./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/queue.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/queue.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:35:48,773 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:35:48,844 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:35:48,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:35:48,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:35:48,875 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:35:48,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:35:48,876 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:35:48,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:35:48,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:35:48,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:35:48,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:35:48,892 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:35:48,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:35:48,894 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:35:48,894 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:35:48,895 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:35:48,895 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:35:48,896 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:35:48,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:35:48,897 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:35:48,900 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:35:48,900 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:35:48,901 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:35:48,901 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:35:48,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:35:48,902 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:35:48,903 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:35:48,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:35:48,904 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:35:48,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:48,906 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:35:48,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:35:48,907 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:35:48,907 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:35:48,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:35:48,907 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:35:48,908 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:35:48,908 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:35:48,908 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:35:48,909 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:35:48,909 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d771c5dc4ab027f123135a7de4324b9be0c6bae288f44d0eaffc15d1836bd60 [2023-11-23 22:35:49,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:35:49,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:35:49,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:35:49,298 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:35:49,299 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:35:49,300 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread/queue.i [2023-11-23 22:35:52,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:35:52,970 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:35:52,971 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/sv-benchmarks/c/pthread/queue.i [2023-11-23 22:35:52,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/data/5702555bb/cff38bf36ef1441499da4e65870d6905/FLAGd462bf631 [2023-11-23 22:35:53,004 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/data/5702555bb/cff38bf36ef1441499da4e65870d6905 [2023-11-23 22:35:53,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:35:53,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:35:53,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:53,011 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:35:53,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:35:53,017 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:53,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53558376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53, skipping insertion in model container [2023-11-23 22:35:53,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:53,103 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:35:53,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:53,673 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:35:53,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:35:53,842 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:35:53,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53 WrapperNode [2023-11-23 22:35:53,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:35:53,844 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:53,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:35:53,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:35:53,852 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:53,879 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:53,931 INFO L138 Inliner]: procedures = 275, calls = 74, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 509 [2023-11-23 22:35:53,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:35:53,932 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:35:53,932 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:35:53,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:35:53,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:53,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:53,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:53,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:54,040 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:54,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:54,059 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:54,077 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:54,083 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:35:54,084 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:35:54,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:35:54,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:35:54,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (1/1) ... [2023-11-23 22:35:54,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:35:54,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:35:54,133 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:35:54,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a4097c01-3e4e-4b13-9f2a-15be14728d35/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:35:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-23 22:35:54,189 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-23 22:35:54,189 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-23 22:35:54,190 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-23 22:35:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:35:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:35:54,190 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 22:35:54,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:35:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:35:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 22:35:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:35:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:35:54,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:35:54,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:35:54,196 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:35:54,415 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:35:54,417 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:35:55,405 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:35:55,460 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:35:55,460 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 22:35:55,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:55 BoogieIcfgContainer [2023-11-23 22:35:55,463 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:35:55,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:35:55,467 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:35:55,471 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:35:55,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:35:53" (1/3) ... [2023-11-23 22:35:55,473 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186ac119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:55, skipping insertion in model container [2023-11-23 22:35:55,473 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:35:53" (2/3) ... [2023-11-23 22:35:55,475 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@186ac119 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:55, skipping insertion in model container [2023-11-23 22:35:55,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:55" (3/3) ... [2023-11-23 22:35:55,478 INFO L112 eAbstractionObserver]: Analyzing ICFG queue.i [2023-11-23 22:35:55,488 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:35:55,499 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:35:55,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-23 22:35:55,501 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:35:55,797 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-23 22:35:55,867 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 566 places, 577 transitions, 1168 flow [2023-11-23 22:35:56,243 INFO L124 PetriNetUnfolderBase]: 18/575 cut-off events. [2023-11-23 22:35:56,243 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-23 22:35:56,264 INFO L83 FinitePrefix]: Finished finitePrefix Result has 584 conditions, 575 events. 