./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 473191b5f1326a38296af26dcd2c7f553c42833f82b512e9fb358484309bc769 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 02:08:03,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 02:08:03,637 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-04 02:08:03,640 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 02:08:03,641 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 02:08:03,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 02:08:03,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 02:08:03,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 02:08:03,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-04 02:08:03,660 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-04 02:08:03,661 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 02:08:03,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 02:08:03,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 02:08:03,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 02:08:03,662 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 02:08:03,662 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 02:08:03,663 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:08:03,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 02:08:03,663 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 02:08:03,663 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/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 -> 473191b5f1326a38296af26dcd2c7f553c42833f82b512e9fb358484309bc769 [2025-03-04 02:08:03,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 02:08:03,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 02:08:03,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 02:08:03,934 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 02:08:03,934 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 02:08:03,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-03-04 02:08:05,116 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f78ff31/71997ce9d86c43c1931c36a494f78d46/FLAG24129cf29 [2025-03-04 02:08:05,423 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 02:08:05,426 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-03-04 02:08:05,440 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f78ff31/71997ce9d86c43c1931c36a494f78d46/FLAG24129cf29 [2025-03-04 02:08:05,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82f78ff31/71997ce9d86c43c1931c36a494f78d46 [2025-03-04 02:08:05,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 02:08:05,697 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 02:08:05,698 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 02:08:05,698 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 02:08:05,701 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 02:08:05,702 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:08:05" (1/1) ... [2025-03-04 02:08:05,704 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc6820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:05, skipping insertion in model container [2025-03-04 02:08:05,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 02:08:05" (1/1) ... [2025-03-04 02:08:05,732 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 02:08:05,838 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2025-03-04 02:08:05,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:08:05,974 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 02:08:05,982 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2025-03-04 02:08:06,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 02:08:06,042 INFO L204 MainTranslator]: Completed translation [2025-03-04 02:08:06,043 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06 WrapperNode [2025-03-04 02:08:06,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 02:08:06,044 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 02:08:06,044 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 02:08:06,044 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 02:08:06,048 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,056 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,074 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2025-03-04 02:08:06,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 02:08:06,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 02:08:06,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 02:08:06,075 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 02:08:06,081 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,084 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,096 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]. [2025-03-04 02:08:06,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,101 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,104 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 02:08:06,116 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 02:08:06,117 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 02:08:06,117 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 02:08:06,118 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (1/1) ... [2025-03-04 02:08:06,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 02:08:06,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 02:08:06,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-04 02:08:06,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-04 02:08:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-04 02:08:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 02:08:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-04 02:08:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-04 02:08:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-04 02:08:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-04 02:08:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-04 02:08:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-04 02:08:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-04 02:08:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-04 02:08:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-04 02:08:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-04 02:08:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 02:08:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 02:08:06,167 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 02:08:06,269 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 02:08:06,270 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 02:08:06,514 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 02:08:06,514 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 02:08:06,684 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 02:08:06,684 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 02:08:06,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:08:06 BoogieIcfgContainer [2025-03-04 02:08:06,685 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 02:08:06,687 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 02:08:06,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 02:08:06,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 02:08:06,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 02:08:05" (1/3) ... [2025-03-04 02:08:06,693 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3bb9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:08:06, skipping insertion in model container [2025-03-04 02:08:06,693 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 02:08:06" (2/3) ... [2025-03-04 02:08:06,696 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b3bb9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 02:08:06, skipping insertion in model container [2025-03-04 02:08:06,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 02:08:06" (3/3) ... [2025-03-04 02:08:06,697 INFO L128 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-03-04 02:08:06,711 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 02:08:06,715 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i that has 5 procedures, 50 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-04 02:08:06,715 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 02:08:06,790 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-04 02:08:06,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2025-03-04 02:08:06,846 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-03-04 02:08:06,849 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 02:08:06,851 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 94 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. [2025-03-04 02:08:06,851 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2025-03-04 02:08:06,856 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2025-03-04 02:08:06,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 02:08:06,875 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;@8cbb7f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 02:08:06,875 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-04 02:08:06,886 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 02:08:06,886 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-04 02:08:06,886 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 02:08:06,886 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:08:06,887 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:08:06,887 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-04 02:08:06,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:08:06,892 INFO L85 PathProgramCache]: Analyzing trace with hash -834737167, now seen corresponding path program 1 times [2025-03-04 02:08:06,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:08:06,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141259283] [2025-03-04 02:08:06,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:08:06,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:08:06,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-04 02:08:07,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-04 02:08:07,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:08:07,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:08:07,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:08:07,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:08:07,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141259283] [2025-03-04 02:08:07,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141259283] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:08:07,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:08:07,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-04 02:08:07,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319624216] [2025-03-04 02:08:07,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:08:07,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 02:08:07,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:08:07,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 02:08:07,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 02:08:07,340 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-03-04 02:08:07,342 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) [2025-03-04 02:08:07,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:08:07,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-03-04 02:08:07,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:08:11,110 INFO L124 PetriNetUnfolderBase]: 46139/61167 cut-off events. [2025-03-04 02:08:11,110 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2025-03-04 02:08:11,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122171 conditions, 61167 events. 46139/61167 cut-off events. For 236/236 co-relation queries the response was YES. Maximal size of possible extension queue 1742. Compared 351819 event pairs, 5315 based on Foata normal form. 1728/62622 useless extension candidates. Maximal degree in co-relation 122159. Up to 52921 conditions per place. [2025-03-04 02:08:11,473 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 55 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2025-03-04 02:08:11,474 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 66 transitions, 262 flow [2025-03-04 02:08:11,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 02:08:11,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 02:08:11,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2025-03-04 02:08:11,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2025-03-04 02:08:11,489 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 95 transitions. [2025-03-04 02:08:11,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 66 transitions, 262 flow [2025-03-04 02:08:11,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-04 02:08:11,499 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2025-03-04 02:08:11,502 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} [2025-03-04 02:08:11,505 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2025-03-04 02:08:11,505 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2025-03-04 02:08:11,506 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) [2025-03-04 02:08:11,506 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:08:11,506 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:08:11,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 02:08:11,507 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)] === [2025-03-04 02:08:11,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:08:11,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1494029827, now seen corresponding path program 1 times [2025-03-04 02:08:11,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:08:11,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75292327] [2025-03-04 02:08:11,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:08:11,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:08:11,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-04 02:08:11,549 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-04 02:08:11,550 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:08:11,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:08:12,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:08:12,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:08:12,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75292327] [2025-03-04 02:08:12,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75292327] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:08:12,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:08:12,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 02:08:12,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960239696] [2025-03-04 02:08:12,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:08:12,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:08:12,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:08:12,113 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:08:12,113 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 02:08:12,118 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-03-04 02:08:12,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 flow. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2025-03-04 02:08:12,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:08:12,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-03-04 02:08:12,119 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:08:20,005 INFO L124 PetriNetUnfolderBase]: 122448/162426 cut-off events. [2025-03-04 02:08:20,005 INFO L125 PetriNetUnfolderBase]: For 4556/4556 co-relation queries the response was YES. [2025-03-04 02:08:20,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 328961 conditions, 162426 events. 122448/162426 cut-off events. For 4556/4556 co-relation queries the response was YES. Maximal size of possible extension queue 4271. Compared 1045729 event pairs, 8081 based on Foata normal form. 0/159441 useless extension candidates. Maximal degree in co-relation 328951. Up to 64571 conditions per place. [2025-03-04 02:08:20,772 INFO L140 encePairwiseOnDemand]: 35/50 looper letters, 81 selfloop transitions, 13 changer transitions 171/270 dead transitions. [2025-03-04 02:08:20,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 270 transitions, 1112 flow [2025-03-04 02:08:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-04 02:08:20,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-04 02:08:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 376 transitions. [2025-03-04 02:08:20,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6266666666666667 [2025-03-04 02:08:20,774 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 12 states and 376 transitions. [2025-03-04 02:08:20,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 270 transitions, 1112 flow [2025-03-04 02:08:20,785 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 270 transitions, 1088 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 02:08:20,789 INFO L231 Difference]: Finished difference. Result has 74 places, 54 transitions, 246 flow [2025-03-04 02:08:20,790 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=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=246, PETRI_PLACES=74, PETRI_TRANSITIONS=54} [2025-03-04 02:08:20,790 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 16 predicate places. [2025-03-04 02:08:20,790 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 54 transitions, 246 flow [2025-03-04 02:08:20,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2025-03-04 02:08:20,790 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:08:20,790 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:08:20,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 02:08:20,791 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)] === [2025-03-04 02:08:20,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:08:20,793 INFO L85 PathProgramCache]: Analyzing trace with hash 109782878, now seen corresponding path program 1 times [2025-03-04 02:08:20,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:08:20,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568203732] [2025-03-04 02:08:20,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:08:20,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:08:20,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-04 02:08:20,820 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-04 02:08:20,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:08:20,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:08:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:08:21,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:08:21,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568203732] [2025-03-04 02:08:21,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568203732] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:08:21,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:08:21,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-04 02:08:21,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127525936] [2025-03-04 02:08:21,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:08:21,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-04 02:08:21,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:08:21,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-04 02:08:21,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-04 02:08:21,019 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-03-04 02:08:21,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 54 transitions, 246 flow. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2025-03-04 02:08:21,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:08:21,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-03-04 02:08:21,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:08:28,040 INFO L124 PetriNetUnfolderBase]: 87979/118467 cut-off events. [2025-03-04 02:08:28,040 INFO L125 PetriNetUnfolderBase]: For 166990/166996 co-relation queries the response was YES. [2025-03-04 02:08:28,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357080 conditions, 118467 events. 87979/118467 cut-off events. For 166990/166996 co-relation queries the response was YES. Maximal size of possible extension queue 2945. Compared 741819 event pairs, 23469 based on Foata normal form. 2976/121395 useless extension candidates. Maximal degree in co-relation 357059. Up to 66605 conditions per place. [2025-03-04 02:08:28,931 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 73 selfloop transitions, 3 changer transitions 101/182 dead transitions. [2025-03-04 02:08:28,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 182 transitions, 1206 flow [2025-03-04 02:08:28,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-04 02:08:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-04 02:08:28,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 198 transitions. [2025-03-04 02:08:28,933 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5657142857142857 [2025-03-04 02:08:28,933 INFO L175 Difference]: Start difference. First operand has 74 places, 54 transitions, 246 flow. Second operand 7 states and 198 transitions. [2025-03-04 02:08:28,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 182 transitions, 1206 flow [2025-03-04 02:08:32,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 182 transitions, 1138 flow, removed 34 selfloop flow, removed 4 redundant places. [2025-03-04 02:08:32,605 INFO L231 Difference]: Finished difference. Result has 72 places, 54 transitions, 247 flow [2025-03-04 02:08:32,606 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=72, PETRI_TRANSITIONS=54} [2025-03-04 02:08:32,606 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 14 predicate places. [2025-03-04 02:08:32,606 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 54 transitions, 247 flow [2025-03-04 02:08:32,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 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) [2025-03-04 02:08:32,607 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:08:32,607 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] [2025-03-04 02:08:32,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 02:08:32,607 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)] === [2025-03-04 02:08:32,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:08:32,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1144070769, now seen corresponding path program 1 times [2025-03-04 02:08:32,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:08:32,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225182984] [2025-03-04 02:08:32,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:08:32,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:08:32,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-04 02:08:32,626 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-04 02:08:32,626 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:08:32,626 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:08:32,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:08:32,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:08:32,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225182984] [2025-03-04 02:08:32,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225182984] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:08:32,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:08:32,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 02:08:32,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117200678] [2025-03-04 02:08:32,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:08:32,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 02:08:32,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:08:32,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 02:08:32,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-04 02:08:32,957 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-03-04 02:08:32,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 54 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2025-03-04 02:08:32,958 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:08:32,958 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-03-04 02:08:32,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 02:08:39,586 INFO L124 PetriNetUnfolderBase]: 79538/106509 cut-off events. [2025-03-04 02:08:39,586 INFO L125 PetriNetUnfolderBase]: For 159282/159305 co-relation queries the response was YES. [2025-03-04 02:08:40,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 316270 conditions, 106509 events. 79538/106509 cut-off events. For 159282/159305 co-relation queries the response was YES. Maximal size of possible extension queue 2508. Compared 665566 event pairs, 3639 based on Foata normal form. 1845/108333 useless extension candidates. Maximal degree in co-relation 316246. Up to 54332 conditions per place. [2025-03-04 02:08:40,549 INFO L140 encePairwiseOnDemand]: 36/50 looper letters, 86 selfloop transitions, 16 changer transitions 110/217 dead transitions. [2025-03-04 02:08:40,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 217 transitions, 1347 flow [2025-03-04 02:08:40,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-04 02:08:40,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-04 02:08:40,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 285 transitions. [2025-03-04 02:08:40,551 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.57 [2025-03-04 02:08:40,551 INFO L175 Difference]: Start difference. First operand has 72 places, 54 transitions, 247 flow. Second operand 10 states and 285 transitions. [2025-03-04 02:08:40,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 217 transitions, 1347 flow [2025-03-04 02:08:43,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 217 transitions, 1309 flow, removed 14 selfloop flow, removed 6 redundant places. [2025-03-04 02:08:43,692 INFO L231 Difference]: Finished difference. Result has 80 places, 66 transitions, 428 flow [2025-03-04 02:08:43,692 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=428, PETRI_PLACES=80, PETRI_TRANSITIONS=66} [2025-03-04 02:08:43,692 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2025-03-04 02:08:43,692 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 66 transitions, 428 flow [2025-03-04 02:08:43,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 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) [2025-03-04 02:08:43,693 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 02:08:43,693 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 02:08:43,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 02:08:43,693 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)] === [2025-03-04 02:08:43,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 02:08:43,693 INFO L85 PathProgramCache]: Analyzing trace with hash 762687638, now seen corresponding path program 1 times [2025-03-04 02:08:43,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 02:08:43,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80043537] [2025-03-04 02:08:43,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 02:08:43,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 02:08:43,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-03-04 02:08:43,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-03-04 02:08:43,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 02:08:43,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 02:08:44,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 02:08:44,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 02:08:44,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80043537] [2025-03-04 02:08:44,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80043537] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 02:08:44,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 02:08:44,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-04 02:08:44,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910848301] [2025-03-04 02:08:44,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 02:08:44,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-04 02:08:44,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 02:08:44,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-04 02:08:44,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-03-04 02:08:44,637 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-03-04 02:08:44,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 66 transitions, 428 flow. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 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) [2025-03-04 02:08:44,637 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 02:08:44,637 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-03-04 02:08:44,637 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand