/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 20:36:36,559 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 20:36:36,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 20:36:36,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 20:36:36,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 20:36:36,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 20:36:36,637 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 20:36:36,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 20:36:36,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 20:36:36,645 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 20:36:36,646 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 20:36:36,647 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-15 20:36:36,647 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-15 20:36:36,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-15 20:36:36,650 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-15 20:36:36,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-15 20:36:36,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-15 20:36:36,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-15 20:36:36,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-15 20:36:36,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-15 20:36:36,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-15 20:36:36,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-15 20:36:36,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-15 20:36:36,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-15 20:36:36,670 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-15 20:36:36,678 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 20:36:36,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 20:36:36,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 20:36:36,679 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 20:36:36,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 20:36:36,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 20:36:36,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 20:36:36,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 20:36:36,709 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 20:36:36,709 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 20:36:36,709 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 20:36:36,709 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 20:36:36,709 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 20:36:36,709 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 20:36:36,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 20:36:36,710 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 20:36:36,710 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 20:36:36,710 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 20:36:36,710 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 20:36:36,711 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 20:36:36,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 20:36:36,711 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 20:36:36,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 20:36:36,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 20:36:36,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 20:36:36,711 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 20:36:36,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 20:36:36,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:36:36,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 20:36:36,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 20:36:36,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 20:36:36,713 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 20:36:36,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 20:36:36,713 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 20:36:36,713 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 20:36:36,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 20:36:36,714 INFO L138 SettingsManager]: * Interpolant automaton=MCR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 20:36:36,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 20:36:36,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 20:36:36,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 20:36:36,906 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 20:36:36,909 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 20:36:36,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl [2022-03-15 20:36:36,910 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_13.bpl' [2022-03-15 20:36:36,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 20:36:36,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 20:36:36,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 20:36:36,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 20:36:36,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 20:36:36,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,964 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,968 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 20:36:36,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 20:36:36,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 20:36:36,973 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 20:36:36,973 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 20:36:36,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 20:36:36,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 20:36:36,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 20:36:36,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 20:36:36,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/1) ... [2022-03-15 20:36:36,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 20:36:37,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 20:36:37,016 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) [2022-03-15 20:36:37,025 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 [2022-03-15 20:36:37,049 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-03-15 20:36:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-03-15 20:36:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-03-15 20:36:37,049 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-03-15 20:36:37,049 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-03-15 20:36:37,049 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-03-15 20:36:37,050 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-03-15 20:36:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-03-15 20:36:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-03-15 20:36:37,050 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-03-15 20:36:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-03-15 20:36:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-03-15 20:36:37,050 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-03-15 20:36:37,050 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-03-15 20:36:37,050 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-03-15 20:36:37,051 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_9 given in one single declaration [2022-03-15 20:36:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure set_9 [2022-03-15 20:36:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure set_9 [2022-03-15 20:36:37,051 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 20:36:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 20:36:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 20:36:37,051 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_12 given in one single declaration [2022-03-15 20:36:37,051 INFO L130 BoogieDeclarations]: Found specification of procedure set_12 [2022-03-15 20:36:37,051 INFO L138 BoogieDeclarations]: Found implementation of procedure set_12 [2022-03-15 20:36:37,051 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-03-15 20:36:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-03-15 20:36:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-03-15 20:36:37,052 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-03-15 20:36:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-03-15 20:36:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-03-15 20:36:37,052 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_10 given in one single declaration [2022-03-15 20:36:37,052 INFO L130 BoogieDeclarations]: Found specification of procedure set_10 [2022-03-15 20:36:37,052 INFO L138 BoogieDeclarations]: Found implementation of procedure set_10 [2022-03-15 20:36:37,052 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_7 given in one single declaration [2022-03-15 20:36:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_7 [2022-03-15 20:36:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure set_7 [2022-03-15 20:36:37,053 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_11 given in one single declaration [2022-03-15 20:36:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_11 [2022-03-15 20:36:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure set_11 [2022-03-15 20:36:37,053 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_8 given in one single declaration [2022-03-15 20:36:37,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_8 [2022-03-15 20:36:37,053 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8 [2022-03-15 20:36:37,054 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 20:36:37,091 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 20:36:37,092 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 20:36:37,177 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 20:36:37,184 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 20:36:37,184 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 20:36:37,185 INFO L202 PluginConnector]: Adding new model example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:36:37 BoogieIcfgContainer [2022-03-15 20:36:37,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 20:36:37,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 20:36:37,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 20:36:37,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 20:36:37,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 08:36:36" (1/2) ... [2022-03-15 20:36:37,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dfdffa5 and model type example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 08:36:37, skipping insertion in model container [2022-03-15 20:36:37,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 08:36:37" (2/2) ... [2022-03-15 20:36:37,191 INFO L111 eAbstractionObserver]: Analyzing ICFG example_13.bpl [2022-03-15 20:36:37,195 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 20:36:37,195 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 20:36:37,195 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 20:36:37,195 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 20:36:37,322 INFO L148 ThreadInstanceAdder]: Constructed 169 joinOtherThreadTransitions. [2022-03-15 20:36:37,365 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 20:36:37,377 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 20:36:37,377 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2022-03-15 20:36:37,392 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 20:36:37,400 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 108 places, 224 transitions, 1020 flow [2022-03-15 20:36:37,402 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 108 places, 224 transitions, 1020 flow [2022-03-15 20:36:37,404 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 108 places, 224 transitions, 1020 flow [2022-03-15 20:36:41,658 INFO L129 PetriNetUnfolder]: 45057/53290 cut-off events. [2022-03-15 20:36:41,658 INFO L130 PetriNetUnfolder]: For 53248/53248 co-relation queries the response was YES. [2022-03-15 20:36:41,906 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106578 conditions, 53290 events. 45057/53290 cut-off events. For 53248/53248 co-relation queries the response was YES. Maximal size of possible extension queue 1912. Compared 212694 event pairs, 0 based on Foata normal form. 0/53289 useless extension candidates. Maximal degree in co-relation 49214. Up to 12012 conditions per place. [2022-03-15 20:36:42,555 INFO L116 LiptonReduction]: Number of co-enabled transitions 8424 [2022-03-15 20:36:42,779 INFO L131 LiptonReduction]: Checked pairs total: 47554 [2022-03-15 20:36:42,780 INFO L133 LiptonReduction]: Total number of compositions: 14 [2022-03-15 20:36:42,789 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 210 transitions, 992 flow