./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c22ca6d642b28badc1dc02a5cc527ddbb1f35b5d6d2e3ba3e8f314e81f0fd465 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:18:40,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:18:40,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:18:40,764 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:18:40,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:18:40,786 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:18:40,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:18:40,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:18:40,787 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:18:40,787 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:18:40,788 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:18:40,788 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:18:40,789 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:18:40,789 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:18:40,789 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:18:40,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:18:40,789 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:18:40,790 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:18:40,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:18:40,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:18:40,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:18:40,791 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:18:40,791 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:18:40,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:18:40,791 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:18:40,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:18:40,791 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:18:40,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:18:40,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:18:40,792 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:18:40,792 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:18:40,792 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:18:40,792 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c22ca6d642b28badc1dc02a5cc527ddbb1f35b5d6d2e3ba3e8f314e81f0fd465 [2025-02-06 04:18:41,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:18:41,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:18:41,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:18:41,085 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:18:41,085 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:18:41,086 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i [2025-02-06 04:18:42,269 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a5d7b6be/617672968c54422d9b06f8664143af88/FLAG484e3744e [2025-02-06 04:18:42,591 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:18:42,591 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i [2025-02-06 04:18:42,604 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a5d7b6be/617672968c54422d9b06f8664143af88/FLAG484e3744e [2025-02-06 04:18:42,843 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/9a5d7b6be/617672968c54422d9b06f8664143af88 [2025-02-06 04:18:42,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:18:42,846 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:18:42,847 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:18:42,847 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:18:42,849 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:18:42,850 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:18:42" (1/1) ... [2025-02-06 04:18:42,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5084ae37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:42, skipping insertion in model container [2025-02-06 04:18:42,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:18:42" (1/1) ... [2025-02-06 04:18:42,869 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:18:42,957 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i[949,962] [2025-02-06 04:18:43,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:18:43,083 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:18:43,093 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix005_tso.oepc.i[949,962] [2025-02-06 04:18:43,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:18:43,173 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:18:43,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43 WrapperNode [2025-02-06 04:18:43,175 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:18:43,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:18:43,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:18:43,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:18:43,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,191 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,218 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 148 [2025-02-06 04:18:43,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:18:43,219 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:18:43,219 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:18:43,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:18:43,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,229 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,248 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 04:18:43,248 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,248 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,257 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,257 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,265 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:18:43,269 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:18:43,269 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:18:43,269 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:18:43,270 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (1/1) ... [2025-02-06 04:18:43,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:18:43,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:18:43,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 04:18:43,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 04:18:43,327 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 04:18:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:18:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 04:18:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 04:18:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 04:18:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 04:18:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 04:18:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 04:18:43,328 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 04:18:43,329 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 04:18:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:18:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 04:18:43,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:18:43,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:18:43,330 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 04:18:43,449 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:18:43,451 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:18:43,778 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:18:43,778 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:18:43,944 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:18:43,945 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:18:43,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:18:43 BoogieIcfgContainer [2025-02-06 04:18:43,945 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:18:43,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:18:43,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:18:43,949 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:18:43,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:18:42" (1/3) ... [2025-02-06 04:18:43,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e01c1c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:18:43, skipping insertion in model container [2025-02-06 04:18:43,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:18:43" (2/3) ... [2025-02-06 04:18:43,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e01c1c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:18:43, skipping insertion in model container [2025-02-06 04:18:43,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:18:43" (3/3) ... [2025-02-06 04:18:43,951 INFO L128 eAbstractionObserver]: Analyzing ICFG mix005_tso.oepc.i [2025-02-06 04:18:43,960 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:18:43,962 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix005_tso.oepc.i that has 5 procedures, 50 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 04:18:43,962 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:18:44,012 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 04:18:44,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2025-02-06 04:18:44,072 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-02-06 04:18:44,075 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:18:44,080 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 102 event pairs, 0 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2025-02-06 04:18:44,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2025-02-06 04:18:44,083 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2025-02-06 04:18:44,093 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:18:44,105 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;@41dd3a27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:18:44,105 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-06 04:18:44,110 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:18:44,111 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2025-02-06 04:18:44,111 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:18:44,111 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:18:44,111 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-06 04:18:44,112 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:18:44,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:18:44,116 INFO L85 PathProgramCache]: Analyzing trace with hash -124028116, now seen corresponding path program 1 times [2025-02-06 04:18:44,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:18:44,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117026529] [2025-02-06 04:18:44,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:18:44,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:18:44,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-06 04:18:44,221 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-06 04:18:44,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:18:44,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:18:44,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:18:44,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:18:44,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117026529] [2025-02-06 04:18:44,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117026529] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:18:44,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:18:44,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 04:18:44,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500771116] [2025-02-06 04:18:44,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:18:44,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:18:44,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:18:44,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:18:44,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:18:44,460 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 04:18:44,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:18:44,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:18:44,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 04:18:44,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:18:48,774 INFO L124 PetriNetUnfolderBase]: 47351/62827 cut-off events. [2025-02-06 04:18:48,775 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2025-02-06 04:18:48,913 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125475 conditions, 62827 events. 47351/62827 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 1842. Compared 379804 event pairs, 5861 based on Foata normal form. 1722/64245 useless extension candidates. Maximal degree in co-relation 125463. Up to 53731 conditions per place. [2025-02-06 04:18:49,149 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 61 selfloop transitions, 2 changer transitions 2/72 dead transitions. [2025-02-06 04:18:49,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 292 flow [2025-02-06 04:18:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:18:49,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:18:49,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 101 transitions. [2025-02-06 04:18:49,294 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6733333333333333 [2025-02-06 04:18:49,295 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 101 transitions. [2025-02-06 04:18:49,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 292 flow [2025-02-06 04:18:49,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 72 transitions, 286 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 04:18:49,301 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2025-02-06 04:18:49,302 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=98, PETRI_PLACES=55, PETRI_TRANSITIONS=43} [2025-02-06 04:18:49,304 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2025-02-06 04:18:49,304 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2025-02-06 04:18:49,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:18:49,305 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:18:49,305 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:18:49,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:18:49,305 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:18:49,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:18:49,306 INFO L85 PathProgramCache]: Analyzing trace with hash 696879206, now seen corresponding path program 1 times [2025-02-06 04:18:49,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:18:49,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210576276] [2025-02-06 04:18:49,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:18:49,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:18:49,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 04:18:49,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 04:18:49,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:18:49,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:18:49,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:18:49,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:18:49,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210576276] [2025-02-06 04:18:49,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210576276] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:18:49,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:18:49,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 04:18:49,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243135052] [2025-02-06 04:18:49,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:18:49,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 04:18:49,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:18:49,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 04:18:49,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 04:18:49,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:18:49,826 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) [2025-02-06 04:18:49,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:18:49,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:18:49,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:18:55,035 INFO L124 PetriNetUnfolderBase]: 62843/83891 cut-off events. [2025-02-06 04:18:55,036 INFO L125 PetriNetUnfolderBase]: For 3288/3288 co-relation queries the response was YES. [2025-02-06 04:18:55,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170357 conditions, 83891 events. 62843/83891 cut-off events. For 3288/3288 co-relation queries the response was YES. Maximal size of possible extension queue 2343. Compared 514017 event pairs, 10583 based on Foata normal form. 0/82614 useless extension candidates. Maximal degree in co-relation 170347. Up to 44905 conditions per place. [2025-02-06 04:18:55,412 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 57 selfloop transitions, 2 changer transitions 102/166 dead transitions. [2025-02-06 04:18:55,412 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 166 transitions, 680 flow [2025-02-06 04:18:55,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:18:55,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:18:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 235 transitions. [2025-02-06 04:18:55,416 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5875 [2025-02-06 04:18:55,416 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 8 states and 235 transitions. [2025-02-06 04:18:55,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 166 transitions, 680 flow [2025-02-06 04:18:55,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 166 transitions, 664 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 04:18:55,424 INFO L231 Difference]: Finished difference. Result has 64 places, 42 transitions, 108 flow [2025-02-06 04:18:55,424 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=108, PETRI_PLACES=64, PETRI_TRANSITIONS=42} [2025-02-06 04:18:55,425 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2025-02-06 04:18:55,425 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 42 transitions, 108 flow [2025-02-06 04:18:55,425 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) [2025-02-06 04:18:55,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:18:55,425 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:18:55,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:18:55,426 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:18:55,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:18:55,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1226051529, now seen corresponding path program 1 times [2025-02-06 04:18:55,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:18:55,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462151640] [2025-02-06 04:18:55,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:18:55,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:18:55,447 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-02-06 04:18:55,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-02-06 04:18:55,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:18:55,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:18:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:18:55,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:18:55,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462151640] [2025-02-06 04:18:55,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462151640] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:18:55,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:18:55,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:18:55,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956312224] [2025-02-06 04:18:55,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:18:55,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:18:55,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:18:55,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:18:55,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:18:55,732 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:18:55,733 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 42 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:18:55,733 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:18:55,733 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:18:55,733 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:18:59,879 INFO L124 PetriNetUnfolderBase]: 45755/61331 cut-off events. [2025-02-06 04:18:59,879 INFO L125 PetriNetUnfolderBase]: For 10216/10216 co-relation queries the response was YES. [2025-02-06 04:19:00,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 132358 conditions, 61331 events. 45755/61331 cut-off events. For 10216/10216 co-relation queries the response was YES. Maximal size of possible extension queue 1580. Compared 357022 event pairs, 10679 based on Foata normal form. 1260/62556 useless extension candidates. Maximal degree in co-relation 132343. Up to 38761 conditions per place. [2025-02-06 04:19:00,207 INFO L140 encePairwiseOnDemand]: 45/50 looper letters, 55 selfloop transitions, 2 changer transitions 71/133 dead transitions. [2025-02-06 04:19:00,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 133 transitions, 559 flow [2025-02-06 04:19:00,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:19:00,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 04:19:00,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 193 transitions. [2025-02-06 04:19:00,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5514285714285714 [2025-02-06 04:19:00,209 INFO L175 Difference]: Start difference. First operand has 64 places, 42 transitions, 108 flow. Second operand 7 states and 193 transitions. [2025-02-06 04:19:00,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 133 transitions, 559 flow [2025-02-06 04:19:00,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 133 transitions, 537 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-06 04:19:00,843 INFO L231 Difference]: Finished difference. Result has 63 places, 42 transitions, 112 flow [2025-02-06 04:19:00,843 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=112, PETRI_PLACES=63, PETRI_TRANSITIONS=42} [2025-02-06 04:19:00,843 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2025-02-06 04:19:00,844 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 42 transitions, 112 flow [2025-02-06 04:19:00,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:00,844 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:00,844 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:19:00,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 04:19:00,844 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:19:00,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:00,845 INFO L85 PathProgramCache]: Analyzing trace with hash -544564901, now seen corresponding path program 1 times [2025-02-06 04:19:00,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:00,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927659220] [2025-02-06 04:19:00,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:00,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:00,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 04:19:00,867 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 04:19:00,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:00,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:01,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:01,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:01,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927659220] [2025-02-06 04:19:01,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [927659220] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:01,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:01,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:19:01,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211767944] [2025-02-06 04:19:01,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:01,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:19:01,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:01,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:19:01,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:19:01,493 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:19:01,494 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 42 transitions, 112 flow. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:01,494 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:01,494 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:19:01,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:05,574 INFO L124 PetriNetUnfolderBase]: 43767/58672 cut-off events. [2025-02-06 04:19:05,574 INFO L125 PetriNetUnfolderBase]: For 9752/9752 co-relation queries the response was YES. [2025-02-06 04:19:05,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128126 conditions, 58672 events. 43767/58672 cut-off events. For 9752/9752 co-relation queries the response was YES. Maximal size of possible extension queue 1400. Compared 349829 event pairs, 6895 based on Foata normal form. 924/59592 useless extension candidates. Maximal degree in co-relation 128110. Up to 48562 conditions per place. [2025-02-06 04:19:05,983 INFO L140 encePairwiseOnDemand]: 36/50 looper letters, 74 selfloop transitions, 12 changer transitions 83/174 dead transitions. [2025-02-06 04:19:05,983 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 174 transitions, 754 flow [2025-02-06 04:19:05,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 04:19:05,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 04:19:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions. [2025-02-06 04:19:05,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.524 [2025-02-06 04:19:05,985 INFO L175 Difference]: Start difference. First operand has 63 places, 42 transitions, 112 flow. Second operand 10 states and 262 transitions. [2025-02-06 04:19:05,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 174 transitions, 754 flow [2025-02-06 04:19:06,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 174 transitions, 726 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-02-06 04:19:06,522 INFO L231 Difference]: Finished difference. Result has 70 places, 53 transitions, 221 flow [2025-02-06 04:19:06,523 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=221, PETRI_PLACES=70, PETRI_TRANSITIONS=53} [2025-02-06 04:19:06,523 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 12 predicate places. [2025-02-06 04:19:06,523 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 53 transitions, 221 flow [2025-02-06 04:19:06,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 7 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:06,528 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:06,528 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:19:06,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:19:06,528 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:19:06,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:06,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1931039111, now seen corresponding path program 1 times [2025-02-06 04:19:06,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:06,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133567448] [2025-02-06 04:19:06,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:06,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:06,539 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:19:06,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:19:06,570 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:06,570 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:07,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:07,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133567448] [2025-02-06 04:19:07,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133567448] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:07,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:07,118 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:19:07,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696981244] [2025-02-06 04:19:07,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:07,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:19:07,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:07,119 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:19:07,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:19:07,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:19:07,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 53 transitions, 221 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:07,122 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:07,122 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:19:07,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:11,109 INFO L124 PetriNetUnfolderBase]: 45372/60717 cut-off events. [2025-02-06 04:19:11,109 INFO L125 PetriNetUnfolderBase]: For 91031/91034 co-relation queries the response was YES. [2025-02-06 04:19:11,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 184013 conditions, 60717 events. 45372/60717 cut-off events. For 91031/91034 co-relation queries the response was YES. Maximal size of possible extension queue 1413. Compared 358915 event pairs, 6863 based on Foata normal form. 836/61549 useless extension candidates. Maximal degree in co-relation 183993. Up to 48088 conditions per place. [2025-02-06 04:19:11,521 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 88 selfloop transitions, 7 changer transitions 61/161 dead transitions. [2025-02-06 04:19:11,521 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 161 transitions, 981 flow [2025-02-06 04:19:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:19:11,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:19:11,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 221 transitions. [2025-02-06 04:19:11,522 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5525 [2025-02-06 04:19:11,522 INFO L175 Difference]: Start difference. First operand has 70 places, 53 transitions, 221 flow. Second operand 8 states and 221 transitions. [2025-02-06 04:19:11,523 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 161 transitions, 981 flow [2025-02-06 04:19:11,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 161 transitions, 973 flow, removed 4 selfloop flow, removed 2 redundant places. [2025-02-06 04:19:11,725 INFO L231 Difference]: Finished difference. Result has 74 places, 57 transitions, 296 flow [2025-02-06 04:19:11,725 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=296, PETRI_PLACES=74, PETRI_TRANSITIONS=57} [2025-02-06 04:19:11,726 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 16 predicate places. [2025-02-06 04:19:11,726 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 57 transitions, 296 flow [2025-02-06 04:19:11,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:11,726 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:11,726 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:19:11,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:19:11,726 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:19:11,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:11,727 INFO L85 PathProgramCache]: Analyzing trace with hash 104458197, now seen corresponding path program 1 times [2025-02-06 04:19:11,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:11,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233122201] [2025-02-06 04:19:11,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:11,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:11,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-02-06 04:19:11,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-02-06 04:19:11,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:11,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:12,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:12,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:12,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233122201] [2025-02-06 04:19:12,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233122201] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:12,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:12,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:19:12,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418887187] [2025-02-06 04:19:12,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:12,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:19:12,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:12,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:19:12,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:19:12,037 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:19:12,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 57 transitions, 296 flow. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:12,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:12,037 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:19:12,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:19:16,905 INFO L124 PetriNetUnfolderBase]: 44249/58865 cut-off events. [2025-02-06 04:19:16,906 INFO L125 PetriNetUnfolderBase]: For 172230/172233 co-relation queries the response was YES. [2025-02-06 04:19:17,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207462 conditions, 58865 events. 44249/58865 cut-off events. For 172230/172233 co-relation queries the response was YES. Maximal size of possible extension queue 1410. Compared 343673 event pairs, 5374 based on Foata normal form. 623/59480 useless extension candidates. Maximal degree in co-relation 207437. Up to 46545 conditions per place. [2025-02-06 04:19:17,351 INFO L140 encePairwiseOnDemand]: 41/50 looper letters, 91 selfloop transitions, 12 changer transitions 78/186 dead transitions. [2025-02-06 04:19:17,351 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 186 transitions, 1360 flow [2025-02-06 04:19:17,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 04:19:17,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 04:19:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 260 transitions. [2025-02-06 04:19:17,352 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.52 [2025-02-06 04:19:17,352 INFO L175 Difference]: Start difference. First operand has 74 places, 57 transitions, 296 flow. Second operand 10 states and 260 transitions. [2025-02-06 04:19:17,352 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 186 transitions, 1360 flow [2025-02-06 04:19:18,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 186 transitions, 1331 flow, removed 10 selfloop flow, removed 4 redundant places. [2025-02-06 04:19:18,004 INFO L231 Difference]: Finished difference. Result has 82 places, 61 transitions, 382 flow [2025-02-06 04:19:18,004 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=382, PETRI_PLACES=82, PETRI_TRANSITIONS=61} [2025-02-06 04:19:18,004 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 24 predicate places. [2025-02-06 04:19:18,005 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 61 transitions, 382 flow [2025-02-06 04:19:18,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:18,005 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:19:18,005 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:19:18,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:19:18,005 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:19:18,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:19:18,005 INFO L85 PathProgramCache]: Analyzing trace with hash -2042421223, now seen corresponding path program 1 times [2025-02-06 04:19:18,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:19:18,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092785413] [2025-02-06 04:19:18,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:19:18,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:19:18,011 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-06 04:19:18,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-06 04:19:18,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:19:18,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:19:18,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 04:19:18,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:19:18,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092785413] [2025-02-06 04:19:18,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092785413] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:19:18,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:19:18,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 04:19:18,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862700322] [2025-02-06 04:19:18,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:19:18,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:19:18,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:19:18,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:19:18,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 04:19:18,648 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:19:18,649 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 61 transitions, 382 flow. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:19:18,649 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:19:18,649 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:19:18,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand