/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.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 01:37:17,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 01:37:17,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 01:37:17,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 01:37:17,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 01:37:17,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 01:37:17,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 01:37:17,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 01:37:17,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 01:37:17,799 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 01:37:17,800 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 01:37:17,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 01:37:17,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 01:37:17,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 01:37:17,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 01:37:17,803 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 01:37:17,803 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 01:37:17,804 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 01:37:17,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 01:37:17,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 01:37:17,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 01:37:17,815 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 01:37:17,816 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 01:37:17,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 01:37:17,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 01:37:17,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 01:37:17,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 01:37:17,825 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 01:37:17,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf [2023-01-28 01:37:17,849 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 01:37:17,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 01:37:17,849 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 01:37:17,850 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 01:37:17,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 01:37:17,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 01:37:17,850 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 01:37:17,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 01:37:17,850 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 01:37:17,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 01:37:17,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 01:37:17,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 01:37:17,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 01:37:17,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:37:17,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 01:37:17,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 01:37:17,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 01:37:17,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 01:37:17,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 01:37:17,852 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 01:37:17,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 01:37:17,852 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 01:37:18,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 01:37:18,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 01:37:18,088 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 01:37:18,089 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 01:37:18,089 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 01:37:18,090 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-01-28 01:37:19,055 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 01:37:19,275 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 01:37:19,275 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i [2023-01-28 01:37:19,283 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7cb5732c/ac5c446fb9244b7aa2ebbe4d768d4087/FLAGf71dfdf40 [2023-01-28 01:37:19,292 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7cb5732c/ac5c446fb9244b7aa2ebbe4d768d4087 [2023-01-28 01:37:19,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 01:37:19,294 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 01:37:19,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 01:37:19,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 01:37:19,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 01:37:19,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,298 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63bb4ee5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19, skipping insertion in model container [2023-01-28 01:37:19,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 01:37:19,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 01:37:19,562 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2023-01-28 01:37:19,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:37:19,586 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 01:37:19,607 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_10-ptrmunge_racefree.i[30176,30189] [2023-01-28 01:37:19,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 01:37:19,655 INFO L208 MainTranslator]: Completed translation [2023-01-28 01:37:19,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19 WrapperNode [2023-01-28 01:37:19,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 01:37:19,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 01:37:19,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 01:37:19,657 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 01:37:19,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,719 INFO L138 Inliner]: procedures = 172, calls = 52, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 220 [2023-01-28 01:37:19,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 01:37:19,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 01:37:19,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 01:37:19,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 01:37:19,726 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,738 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,747 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,768 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,771 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 01:37:19,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 01:37:19,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 01:37:19,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 01:37:19,773 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (1/1) ... [2023-01-28 01:37:19,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 01:37:19,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 01:37:19,796 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) [2023-01-28 01:37:19,806 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 [2023-01-28 01:37:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 01:37:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-01-28 01:37:19,828 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-01-28 01:37:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 01:37:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 01:37:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 01:37:19,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 01:37:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-01-28 01:37:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-01-28 01:37:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 01:37:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 01:37:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 01:37:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 01:37:19,830 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 01:37:19,938 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 01:37:19,940 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 01:37:20,172 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 01:37:20,179 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 01:37:20,179 INFO L302 CfgBuilder]: Removed 24 assume(true) statements. [2023-01-28 01:37:20,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:37:20 BoogieIcfgContainer [2023-01-28 01:37:20,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 01:37:20,182 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 01:37:20,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 01:37:20,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 01:37:20,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 01:37:19" (1/3) ... [2023-01-28 01:37:20,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec71543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:37:20, skipping insertion in model container [2023-01-28 01:37:20,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 01:37:19" (2/3) ... [2023-01-28 01:37:20,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ec71543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 01:37:20, skipping insertion in model container [2023-01-28 01:37:20,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 01:37:20" (3/3) ... [2023-01-28 01:37:20,186 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_10-ptrmunge_racefree.i [2023-01-28 01:37:20,198 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 01:37:20,198 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-28 01:37:20,198 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 01:37:20,275 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-28 01:37:20,310 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 217 transitions, 456 flow [2023-01-28 01:37:20,402 INFO L130 PetriNetUnfolder]: 58/382 cut-off events. [2023-01-28 01:37:20,403 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2023-01-28 01:37:20,409 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 382 events. 58/382 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1620 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2023-01-28 01:37:20,410 INFO L82 GeneralOperation]: Start removeDead. Operand has 190 places, 217 transitions, 456 flow [2023-01-28 01:37:20,415 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 190 places, 217 transitions, 456 flow [2023-01-28 01:37:20,417 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:37:20,424 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 190 places, 217 transitions, 456 flow [2023-01-28 01:37:20,426 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 190 places, 217 transitions, 456 flow [2023-01-28 01:37:20,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 190 places, 217 transitions, 456 flow [2023-01-28 01:37:20,467 INFO L130 PetriNetUnfolder]: 58/382 cut-off events. [2023-01-28 01:37:20,467 INFO L131 PetriNetUnfolder]: For 8/12 co-relation queries the response was YES. [2023-01-28 01:37:20,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402 conditions, 382 events. 58/382 cut-off events. For 8/12 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1620 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 203. Up to 8 conditions per place. [2023-01-28 01:37:20,479 INFO L119 LiptonReduction]: Number of co-enabled transitions 18788 [2023-01-28 01:37:24,171 INFO L134 LiptonReduction]: Checked pairs total: 33979 [2023-01-28 01:37:24,172 INFO L136 LiptonReduction]: Total number of compositions: 164 [2023-01-28 01:37:24,183 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:37:24,191 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;@f7e5c29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:37:24,191 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:37:24,208 INFO L130 PetriNetUnfolder]: 1/21 cut-off events. [2023-01-28 01:37:24,208 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 01:37:24,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:37:24,209 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-28 01:37:24,209 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:37:24,213 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:37:24,213 INFO L85 PathProgramCache]: Analyzing trace with hash 132924624, now seen corresponding path program 1 times [2023-01-28 01:37:24,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:37:24,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157521252] [2023-01-28 01:37:24,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:37:24,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:37:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:24,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:37:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:24,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:37:24,334 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:37:24,335 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:37:24,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:37:24,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 01:37:24,337 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:37:24,338 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:37:24,339 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:37:24,339 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-28 01:37:24,385 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-01-28 01:37:24,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 345 transitions, 738 flow [2023-01-28 01:37:24,518 INFO L130 PetriNetUnfolder]: 197/1105 cut-off events. [2023-01-28 01:37:24,518 INFO L131 PetriNetUnfolder]: For 72/81 co-relation queries the response was YES. [2023-01-28 01:37:24,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1105 events. 197/1105 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6613 event pairs, 1 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 673. Up to 32 conditions per place. [2023-01-28 01:37:24,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 294 places, 345 transitions, 738 flow [2023-01-28 01:37:24,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 294 places, 345 transitions, 738 flow [2023-01-28 01:37:24,547 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:37:24,547 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 294 places, 345 transitions, 738 flow [2023-01-28 01:37:24,547 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 294 places, 345 transitions, 738 flow [2023-01-28 01:37:24,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 294 places, 345 transitions, 738 flow [2023-01-28 01:37:24,668 INFO L130 PetriNetUnfolder]: 197/1105 cut-off events. [2023-01-28 01:37:24,669 INFO L131 PetriNetUnfolder]: For 72/81 co-relation queries the response was YES. [2023-01-28 01:37:24,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1202 conditions, 1105 events. 197/1105 cut-off events. For 72/81 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 6613 event pairs, 1 based on Foata normal form. 0/913 useless extension candidates. Maximal degree in co-relation 673. Up to 32 conditions per place. [2023-01-28 01:37:24,727 INFO L119 LiptonReduction]: Number of co-enabled transitions 69784 [2023-01-28 01:37:28,494 INFO L134 LiptonReduction]: Checked pairs total: 148412 [2023-01-28 01:37:28,494 INFO L136 LiptonReduction]: Total number of compositions: 248 [2023-01-28 01:37:28,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:37:28,514 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;@f7e5c29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:37:28,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:37:28,520 INFO L130 PetriNetUnfolder]: 32/123 cut-off events. [2023-01-28 01:37:28,520 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2023-01-28 01:37:28,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:37:28,521 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-01-28 01:37:28,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:37:28,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:37:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1479840459, now seen corresponding path program 1 times [2023-01-28 01:37:28,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:37:28,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638916023] [2023-01-28 01:37:28,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:37:28,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:37:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:28,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:37:28,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:28,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:37:28,622 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:37:28,622 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:37:28,622 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:37:28,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 01:37:28,623 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:37:28,623 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:37:28,623 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:37:28,624 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-01-28 01:37:28,669 INFO L144 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2023-01-28 01:37:28,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 473 transitions, 1024 flow [2023-01-28 01:37:29,309 INFO L130 PetriNetUnfolder]: 664/3104 cut-off events. [2023-01-28 01:37:29,310 INFO L131 PetriNetUnfolder]: For 419/435 co-relation queries the response was YES. [2023-01-28 01:37:29,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3555 conditions, 3104 events. 664/3104 cut-off events. For 419/435 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 22666 event pairs, 52 based on Foata normal form. 0/2613 useless extension candidates. Maximal degree in co-relation 2007. Up to 192 conditions per place. [2023-01-28 01:37:29,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 398 places, 473 transitions, 1024 flow [2023-01-28 01:37:29,474 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 398 places, 473 transitions, 1024 flow [2023-01-28 01:37:29,474 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:37:29,479 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 398 places, 473 transitions, 1024 flow [2023-01-28 01:37:29,479 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 398 places, 473 transitions, 1024 flow [2023-01-28 01:37:29,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 398 places, 473 transitions, 1024 flow [2023-01-28 01:37:30,040 INFO L130 PetriNetUnfolder]: 664/3104 cut-off events. [2023-01-28 01:37:30,041 INFO L131 PetriNetUnfolder]: For 419/435 co-relation queries the response was YES. [2023-01-28 01:37:30,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3555 conditions, 3104 events. 664/3104 cut-off events. For 419/435 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 22666 event pairs, 52 based on Foata normal form. 0/2613 useless extension candidates. Maximal degree in co-relation 2007. Up to 192 conditions per place. [2023-01-28 01:37:30,356 INFO L119 LiptonReduction]: Number of co-enabled transitions 152988 [2023-01-28 01:37:34,756 INFO L134 LiptonReduction]: Checked pairs total: 338346 [2023-01-28 01:37:34,756 INFO L136 LiptonReduction]: Total number of compositions: 349 [2023-01-28 01:37:34,781 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:37:34,787 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;@f7e5c29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:37:34,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:37:34,801 INFO L130 PetriNetUnfolder]: 85/287 cut-off events. [2023-01-28 01:37:34,801 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2023-01-28 01:37:34,802 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:37:34,802 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1] [2023-01-28 01:37:34,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:37:34,802 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:37:34,802 INFO L85 PathProgramCache]: Analyzing trace with hash -215580219, now seen corresponding path program 1 times [2023-01-28 01:37:34,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:37:34,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394313513] [2023-01-28 01:37:34,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:37:34,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:37:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:34,842 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:37:34,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:34,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:37:34,877 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:37:34,877 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:37:34,877 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:37:34,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 01:37:34,878 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:37:34,878 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:37:34,878 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:37:34,878 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2023-01-28 01:37:34,933 INFO L144 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2023-01-28 01:37:34,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 502 places, 601 transitions, 1314 flow [2023-01-28 01:37:37,913 INFO L130 PetriNetUnfolder]: 2647/10051 cut-off events. [2023-01-28 01:37:37,913 INFO L131 PetriNetUnfolder]: For 2144/2174 co-relation queries the response was YES. [2023-01-28 01:37:38,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12216 conditions, 10051 events. 2647/10051 cut-off events. For 2144/2174 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 89279 event pairs, 626 based on Foata normal form. 0/8655 useless extension candidates. Maximal degree in co-relation 6424. Up to 1024 conditions per place. [2023-01-28 01:37:38,139 INFO L82 GeneralOperation]: Start removeDead. Operand has 502 places, 601 transitions, 1314 flow [2023-01-28 01:37:38,266 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 502 places, 601 transitions, 1314 flow [2023-01-28 01:37:38,266 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:37:38,266 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 502 places, 601 transitions, 1314 flow [2023-01-28 01:37:38,266 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 502 places, 601 transitions, 1314 flow [2023-01-28 01:37:38,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 502 places, 601 transitions, 1314 flow [2023-01-28 01:37:40,944 INFO L130 PetriNetUnfolder]: 2647/10051 cut-off events. [2023-01-28 01:37:40,945 INFO L131 PetriNetUnfolder]: For 2144/2174 co-relation queries the response was YES. [2023-01-28 01:37:41,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12216 conditions, 10051 events. 2647/10051 cut-off events. For 2144/2174 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 89279 event pairs, 626 based on Foata normal form. 0/8655 useless extension candidates. Maximal degree in co-relation 6424. Up to 1024 conditions per place. [2023-01-28 01:37:41,730 INFO L119 LiptonReduction]: Number of co-enabled transitions 268400 [2023-01-28 01:37:46,410 INFO L134 LiptonReduction]: Checked pairs total: 611154 [2023-01-28 01:37:46,410 INFO L136 LiptonReduction]: Total number of compositions: 436 [2023-01-28 01:37:46,411 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:37:46,412 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;@f7e5c29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:37:46,412 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:37:46,454 INFO L130 PetriNetUnfolder]: 144/492 cut-off events. [2023-01-28 01:37:46,454 INFO L131 PetriNetUnfolder]: For 91/91 co-relation queries the response was YES. [2023-01-28 01:37:46,455 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:37:46,455 INFO L208 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 1, 1, 1, 1, 1, 1] [2023-01-28 01:37:46,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:37:46,455 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:37:46,455 INFO L85 PathProgramCache]: Analyzing trace with hash -337853554, now seen corresponding path program 1 times [2023-01-28 01:37:46,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:37:46,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893765011] [2023-01-28 01:37:46,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:37:46,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:37:46,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:46,488 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:37:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:37:46,506 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:37:46,506 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:37:46,506 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:37:46,507 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:37:46,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 01:37:46,507 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:37:46,507 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:37:46,507 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:37:46,507 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2023-01-28 01:37:46,566 INFO L144 ThreadInstanceAdder]: Constructed 20 joinOtherThreadTransitions. [2023-01-28 01:37:46,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 606 places, 729 transitions, 1608 flow [2023-01-28 01:38:00,446 INFO L130 PetriNetUnfolder]: 11762/37498 cut-off events. [2023-01-28 01:38:00,446 INFO L131 PetriNetUnfolder]: For 10450/10486 co-relation queries the response was YES. [2023-01-28 01:38:02,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47924 conditions, 37498 events. 11762/37498 cut-off events. For 10450/10486 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 404541 event pairs, 4296 based on Foata normal form. 0/32863 useless extension candidates. Maximal degree in co-relation 23871. Up to 5120 conditions per place. [2023-01-28 01:38:02,330 INFO L82 GeneralOperation]: Start removeDead. Operand has 606 places, 729 transitions, 1608 flow [2023-01-28 01:38:03,044 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 606 places, 729 transitions, 1608 flow [2023-01-28 01:38:03,044 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:38:03,045 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 606 places, 729 transitions, 1608 flow [2023-01-28 01:38:03,045 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 606 places, 729 transitions, 1608 flow [2023-01-28 01:38:03,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 606 places, 729 transitions, 1608 flow [2023-01-28 01:38:16,320 INFO L130 PetriNetUnfolder]: 11762/37498 cut-off events. [2023-01-28 01:38:16,320 INFO L131 PetriNetUnfolder]: For 10450/10486 co-relation queries the response was YES. [2023-01-28 01:38:17,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47924 conditions, 37498 events. 11762/37498 cut-off events. For 10450/10486 co-relation queries the response was YES. Maximal size of possible extension queue 490. Compared 404541 event pairs, 4296 based on Foata normal form. 0/32863 useless extension candidates. Maximal degree in co-relation 23871. Up to 5120 conditions per place. [2023-01-28 01:38:21,350 INFO L119 LiptonReduction]: Number of co-enabled transitions 416020 [2023-01-28 01:38:27,132 INFO L134 LiptonReduction]: Checked pairs total: 955416 [2023-01-28 01:38:27,132 INFO L136 LiptonReduction]: Total number of compositions: 527 [2023-01-28 01:38:27,141 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:38:27,142 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;@f7e5c29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:38:27,143 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:38:27,202 INFO L130 PetriNetUnfolder]: 243/808 cut-off events. [2023-01-28 01:38:27,202 INFO L131 PetriNetUnfolder]: For 203/203 co-relation queries the response was YES. [2023-01-28 01:38:27,202 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:38:27,202 INFO L208 CegarLoopForPetriNet]: trace histogram [6, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:38:27,202 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:38:27,202 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:38:27,202 INFO L85 PathProgramCache]: Analyzing trace with hash 689169378, now seen corresponding path program 1 times [2023-01-28 01:38:27,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:38:27,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625008023] [2023-01-28 01:38:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:38:27,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:38:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:38:27,263 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:38:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:38:27,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:38:27,293 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:38:27,293 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:38:27,293 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:38:27,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 01:38:27,293 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:38:27,294 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:38:27,294 WARN L233 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:38:27,294 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2023-01-28 01:38:27,344 INFO L144 ThreadInstanceAdder]: Constructed 24 joinOtherThreadTransitions. [2023-01-28 01:38:27,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 710 places, 857 transitions, 1906 flow [2023-01-28 01:39:37,623 INFO L130 PetriNetUnfolder]: 53929/151109 cut-off events. [2023-01-28 01:39:37,624 INFO L131 PetriNetUnfolder]: For 49552/49615 co-relation queries the response was YES. [2023-01-28 01:39:53,830 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200538 conditions, 151109 events. 53929/151109 cut-off events. For 49552/49615 co-relation queries the response was YES. Maximal size of possible extension queue 1853. Compared 1912598 event pairs, 24930 based on Foata normal form. 0/133989 useless extension candidates. Maximal degree in co-relation 97530. Up to 24576 conditions per place. [2023-01-28 01:39:53,831 INFO L82 GeneralOperation]: Start removeDead. Operand has 710 places, 857 transitions, 1906 flow [2023-01-28 01:39:59,767 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 710 places, 857 transitions, 1906 flow [2023-01-28 01:39:59,767 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 01:39:59,767 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 710 places, 857 transitions, 1906 flow [2023-01-28 01:39:59,767 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 710 places, 857 transitions, 1906 flow [2023-01-28 01:39:59,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 710 places, 857 transitions, 1906 flow [2023-01-28 01:41:05,969 INFO L130 PetriNetUnfolder]: 53929/151109 cut-off events. [2023-01-28 01:41:05,969 INFO L131 PetriNetUnfolder]: For 49552/49615 co-relation queries the response was YES. [2023-01-28 01:41:20,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200538 conditions, 151109 events. 53929/151109 cut-off events. For 49552/49615 co-relation queries the response was YES. Maximal size of possible extension queue 1853. Compared 1912598 event pairs, 24930 based on Foata normal form. 0/133989 useless extension candidates. Maximal degree in co-relation 97530. Up to 24576 conditions per place. [2023-01-28 01:41:46,617 INFO L119 LiptonReduction]: Number of co-enabled transitions 595848 [2023-01-28 01:41:52,657 INFO L134 LiptonReduction]: Checked pairs total: 1365956 [2023-01-28 01:41:52,657 INFO L136 LiptonReduction]: Total number of compositions: 611 [2023-01-28 01:41:52,659 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 01:41:52,660 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;@f7e5c29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 01:41:52,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-01-28 01:41:52,766 INFO L130 PetriNetUnfolder]: 405/1280 cut-off events. [2023-01-28 01:41:52,766 INFO L131 PetriNetUnfolder]: For 410/410 co-relation queries the response was YES. [2023-01-28 01:41:52,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 01:41:52,767 INFO L208 CegarLoopForPetriNet]: trace histogram [7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 01:41:52,767 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-01-28 01:41:52,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 01:41:52,767 INFO L85 PathProgramCache]: Analyzing trace with hash 199639450, now seen corresponding path program 1 times [2023-01-28 01:41:52,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 01:41:52,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958996879] [2023-01-28 01:41:52,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 01:41:52,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 01:41:52,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:41:52,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 01:41:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 01:41:52,807 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 01:41:52,808 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 01:41:52,808 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 2 remaining) [2023-01-28 01:41:52,808 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2023-01-28 01:41:52,808 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 01:41:52,808 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 01:41:52,809 INFO L307 ceAbstractionStarter]: Result for error location InUseError was UNSAFE,UNKNOWN (1/2) [2023-01-28 01:41:52,809 WARN L233 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-28 01:41:52,809 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2023-01-28 01:41:52,856 INFO L144 ThreadInstanceAdder]: Constructed 28 joinOtherThreadTransitions. [2023-01-28 01:41:52,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 814 places, 985 transitions, 2208 flow