./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix004.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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/mix004.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 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:18:37,304 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:18:37,365 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:18:37,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:18:37,373 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:18:37,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:18:37,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:18:37,407 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:18:37,408 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:18:37,408 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:18:37,409 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:18:37,409 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:18:37,409 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:18:37,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:18:37,409 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:18:37,409 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:18:37,409 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:18:37,410 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:18:37,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:18:37,411 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:18:37,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:18:37,411 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 -> 89021de777f0aa5756284679b7b3bd19ab661d8d626f08ad7f7db0bc955b507d [2025-02-06 04:18:37,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:18:37,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:18:37,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:18:37,729 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:18:37,729 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:18:37,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix004.opt.i [2025-02-06 04:18:39,109 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1d6b6bdbd/0b11d408bc1d4c6fba285d8f83b8fbe8/FLAG2ff9e71da [2025-02-06 04:18:39,523 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:18:39,525 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix004.opt.i [2025-02-06 04:18:39,544 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1d6b6bdbd/0b11d408bc1d4c6fba285d8f83b8fbe8/FLAG2ff9e71da [2025-02-06 04:18:39,674 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1d6b6bdbd/0b11d408bc1d4c6fba285d8f83b8fbe8 [2025-02-06 04:18:39,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:18:39,680 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:18:39,682 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:18:39,682 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:18:39,686 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:18:39,688 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:18:39" (1/1) ... [2025-02-06 04:18:39,688 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d41fce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:39, skipping insertion in model container [2025-02-06 04:18:39,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:18:39" (1/1) ... [2025-02-06 04:18:39,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:18:39,897 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/mix004.opt.i[944,957] [2025-02-06 04:18:40,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:18:40,146 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:18:40,157 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/mix004.opt.i[944,957] [2025-02-06 04:18:40,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:18:40,232 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:18:40,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40 WrapperNode [2025-02-06 04:18:40,234 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:18:40,235 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:18:40,235 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:18:40,235 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:18:40,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,286 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2025-02-06 04:18:40,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:18:40,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:18:40,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:18:40,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:18:40,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,300 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,318 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]. [2025-02-06 04:18:40,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,328 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,332 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:18:40,345 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:18:40,345 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:18:40,346 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:18:40,346 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (1/1) ... [2025-02-06 04:18:40,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:18:40,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:18:40,380 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) [2025-02-06 04:18:40,383 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 [2025-02-06 04:18:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 04:18:40,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:18:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 04:18:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 04:18:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 04:18:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 04:18:40,406 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 04:18:40,406 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 04:18:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 04:18:40,407 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 04:18:40,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:18:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 04:18:40,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:18:40,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:18:40,409 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 04:18:40,560 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:18:40,562 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:18:40,889 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:18:40,890 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:18:41,169 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:18:41,170 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:18:41,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:18:41 BoogieIcfgContainer [2025-02-06 04:18:41,171 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:18:41,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:18:41,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:18:41,178 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:18:41,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:18:39" (1/3) ... [2025-02-06 04:18:41,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520b573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:18:41, skipping insertion in model container [2025-02-06 04:18:41,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:40" (2/3) ... [2025-02-06 04:18:41,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520b573 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:18:41, skipping insertion in model container [2025-02-06 04:18:41,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:18:41" (3/3) ... [2025-02-06 04:18:41,180 INFO L128 eAbstractionObserver]: Analyzing ICFG mix004.opt.i [2025-02-06 04:18:41,193 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:18:41,194 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix004.opt.i that has 5 procedures, 50 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 04:18:41,195 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:18:41,269 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 04:18:41,308 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2025-02-06 04:18:41,344 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-02-06 04:18:41,347 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:18:41,350 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 98 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. [2025-02-06 04:18:41,350 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2025-02-06 04:18:41,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2025-02-06 04:18:41,366 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:18:41,381 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;@6b87c1e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:18:41,381 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-06 04:18:41,394 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:18:41,395 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2025-02-06 04:18:41,396 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:18:41,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:18:41,397 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:18:41,398 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:18:41,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:18:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1712852134, now seen corresponding path program 1 times [2025-02-06 04:18:41,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:18:41,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121660103] [2025-02-06 04:18:41,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:18:41,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:18:41,495 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-02-06 04:18:41,538 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-02-06 04:18:41,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:18:41,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:18:41,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:18:41,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:18:41,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121660103] [2025-02-06 04:18:41,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121660103] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:18:41,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:18:41,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 04:18:41,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187008757] [2025-02-06 04:18:41,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:18:41,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:18:42,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:18:42,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:18:42,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:18:42,023 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 04:18:42,026 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) [2025-02-06 04:18:42,026 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:18:42,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 04:18:42,028 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:18:47,446 INFO L124 PetriNetUnfolderBase]: 47351/62867 cut-off events. [2025-02-06 04:18:47,446 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2025-02-06 04:18:47,585 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125515 conditions, 62867 events. 47351/62867 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 1840. Compared 365273 event pairs, 6239 based on Foata normal form. 1764/64288 useless extension candidates. Maximal degree in co-relation 125503. Up to 53209 conditions per place. [2025-02-06 04:18:47,810 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 56 selfloop transitions, 2 changer transitions 2/67 dead transitions. [2025-02-06 04:18:47,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 67 transitions, 266 flow [2025-02-06 04:18:47,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:18:47,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:18:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2025-02-06 04:18:47,826 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.64 [2025-02-06 04:18:47,827 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 96 transitions. [2025-02-06 04:18:47,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 67 transitions, 266 flow [2025-02-06 04:18:47,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 67 transitions, 262 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 04:18:47,844 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2025-02-06 04:18:47,847 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} [2025-02-06 04:18:47,851 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2025-02-06 04:18:47,852 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2025-02-06 04:18:47,853 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) [2025-02-06 04:18:47,853 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:18:47,853 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:18:47,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:18:47,854 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)] === [2025-02-06 04:18:47,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:18:47,855 INFO L85 PathProgramCache]: Analyzing trace with hash -840436728, now seen corresponding path program 1 times [2025-02-06 04:18:47,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:18:47,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872904175] [2025-02-06 04:18:47,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:18:47,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:18:47,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 04:18:47,894 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 04:18:47,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:18:47,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:18:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:18:48,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:18:48,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872904175] [2025-02-06 04:18:48,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872904175] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:18:48,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:18:48,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:18:48,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854732583] [2025-02-06 04:18:48,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:18:48,189 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:18:48,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:18:48,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:18:48,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:18:48,193 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:18:48,194 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) [2025-02-06 04:18:48,194 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:18:48,194 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:18:48,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:18:54,021 INFO L124 PetriNetUnfolderBase]: 69203/92659 cut-off events. [2025-02-06 04:18:54,022 INFO L125 PetriNetUnfolderBase]: For 2992/2992 co-relation queries the response was YES. [2025-02-06 04:18:54,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187141 conditions, 92659 events. 69203/92659 cut-off events. For 2992/2992 co-relation queries the response was YES. Maximal size of possible extension queue 2691. Compared 573375 event pairs, 35807 based on Foata normal form. 0/90897 useless extension candidates. Maximal degree in co-relation 187131. Up to 61525 conditions per place. [2025-02-06 04:18:54,512 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 50 selfloop transitions, 5 changer transitions 88/148 dead transitions. [2025-02-06 04:18:54,513 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 148 transitions, 612 flow [2025-02-06 04:18:54,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:18:54,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:18:54,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 217 transitions. [2025-02-06 04:18:54,517 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5425 [2025-02-06 04:18:54,517 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 8 states and 217 transitions. [2025-02-06 04:18:54,517 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 148 transitions, 612 flow [2025-02-06 04:18:54,527 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 148 transitions, 596 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 04:18:54,532 INFO L231 Difference]: Finished difference. Result has 64 places, 46 transitions, 149 flow [2025-02-06 04:18:54,533 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=149, PETRI_PLACES=64, PETRI_TRANSITIONS=46} [2025-02-06 04:18:54,533 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2025-02-06 04:18:54,533 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 46 transitions, 149 flow [2025-02-06 04:18:54,534 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) [2025-02-06 04:18:54,534 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:18:54,534 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:18:54,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:18:54,535 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)] === [2025-02-06 04:18:54,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:18:54,535 INFO L85 PathProgramCache]: Analyzing trace with hash -277589836, now seen corresponding path program 1 times [2025-02-06 04:18:54,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:18:54,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690161284] [2025-02-06 04:18:54,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:18:54,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:18:54,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 04:18:54,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 04:18:54,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:18:54,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:18:54,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:18:54,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:18:54,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690161284] [2025-02-06 04:18:54,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690161284] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:18:54,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:18:54,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:18:54,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083612830] [2025-02-06 04:18:54,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:18:54,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:18:54,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:18:54,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:18:54,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:18:54,803 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:18:54,803 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 46 transitions, 149 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:18:54,803 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:18:54,803 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:18:54,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:18:59,425 INFO L124 PetriNetUnfolderBase]: 52299/70187 cut-off events. [2025-02-06 04:18:59,426 INFO L125 PetriNetUnfolderBase]: For 52942/52942 co-relation queries the response was YES. [2025-02-06 04:18:59,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 178278 conditions, 70187 events. 52299/70187 cut-off events. For 52942/52942 co-relation queries the response was YES. Maximal size of possible extension queue 1991. Compared 427315 event pairs, 10779 based on Foata normal form. 1708/71854 useless extension candidates. Maximal degree in co-relation 178263. Up to 44905 conditions per place. [2025-02-06 04:18:59,829 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 60 selfloop transitions, 3 changer transitions 79/147 dead transitions. [2025-02-06 04:18:59,830 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 147 transitions, 749 flow [2025-02-06 04:18:59,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:18:59,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 04:18:59,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 203 transitions. [2025-02-06 04:18:59,831 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.58 [2025-02-06 04:18:59,831 INFO L175 Difference]: Start difference. First operand has 64 places, 46 transitions, 149 flow. Second operand 7 states and 203 transitions. [2025-02-06 04:18:59,831 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 147 transitions, 749 flow [2025-02-06 04:19:00,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 147 transitions, 736 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-06 04:19:00,931 INFO L231 Difference]: Finished difference. Result has 66 places, 46 transitions, 159 flow [2025-02-06 04:19:00,932 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=159, PETRI_PLACES=66, PETRI_TRANSITIONS=46} [2025-02-06 04:19:00,932 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2025-02-06 04:19:00,932 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 46 transitions, 159 flow [2025-02-06 04:19:00,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:00,933 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:00,933 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:19:00,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 04:19:00,933 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)] === [2025-02-06 04:19:00,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:00,935 INFO L85 PathProgramCache]: Analyzing trace with hash -17213888, now seen corresponding path program 1 times [2025-02-06 04:19:00,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:00,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992750115] [2025-02-06 04:19:00,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:00,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:00,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 04:19:00,956 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 04:19:00,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:00,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:01,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:01,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992750115] [2025-02-06 04:19:01,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992750115] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:01,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:01,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:19:01,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964329088] [2025-02-06 04:19:01,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:01,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:19:01,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:01,164 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:19:01,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:19:01,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:19:01,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 46 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:01,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:01,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:19:01,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:05,588 INFO L124 PetriNetUnfolderBase]: 45755/61327 cut-off events. [2025-02-06 04:19:05,589 INFO L125 PetriNetUnfolderBase]: For 60452/60452 co-relation queries the response was YES. [2025-02-06 04:19:05,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159768 conditions, 61327 events. 45755/61327 cut-off events. For 60452/60452 co-relation queries the response was YES. Maximal size of possible extension queue 1580. Compared 355454 event pairs, 10095 based on Foata normal form. 1260/62542 useless extension candidates. Maximal degree in co-relation 159749. Up to 38761 conditions per place. [2025-02-06 04:19:06,172 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 58 selfloop transitions, 3 changer transitions 71/137 dead transitions. [2025-02-06 04:19:06,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 137 transitions, 702 flow [2025-02-06 04:19:06,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:19:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 04:19:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2025-02-06 04:19:06,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5514285714285714 [2025-02-06 04:19:06,173 INFO L175 Difference]: Start difference. First operand has 66 places, 46 transitions, 159 flow. Second operand 7 states and 193 transitions. [2025-02-06 04:19:06,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 137 transitions, 702 flow [2025-02-06 04:19:07,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 137 transitions, 678 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-06 04:19:07,381 INFO L231 Difference]: Finished difference. Result has 67 places, 46 transitions, 164 flow [2025-02-06 04:19:07,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=164, PETRI_PLACES=67, PETRI_TRANSITIONS=46} [2025-02-06 04:19:07,382 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 9 predicate places. [2025-02-06 04:19:07,382 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 46 transitions, 164 flow [2025-02-06 04:19:07,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:07,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:07,382 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] [2025-02-06 04:19:07,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:19:07,382 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)] === [2025-02-06 04:19:07,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:07,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1922018599, now seen corresponding path program 1 times [2025-02-06 04:19:07,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:07,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368483700] [2025-02-06 04:19:07,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:07,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:07,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 04:19:07,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 04:19:07,449 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:07,449 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:07,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:07,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:07,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368483700] [2025-02-06 04:19:07,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368483700] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:07,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:07,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 04:19:07,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137263517] [2025-02-06 04:19:07,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:07,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 04:19:07,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:07,639 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 04:19:07,639 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 04:19:07,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 04:19:07,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 46 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2025-02-06 04:19:07,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:07,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 04:19:07,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:10,744 INFO L124 PetriNetUnfolderBase]: 34215/47247 cut-off events. [2025-02-06 04:19:10,744 INFO L125 PetriNetUnfolderBase]: For 46614/46614 co-relation queries the response was YES. [2025-02-06 04:19:10,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123249 conditions, 47247 events. 34215/47247 cut-off events. For 46614/46614 co-relation queries the response was YES. Maximal size of possible extension queue 1337. Compared 290225 event pairs, 4831 based on Foata normal form. 1764/48980 useless extension candidates. Maximal degree in co-relation 123229. Up to 23653 conditions per place. [2025-02-06 04:19:11,014 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 81 selfloop transitions, 6 changer transitions 1/94 dead transitions. [2025-02-06 04:19:11,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 94 transitions, 498 flow [2025-02-06 04:19:11,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 04:19:11,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-06 04:19:11,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 130 transitions. [2025-02-06 04:19:11,016 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.65 [2025-02-06 04:19:11,016 INFO L175 Difference]: Start difference. First operand has 67 places, 46 transitions, 164 flow. Second operand 4 states and 130 transitions. [2025-02-06 04:19:11,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 94 transitions, 498 flow [2025-02-06 04:19:11,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 94 transitions, 480 flow, removed 4 selfloop flow, removed 6 redundant places. [2025-02-06 04:19:11,353 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 192 flow [2025-02-06 04:19:11,353 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=57, 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=192, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2025-02-06 04:19:11,353 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 4 predicate places. [2025-02-06 04:19:11,354 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 192 flow [2025-02-06 04:19:11,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2025-02-06 04:19:11,354 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:11,354 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] [2025-02-06 04:19:11,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:19:11,354 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)] === [2025-02-06 04:19:11,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:11,355 INFO L85 PathProgramCache]: Analyzing trace with hash -672034162, now seen corresponding path program 1 times [2025-02-06 04:19:11,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:11,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283797628] [2025-02-06 04:19:11,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:11,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:11,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 04:19:11,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 04:19:11,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:11,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:11,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:11,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283797628] [2025-02-06 04:19:11,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283797628] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:11,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:11,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:19:11,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959980063] [2025-02-06 04:19:11,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:11,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:19:11,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:11,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:19:11,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:19:11,688 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 04:19:11,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 192 flow. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2025-02-06 04:19:11,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:11,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 04:19:11,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:14,017 INFO L124 PetriNetUnfolderBase]: 23291/32419 cut-off events. [2025-02-06 04:19:14,017 INFO L125 PetriNetUnfolderBase]: For 31096/31096 co-relation queries the response was YES. [2025-02-06 04:19:14,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90087 conditions, 32419 events. 23291/32419 cut-off events. For 31096/31096 co-relation queries the response was YES. Maximal size of possible extension queue 828. Compared 189969 event pairs, 2819 based on Foata normal form. 1364/33752 useless extension candidates. Maximal degree in co-relation 90069. Up to 10777 conditions per place. [2025-02-06 04:19:14,264 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 104 selfloop transitions, 10 changer transitions 1/121 dead transitions. [2025-02-06 04:19:14,265 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 121 transitions, 671 flow [2025-02-06 04:19:14,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 04:19:14,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-06 04:19:14,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 168 transitions. [2025-02-06 04:19:14,266 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.672 [2025-02-06 04:19:14,266 INFO L175 Difference]: Start difference. First operand has 62 places, 50 transitions, 192 flow. Second operand 5 states and 168 transitions. [2025-02-06 04:19:14,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 121 transitions, 671 flow [2025-02-06 04:19:14,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 121 transitions, 660 flow, removed 1 selfloop flow, removed 2 redundant places. [2025-02-06 04:19:14,277 INFO L231 Difference]: Finished difference. Result has 66 places, 54 transitions, 244 flow [2025-02-06 04:19:14,277 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=183, PETRI_DIFFERENCE_MINUEND_PLACES=60, 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=244, PETRI_PLACES=66, PETRI_TRANSITIONS=54} [2025-02-06 04:19:14,279 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 8 predicate places. [2025-02-06 04:19:14,279 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 54 transitions, 244 flow [2025-02-06 04:19:14,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 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) [2025-02-06 04:19:14,279 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:14,279 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] [2025-02-06 04:19:14,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:19:14,279 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)] === [2025-02-06 04:19:14,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:14,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1787282999, now seen corresponding path program 1 times [2025-02-06 04:19:14,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:14,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846734958] [2025-02-06 04:19:14,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:14,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:14,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 28 statements into 1 equivalence classes. [2025-02-06 04:19:14,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 28 of 28 statements. [2025-02-06 04:19:14,381 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:14,381 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:14,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:14,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:14,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846734958] [2025-02-06 04:19:14,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846734958] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:14,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:14,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:19:14,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584368168] [2025-02-06 04:19:14,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:14,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:19:14,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:14,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:19:14,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:19:14,845 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 04:19:14,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 54 transitions, 244 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) [2025-02-06 04:19:14,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:14,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 04:19:14,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:16,275 INFO L124 PetriNetUnfolderBase]: 15067/20855 cut-off events. [2025-02-06 04:19:16,276 INFO L125 PetriNetUnfolderBase]: For 28732/28732 co-relation queries the response was YES. [2025-02-06 04:19:16,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61655 conditions, 20855 events. 15067/20855 cut-off events. For 28732/28732 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 113071 event pairs, 2429 based on Foata normal form. 644/21468 useless extension candidates. Maximal degree in co-relation 61635. Up to 6400 conditions per place. [2025-02-06 04:19:16,381 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 125 selfloop transitions, 14 changer transitions 1/146 dead transitions. [2025-02-06 04:19:16,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 146 transitions, 860 flow [2025-02-06 04:19:16,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:19:16,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:19:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 204 transitions. [2025-02-06 04:19:16,383 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.68 [2025-02-06 04:19:16,383 INFO L175 Difference]: Start difference. First operand has 66 places, 54 transitions, 244 flow. Second operand 6 states and 204 transitions. [2025-02-06 04:19:16,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 146 transitions, 860 flow [2025-02-06 04:19:16,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 146 transitions, 830 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-06 04:19:16,533 INFO L231 Difference]: Finished difference. Result has 69 places, 58 transitions, 294 flow [2025-02-06 04:19:16,533 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=294, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2025-02-06 04:19:16,534 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 11 predicate places. [2025-02-06 04:19:16,534 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 294 flow [2025-02-06 04:19:16,534 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) [2025-02-06 04:19:16,534 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:16,534 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] [2025-02-06 04:19:16,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 04:19:16,535 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)] === [2025-02-06 04:19:16,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:16,535 INFO L85 PathProgramCache]: Analyzing trace with hash -2062021358, now seen corresponding path program 1 times [2025-02-06 04:19:16,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:16,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714360007] [2025-02-06 04:19:16,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:16,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:16,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-02-06 04:19:16,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 04:19:16,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:16,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:16,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:16,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:16,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714360007] [2025-02-06 04:19:16,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714360007] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:16,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:16,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:19:16,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565930747] [2025-02-06 04:19:16,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:16,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:19:16,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:16,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:19:16,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:19:16,836 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:19:16,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 294 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) [2025-02-06 04:19:16,837 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:16,837 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:19:16,837 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:18,506 INFO L124 PetriNetUnfolderBase]: 19947/27452 cut-off events. [2025-02-06 04:19:18,506 INFO L125 PetriNetUnfolderBase]: For 39202/39202 co-relation queries the response was YES. [2025-02-06 04:19:18,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83205 conditions, 27452 events. 19947/27452 cut-off events. For 39202/39202 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 149601 event pairs, 4909 based on Foata normal form. 112/27551 useless extension candidates. Maximal degree in co-relation 83184. Up to 16028 conditions per place. [2025-02-06 04:19:18,692 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 98 selfloop transitions, 2 changer transitions 62/167 dead transitions. [2025-02-06 04:19:18,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 167 transitions, 1171 flow [2025-02-06 04:19:18,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 04:19:18,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 04:19:18,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 180 transitions. [2025-02-06 04:19:18,694 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-02-06 04:19:18,694 INFO L175 Difference]: Start difference. First operand has 69 places, 58 transitions, 294 flow. Second operand 6 states and 180 transitions. [2025-02-06 04:19:18,694 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 167 transitions, 1171 flow [2025-02-06 04:19:18,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 167 transitions, 1055 flow, removed 25 selfloop flow, removed 5 redundant places. [2025-02-06 04:19:18,924 INFO L231 Difference]: Finished difference. Result has 73 places, 59 transitions, 268 flow [2025-02-06 04:19:18,924 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=268, PETRI_PLACES=73, PETRI_TRANSITIONS=59} [2025-02-06 04:19:18,925 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 15 predicate places. [2025-02-06 04:19:18,925 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 59 transitions, 268 flow [2025-02-06 04:19:18,925 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) [2025-02-06 04:19:18,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:18,925 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] [2025-02-06 04:19:18,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 04:19:18,926 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)] === [2025-02-06 04:19:18,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:18,926 INFO L85 PathProgramCache]: Analyzing trace with hash -2142665418, now seen corresponding path program 2 times [2025-02-06 04:19:18,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:18,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650148313] [2025-02-06 04:19:18,927 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:19:18,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:18,940 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 33 statements into 1 equivalence classes. [2025-02-06 04:19:19,007 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-02-06 04:19:19,007 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:19:19,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:19,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:19,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:19,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650148313] [2025-02-06 04:19:19,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650148313] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:19,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:19,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:19:19,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685886801] [2025-02-06 04:19:19,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:19,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:19:19,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:19,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:19:19,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:19:19,243 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 04:19:19,244 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 59 transitions, 268 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) [2025-02-06 04:19:19,244 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:19,244 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 04:19:19,244 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:20,494 INFO L124 PetriNetUnfolderBase]: 17099/23379 cut-off events. [2025-02-06 04:19:20,495 INFO L125 PetriNetUnfolderBase]: For 29830/29830 co-relation queries the response was YES. [2025-02-06 04:19:20,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68162 conditions, 23379 events. 17099/23379 cut-off events. For 29830/29830 co-relation queries the response was YES. Maximal size of possible extension queue 718. Compared 128323 event pairs, 2739 based on Foata normal form. 288/23636 useless extension candidates. Maximal degree in co-relation 68139. Up to 8604 conditions per place. [2025-02-06 04:19:20,650 INFO L140 encePairwiseOnDemand]: 43/50 looper letters, 98 selfloop transitions, 18 changer transitions 14/136 dead transitions. [2025-02-06 04:19:20,650 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 136 transitions, 798 flow [2025-02-06 04:19:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:19:20,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 04:19:20,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 202 transitions. [2025-02-06 04:19:20,651 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5771428571428572 [2025-02-06 04:19:20,651 INFO L175 Difference]: Start difference. First operand has 73 places, 59 transitions, 268 flow. Second operand 7 states and 202 transitions. [2025-02-06 04:19:20,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 136 transitions, 798 flow [2025-02-06 04:19:21,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 136 transitions, 768 flow, removed 7 selfloop flow, removed 5 redundant places. [2025-02-06 04:19:21,013 INFO L231 Difference]: Finished difference. Result has 74 places, 57 transitions, 290 flow [2025-02-06 04:19:21,013 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=247, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=290, PETRI_PLACES=74, PETRI_TRANSITIONS=57} [2025-02-06 04:19:21,014 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 16 predicate places. [2025-02-06 04:19:21,014 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 57 transitions, 290 flow [2025-02-06 04:19:21,014 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) [2025-02-06 04:19:21,014 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:21,014 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] [2025-02-06 04:19:21,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 04:19:21,015 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)] === [2025-02-06 04:19:21,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:21,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1872551323, now seen corresponding path program 1 times [2025-02-06 04:19:21,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:21,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25643969] [2025-02-06 04:19:21,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:21,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:21,025 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-02-06 04:19:21,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 04:19:21,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:21,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:21,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:21,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:21,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25643969] [2025-02-06 04:19:21,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25643969] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:21,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:21,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 04:19:21,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004915382] [2025-02-06 04:19:21,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:21,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:19:21,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:21,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:19:21,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:19:21,299 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:19:21,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 57 transitions, 290 flow. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2025-02-06 04:19:21,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:21,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:19:21,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:22,736 INFO L124 PetriNetUnfolderBase]: 17187/23691 cut-off events. [2025-02-06 04:19:22,736 INFO L125 PetriNetUnfolderBase]: For 34594/34594 co-relation queries the response was YES. [2025-02-06 04:19:22,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71947 conditions, 23691 events. 17187/23691 cut-off events. For 34594/34594 co-relation queries the response was YES. Maximal size of possible extension queue 771. Compared 133742 event pairs, 1315 based on Foata normal form. 16/23703 useless extension candidates. Maximal degree in co-relation 71925. Up to 12800 conditions per place. [2025-02-06 04:19:22,887 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 77 selfloop transitions, 4 changer transitions 60/146 dead transitions. [2025-02-06 04:19:22,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 146 transitions, 994 flow [2025-02-06 04:19:22,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:19:22,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:19:22,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 184 transitions. [2025-02-06 04:19:22,888 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46 [2025-02-06 04:19:22,888 INFO L175 Difference]: Start difference. First operand has 74 places, 57 transitions, 290 flow. Second operand 8 states and 184 transitions. [2025-02-06 04:19:22,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 146 transitions, 994 flow [2025-02-06 04:19:23,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 146 transitions, 725 flow, removed 56 selfloop flow, removed 13 redundant places. [2025-02-06 04:19:23,171 INFO L231 Difference]: Finished difference. Result has 71 places, 56 transitions, 189 flow [2025-02-06 04:19:23,172 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=189, PETRI_PLACES=71, PETRI_TRANSITIONS=56} [2025-02-06 04:19:23,172 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 13 predicate places. [2025-02-06 04:19:23,172 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 56 transitions, 189 flow [2025-02-06 04:19:23,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2025-02-06 04:19:23,173 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:23,173 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] [2025-02-06 04:19:23,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 04:19:23,173 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:19:23,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:23,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1973345197, now seen corresponding path program 2 times [2025-02-06 04:19:23,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115036874] [2025-02-06 04:19:23,174 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-02-06 04:19:23,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:23,181 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 38 statements into 1 equivalence classes. [2025-02-06 04:19:23,194 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 04:19:23,194 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-02-06 04:19:23,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:23,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:23,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:23,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115036874] [2025-02-06 04:19:23,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115036874] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:23,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:23,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 04:19:23,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002154003] [2025-02-06 04:19:23,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:23,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:19:23,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:23,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:19:23,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:19:23,435 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:19:23,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 56 transitions, 189 flow. Second operand has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2025-02-06 04:19:23,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:23,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:19:23,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:24,639 INFO L124 PetriNetUnfolderBase]: 12889/18101 cut-off events. [2025-02-06 04:19:24,639 INFO L125 PetriNetUnfolderBase]: For 5836/5836 co-relation queries the response was YES. [2025-02-06 04:19:24,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43361 conditions, 18101 events. 12889/18101 cut-off events. For 5836/5836 co-relation queries the response was YES. Maximal size of possible extension queue 627. Compared 102322 event pairs, 3271 based on Foata normal form. 16/18115 useless extension candidates. Maximal degree in co-relation 43343. Up to 8820 conditions per place. [2025-02-06 04:19:24,740 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 56 selfloop transitions, 3 changer transitions 78/142 dead transitions. [2025-02-06 04:19:24,740 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 142 transitions, 732 flow [2025-02-06 04:19:24,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:19:24,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:19:24,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 180 transitions. [2025-02-06 04:19:24,741 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45 [2025-02-06 04:19:24,741 INFO L175 Difference]: Start difference. First operand has 71 places, 56 transitions, 189 flow. Second operand 8 states and 180 transitions. [2025-02-06 04:19:24,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 142 transitions, 732 flow [2025-02-06 04:19:24,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 142 transitions, 718 flow, removed 5 selfloop flow, removed 4 redundant places. [2025-02-06 04:19:24,746 INFO L231 Difference]: Finished difference. Result has 74 places, 54 transitions, 186 flow [2025-02-06 04:19:24,746 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=186, PETRI_PLACES=74, PETRI_TRANSITIONS=54} [2025-02-06 04:19:24,747 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 16 predicate places. [2025-02-06 04:19:24,747 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 54 transitions, 186 flow [2025-02-06 04:19:24,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.714285714285714) internal successors, (96), 7 states have internal predecessors, (96), 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) [2025-02-06 04:19:24,747 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:24,747 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] [2025-02-06 04:19:24,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 04:19:24,747 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:19:24,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:24,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1298417433, now seen corresponding path program 3 times [2025-02-06 04:19:24,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:24,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669447520] [2025-02-06 04:19:24,748 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-02-06 04:19:24,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:24,758 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 38 statements into 1 equivalence classes. [2025-02-06 04:19:24,802 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-02-06 04:19:24,802 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-02-06 04:19:24,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat