./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 735b3cc8 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-?-735b3cc-m [2025-03-14 00:51:08,883 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 00:51:08,956 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-14 00:51:08,960 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 00:51:08,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 00:51:08,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 00:51:08,981 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 00:51:08,981 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 00:51:08,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-14 00:51:08,983 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 00:51:08,983 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 00:51:08,983 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 00:51:08,983 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 00:51:08,984 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:51:08,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 00:51:08,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 00:51:08,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 00:51:08,985 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 00:51:08,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 00:51:08,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 00:51:08,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 00:51:08,985 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 [2025-03-14 00:51:09,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 00:51:09,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 00:51:09,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 00:51:09,205 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 00:51:09,205 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 00:51:09,207 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-03-14 00:51:10,385 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa20a553/bef470d1633847f5969e5cba1d9fee4d/FLAG38ff8d80f [2025-03-14 00:51:10,710 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 00:51:10,711 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-03-14 00:51:10,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa20a553/bef470d1633847f5969e5cba1d9fee4d/FLAG38ff8d80f [2025-03-14 00:51:10,753 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ffa20a553/bef470d1633847f5969e5cba1d9fee4d [2025-03-14 00:51:10,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 00:51:10,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 00:51:10,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 00:51:10,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 00:51:10,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 00:51:10,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:51:10" (1/1) ... [2025-03-14 00:51:10,765 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e9094b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:10, skipping insertion in model container [2025-03-14 00:51:10,765 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 12:51:10" (1/1) ... [2025-03-14 00:51:10,804 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 00:51:10,935 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] [2025-03-14 00:51:11,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:51:11,158 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 00:51:11,168 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] [2025-03-14 00:51:11,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 00:51:11,257 INFO L204 MainTranslator]: Completed translation [2025-03-14 00:51:11,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11 WrapperNode [2025-03-14 00:51:11,258 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 00:51:11,260 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 00:51:11,260 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 00:51:11,260 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 00:51:11,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,309 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 152 [2025-03-14 00:51:11,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 00:51:11,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 00:51:11,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 00:51:11,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 00:51:11,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,321 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,343 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]. [2025-03-14 00:51:11,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,343 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,350 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,355 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,357 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,366 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 00:51:11,367 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 00:51:11,367 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 00:51:11,367 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 00:51:11,368 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (1/1) ... [2025-03-14 00:51:11,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 00:51:11,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 00:51:11,399 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) [2025-03-14 00:51:11,402 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 [2025-03-14 00:51:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-14 00:51:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 00:51:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-03-14 00:51:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-03-14 00:51:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-03-14 00:51:11,420 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-03-14 00:51:11,420 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-03-14 00:51:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-03-14 00:51:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-03-14 00:51:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-03-14 00:51:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-14 00:51:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-14 00:51:11,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 00:51:11,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 00:51:11,422 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 00:51:11,550 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 00:51:11,552 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 00:51:12,018 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 00:51:12,020 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 00:51:12,020 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 00:51:12,245 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 00:51:12,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:51:12 BoogieIcfgContainer [2025-03-14 00:51:12,246 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 00:51:12,247 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 00:51:12,248 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 00:51:12,252 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 00:51:12,252 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 12:51:10" (1/3) ... [2025-03-14 00:51:12,253 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d67347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:51:12, skipping insertion in model container [2025-03-14 00:51:12,253 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 12:51:11" (2/3) ... [2025-03-14 00:51:12,254 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d67347 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 12:51:12, skipping insertion in model container [2025-03-14 00:51:12,254 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 12:51:12" (3/3) ... [2025-03-14 00:51:12,255 INFO L128 eAbstractionObserver]: Analyzing ICFG mix047_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2025-03-14 00:51:12,267 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 00:51:12,269 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. [2025-03-14 00:51:12,269 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 00:51:12,314 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-03-14 00:51:12,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2025-03-14 00:51:12,373 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-03-14 00:51:12,374 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:51:12,379 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. [2025-03-14 00:51:12,379 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2025-03-14 00:51:12,382 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2025-03-14 00:51:12,391 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 00:51:12,404 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;@4d9ef481, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 00:51:12,405 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-03-14 00:51:12,416 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 00:51:12,419 INFO L124 PetriNetUnfolderBase]: 0/25 cut-off events. [2025-03-14 00:51:12,419 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 00:51:12,420 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:51:12,420 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:51:12,420 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-03-14 00:51:12,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:51:12,426 INFO L85 PathProgramCache]: Analyzing trace with hash -834737167, now seen corresponding path program 1 times [2025-03-14 00:51:12,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:51:12,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730029277] [2025-03-14 00:51:12,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:51:12,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:51:12,503 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-14 00:51:12,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-14 00:51:12,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:51:12,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:51:12,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:51:12,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:51:12,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730029277] [2025-03-14 00:51:12,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730029277] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:51:12,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:51:12,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-14 00:51:12,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321563069] [2025-03-14 00:51:12,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:51:13,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 00:51:13,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:51:13,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 00:51:13,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 00:51:13,028 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-03-14 00:51:13,031 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) [2025-03-14 00:51:13,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:51:13,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-03-14 00:51:13,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:51:16,887 INFO L124 PetriNetUnfolderBase]: 46139/61167 cut-off events. [2025-03-14 00:51:16,887 INFO L125 PetriNetUnfolderBase]: For 236/236 co-relation queries the response was YES. [2025-03-14 00:51:17,000 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. [2025-03-14 00:51:17,274 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 55 selfloop transitions, 2 changer transitions 2/66 dead transitions. [2025-03-14 00:51:17,275 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 66 transitions, 262 flow [2025-03-14 00:51:17,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 00:51:17,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 00:51:17,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 95 transitions. [2025-03-14 00:51:17,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6333333333333333 [2025-03-14 00:51:17,286 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 95 transitions. [2025-03-14 00:51:17,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 66 transitions, 262 flow [2025-03-14 00:51:17,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 66 transitions, 258 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-14 00:51:17,297 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2025-03-14 00:51:17,299 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} [2025-03-14 00:51:17,302 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2025-03-14 00:51:17,303 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2025-03-14 00:51:17,303 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) [2025-03-14 00:51:17,303 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:51:17,303 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:51:17,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 00:51:17,304 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)] === [2025-03-14 00:51:17,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:51:17,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1494029827, now seen corresponding path program 1 times [2025-03-14 00:51:17,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:51:17,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492864652] [2025-03-14 00:51:17,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:51:17,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:51:17,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-14 00:51:17,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-14 00:51:17,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:51:17,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:51:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:51:17,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:51:17,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492864652] [2025-03-14 00:51:17,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492864652] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:51:17,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:51:17,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 00:51:17,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524482239] [2025-03-14 00:51:17,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:51:17,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 00:51:17,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:51:17,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 00:51:17,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-14 00:51:17,908 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-03-14 00:51:17,909 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) [2025-03-14 00:51:17,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:51:17,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-03-14 00:51:17,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:51:26,856 INFO L124 PetriNetUnfolderBase]: 121457/161489 cut-off events. [2025-03-14 00:51:26,857 INFO L125 PetriNetUnfolderBase]: For 4552/4552 co-relation queries the response was YES. [2025-03-14 00:51:27,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 326769 conditions, 161489 events. 121457/161489 cut-off events. For 4552/4552 co-relation queries the response was YES. Maximal size of possible extension queue 4230. Compared 1044757 event pairs, 4927 based on Foata normal form. 0/158426 useless extension candidates. Maximal degree in co-relation 326759. Up to 64433 conditions per place. [2025-03-14 00:51:27,636 INFO L140 encePairwiseOnDemand]: 35/50 looper letters, 77 selfloop transitions, 13 changer transitions 172/267 dead transitions. [2025-03-14 00:51:27,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 267 transitions, 1096 flow [2025-03-14 00:51:27,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-14 00:51:27,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2025-03-14 00:51:27,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 373 transitions. [2025-03-14 00:51:27,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6216666666666667 [2025-03-14 00:51:27,639 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 12 states and 373 transitions. [2025-03-14 00:51:27,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 267 transitions, 1096 flow [2025-03-14 00:51:27,657 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 267 transitions, 1072 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 00:51:27,661 INFO L231 Difference]: Finished difference. Result has 74 places, 54 transitions, 246 flow [2025-03-14 00:51:27,662 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} [2025-03-14 00:51:27,662 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 16 predicate places. [2025-03-14 00:51:27,662 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 54 transitions, 246 flow [2025-03-14 00:51:27,662 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) [2025-03-14 00:51:27,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:51:27,663 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-14 00:51:27,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 00:51:27,664 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)] === [2025-03-14 00:51:27,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:51:27,665 INFO L85 PathProgramCache]: Analyzing trace with hash -186311152, now seen corresponding path program 1 times [2025-03-14 00:51:27,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:51:27,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051739876] [2025-03-14 00:51:27,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:51:27,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:51:27,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-14 00:51:27,694 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-14 00:51:27,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:51:27,695 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:51:28,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:51:28,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:51:28,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051739876] [2025-03-14 00:51:28,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051739876] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:51:28,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:51:28,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 00:51:28,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230950897] [2025-03-14 00:51:28,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:51:28,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 00:51:28,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:51:28,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 00:51:28,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-03-14 00:51:28,060 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-03-14 00:51:28,060 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 54 transitions, 246 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:51:28,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:51:28,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-03-14 00:51:28,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:51:35,691 INFO L124 PetriNetUnfolderBase]: 88239/118014 cut-off events. [2025-03-14 00:51:35,691 INFO L125 PetriNetUnfolderBase]: For 166706/166706 co-relation queries the response was YES. [2025-03-14 00:51:36,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357959 conditions, 118014 events. 88239/118014 cut-off events. For 166706/166706 co-relation queries the response was YES. Maximal size of possible extension queue 2937. Compared 729270 event pairs, 18517 based on Foata normal form. 3040/121008 useless extension candidates. Maximal degree in co-relation 357938. Up to 41635 conditions per place. [2025-03-14 00:51:36,657 INFO L140 encePairwiseOnDemand]: 37/50 looper letters, 82 selfloop transitions, 18 changer transitions 130/235 dead transitions. [2025-03-14 00:51:36,657 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 235 transitions, 1494 flow [2025-03-14 00:51:36,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-14 00:51:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-14 00:51:36,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 290 transitions. [2025-03-14 00:51:36,663 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.58 [2025-03-14 00:51:36,663 INFO L175 Difference]: Start difference. First operand has 74 places, 54 transitions, 246 flow. Second operand 10 states and 290 transitions. [2025-03-14 00:51:36,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 235 transitions, 1494 flow [2025-03-14 00:51:41,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 235 transitions, 1412 flow, removed 41 selfloop flow, removed 4 redundant places. [2025-03-14 00:51:41,373 INFO L231 Difference]: Finished difference. Result has 79 places, 67 transitions, 444 flow [2025-03-14 00:51:41,373 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=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=444, PETRI_PLACES=79, PETRI_TRANSITIONS=67} [2025-03-14 00:51:41,373 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 21 predicate places. [2025-03-14 00:51:41,374 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 67 transitions, 444 flow [2025-03-14 00:51:41,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-14 00:51:41,374 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 00:51:41,374 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] [2025-03-14 00:51:41,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 00:51:41,374 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)] === [2025-03-14 00:51:41,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 00:51:41,375 INFO L85 PathProgramCache]: Analyzing trace with hash -997822607, now seen corresponding path program 1 times [2025-03-14 00:51:41,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 00:51:41,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924159024] [2025-03-14 00:51:41,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 00:51:41,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 00:51:41,381 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-14 00:51:41,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-14 00:51:41,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 00:51:41,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 00:51:41,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 00:51:41,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 00:51:41,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924159024] [2025-03-14 00:51:41,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924159024] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 00:51:41,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 00:51:41,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-14 00:51:41,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984643700] [2025-03-14 00:51:41,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 00:51:41,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-14 00:51:41,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 00:51:41,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-14 00:51:41,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-14 00:51:41,651 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-03-14 00:51:41,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 67 transitions, 444 flow. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 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) [2025-03-14 00:51:41,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 00:51:41,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-03-14 00:51:41,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 00:51:49,435 INFO L124 PetriNetUnfolderBase]: 78000/105238 cut-off events. [2025-03-14 00:51:49,435 INFO L125 PetriNetUnfolderBase]: For 286025/286028 co-relation queries the response was YES. [2025-03-14 00:51:49,843 INFO L83 FinitePrefix]: Finished finitePrefix Result has 355763 conditions, 105238 events. 78000/105238 cut-off events. For 286025/286028 co-relation queries the response was YES. Maximal size of possible extension queue 2448. Compared 653863 event pairs, 33994 based on Foata normal form. 1644/106873 useless extension candidates. Maximal degree in co-relation 355735. Up to 89636 conditions per place. [2025-03-14 00:51:50,143 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 84 selfloop transitions, 6 changer transitions 73/168 dead transitions. [2025-03-14 00:51:50,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 168 transitions, 1348 flow [2025-03-14 00:51:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-14 00:51:50,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-03-14 00:51:50,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 188 transitions. [2025-03-14 00:51:50,145 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5371428571428571 [2025-03-14 00:51:50,145 INFO L175 Difference]: Start difference. First operand has 79 places, 67 transitions, 444 flow. Second operand 7 states and 188 transitions. [2025-03-14 00:51:50,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 168 transitions, 1348 flow