./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix026.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/mix026.oepc.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 a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:13:40,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:13:40,534 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 10:13:40,538 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:13:40,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:13:40,553 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:13:40,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:13:40,554 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:13:40,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:13:40,554 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:13:40,555 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:13:40,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:13:40,555 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:13:40,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:13:40,556 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:13:40,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:13:40,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:13:40,557 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 10:13:40,557 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:13:40,557 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 10:13:40,558 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:13:40,558 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:13:40,559 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:13:40,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:13:40,559 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:13:40,559 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 10:13:40,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:13:40,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:13:40,560 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:13:40,561 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:13:40,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:13:40,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:13:40,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:13:40,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:13:40,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:13:40,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:13:40,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:13:40,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:13:40,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:13:40,563 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:13:40,563 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:13:40,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:13:40,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a107688f8a9743f96e4ba7fbbac745d7f444b48f461db6b6c74848593b202e05 [2024-11-10 10:13:40,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:13:40,824 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:13:40,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:13:40,828 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:13:40,830 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:13:40,831 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2024-11-10 10:13:42,283 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:13:42,520 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:13:42,521 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix026.oepc.i [2024-11-10 10:13:42,537 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ce9aeef/169874bf3faf42d3a2b9bc006302c543/FLAGafe7ae39c [2024-11-10 10:13:42,552 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9ce9aeef/169874bf3faf42d3a2b9bc006302c543 [2024-11-10 10:13:42,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:13:42,555 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:13:42,560 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:13:42,560 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:13:42,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:13:42,566 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:13:42" (1/1) ... [2024-11-10 10:13:42,567 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7965df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:42, skipping insertion in model container [2024-11-10 10:13:42,567 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:13:42" (1/1) ... [2024-11-10 10:13:42,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:13:42,857 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/mix026.oepc.i[945,958] [2024-11-10 10:13:43,032 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:13:43,042 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:13:43,052 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/mix026.oepc.i[945,958] [2024-11-10 10:13:43,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:13:43,146 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:13:43,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43 WrapperNode [2024-11-10 10:13:43,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:13:43,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:13:43,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:13:43,148 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:13:43,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,215 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 128 [2024-11-10 10:13:43,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:13:43,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:13:43,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:13:43,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:13:43,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,230 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,245 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]. [2024-11-10 10:13:43,245 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,246 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,253 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,254 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:13:43,271 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:13:43,271 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:13:43,271 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:13:43,272 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (1/1) ... [2024-11-10 10:13:43,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:13:43,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:13:43,313 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) [2024-11-10 10:13:43,316 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 [2024-11-10 10:13:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 10:13:43,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:13:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-10 10:13:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-10 10:13:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-10 10:13:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-10 10:13:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-10 10:13:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-10 10:13:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-10 10:13:43,370 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-10 10:13:43,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:13:43,371 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 10:13:43,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:13:43,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:13:43,373 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 10:13:43,506 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:13:43,508 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:13:43,794 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 10:13:43,794 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:13:44,036 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:13:44,039 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:13:44,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:13:44 BoogieIcfgContainer [2024-11-10 10:13:44,040 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:13:44,042 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:13:44,042 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:13:44,047 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:13:44,048 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:13:42" (1/3) ... [2024-11-10 10:13:44,048 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e48fd03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:13:44, skipping insertion in model container [2024-11-10 10:13:44,049 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:13:43" (2/3) ... [2024-11-10 10:13:44,049 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e48fd03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:13:44, skipping insertion in model container [2024-11-10 10:13:44,050 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:13:44" (3/3) ... [2024-11-10 10:13:44,051 INFO L112 eAbstractionObserver]: Analyzing ICFG mix026.oepc.i [2024-11-10 10:13:44,068 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:13:44,068 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-10 10:13:44,069 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 10:13:44,168 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 10:13:44,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-10 10:13:44,236 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-10 10:13:44,236 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:13:44,241 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 5. Compared 97 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. [2024-11-10 10:13:44,241 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-10 10:13:44,244 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-10 10:13:44,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:13:44,258 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;@7652082c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:13:44,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-10 10:13:44,261 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 10:13:44,262 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-10 10:13:44,262 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 10:13:44,262 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:13:44,263 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 10:13:44,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:13:44,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:13:44,268 INFO L85 PathProgramCache]: Analyzing trace with hash 13275786, now seen corresponding path program 1 times [2024-11-10 10:13:44,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:13:44,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660849743] [2024-11-10 10:13:44,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:13:44,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:13:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:13:44,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:13:44,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:13:44,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660849743] [2024-11-10 10:13:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660849743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:13:44,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:13:44,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 10:13:44,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751647579] [2024-11-10 10:13:44,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:13:44,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:13:44,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:13:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:13:44,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:13:44,723 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-10 10:13:44,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-10 10:13:44,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:13:44,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-10 10:13:44,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:13:50,403 INFO L124 PetriNetUnfolderBase]: 45383/59916 cut-off events. [2024-11-10 10:13:50,403 INFO L125 PetriNetUnfolderBase]: For 249/249 co-relation queries the response was YES. [2024-11-10 10:13:50,544 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119948 conditions, 59916 events. 45383/59916 cut-off events. For 249/249 co-relation queries the response was YES. Maximal size of possible extension queue 1771. Compared 361111 event pairs, 5603 based on Foata normal form. 1512/61377 useless extension candidates. Maximal degree in co-relation 119936. Up to 51551 conditions per place. [2024-11-10 10:13:50,992 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 63 selfloop transitions, 2 changer transitions 2/73 dead transitions. [2024-11-10 10:13:50,992 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 73 transitions, 301 flow [2024-11-10 10:13:50,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:13:50,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 10:13:51,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 100 transitions. [2024-11-10 10:13:51,001 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6802721088435374 [2024-11-10 10:13:51,002 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 100 transitions. [2024-11-10 10:13:51,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 73 transitions, 301 flow [2024-11-10 10:13:51,007 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 73 transitions, 294 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 10:13:51,009 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-10 10:13:51,011 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} [2024-11-10 10:13:51,014 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-10 10:13:51,014 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-10 10:13:51,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-11-10 10:13:51,014 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:13:51,015 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:13:51,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:13:51,015 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:13:51,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:13:51,016 INFO L85 PathProgramCache]: Analyzing trace with hash -65051935, now seen corresponding path program 1 times [2024-11-10 10:13:51,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:13:51,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803058719] [2024-11-10 10:13:51,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:13:51,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:13:51,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:13:51,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:13:51,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:13:51,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803058719] [2024-11-10 10:13:51,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803058719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:13:51,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:13:51,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:13:51,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989321869] [2024-11-10 10:13:51,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:13:51,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:13:51,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:13:51,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:13:51,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:13:51,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-10 10:13:51,224 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) [2024-11-10 10:13:51,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:13:51,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-10 10:13:51,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:13:58,244 INFO L124 PetriNetUnfolderBase]: 53483/71555 cut-off events. [2024-11-10 10:13:58,244 INFO L125 PetriNetUnfolderBase]: For 2822/2822 co-relation queries the response was YES. [2024-11-10 10:13:58,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145315 conditions, 71555 events. 53483/71555 cut-off events. For 2822/2822 co-relation queries the response was YES. Maximal size of possible extension queue 2079. Compared 426158 event pairs, 9851 based on Foata normal form. 0/70384 useless extension candidates. Maximal degree in co-relation 145305. Up to 37153 conditions per place. [2024-11-10 10:13:58,564 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 53 selfloop transitions, 2 changer transitions 97/157 dead transitions. [2024-11-10 10:13:58,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 157 transitions, 642 flow [2024-11-10 10:13:58,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 10:13:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-10 10:13:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 226 transitions. [2024-11-10 10:13:58,566 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.576530612244898 [2024-11-10 10:13:58,566 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 8 states and 226 transitions. [2024-11-10 10:13:58,566 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 157 transitions, 642 flow [2024-11-10 10:13:58,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 157 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 10:13:58,573 INFO L231 Difference]: Finished difference. Result has 63 places, 41 transitions, 106 flow [2024-11-10 10:13:58,573 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=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=106, PETRI_PLACES=63, PETRI_TRANSITIONS=41} [2024-11-10 10:13:58,574 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-10 10:13:58,574 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 41 transitions, 106 flow [2024-11-10 10:13:58,574 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) [2024-11-10 10:13:58,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:13:58,574 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:13:58,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:13:58,576 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:13:58,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:13:58,576 INFO L85 PathProgramCache]: Analyzing trace with hash 1734463364, now seen corresponding path program 1 times [2024-11-10 10:13:58,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:13:58,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365975054] [2024-11-10 10:13:58,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:13:58,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:13:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:13:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:13:58,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:13:58,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365975054] [2024-11-10 10:13:58,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365975054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:13:58,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:13:58,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:13:58,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379590885] [2024-11-10 10:13:58,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:13:58,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 10:13:58,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:13:58,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 10:13:58,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 10:13:58,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-10 10:13:58,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 41 transitions, 106 flow. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-10 10:13:58,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:13:58,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-10 10:13:58,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:14:02,149 INFO L124 PetriNetUnfolderBase]: 33511/45735 cut-off events. [2024-11-10 10:14:02,153 INFO L125 PetriNetUnfolderBase]: For 2848/2848 co-relation queries the response was YES. [2024-11-10 10:14:02,327 INFO L83 FinitePrefix]: Finished finitePrefix Result has 97714 conditions, 45735 events. 33511/45735 cut-off events. For 2848/2848 co-relation queries the response was YES. Maximal size of possible extension queue 1349. Compared 274203 event pairs, 4407 based on Foata normal form. 1512/47192 useless extension candidates. Maximal degree in co-relation 97699. Up to 26017 conditions per place. [2024-11-10 10:14:02,654 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 75 selfloop transitions, 6 changer transitions 1/87 dead transitions. [2024-11-10 10:14:02,655 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 87 transitions, 374 flow [2024-11-10 10:14:02,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 10:14:02,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 10:14:02,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-11-10 10:14:02,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6326530612244898 [2024-11-10 10:14:02,658 INFO L175 Difference]: Start difference. First operand has 63 places, 41 transitions, 106 flow. Second operand 4 states and 124 transitions. [2024-11-10 10:14:02,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 87 transitions, 374 flow [2024-11-10 10:14:03,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 87 transitions, 358 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-10 10:14:03,078 INFO L231 Difference]: Finished difference. Result has 56 places, 45 transitions, 136 flow [2024-11-10 10:14:03,079 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=56, PETRI_TRANSITIONS=45} [2024-11-10 10:14:03,079 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -1 predicate places. [2024-11-10 10:14:03,080 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 45 transitions, 136 flow [2024-11-10 10:14:03,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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) [2024-11-10 10:14:03,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:14:03,080 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, 1] [2024-11-10 10:14:03,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:14:03,081 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:14:03,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:14:03,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1500181856, now seen corresponding path program 1 times [2024-11-10 10:14:03,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:14:03,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346569331] [2024-11-10 10:14:03,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:14:03,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:14:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:14:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:14:03,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:14:03,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346569331] [2024-11-10 10:14:03,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346569331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:14:03,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:14:03,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 10:14:03,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353549461] [2024-11-10 10:14:03,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:14:03,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 10:14:03,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:14:03,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 10:14:03,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 10:14:03,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-10 10:14:03,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 45 transitions, 136 flow. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 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) [2024-11-10 10:14:03,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:14:03,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-10 10:14:03,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:14:05,407 INFO L124 PetriNetUnfolderBase]: 22087/30503 cut-off events. [2024-11-10 10:14:05,407 INFO L125 PetriNetUnfolderBase]: For 6296/6296 co-relation queries the response was YES. [2024-11-10 10:14:05,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70712 conditions, 30503 events. 22087/30503 cut-off events. For 6296/6296 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 174813 event pairs, 2563 based on Foata normal form. 1192/31648 useless extension candidates. Maximal degree in co-relation 70699. Up to 12193 conditions per place. [2024-11-10 10:14:05,616 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 97 selfloop transitions, 10 changer transitions 1/113 dead transitions. [2024-11-10 10:14:05,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 113 transitions, 520 flow [2024-11-10 10:14:05,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 10:14:05,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 10:14:05,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 160 transitions. [2024-11-10 10:14:05,618 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6530612244897959 [2024-11-10 10:14:05,618 INFO L175 Difference]: Start difference. First operand has 56 places, 45 transitions, 136 flow. Second operand 5 states and 160 transitions. [2024-11-10 10:14:05,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 113 transitions, 520 flow [2024-11-10 10:14:05,628 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 113 transitions, 509 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-10 10:14:05,630 INFO L231 Difference]: Finished difference. Result has 60 places, 49 transitions, 188 flow [2024-11-10 10:14:05,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=188, PETRI_PLACES=60, PETRI_TRANSITIONS=49} [2024-11-10 10:14:05,631 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-11-10 10:14:05,633 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 188 flow [2024-11-10 10:14:05,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 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) [2024-11-10 10:14:05,633 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:14:05,633 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, 1, 1, 1, 1, 1, 1] [2024-11-10 10:14:05,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 10:14:05,634 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:14:05,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:14:05,634 INFO L85 PathProgramCache]: Analyzing trace with hash -777406281, now seen corresponding path program 1 times [2024-11-10 10:14:05,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:14:05,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127353149] [2024-11-10 10:14:05,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:14:05,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:14:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:14:06,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:14:06,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:14:06,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127353149] [2024-11-10 10:14:06,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127353149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:14:06,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:14:06,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 10:14:06,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777664838] [2024-11-10 10:14:06,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:14:06,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:14:06,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:14:06,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:14:06,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:14:06,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 49 [2024-11-10 10:14:06,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 188 flow. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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) [2024-11-10 10:14:06,502 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:14:06,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 49 [2024-11-10 10:14:06,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 10:14:11,589 INFO L124 PetriNetUnfolderBase]: 39069/53604 cut-off events. [2024-11-10 10:14:11,589 INFO L125 PetriNetUnfolderBase]: For 33412/33412 co-relation queries the response was YES. [2024-11-10 10:14:11,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136559 conditions, 53604 events. 39069/53604 cut-off events. For 33412/33412 co-relation queries the response was YES. Maximal size of possible extension queue 1329. Compared 325736 event pairs, 12896 based on Foata normal form. 284/53859 useless extension candidates. Maximal degree in co-relation 136544. Up to 25668 conditions per place. [2024-11-10 10:14:12,101 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 122 selfloop transitions, 13 changer transitions 83/223 dead transitions. [2024-11-10 10:14:12,101 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 223 transitions, 1298 flow [2024-11-10 10:14:12,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:14:12,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 10:14:12,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 274 transitions. [2024-11-10 10:14:12,103 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5591836734693878 [2024-11-10 10:14:12,103 INFO L175 Difference]: Start difference. First operand has 60 places, 49 transitions, 188 flow. Second operand 10 states and 274 transitions. [2024-11-10 10:14:12,103 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 223 transitions, 1298 flow [2024-11-10 10:14:12,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 223 transitions, 1181 flow, removed 23 selfloop flow, removed 4 redundant places. [2024-11-10 10:14:12,389 INFO L231 Difference]: Finished difference. Result has 72 places, 61 transitions, 245 flow [2024-11-10 10:14:12,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=245, PETRI_PLACES=72, PETRI_TRANSITIONS=61} [2024-11-10 10:14:12,390 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 15 predicate places. [2024-11-10 10:14:12,390 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 61 transitions, 245 flow [2024-11-10 10:14:12,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 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) [2024-11-10 10:14:12,391 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 10:14:12,391 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, 1, 1, 1, 1, 1, 1] [2024-11-10 10:14:12,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 10:14:12,391 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-10 10:14:12,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:14:12,392 INFO L85 PathProgramCache]: Analyzing trace with hash -162505143, now seen corresponding path program 2 times [2024-11-10 10:14:12,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:14:12,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601950448] [2024-11-10 10:14:12,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:14:12,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:14:12,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:14:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 10:14:12,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:14:12,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601950448] [2024-11-10 10:14:12,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601950448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:14:12,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:14:12,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-10 10:14:12,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753401549] [2024-11-10 10:14:12,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:14:12,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 10:14:12,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:14:12,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 10:14:12,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-10 10:14:12,626 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 49 [2024-11-10 10:14:12,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 61 transitions, 245 flow. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 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) [2024-11-10 10:14:12,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 10:14:12,626 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 49 [2024-11-10 10:14:12,626 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand