/usr/bin/java -Xmx8000000000 -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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 15:52:41,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 15:52:41,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 15:52:41,100 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-18 15:52:41,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-18 15:52:41,101 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-18 15:52:41,102 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-18 15:52:41,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-18 15:52:41,104 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-18 15:52:41,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-18 15:52:41,105 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-18 15:52:41,106 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-18 15:52:41,106 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-18 15:52:41,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-18 15:52:41,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-18 15:52:41,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-18 15:52:41,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-18 15:52:41,121 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-18 15:52:41,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-18 15:52:41,123 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-18 15:52:41,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-18 15:52:41,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-18 15:52:41,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-18 15:52:41,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-18 15:52:41,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-18 15:52:41,135 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 15:52:41,136 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 15:52:41,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 15:52:41,140 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-FA-NoLbe.epf [2022-02-18 15:52:41,157 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 15:52:41,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 15:52:41,158 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 15:52:41,158 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 15:52:41,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 15:52:41,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 15:52:41,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 15:52:41,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 15:52:41,159 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 15:52:41,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 15:52:41,160 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 15:52:41,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 15:52:41,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 15:52:41,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 15:52:41,160 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 15:52:41,160 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 15:52:41,160 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 15:52:41,160 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 15:52:41,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 15:52:41,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 15:52:41,161 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 15:52:41,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 15:52:41,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 15:52:41,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 15:52:41,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 15:52:41,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 15:52:41,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 15:52:41,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 15:52:41,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 15:52:41,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 15:52:41,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 15:52:41,162 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 15:52:41,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 15:52:41,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 15:52:41,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 15:52:41,337 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 15:52:41,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 15:52:41,340 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-18 15:52:41,342 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-18 15:52:41,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl [2022-02-18 15:52:41,343 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_11.bpl' [2022-02-18 15:52:41,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 15:52:41,360 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-18 15:52:41,361 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 15:52:41,361 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 15:52:41,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 15:52:41,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,378 INFO L137 Inliner]: procedures = 12, calls = 11, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-18 15:52:41,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 15:52:41,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 15:52:41,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 15:52:41,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 15:52:41,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 15:52:41,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 15:52:41,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 15:52:41,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 15:52:41,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/1) ... [2022-02-18 15:52:41,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 15:52:41,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 15:52:41,419 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) [2022-02-18 15:52:41,423 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 [2022-02-18 15:52:41,442 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-02-18 15:52:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-02-18 15:52:41,442 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-02-18 15:52:41,442 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-02-18 15:52:41,442 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-02-18 15:52:41,442 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-02-18 15:52:41,442 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-02-18 15:52:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-02-18 15:52:41,443 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-02-18 15:52:41,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-02-18 15:52:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-02-18 15:52:41,443 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-02-18 15:52:41,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-02-18 15:52:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-02-18 15:52:41,443 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-02-18 15:52:41,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2022-02-18 15:52:41,443 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2022-02-18 15:52:41,443 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2022-02-18 15:52:41,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-18 15:52:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 15:52:41,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 15:52:41,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-02-18 15:52:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-02-18 15:52:41,444 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-02-18 15:52:41,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-02-18 15:52:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-02-18 15:52:41,444 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-02-18 15:52:41,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2022-02-18 15:52:41,444 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2022-02-18 15:52:41,444 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2022-02-18 15:52:41,445 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-02-18 15:52:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-02-18 15:52:41,445 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-02-18 15:52:41,445 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2022-02-18 15:52:41,445 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2022-02-18 15:52:41,445 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2022-02-18 15:52:41,445 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 15:52:41,480 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 15:52:41,481 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 15:52:41,544 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 15:52:41,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 15:52:41,549 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-18 15:52:41,551 INFO L202 PluginConnector]: Adding new model example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:52:41 BoogieIcfgContainer [2022-02-18 15:52:41,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 15:52:41,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 15:52:41,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 15:52:41,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 15:52:41,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 03:52:41" (1/2) ... [2022-02-18 15:52:41,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b6f2248 and model type example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 03:52:41, skipping insertion in model container [2022-02-18 15:52:41,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_11.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 03:52:41" (2/2) ... [2022-02-18 15:52:41,556 INFO L111 eAbstractionObserver]: Analyzing ICFG example_11.bpl [2022-02-18 15:52:41,559 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 15:52:41,559 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 15:52:41,559 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 15:52:41,559 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 15:52:41,657 INFO L148 ThreadInstanceAdder]: Constructed 121 joinOtherThreadTransitions. [2022-02-18 15:52:41,688 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 15:52:41,693 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 15:52:41,693 INFO L340 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-02-18 15:52:41,703 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 92 places, 168 transitions, 754 flow