFO L386 tUnfolder$Statistics]: existing Event has 84 ancestors and is cut-off event [2022-11-21 16:10:00,913 INFO L386 tUnfolder$Statistics]: existing Event has 92 ancestors and is cut-off event