./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix043.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix043.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:01:41,094 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:01:41,143 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:01:41,148 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:01:41,149 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:01:41,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:01:41,163 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:01:41,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:01:41,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:01:41,164 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:01:41,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:01:41,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:01:41,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:01:41,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:01:41,164 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:01:41,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:01:41,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:01:41,164 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:01:41,165 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:01:41,165 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:01:41,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:01:41,166 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 8b566ddb7b309d9ba7ea7e298fcc3be9218751e5387d333007519a12118bc5db [2025-02-08 01:01:41,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:01:41,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:01:41,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:01:41,414 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:01:41,414 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:01:41,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix043.opt.i [2025-02-08 01:01:42,624 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/977534c40/f8748fb703974c47bae1bd953ed6b09b/FLAG1534ac669 [2025-02-08 01:01:42,900 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:01:42,901 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix043.opt.i [2025-02-08 01:01:42,913 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/977534c40/f8748fb703974c47bae1bd953ed6b09b/FLAG1534ac669 [2025-02-08 01:01:43,180 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/977534c40/f8748fb703974c47bae1bd953ed6b09b [2025-02-08 01:01:43,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:01:43,182 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:01:43,183 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:01:43,183 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:01:43,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:01:43,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fa84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43, skipping insertion in model container [2025-02-08 01:01:43,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,208 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:01:43,311 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix043.opt.i[944,957] [2025-02-08 01:01:43,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:01:43,428 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:01:43,438 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix043.opt.i[944,957] [2025-02-08 01:01:43,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:01:43,515 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:01:43,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43 WrapperNode [2025-02-08 01:01:43,516 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:01:43,517 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:01:43,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:01:43,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:01:43,522 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,549 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 154 [2025-02-08 01:01:43,550 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:01:43,550 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:01:43,550 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:01:43,551 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:01:43,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,568 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]. [2025-02-08 01:01:43,569 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,578 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,579 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,581 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:01:43,584 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:01:43,584 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:01:43,584 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:01:43,585 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (1/1) ... [2025-02-08 01:01:43,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:01:43,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:01:43,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 01:01:43,620 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 01:01:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 01:01:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 01:01:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 01:01:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 01:01:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:01:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:01:43,639 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:01:43,748 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:01:43,750 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:01:44,017 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:01:44,017 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:01:44,177 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:01:44,177 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:01:44,177 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:01:44 BoogieIcfgContainer [2025-02-08 01:01:44,177 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:01:44,180 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:01:44,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:01:44,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:01:44,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:01:43" (1/3) ... [2025-02-08 01:01:44,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb76920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:01:44, skipping insertion in model container [2025-02-08 01:01:44,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:01:43" (2/3) ... [2025-02-08 01:01:44,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb76920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:01:44, skipping insertion in model container [2025-02-08 01:01:44,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:01:44" (3/3) ... [2025-02-08 01:01:44,187 INFO L128 eAbstractionObserver]: Analyzing ICFG mix043.opt.i [2025-02-08 01:01:44,199 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:01:44,200 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix043.opt.i that has 5 procedures, 50 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-08 01:01:44,200 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:01:44,248 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 01:01:44,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2025-02-08 01:01:44,307 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-02-08 01:01:44,310 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:01:44,313 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 46 events. 1/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2025-02-08 01:01:44,313 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2025-02-08 01:01:44,317 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2025-02-08 01:01:44,323 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:01:44,332 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;@790d428b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:01:44,333 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-08 01:01:44,340 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:01:44,340 INFO L124 PetriNetUnfolderBase]: 0/27 cut-off events. [2025-02-08 01:01:44,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:01:44,340 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:01:44,340 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:01:44,341 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:01:44,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:01:44,344 INFO L85 PathProgramCache]: Analyzing trace with hash -217396457, now seen corresponding path program 1 times [2025-02-08 01:01:44,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:01:44,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339327820] [2025-02-08 01:01:44,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:01:44,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:01:44,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-08 01:01:44,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-08 01:01:44,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:01:44,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:01:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:01:44,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:01:44,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339327820] [2025-02-08 01:01:44,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339327820] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:01:44,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:01:44,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 01:01:44,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883482523] [2025-02-08 01:01:44,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:01:44,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 01:01:44,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:01:44,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 01:01:44,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 01:01:44,842 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 01:01:44,844 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2025-02-08 01:01:44,844 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:01:44,844 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 01:01:44,845 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:01:48,521 INFO L124 PetriNetUnfolderBase]: 46139/61187 cut-off events. [2025-02-08 01:01:48,522 INFO L125 PetriNetUnfolderBase]: For 220/220 co-relation queries the response was YES. [2025-02-08 01:01:48,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122191 conditions, 61187 events. 46139/61187 cut-off events. For 220/220 co-relation queries the response was YES. Maximal size of possible extension queue 1792. Compared 354745 event pairs, 5315 based on Foata normal form. 1728/62656 useless extension candidates. Maximal degree in co-relation 122179. Up to 52921 conditions per place. [2025-02-08 01:01:48,946 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 55 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2025-02-08 01:01:48,947 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 66 transitions, 262 flow [2025-02-08 01:01:48,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 01:01:48,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 01:01:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2025-02-08 01:01:48,957 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2025-02-08 01:01:48,958 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 95 transitions. [2025-02-08 01:01:48,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 66 transitions, 262 flow [2025-02-08 01:01:48,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 01:01:48,968 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2025-02-08 01:01:48,970 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2025-02-08 01:01:48,972 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2025-02-08 01:01:48,973 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2025-02-08 01:01:48,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 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) [2025-02-08 01:01:48,973 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:01:48,973 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:01:48,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:01:48,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:01:48,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:01:48,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1128654303, now seen corresponding path program 1 times [2025-02-08 01:01:48,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:01:48,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134927921] [2025-02-08 01:01:48,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:01:48,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:01:48,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:01:49,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:01:49,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:01:49,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:01:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:01:49,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:01:49,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134927921] [2025-02-08 01:01:49,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134927921] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:01:49,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:01:49,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:01:49,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363993599] [2025-02-08 01:01:49,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:01:49,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:01:49,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:01:49,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:01:49,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:01:49,334 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-08 01:01:49,334 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 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) [2025-02-08 01:01:49,335 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:01:49,335 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-08 01:01:49,335 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:01:53,339 INFO L124 PetriNetUnfolderBase]: 59315/79115 cut-off events. [2025-02-08 01:01:53,339 INFO L125 PetriNetUnfolderBase]: For 1728/1728 co-relation queries the response was YES. [2025-02-08 01:01:53,522 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159341 conditions, 79115 events. 59315/79115 cut-off events. For 1728/1728 co-relation queries the response was YES. Maximal size of possible extension queue 2174. Compared 470779 event pairs, 13415 based on Foata normal form. 0/77992 useless extension candidates. Maximal degree in co-relation 159331. Up to 37153 conditions per place. [2025-02-08 01:01:53,717 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 54 selfloop transitions, 2 changer transitions 99/160 dead transitions. [2025-02-08 01:01:53,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 160 transitions, 646 flow [2025-02-08 01:01:53,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:01:53,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:01:53,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2025-02-08 01:01:53,722 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5725 [2025-02-08 01:01:53,722 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 8 states and 229 transitions. [2025-02-08 01:01:53,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 160 transitions, 646 flow [2025-02-08 01:01:53,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 160 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 01:01:53,743 INFO L231 Difference]: Finished difference. Result has 64 places, 42 transitions, 108 flow [2025-02-08 01:01:53,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, 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=8, PETRI_FLOW=108, PETRI_PLACES=64, PETRI_TRANSITIONS=42} [2025-02-08 01:01:53,744 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2025-02-08 01:01:53,744 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 42 transitions, 108 flow [2025-02-08 01:01:53,744 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) [2025-02-08 01:01:53,744 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:01:53,744 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:01:53,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:01:53,744 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:01:53,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:01:53,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1806779942, now seen corresponding path program 1 times [2025-02-08 01:01:53,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:01:53,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243195541] [2025-02-08 01:01:53,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:01:53,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:01:53,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 01:01:53,789 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 01:01:53,789 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:01:53,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:01:54,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:01:54,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:01:54,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243195541] [2025-02-08 01:01:54,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243195541] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:01:54,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:01:54,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:01:54,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209068108] [2025-02-08 01:01:54,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:01:54,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:01:54,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:01:54,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:01:54,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:01:54,440 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-08 01:01:54,441 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 42 transitions, 108 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) [2025-02-08 01:01:54,441 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:01:54,441 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-08 01:01:54,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:01:57,770 INFO L124 PetriNetUnfolderBase]: 43943/59063 cut-off events. [2025-02-08 01:01:57,771 INFO L125 PetriNetUnfolderBase]: For 8640/8640 co-relation queries the response was YES. [2025-02-08 01:01:58,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 126802 conditions, 59063 events. 43943/59063 cut-off events. For 8640/8640 co-relation queries the response was YES. Maximal size of possible extension queue 1544. Compared 342331 event pairs, 9287 based on Foata normal form. 1080/60124 useless extension candidates. Maximal degree in co-relation 126787. Up to 42265 conditions per place. [2025-02-08 01:01:58,148 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 71 selfloop transitions, 5 changer transitions 69/150 dead transitions. [2025-02-08 01:01:58,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 150 transitions, 629 flow [2025-02-08 01:01:58,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:01:58,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:01:58,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 219 transitions. [2025-02-08 01:01:58,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5475 [2025-02-08 01:01:58,150 INFO L175 Difference]: Start difference. First operand has 64 places, 42 transitions, 108 flow. Second operand 8 states and 219 transitions. [2025-02-08 01:01:58,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 150 transitions, 629 flow [2025-02-08 01:01:59,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 150 transitions, 607 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-08 01:01:59,309 INFO L231 Difference]: Finished difference. Result has 65 places, 46 transitions, 140 flow [2025-02-08 01:01:59,309 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=140, PETRI_PLACES=65, PETRI_TRANSITIONS=46} [2025-02-08 01:01:59,310 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 7 predicate places. [2025-02-08 01:01:59,310 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 46 transitions, 140 flow [2025-02-08 01:01:59,310 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) [2025-02-08 01:01:59,311 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:01:59,311 INFO L206 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] [2025-02-08 01:01:59,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:01:59,311 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:01:59,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:01:59,312 INFO L85 PathProgramCache]: Analyzing trace with hash 826893619, now seen corresponding path program 1 times [2025-02-08 01:01:59,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:01:59,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272762099] [2025-02-08 01:01:59,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:01:59,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:01:59,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 01:01:59,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 01:01:59,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:01:59,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:01:59,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:01:59,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:01:59,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272762099] [2025-02-08 01:01:59,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272762099] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:01:59,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:01:59,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 01:01:59,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681528033] [2025-02-08 01:01:59,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:01:59,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 01:01:59,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:01:59,487 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 01:01:59,487 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 01:01:59,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 01:01:59,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 46 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2025-02-08 01:01:59,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:01:59,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 01:01:59,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:02:02,339 INFO L124 PetriNetUnfolderBase]: 33683/46691 cut-off events. [2025-02-08 01:02:02,340 INFO L125 PetriNetUnfolderBase]: For 11728/11768 co-relation queries the response was YES. [2025-02-08 01:02:02,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106236 conditions, 46691 events. 33683/46691 cut-off events. For 11728/11768 co-relation queries the response was YES. Maximal size of possible extension queue 1343. Compared 290620 event pairs, 4835 based on Foata normal form. 1735/48419 useless extension candidates. Maximal degree in co-relation 106219. Up to 23697 conditions per place. [2025-02-08 01:02:02,619 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 89 selfloop transitions, 6 changer transitions 1/102 dead transitions. [2025-02-08 01:02:02,619 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 102 transitions, 498 flow [2025-02-08 01:02:02,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 01:02:02,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 01:02:02,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2025-02-08 01:02:02,620 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65 [2025-02-08 01:02:02,621 INFO L175 Difference]: Start difference. First operand has 65 places, 46 transitions, 140 flow. Second operand 4 states and 130 transitions. [2025-02-08 01:02:02,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 102 transitions, 498 flow [2025-02-08 01:02:02,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 102 transitions, 494 flow, removed 2 selfloop flow, removed 2 redundant places. [2025-02-08 01:02:02,751 INFO L231 Difference]: Finished difference. Result has 64 places, 50 transitions, 178 flow [2025-02-08 01:02:02,752 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=178, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2025-02-08 01:02:02,752 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2025-02-08 01:02:02,752 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 178 flow [2025-02-08 01:02:02,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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) [2025-02-08 01:02:02,753 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:02:02,753 INFO L206 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] [2025-02-08 01:02:02,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:02:02,753 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:02:02,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:02:02,753 INFO L85 PathProgramCache]: Analyzing trace with hash 299451752, now seen corresponding path program 1 times [2025-02-08 01:02:02,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:02:02,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991594302] [2025-02-08 01:02:02,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:02:02,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:02:02,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 01:02:02,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 01:02:02,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:02:02,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:02:02,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:02:02,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:02:02,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991594302] [2025-02-08 01:02:02,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991594302] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:02:02,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:02:02,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:02:02,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719501796] [2025-02-08 01:02:02,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:02:02,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:02:02,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:02:02,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:02:02,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:02:02,921 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 01:02:02,921 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2025-02-08 01:02:02,922 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:02:02,922 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 01:02:02,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:02:04,749 INFO L124 PetriNetUnfolderBase]: 22931/32035 cut-off events. [2025-02-08 01:02:04,749 INFO L125 PetriNetUnfolderBase]: For 13270/13310 co-relation queries the response was YES. [2025-02-08 01:02:04,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80458 conditions, 32035 events. 22931/32035 cut-off events. For 13270/13310 co-relation queries the response was YES. Maximal size of possible extension queue 826. Compared 189459 event pairs, 2815 based on Foata normal form. 1351/33379 useless extension candidates. Maximal degree in co-relation 80439. Up to 10961 conditions per place. [2025-02-08 01:02:04,937 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 116 selfloop transitions, 10 changer transitions 1/133 dead transitions. [2025-02-08 01:02:04,937 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 133 transitions, 699 flow [2025-02-08 01:02:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 01:02:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 01:02:04,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2025-02-08 01:02:04,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.672 [2025-02-08 01:02:04,938 INFO L175 Difference]: Start difference. First operand has 64 places, 50 transitions, 178 flow. Second operand 5 states and 168 transitions. [2025-02-08 01:02:04,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 133 transitions, 699 flow [2025-02-08 01:02:04,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 133 transitions, 688 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-08 01:02:04,953 INFO L231 Difference]: Finished difference. Result has 68 places, 54 transitions, 230 flow [2025-02-08 01:02:04,954 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=230, PETRI_PLACES=68, PETRI_TRANSITIONS=54} [2025-02-08 01:02:04,957 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 10 predicate places. [2025-02-08 01:02:04,957 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 54 transitions, 230 flow [2025-02-08 01:02:04,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 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) [2025-02-08 01:02:04,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:02:04,957 INFO L206 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, 1] [2025-02-08 01:02:04,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:02:04,957 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:02:04,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:02:04,958 INFO L85 PathProgramCache]: Analyzing trace with hash -2088164272, now seen corresponding path program 1 times [2025-02-08 01:02:04,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:02:04,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679185431] [2025-02-08 01:02:04,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:02:04,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:02:04,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-08 01:02:04,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 01:02:04,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:02:04,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:02:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:02:05,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:02:05,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679185431] [2025-02-08 01:02:05,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679185431] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:02:05,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:02:05,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:02:05,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461778090] [2025-02-08 01:02:05,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:02:05,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:02:05,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:02:05,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:02:05,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:02:05,288 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-08 01:02:05,288 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 54 transitions, 230 flow. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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) [2025-02-08 01:02:05,288 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:02:05,288 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-08 01:02:05,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:02:08,595 INFO L124 PetriNetUnfolderBase]: 30791/42312 cut-off events. [2025-02-08 01:02:08,595 INFO L125 PetriNetUnfolderBase]: For 32339/32348 co-relation queries the response was YES. [2025-02-08 01:02:08,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115355 conditions, 42312 events. 30791/42312 cut-off events. For 32339/32348 co-relation queries the response was YES. Maximal size of possible extension queue 982. Compared 248940 event pairs, 6219 based on Foata normal form. 360/42669 useless extension candidates. Maximal degree in co-relation 115334. Up to 24142 conditions per place. [2025-02-08 01:02:08,822 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 104 selfloop transitions, 2 changer transitions 52/163 dead transitions. [2025-02-08 01:02:08,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 163 transitions, 1006 flow [2025-02-08 01:02:08,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:02:08,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:02:08,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 181 transitions. [2025-02-08 01:02:08,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6033333333333334 [2025-02-08 01:02:08,824 INFO L175 Difference]: Start difference. First operand has 68 places, 54 transitions, 230 flow. Second operand 6 states and 181 transitions. [2025-02-08 01:02:08,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 163 transitions, 1006 flow [2025-02-08 01:02:08,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 163 transitions, 934 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-02-08 01:02:08,926 INFO L231 Difference]: Finished difference. Result has 73 places, 55 transitions, 220 flow [2025-02-08 01:02:08,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=220, PETRI_PLACES=73, PETRI_TRANSITIONS=55} [2025-02-08 01:02:08,926 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 15 predicate places. [2025-02-08 01:02:08,926 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 55 transitions, 220 flow [2025-02-08 01:02:08,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 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) [2025-02-08 01:02:08,926 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:02:08,926 INFO L206 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, 1] [2025-02-08 01:02:08,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:02:08,927 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:02:08,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:02:08,927 INFO L85 PathProgramCache]: Analyzing trace with hash 687459880, now seen corresponding path program 2 times [2025-02-08 01:02:08,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:02:08,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648226623] [2025-02-08 01:02:08,927 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:02:08,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:02:08,935 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 28 statements into 1 equivalence classes. [2025-02-08 01:02:08,956 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-08 01:02:08,960 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:02:08,961 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:02:09,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:02:09,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:02:09,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648226623] [2025-02-08 01:02:09,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648226623] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:02:09,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:02:09,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:02:09,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802655561] [2025-02-08 01:02:09,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:02:09,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:02:09,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:02:09,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:02:09,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:02:09,083 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 01:02:09,083 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 55 transitions, 220 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2025-02-08 01:02:09,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:02:09,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 01:02:09,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:02:10,670 INFO L124 PetriNetUnfolderBase]: 20491/28435 cut-off events. [2025-02-08 01:02:10,671 INFO L125 PetriNetUnfolderBase]: For 19496/19536 co-relation queries the response was YES. [2025-02-08 01:02:10,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74348 conditions, 28435 events. 20491/28435 cut-off events. For 19496/19536 co-relation queries the response was YES. Maximal size of possible extension queue 753. Compared 162254 event pairs, 2987 based on Foata normal form. 1015/29443 useless extension candidates. Maximal degree in co-relation 74325. Up to 8732 conditions per place. [2025-02-08 01:02:10,795 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 132 selfloop transitions, 14 changer transitions 5/157 dead transitions. [2025-02-08 01:02:10,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 157 transitions, 873 flow [2025-02-08 01:02:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:02:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:02:10,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2025-02-08 01:02:10,796 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68 [2025-02-08 01:02:10,796 INFO L175 Difference]: Start difference. First operand has 73 places, 55 transitions, 220 flow. Second operand 6 states and 204 transitions. [2025-02-08 01:02:10,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 157 transitions, 873 flow [2025-02-08 01:02:10,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 157 transitions, 864 flow, removed 2 selfloop flow, removed 3 redundant places. [2025-02-08 01:02:10,818 INFO L231 Difference]: Finished difference. Result has 75 places, 59 transitions, 292 flow [2025-02-08 01:02:10,818 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=292, PETRI_PLACES=75, PETRI_TRANSITIONS=59} [2025-02-08 01:02:10,818 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 17 predicate places. [2025-02-08 01:02:10,818 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 59 transitions, 292 flow [2025-02-08 01:02:10,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2025-02-08 01:02:10,818 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:02:10,818 INFO L206 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, 1, 1, 1, 1, 1, 1] [2025-02-08 01:02:10,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 01:02:10,819 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:02:10,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:02:10,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1450468534, now seen corresponding path program 1 times [2025-02-08 01:02:10,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:02:10,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023706149] [2025-02-08 01:02:10,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:02:10,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:02:10,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-08 01:02:10,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 01:02:10,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:02:10,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:02:10,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:02:10,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:02:10,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023706149] [2025-02-08 01:02:10,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023706149] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:02:10,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:02:10,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:02:10,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000948494] [2025-02-08 01:02:10,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:02:10,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:02:10,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:02:10,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:02:10,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:02:10,974 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-08 01:02:10,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 59 transitions, 292 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2025-02-08 01:02:10,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:02:10,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-08 01:02:10,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:02:14,199 INFO L124 PetriNetUnfolderBase]: 29341/40549 cut-off events. [2025-02-08 01:02:14,200 INFO L125 PetriNetUnfolderBase]: For 48206/48218 co-relation queries the response was YES. [2025-02-08 01:02:14,372 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117289 conditions, 40549 events. 29341/40549 cut-off events. For 48206/48218 co-relation queries the response was YES. Maximal size of possible extension queue 1034. Compared 240135 event pairs, 4703 based on Foata normal form. 144/40691 useless extension candidates. Maximal degree in co-relation 117265. Up to 21324 conditions per place. [2025-02-08 01:02:14,431 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 98 selfloop transitions, 2 changer transitions 72/177 dead transitions. [2025-02-08 01:02:14,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 177 transitions, 1222 flow [2025-02-08 01:02:14,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-08 01:02:14,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-08 01:02:14,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 183 transitions. [2025-02-08 01:02:14,433 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.61 [2025-02-08 01:02:14,433 INFO L175 Difference]: Start difference. First operand has 75 places, 59 transitions, 292 flow. Second operand 6 states and 183 transitions. [2025-02-08 01:02:14,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 177 transitions, 1222 flow [2025-02-08 01:02:14,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 177 transitions, 1106 flow, removed 25 selfloop flow, removed 5 redundant places. [2025-02-08 01:02:14,803 INFO L231 Difference]: Finished difference. Result has 79 places, 60 transitions, 266 flow [2025-02-08 01:02:14,803 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=266, PETRI_PLACES=79, PETRI_TRANSITIONS=60} [2025-02-08 01:02:14,803 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 21 predicate places. [2025-02-08 01:02:14,803 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 60 transitions, 266 flow [2025-02-08 01:02:14,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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) [2025-02-08 01:02:14,803 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:02:14,804 INFO L206 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, 1, 1, 1, 1, 1, 1] [2025-02-08 01:02:14,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 01:02:14,804 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:02:14,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:02:14,804 INFO L85 PathProgramCache]: Analyzing trace with hash 75486338, now seen corresponding path program 2 times [2025-02-08 01:02:14,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:02:14,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036422220] [2025-02-08 01:02:14,804 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-08 01:02:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:02:14,811 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-02-08 01:02:14,825 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-08 01:02:14,825 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-08 01:02:14,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:02:15,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:02:15,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:02:15,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036422220] [2025-02-08 01:02:15,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036422220] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:02:15,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:02:15,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:02:15,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179814937] [2025-02-08 01:02:15,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:02:15,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:02:15,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:02:15,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:02:15,148 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:02:15,148 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-08 01:02:15,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 60 transitions, 266 flow. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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) [2025-02-08 01:02:15,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:02:15,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-08 01:02:15,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:02:16,959 INFO L124 PetriNetUnfolderBase]: 25169/34561 cut-off events. [2025-02-08 01:02:16,960 INFO L125 PetriNetUnfolderBase]: For 29779/29824 co-relation queries the response was YES. [2025-02-08 01:02:17,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94691 conditions, 34561 events. 25169/34561 cut-off events. For 29779/29824 co-relation queries the response was YES. Maximal size of possible extension queue 1045. Compared 201003 event pairs, 3617 based on Foata normal form. 527/35075 useless extension candidates. Maximal degree in co-relation 94665. Up to 11964 conditions per place. [2025-02-08 01:02:17,173 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 92 selfloop transitions, 18 changer transitions 31/147 dead transitions. [2025-02-08 01:02:17,173 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 147 transitions, 841 flow [2025-02-08 01:02:17,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:02:17,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:02:17,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2025-02-08 01:02:17,174 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5771428571428572 [2025-02-08 01:02:17,174 INFO L175 Difference]: Start difference. First operand has 79 places, 60 transitions, 266 flow. Second operand 7 states and 202 transitions. [2025-02-08 01:02:17,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 147 transitions, 841 flow [2025-02-08 01:02:18,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 147 transitions, 804 flow, removed 14 selfloop flow, removed 6 redundant places. [2025-02-08 01:02:18,054 INFO L231 Difference]: Finished difference. Result has 79 places, 58 transitions, 288 flow [2025-02-08 01:02:18,054 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=288, PETRI_PLACES=79, PETRI_TRANSITIONS=58} [2025-02-08 01:02:18,055 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 21 predicate places. [2025-02-08 01:02:18,055 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 58 transitions, 288 flow [2025-02-08 01:02:18,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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) [2025-02-08 01:02:18,055 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:02:18,055 INFO L206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:02:18,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 01:02:18,056 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-08 01:02:18,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:02:18,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1173337692, now seen corresponding path program 1 times [2025-02-08 01:02:18,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:02:18,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431596431] [2025-02-08 01:02:18,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:02:18,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:02:18,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-08 01:02:18,081 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-08 01:02:18,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:02:18,082 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:02:18,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:02:18,274 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:02:18,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431596431] [2025-02-08 01:02:18,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431596431] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:02:18,274 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:02:18,274 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:02:18,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27880839] [2025-02-08 01:02:18,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:02:18,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:02:18,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:02:18,275 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:02:18,275 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:02:18,279 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-08 01:02:18,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 58 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 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) [2025-02-08 01:02:18,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:02:18,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-08 01:02:18,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand