/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.pointer.base.address.is.valid.at.dereference ASSERTandASSUME --cacsl2boogietranslator.pointer.to.allocated.memory.at.dereference ASSERTandASSUME --cacsl2boogietranslator.check.array.bounds.for.arrays.that.are.off.heap ASSERTandASSUME --cacsl2boogietranslator.check.if.freed.pointer.was.valid true --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-26 16:05:38,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-26 16:05:38,194 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-08-26 16:05:38,199 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-26 16:05:38,200 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-26 16:05:38,229 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-26 16:05:38,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-26 16:05:38,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-26 16:05:38,230 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-26 16:05:38,231 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-26 16:05:38,231 INFO L153 SettingsManager]: * Use SBE=true [2023-08-26 16:05:38,231 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-26 16:05:38,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-26 16:05:38,232 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-26 16:05:38,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-26 16:05:38,233 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-26 16:05:38,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-26 16:05:38,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-26 16:05:38,234 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-26 16:05:38,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-26 16:05:38,235 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-26 16:05:38,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-26 16:05:38,236 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-26 16:05:38,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-26 16:05:38,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-26 16:05:38,237 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-26 16:05:38,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-26 16:05:38,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 16:05:38,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-26 16:05:38,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-26 16:05:38,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-26 16:05:38,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-26 16:05:38,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-26 16:05:38,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-26 16:05:38,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-26 16:05:38,239 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer base address is valid at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Pointer to allocated memory at dereference -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check array bounds for arrays that are off heap -> ASSERTandASSUME Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check if freed pointer was valid -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2023-08-26 16:05:38,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-26 16:05:38,569 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-26 16:05:38,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-26 16:05:38,572 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-26 16:05:38,572 INFO L274 PluginConnector]: CDTParser initialized [2023-08-26 16:05:38,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-08-26 16:05:39,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-26 16:05:40,098 INFO L384 CDTParser]: Found 1 translation units. [2023-08-26 16:05:40,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_84-list2_racing2.i [2023-08-26 16:05:40,131 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa1f2305a/19f019502fb34a688387a11bb9fd794f/FLAG5df2165c0 [2023-08-26 16:05:40,145 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fa1f2305a/19f019502fb34a688387a11bb9fd794f [2023-08-26 16:05:40,147 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-26 16:05:40,148 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-26 16:05:40,149 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-26 16:05:40,149 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-26 16:05:40,152 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-26 16:05:40,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75207492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40, skipping insertion in model container [2023-08-26 16:05:40,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,209 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-26 16:05:40,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 16:05:40,740 INFO L201 MainTranslator]: Completed pre-run [2023-08-26 16:05:40,760 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 16:05:40,761 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [261] [2023-08-26 16:05:40,789 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-26 16:05:40,854 INFO L206 MainTranslator]: Completed translation [2023-08-26 16:05:40,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40 WrapperNode [2023-08-26 16:05:40,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-26 16:05:40,855 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-26 16:05:40,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-26 16:05:40,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-26 16:05:40,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,922 INFO L138 Inliner]: procedures = 279, calls = 89, calls flagged for inlining = 13, calls inlined = 14, statements flattened = 396 [2023-08-26 16:05:40,926 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-26 16:05:40,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-26 16:05:40,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-26 16:05:40,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-26 16:05:40,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,940 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,940 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,952 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,960 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,962 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-26 16:05:40,967 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-26 16:05:40,967 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-26 16:05:40,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-26 16:05:40,968 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (1/1) ... [2023-08-26 16:05:40,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-26 16:05:40,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-26 16:05:40,998 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-26 16:05:41,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-26 16:05:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-26 16:05:41,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-08-26 16:05:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-08-26 16:05:41,035 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-08-26 16:05:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-26 16:05:41,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-26 16:05:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-08-26 16:05:41,036 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-08-26 16:05:41,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-26 16:05:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-26 16:05:41,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-08-26 16:05:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-26 16:05:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-26 16:05:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-08-26 16:05:41,038 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-08-26 16:05:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-26 16:05:41,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-26 16:05:41,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-26 16:05:41,042 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-26 16:05:41,216 INFO L236 CfgBuilder]: Building ICFG [2023-08-26 16:05:41,218 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-26 16:05:41,669 INFO L277 CfgBuilder]: Performing block encoding [2023-08-26 16:05:41,677 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-26 16:05:41,677 INFO L302 CfgBuilder]: Removed 29 assume(true) statements. [2023-08-26 16:05:41,679 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 04:05:41 BoogieIcfgContainer [2023-08-26 16:05:41,679 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-26 16:05:41,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-26 16:05:41,681 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-26 16:05:41,684 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-26 16:05:41,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 04:05:40" (1/3) ... [2023-08-26 16:05:41,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb4707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 04:05:41, skipping insertion in model container [2023-08-26 16:05:41,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 04:05:40" (2/3) ... [2023-08-26 16:05:41,685 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eb4707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 04:05:41, skipping insertion in model container [2023-08-26 16:05:41,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 04:05:41" (3/3) ... [2023-08-26 16:05:41,686 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_84-list2_racing2.i [2023-08-26 16:05:41,701 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-26 16:05:41,701 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2023-08-26 16:05:41,701 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-26 16:05:41,886 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-08-26 16:05:41,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 432 places, 475 transitions, 992 flow [2023-08-26 16:05:42,469 INFO L124 PetriNetUnfolderBase]: 194/1735 cut-off events. [2023-08-26 16:05:42,469 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-26 16:05:42,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1796 conditions, 1735 events. 194/1735 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 12565 event pairs, 0 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 888. Up to 16 conditions per place. [2023-08-26 16:05:42,509 INFO L82 GeneralOperation]: Start removeDead. Operand has 432 places, 475 transitions, 992 flow [2023-08-26 16:05:42,528 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 422 places, 465 transitions, 972 flow [2023-08-26 16:05:42,532 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 16:05:42,543 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 422 places, 465 transitions, 972 flow [2023-08-26 16:05:42,546 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 422 places, 465 transitions, 972 flow [2023-08-26 16:05:42,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 422 places, 465 transitions, 972 flow [2023-08-26 16:05:42,892 INFO L124 PetriNetUnfolderBase]: 194/1723 cut-off events. [2023-08-26 16:05:42,892 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2023-08-26 16:05:42,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1784 conditions, 1723 events. 194/1723 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 12454 event pairs, 0 based on Foata normal form. 0/1275 useless extension candidates. Maximal degree in co-relation 878. Up to 16 conditions per place. [2023-08-26 16:05:43,017 INFO L119 LiptonReduction]: Number of co-enabled transitions 103754 [2023-08-26 16:06:02,213 INFO L134 LiptonReduction]: Checked pairs total: 264823 [2023-08-26 16:06:02,213 INFO L136 LiptonReduction]: Total number of compositions: 386 [2023-08-26 16:06:02,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 16:06:02,240 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=false, 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;@79b893f1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 16:06:02,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-26 16:06:02,249 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 16:06:02,250 INFO L124 PetriNetUnfolderBase]: 4/43 cut-off events. [2023-08-26 16:06:02,250 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-26 16:06:02,250 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 16:06:02,251 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-08-26 16:06:02,251 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-26 16:06:02,256 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 16:06:02,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1883728796, now seen corresponding path program 1 times [2023-08-26 16:06:02,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 16:06:02,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412409886] [2023-08-26 16:06:02,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 16:06:02,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 16:06:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 16:06:02,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 16:06:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 16:06:02,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 16:06:02,530 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 16:06:02,531 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-08-26 16:06:02,532 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-26 16:06:02,533 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-26 16:06:02,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-26 16:06:02,533 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 16:06:02,535 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN,UNKNOWN (1/2) [2023-08-26 16:06:02,536 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 16:06:02,536 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-08-26 16:06:02,654 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-08-26 16:06:02,661 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 658 places, 736 transitions, 1562 flow [2023-08-26 16:06:05,583 INFO L124 PetriNetUnfolderBase]: 1235/8067 cut-off events. [2023-08-26 16:06:05,583 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-08-26 16:06:05,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8741 conditions, 8067 events. 1235/8067 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 79149 event pairs, 22 based on Foata normal form. 0/6020 useless extension candidates. Maximal degree in co-relation 5066. Up to 192 conditions per place. [2023-08-26 16:06:05,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 658 places, 736 transitions, 1562 flow [2023-08-26 16:06:05,879 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 648 places, 726 transitions, 1542 flow [2023-08-26 16:06:05,880 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 16:06:05,880 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 648 places, 726 transitions, 1542 flow [2023-08-26 16:06:05,880 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 648 places, 726 transitions, 1542 flow [2023-08-26 16:06:05,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 648 places, 726 transitions, 1542 flow [2023-08-26 16:06:08,467 INFO L124 PetriNetUnfolderBase]: 1235/8053 cut-off events. [2023-08-26 16:06:08,468 INFO L125 PetriNetUnfolderBase]: For 602/602 co-relation queries the response was YES. [2023-08-26 16:06:08,655 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8727 conditions, 8053 events. 1235/8053 cut-off events. For 602/602 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 79197 event pairs, 22 based on Foata normal form. 0/6020 useless extension candidates. Maximal degree in co-relation 5054. Up to 192 conditions per place. [2023-08-26 16:06:09,357 INFO L119 LiptonReduction]: Number of co-enabled transitions 341692 [2023-08-26 16:06:32,025 INFO L134 LiptonReduction]: Checked pairs total: 1064927 [2023-08-26 16:06:32,027 INFO L136 LiptonReduction]: Total number of compositions: 575 [2023-08-26 16:06:32,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 16:06:32,036 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=false, 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;@79b893f1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 16:06:32,036 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-26 16:06:32,049 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 16:06:32,050 INFO L124 PetriNetUnfolderBase]: 25/189 cut-off events. [2023-08-26 16:06:32,050 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-08-26 16:06:32,050 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 16:06:32,050 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-08-26 16:06:32,050 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-26 16:06:32,051 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 16:06:32,051 INFO L85 PathProgramCache]: Analyzing trace with hash 903827535, now seen corresponding path program 1 times [2023-08-26 16:06:32,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 16:06:32,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416078496] [2023-08-26 16:06:32,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 16:06:32,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 16:06:32,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 16:06:32,118 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 16:06:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 16:06:32,155 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 16:06:32,155 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 16:06:32,155 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-08-26 16:06:32,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-26 16:06:32,156 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-26 16:06:32,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-26 16:06:32,156 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 16:06:32,156 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN,UNKNOWN (1/2) [2023-08-26 16:06:32,156 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 16:06:32,157 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-08-26 16:06:32,252 INFO L144 ThreadInstanceAdder]: Constructed 27 joinOtherThreadTransitions. [2023-08-26 16:06:32,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 884 places, 997 transitions, 2138 flow [2023-08-26 16:06:53,087 INFO L124 PetriNetUnfolderBase]: 9236/40617 cut-off events. [2023-08-26 16:06:53,087 INFO L125 PetriNetUnfolderBase]: For 7059/7059 co-relation queries the response was YES. [2023-08-26 16:06:55,615 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47791 conditions, 40617 events. 9236/40617 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 480068 event pairs, 512 based on Foata normal form. 0/31407 useless extension candidates. Maximal degree in co-relation 25978. Up to 2304 conditions per place. [2023-08-26 16:06:55,616 INFO L82 GeneralOperation]: Start removeDead. Operand has 884 places, 997 transitions, 2138 flow [2023-08-26 16:06:56,803 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 874 places, 987 transitions, 2118 flow [2023-08-26 16:06:56,804 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-26 16:06:56,804 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 874 places, 987 transitions, 2118 flow [2023-08-26 16:06:56,804 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 874 places, 987 transitions, 2118 flow [2023-08-26 16:06:56,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 874 places, 987 transitions, 2118 flow [2023-08-26 16:07:16,287 INFO L124 PetriNetUnfolderBase]: 9236/40601 cut-off events. [2023-08-26 16:07:16,288 INFO L125 PetriNetUnfolderBase]: For 7059/7059 co-relation queries the response was YES. [2023-08-26 16:07:18,592 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47775 conditions, 40601 events. 9236/40601 cut-off events. For 7059/7059 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 480415 event pairs, 512 based on Foata normal form. 0/31407 useless extension candidates. Maximal degree in co-relation 25964. Up to 2304 conditions per place. [2023-08-26 16:07:23,387 INFO L119 LiptonReduction]: Number of co-enabled transitions 713814 [2023-08-26 16:07:47,494 INFO L134 LiptonReduction]: Checked pairs total: 2094785 [2023-08-26 16:07:47,494 INFO L136 LiptonReduction]: Total number of compositions: 795 [2023-08-26 16:07:47,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-26 16:07:47,497 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=false, 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;@79b893f1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-26 16:07:47,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-26 16:07:47,541 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-26 16:07:47,542 INFO L124 PetriNetUnfolderBase]: 104/678 cut-off events. [2023-08-26 16:07:47,542 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-08-26 16:07:47,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-26 16:07:47,542 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-08-26 16:07:47,542 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-26 16:07:47,542 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-26 16:07:47,543 INFO L85 PathProgramCache]: Analyzing trace with hash 552894485, now seen corresponding path program 1 times [2023-08-26 16:07:47,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-26 16:07:47,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549903835] [2023-08-26 16:07:47,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-26 16:07:47,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-26 16:07:47,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 16:07:47,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-26 16:07:47,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-26 16:07:47,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-26 16:07:47,613 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-26 16:07:47,614 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-08-26 16:07:47,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-26 16:07:47,614 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-26 16:07:47,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-26 16:07:47,614 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-26 16:07:47,615 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN,UNKNOWN (1/2) [2023-08-26 16:07:47,615 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-08-26 16:07:47,615 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-08-26 16:07:47,736 INFO L144 ThreadInstanceAdder]: Constructed 36 joinOtherThreadTransitions. [2023-08-26 16:07:47,744 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1110 places, 1258 transitions, 2720 flow