18/575 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 844 event pairs, 0 based on Foata normal form. 0/513 useless extension candidates. Maximal degree in co-relation 436. Up to 2 conditions per place. [2023-11-23 22:35:56,264 INFO L82 GeneralOperation]: Start removeDead. Operand has 566 places, 577 transitions, 1168 flow [2023-11-23 22:35:56,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 547 places, 556 transitions, 1121 flow [2023-11-23 22:35:56,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:35:56,310 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=LoopHeads, 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;@72f020a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:35:56,311 INFO L358 AbstractCegarLoop]: Starting to check reachability of 81 error locations. [2023-11-23 22:35:56,319 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:35:56,319 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2023-11-23 22:35:56,320 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:35:56,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:56,321 INFO L208 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] [2023-11-23 22:35:56,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-23 22:35:56,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:56,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1367360892, now seen corresponding path program 1 times [2023-11-23 22:35:56,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:56,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840707472] [2023-11-23 22:35:56,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:56,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:56,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:56,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:56,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:56,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840707472] [2023-11-23 22:35:56,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840707472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:56,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:56,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:56,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628838218] [2023-11-23 22:35:56,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:56,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:56,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:56,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:56,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:56,820 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 545 out of 577 [2023-11-23 22:35:56,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 556 transitions, 1121 flow. Second operand has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-23 22:35:56,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:56,830 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 545 of 577 [2023-11-23 22:35:56,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:35:57,472 INFO L124 PetriNetUnfolderBase]: 61/1681 cut-off events. [2023-11-23 22:35:57,472 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2023-11-23 22:35:57,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1776 conditions, 1681 events. 61/1681 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 7836 event pairs, 27 based on Foata normal form. 37/1536 useless extension candidates. Maximal degree in co-relation 1600. Up to 70 conditions per place. [2023-11-23 22:35:57,496 INFO L140 encePairwiseOnDemand]: 568/577 looper letters, 15 selfloop transitions, 2 changer transitions 0/543 dead transitions. [2023-11-23 22:35:57,497 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 543 transitions, 1129 flow [2023-11-23 22:35:57,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:57,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:35:57,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1659 transitions. [2023-11-23 22:35:57,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9584055459272097 [2023-11-23 22:35:57,525 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1659 transitions. [2023-11-23 22:35:57,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1659 transitions. [2023-11-23 22:35:57,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:35:57,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1659 transitions. [2023-11-23 22:35:57,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 553.0) internal successors, (1659), 3 states have internal predecessors, (1659), 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) [2023-11-23 22:35:57,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 577.0) internal successors, (2308), 4 states have internal predecessors, (2308), 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) [2023-11-23 22:35:57,559 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 577.0) internal successors, (2308), 4 states have internal predecessors, (2308), 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) [2023-11-23 22:35:57,561 INFO L175 Difference]: Start difference. First operand has 547 places, 556 transitions, 1121 flow. Second operand 3 states and 1659 transitions. [2023-11-23 22:35:57,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 543 transitions, 1129 flow [2023-11-23 22:35:57,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 543 transitions, 1124 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-23 22:35:57,590 INFO L231 Difference]: Finished difference. Result has 539 places, 543 transitions, 1094 flow [2023-11-23 22:35:57,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=577, PETRI_DIFFERENCE_MINUEND_FLOW=1090, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=543, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1094, PETRI_PLACES=539, PETRI_TRANSITIONS=543} [2023-11-23 22:35:57,597 INFO L281 CegarLoopForPetriNet]: 547 programPoint places, -8 predicate places. [2023-11-23 22:35:57,598 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 543 transitions, 1094 flow [2023-11-23 22:35:57,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-23 22:35:57,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:57,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:57,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:35:57,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-23 22:35:57,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:57,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1650545712, now seen corresponding path program 1 times [2023-11-23 22:35:57,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:57,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808062858] [2023-11-23 22:35:57,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:57,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:57,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:57,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:57,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808062858] [2023-11-23 22:35:57,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808062858] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:57,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:57,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:35:57,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673710362] [2023-11-23 22:35:57,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:57,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:35:57,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:57,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:35:57,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:35:57,708 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 545 out of 577 [2023-11-23 22:35:57,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 543 transitions, 1094 flow. Second operand has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-23 22:35:57,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:57,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 545 of 577 [2023-11-23 22:35:57,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:35:58,332 INFO L124 PetriNetUnfolderBase]: 69/1962 cut-off events. [2023-11-23 22:35:58,332 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2023-11-23 22:35:58,347 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2055 conditions, 1962 events. 69/1962 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 9949 event pairs, 29 based on Foata normal form. 0/1751 useless extension candidates. Maximal degree in co-relation 2011. Up to 74 conditions per place. [2023-11-23 22:35:58,359 INFO L140 encePairwiseOnDemand]: 574/577 looper letters, 15 selfloop transitions, 2 changer transitions 0/542 dead transitions. [2023-11-23 22:35:58,359 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 540 places, 542 transitions, 1126 flow [2023-11-23 22:35:58,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:35:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:35:58,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1653 transitions. [2023-11-23 22:35:58,365 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9549393414211439 [2023-11-23 22:35:58,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1653 transitions. [2023-11-23 22:35:58,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1653 transitions. [2023-11-23 22:35:58,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:35:58,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1653 transitions. [2023-11-23 22:35:58,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 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) [2023-11-23 22:35:58,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 577.0) internal successors, (2308), 4 states have internal predecessors, (2308), 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) [2023-11-23 22:35:58,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 577.0) internal successors, (2308), 4 states have internal predecessors, (2308), 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) [2023-11-23 22:35:58,380 INFO L175 Difference]: Start difference. First operand has 539 places, 543 transitions, 1094 flow. Second operand 3 states and 1653 transitions. [2023-11-23 22:35:58,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 540 places, 542 transitions, 1126 flow [2023-11-23 22:35:58,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 538 places, 542 transitions, 1122 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:35:58,394 INFO L231 Difference]: Finished difference. Result has 538 places, 542 transitions, 1092 flow [2023-11-23 22:35:58,396 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=577, PETRI_DIFFERENCE_MINUEND_FLOW=1088, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=542, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=540, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1092, PETRI_PLACES=538, PETRI_TRANSITIONS=542} [2023-11-23 22:35:58,397 INFO L281 CegarLoopForPetriNet]: 547 programPoint places, -9 predicate places. [2023-11-23 22:35:58,397 INFO L495 AbstractCegarLoop]: Abstraction has has 538 places, 542 transitions, 1092 flow [2023-11-23 22:35:58,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 546.3333333333334) internal successors, (1639), 3 states have internal predecessors, (1639), 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) [2023-11-23 22:35:58,399 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:35:58,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:58,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:35:58,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-23 22:35:58,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:58,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1695751660, now seen corresponding path program 1 times [2023-11-23 22:35:58,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:35:58,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628851296] [2023-11-23 22:35:58,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:58,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:35:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:59,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:35:59,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:35:59,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628851296] [2023-11-23 22:35:59,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628851296] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:35:59,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:35:59,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:35:59,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49652075] [2023-11-23 22:35:59,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:35:59,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:35:59,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:35:59,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:35:59,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:35:59,918 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 577 [2023-11-23 22:35:59,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 538 places, 542 transitions, 1092 flow. Second operand has 6 states, 6 states have (on average 413.3333333333333) internal successors, (2480), 6 states have internal predecessors, (2480), 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) [2023-11-23 22:35:59,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:35:59,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 577 [2023-11-23 22:35:59,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:19,075 INFO L124 PetriNetUnfolderBase]: 31243/86871 cut-off events. [2023-11-23 22:36:19,075 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-23 22:36:19,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133919 conditions, 86871 events. 31243/86871 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 958908 event pairs, 29490 based on Foata normal form. 0/79675 useless extension candidates. Maximal degree in co-relation 133871. Up to 46868 conditions per place. [2023-11-23 22:36:19,780 INFO L140 encePairwiseOnDemand]: 571/577 looper letters, 146 selfloop transitions, 5 changer transitions 0/541 dead transitions. [2023-11-23 22:36:19,780 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 541 transitions, 1392 flow [2023-11-23 22:36:19,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:19,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:19,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2624 transitions. [2023-11-23 22:36:19,791 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7579433853264009 [2023-11-23 22:36:19,791 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2624 transitions. [2023-11-23 22:36:19,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2624 transitions. [2023-11-23 22:36:19,793 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:19,794 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2624 transitions. [2023-11-23 22:36:19,803 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 437.3333333333333) internal successors, (2624), 6 states have internal predecessors, (2624), 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) [2023-11-23 22:36:19,814 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 577.0) internal successors, (4039), 7 states have internal predecessors, (4039), 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) [2023-11-23 22:36:19,818 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 577.0) internal successors, (4039), 7 states have internal predecessors, (4039), 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) [2023-11-23 22:36:19,818 INFO L175 Difference]: Start difference. First operand has 538 places, 542 transitions, 1092 flow. Second operand 6 states and 2624 transitions. [2023-11-23 22:36:19,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 541 transitions, 1392 flow [2023-11-23 22:36:19,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 540 places, 541 transitions, 1388 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-23 22:36:19,833 INFO L231 Difference]: Finished difference. Result has 540 places, 541 transitions, 1096 flow [2023-11-23 22:36:19,835 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=577, PETRI_DIFFERENCE_MINUEND_FLOW=1086, PETRI_DIFFERENCE_MINUEND_PLACES=535, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=536, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1096, PETRI_PLACES=540, PETRI_TRANSITIONS=541} [2023-11-23 22:36:19,837 INFO L281 CegarLoopForPetriNet]: 547 programPoint places, -7 predicate places. [2023-11-23 22:36:19,837 INFO L495 AbstractCegarLoop]: Abstraction has has 540 places, 541 transitions, 1096 flow [2023-11-23 22:36:19,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 413.3333333333333) internal successors, (2480), 6 states have internal predecessors, (2480), 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) [2023-11-23 22:36:19,839 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:19,840 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:19,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:36:19,840 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-23 22:36:19,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:19,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1012209044, now seen corresponding path program 1 times [2023-11-23 22:36:19,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:19,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22714094] [2023-11-23 22:36:19,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:19,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:20,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:20,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:20,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22714094] [2023-11-23 22:36:20,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22714094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:20,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:20,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:36:20,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021868003] [2023-11-23 22:36:20,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:20,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:20,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:20,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:20,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:21,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 577 [2023-11-23 22:36:21,390 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 540 places, 541 transitions, 1096 flow. Second operand has 6 states, 6 states have (on average 413.3333333333333) internal successors, (2480), 6 states have internal predecessors, (2480), 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) [2023-11-23 22:36:21,391 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:21,391 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 577 [2023-11-23 22:36:21,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:36:39,425 INFO L124 PetriNetUnfolderBase]: 31243/86870 cut-off events. [2023-11-23 22:36:39,426 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-23 22:36:39,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133921 conditions, 86870 events. 31243/86870 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 958561 event pairs, 29490 based on Foata normal form. 0/79675 useless extension candidates. Maximal degree in co-relation 133857. Up to 46868 conditions per place. [2023-11-23 22:36:39,908 INFO L140 encePairwiseOnDemand]: 571/577 looper letters, 146 selfloop transitions, 5 changer transitions 0/540 dead transitions. [2023-11-23 22:36:39,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 544 places, 540 transitions, 1396 flow [2023-11-23 22:36:39,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:36:39,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:36:39,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2624 transitions. [2023-11-23 22:36:39,924 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7579433853264009 [2023-11-23 22:36:39,924 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2624 transitions. [2023-11-23 22:36:39,925 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2624 transitions. [2023-11-23 22:36:39,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:36:39,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2624 transitions. [2023-11-23 22:36:39,936 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 437.3333333333333) internal successors, (2624), 6 states have internal predecessors, (2624), 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) [2023-11-23 22:36:39,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 577.0) internal successors, (4039), 7 states have internal predecessors, (4039), 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) [2023-11-23 22:36:39,950 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 577.0) internal successors, (4039), 7 states have internal predecessors, (4039), 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) [2023-11-23 22:36:39,951 INFO L175 Difference]: Start difference. First operand has 540 places, 541 transitions, 1096 flow. Second operand 6 states and 2624 transitions. [2023-11-23 22:36:39,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 544 places, 540 transitions, 1396 flow [2023-11-23 22:36:39,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 539 places, 540 transitions, 1386 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:36:39,969 INFO L231 Difference]: Finished difference. Result has 539 places, 540 transitions, 1094 flow [2023-11-23 22:36:39,970 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=577, PETRI_DIFFERENCE_MINUEND_FLOW=1084, PETRI_DIFFERENCE_MINUEND_PLACES=534, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=540, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=535, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1094, PETRI_PLACES=539, PETRI_TRANSITIONS=540} [2023-11-23 22:36:39,973 INFO L281 CegarLoopForPetriNet]: 547 programPoint places, -8 predicate places. [2023-11-23 22:36:39,973 INFO L495 AbstractCegarLoop]: Abstraction has has 539 places, 540 transitions, 1094 flow [2023-11-23 22:36:39,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 413.3333333333333) internal successors, (2480), 6 states have internal predecessors, (2480), 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) [2023-11-23 22:36:39,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:36:39,977 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:36:39,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:36:39,977 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 78 more)] === [2023-11-23 22:36:39,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:36:39,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1912269892, now seen corresponding path program 1 times [2023-11-23 22:36:39,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:36:39,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76120205] [2023-11-23 22:36:39,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:36:39,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:36:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:36:40,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:36:40,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:36:40,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76120205] [2023-11-23 22:36:40,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76120205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:36:40,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:36:40,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:36:40,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844172640] [2023-11-23 22:36:40,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:36:40,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:36:40,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:36:40,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:36:40,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:36:41,424 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 412 out of 577 [2023-11-23 22:36:41,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 539 places, 540 transitions, 1094 flow. Second operand has 6 states, 6 states have (on average 413.3333333333333) internal successors, (2480), 6 states have internal predecessors, (2480), 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) [2023-11-23 22:36:41,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:36:41,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 412 of 577 [2023-11-23 22:36:41,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand