./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:11:17,814 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:11:17,902 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:11:17,909 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:11:17,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:11:17,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:11:17,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:11:17,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:11:17,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:11:17,950 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:11:17,951 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:11:17,951 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:11:17,952 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:11:17,952 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:11:17,954 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:11:17,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:11:17,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:11:17,955 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:11:17,955 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:11:17,955 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:11:17,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:11:17,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:11:17,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:11:17,958 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:11:17,960 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:11:17,961 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:11:17,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:11:17,961 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:11:17,961 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:11:17,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:11:17,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:11:17,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:11:17,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:11:17,962 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:11:17,963 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:11:17,963 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:11:17,963 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:11:17,963 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:11:17,964 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:11:17,965 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:11:17,965 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:11:17,965 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:11:17,966 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b278c8af08551c2e27294e2c5dca8c5bd0f6f00874366f88466c32210c557af [2024-11-16 19:11:18,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:11:18,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:11:18,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:11:18,262 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:11:18,262 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:11:18,263 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2024-11-16 19:11:19,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:11:20,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:11:20,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i [2024-11-16 19:11:20,060 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9349f0799/524048dc691e4f129d364b9fbb09d83d/FLAG080aad142 [2024-11-16 19:11:20,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9349f0799/524048dc691e4f129d364b9fbb09d83d [2024-11-16 19:11:20,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:11:20,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:11:20,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:11:20,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:11:20,086 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:11:20,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,087 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e700ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20, skipping insertion in model container [2024-11-16 19:11:20,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,132 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:11:20,341 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2024-11-16 19:11:20,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:11:20,572 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:11:20,586 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix029_power.opt_pso.opt_rmo.opt.i[966,979] [2024-11-16 19:11:20,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:11:20,670 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:11:20,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20 WrapperNode [2024-11-16 19:11:20,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:11:20,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:11:20,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:11:20,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:11:20,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,732 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 146 [2024-11-16 19:11:20,736 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:11:20,737 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:11:20,737 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:11:20,737 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:11:20,745 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,745 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,749 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,771 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 19:11:20,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,772 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,779 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,780 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,782 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,784 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,787 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:11:20,788 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:11:20,788 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:11:20,788 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:11:20,789 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (1/1) ... [2024-11-16 19:11:20,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:11:20,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:11:20,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 19:11:20,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 19:11:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:11:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:11:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:11:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:11:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:11:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:11:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-16 19:11:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-16 19:11:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-16 19:11:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-16 19:11:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:11:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:11:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:11:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:11:20,909 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:11:21,084 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:11:21,087 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:11:21,456 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:11:21,456 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:11:21,785 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:11:21,786 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:11:21,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:11:21 BoogieIcfgContainer [2024-11-16 19:11:21,789 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:11:21,790 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:11:21,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:11:21,794 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:11:21,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:11:20" (1/3) ... [2024-11-16 19:11:21,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27644942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:11:21, skipping insertion in model container [2024-11-16 19:11:21,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:11:20" (2/3) ... [2024-11-16 19:11:21,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27644942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:11:21, skipping insertion in model container [2024-11-16 19:11:21,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:11:21" (3/3) ... [2024-11-16 19:11:21,798 INFO L112 eAbstractionObserver]: Analyzing ICFG mix029_power.opt_pso.opt_rmo.opt.i [2024-11-16 19:11:21,815 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:11:21,815 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:11:21,815 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:11:21,875 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:11:21,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-16 19:11:21,949 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-16 19:11:21,950 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:11:21,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 95 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-16 19:11:21,958 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-16 19:11:21,961 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-16 19:11:21,971 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:11:21,981 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@57bb517b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:11:21,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-16 19:11:21,988 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:11:21,990 INFO L124 PetriNetUnfolderBase]: 0/16 cut-off events. [2024-11-16 19:11:21,990 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:11:21,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:11:21,991 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:11:21,991 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:11:21,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:11:21,997 INFO L85 PathProgramCache]: Analyzing trace with hash 184455957, now seen corresponding path program 1 times [2024-11-16 19:11:22,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:11:22,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401826544] [2024-11-16 19:11:22,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:11:22,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:11:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:11:22,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:11:22,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:11:22,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401826544] [2024-11-16 19:11:22,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401826544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:11:22,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:11:22,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 19:11:22,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602687317] [2024-11-16 19:11:22,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:11:22,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:11:22,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:11:22,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:11:22,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:11:22,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-16 19:11:22,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:22,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:11:22,594 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-16 19:11:22,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:11:28,891 INFO L124 PetriNetUnfolderBase]: 45383/60000 cut-off events. [2024-11-16 19:11:28,891 INFO L125 PetriNetUnfolderBase]: For 244/244 co-relation queries the response was YES. [2024-11-16 19:11:29,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 120032 conditions, 60000 events. 45383/60000 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 1728. Compared 353625 event pairs, 5723 based on Foata normal form. 1512/61457 useless extension candidates. Maximal degree in co-relation 120020. Up to 51361 conditions per place. [2024-11-16 19:11:29,292 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 59 selfloop transitions, 2 changer transitions 2/69 dead transitions. [2024-11-16 19:11:29,293 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 69 transitions, 279 flow [2024-11-16 19:11:29,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:11:29,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:11:29,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-16 19:11:29,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6530612244897959 [2024-11-16 19:11:29,306 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 96 transitions. [2024-11-16 19:11:29,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 69 transitions, 279 flow [2024-11-16 19:11:29,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 69 transitions, 274 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-16 19:11:29,319 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-16 19:11:29,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-16 19:11:29,325 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-16 19:11:29,326 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-16 19:11:29,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:29,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:11:29,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:11:29,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:11:29,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:11:29,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:11:29,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2073210705, now seen corresponding path program 1 times [2024-11-16 19:11:29,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:11:29,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332680926] [2024-11-16 19:11:29,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:11:29,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:11:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:11:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:11:29,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:11:29,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332680926] [2024-11-16 19:11:29,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332680926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:11:29,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:11:29,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:11:29,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173766458] [2024-11-16 19:11:29,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:11:29,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:11:29,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:11:29,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:11:29,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:11:29,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:11:29,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:29,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:11:29,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:11:29,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:11:35,152 INFO L124 PetriNetUnfolderBase]: 58115/77967 cut-off events. [2024-11-16 19:11:35,153 INFO L125 PetriNetUnfolderBase]: For 2952/2952 co-relation queries the response was YES. [2024-11-16 19:11:35,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157929 conditions, 77967 events. 58115/77967 cut-off events. For 2952/2952 co-relation queries the response was YES. Maximal size of possible extension queue 2329. Compared 472765 event pairs, 12491 based on Foata normal form. 0/76500 useless extension candidates. Maximal degree in co-relation 157919. Up to 50173 conditions per place. [2024-11-16 19:11:35,537 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 52 selfloop transitions, 3 changer transitions 95/155 dead transitions. [2024-11-16 19:11:35,537 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 155 transitions, 636 flow [2024-11-16 19:11:35,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:11:35,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:11:35,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 224 transitions. [2024-11-16 19:11:35,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-16 19:11:35,540 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 8 states and 224 transitions. [2024-11-16 19:11:35,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 155 transitions, 636 flow [2024-11-16 19:11:35,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 155 transitions, 620 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:11:35,553 INFO L231 Difference]: Finished difference. Result has 63 places, 43 transitions, 125 flow [2024-11-16 19:11:35,553 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=125, PETRI_PLACES=63, PETRI_TRANSITIONS=43} [2024-11-16 19:11:35,555 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-16 19:11:35,556 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 43 transitions, 125 flow [2024-11-16 19:11:35,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:35,557 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:11:35,557 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:11:35,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:11:35,557 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:11:35,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:11:35,558 INFO L85 PathProgramCache]: Analyzing trace with hash -622087218, now seen corresponding path program 1 times [2024-11-16 19:11:35,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:11:35,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074057103] [2024-11-16 19:11:35,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:11:35,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:11:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:11:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:11:36,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:11:36,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074057103] [2024-11-16 19:11:36,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074057103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:11:36,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:11:36,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:11:36,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919472774] [2024-11-16 19:11:36,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:11:36,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:11:36,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:11:36,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:11:36,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:11:36,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:11:36,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 43 transitions, 125 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:36,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:11:36,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:11:36,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:11:42,100 INFO L124 PetriNetUnfolderBase]: 50195/67311 cut-off events. [2024-11-16 19:11:42,100 INFO L125 PetriNetUnfolderBase]: For 24609/24609 co-relation queries the response was YES. [2024-11-16 19:11:42,312 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154334 conditions, 67311 events. 50195/67311 cut-off events. For 24609/24609 co-relation queries the response was YES. Maximal size of possible extension queue 1951. Compared 402287 event pairs, 9671 based on Foata normal form. 1620/68904 useless extension candidates. Maximal degree in co-relation 154319. Up to 38389 conditions per place. [2024-11-16 19:11:42,545 INFO L140 encePairwiseOnDemand]: 37/49 looper letters, 69 selfloop transitions, 9 changer transitions 107/190 dead transitions. [2024-11-16 19:11:42,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 190 transitions, 855 flow [2024-11-16 19:11:42,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 19:11:42,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 19:11:42,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 276 transitions. [2024-11-16 19:11:42,551 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.563265306122449 [2024-11-16 19:11:42,553 INFO L175 Difference]: Start difference. First operand has 63 places, 43 transitions, 125 flow. Second operand 10 states and 276 transitions. [2024-11-16 19:11:42,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 190 transitions, 855 flow [2024-11-16 19:11:44,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 190 transitions, 832 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-16 19:11:44,115 INFO L231 Difference]: Finished difference. Result has 72 places, 50 transitions, 226 flow [2024-11-16 19:11:44,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=226, PETRI_PLACES=72, PETRI_TRANSITIONS=50} [2024-11-16 19:11:44,116 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 15 predicate places. [2024-11-16 19:11:44,116 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 50 transitions, 226 flow [2024-11-16 19:11:44,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:44,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:11:44,117 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:11:44,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:11:44,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:11:44,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:11:44,118 INFO L85 PathProgramCache]: Analyzing trace with hash -432149956, now seen corresponding path program 1 times [2024-11-16 19:11:44,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:11:44,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593174108] [2024-11-16 19:11:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:11:44,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:11:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:11:44,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:11:44,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:11:44,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593174108] [2024-11-16 19:11:44,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593174108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:11:44,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:11:44,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:11:44,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317609333] [2024-11-16 19:11:44,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:11:44,697 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 19:11:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:11:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 19:11:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 19:11:44,700 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:11:44,700 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 50 transitions, 226 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:44,700 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:11:44,701 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:11:44,701 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:11:49,823 INFO L124 PetriNetUnfolderBase]: 46883/63187 cut-off events. [2024-11-16 19:11:49,823 INFO L125 PetriNetUnfolderBase]: For 107494/107494 co-relation queries the response was YES. [2024-11-16 19:11:50,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 198668 conditions, 63187 events. 46883/63187 cut-off events. For 107494/107494 co-relation queries the response was YES. Maximal size of possible extension queue 1779. Compared 375449 event pairs, 14127 based on Foata normal form. 1254/64428 useless extension candidates. Maximal degree in co-relation 198645. Up to 50935 conditions per place. [2024-11-16 19:11:50,337 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 64 selfloop transitions, 3 changer transitions 75/147 dead transitions. [2024-11-16 19:11:50,338 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 147 transitions, 912 flow [2024-11-16 19:11:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 19:11:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-16 19:11:50,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2024-11-16 19:11:50,339 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5481049562682215 [2024-11-16 19:11:50,340 INFO L175 Difference]: Start difference. First operand has 72 places, 50 transitions, 226 flow. Second operand 7 states and 188 transitions. [2024-11-16 19:11:50,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 147 transitions, 912 flow [2024-11-16 19:11:53,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 147 transitions, 887 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-11-16 19:11:53,850 INFO L231 Difference]: Finished difference. Result has 72 places, 52 transitions, 245 flow [2024-11-16 19:11:53,850 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=245, PETRI_PLACES=72, PETRI_TRANSITIONS=52} [2024-11-16 19:11:53,851 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 15 predicate places. [2024-11-16 19:11:53,851 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 52 transitions, 245 flow [2024-11-16 19:11:53,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:53,851 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:11:53,851 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:11:53,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:11:53,851 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:11:53,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:11:53,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1123902434, now seen corresponding path program 1 times [2024-11-16 19:11:53,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:11:53,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942438533] [2024-11-16 19:11:53,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:11:53,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:11:53,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:11:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:11:55,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:11:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942438533] [2024-11-16 19:11:55,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942438533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:11:55,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:11:55,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:11:55,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256359294] [2024-11-16 19:11:55,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:11:55,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:11:55,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:11:55,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:11:55,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:11:55,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:11:55,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 52 transitions, 245 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:11:55,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:11:55,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:11:55,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:12:01,553 INFO L124 PetriNetUnfolderBase]: 53381/71425 cut-off events. [2024-11-16 19:12:01,554 INFO L125 PetriNetUnfolderBase]: For 150448/150448 co-relation queries the response was YES. [2024-11-16 19:12:01,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 242554 conditions, 71425 events. 53381/71425 cut-off events. For 150448/150448 co-relation queries the response was YES. Maximal size of possible extension queue 1939. Compared 421711 event pairs, 9647 based on Foata normal form. 1308/72720 useless extension candidates. Maximal degree in co-relation 242529. Up to 46431 conditions per place. [2024-11-16 19:12:02,193 INFO L140 encePairwiseOnDemand]: 34/49 looper letters, 109 selfloop transitions, 44 changer transitions 84/242 dead transitions. [2024-11-16 19:12:02,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 242 transitions, 1637 flow [2024-11-16 19:12:02,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 19:12:02,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-16 19:12:02,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 298 transitions. [2024-11-16 19:12:02,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6081632653061224 [2024-11-16 19:12:02,195 INFO L175 Difference]: Start difference. First operand has 72 places, 52 transitions, 245 flow. Second operand 10 states and 298 transitions. [2024-11-16 19:12:02,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 242 transitions, 1637 flow [2024-11-16 19:12:03,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 242 transitions, 1622 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-11-16 19:12:03,258 INFO L231 Difference]: Finished difference. Result has 82 places, 89 transitions, 749 flow [2024-11-16 19:12:03,258 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=749, PETRI_PLACES=82, PETRI_TRANSITIONS=89} [2024-11-16 19:12:03,259 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 25 predicate places. [2024-11-16 19:12:03,259 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 89 transitions, 749 flow [2024-11-16 19:12:03,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:12:03,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:12:03,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:12:03,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:12:03,263 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-16 19:12:03,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:12:03,264 INFO L85 PathProgramCache]: Analyzing trace with hash -849738402, now seen corresponding path program 2 times [2024-11-16 19:12:03,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:12:03,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078121804] [2024-11-16 19:12:03,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:12:03,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:12:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:12:04,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:12:04,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:12:04,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078121804] [2024-11-16 19:12:04,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078121804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:12:04,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:12:04,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 19:12:04,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491860339] [2024-11-16 19:12:04,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:12:04,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:12:04,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:12:04,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:12:04,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:12:04,392 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-16 19:12:04,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 89 transitions, 749 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:12:04,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:12:04,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-16 19:12:04,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand