./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix040_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/mix040_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 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 04:21:43,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 04:21:43,240 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 04:21:43,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 04:21:43,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 04:21:43,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 04:21:43,271 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 04:21:43,271 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 04:21:43,271 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 04:21:43,271 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 04:21:43,272 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 04:21:43,272 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 04:21:43,272 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 04:21:43,273 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 04:21:43,273 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 04:21:43,273 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 04:21:43,273 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 04:21:43,273 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 04:21:43,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 04:21:43,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 04:21:43,274 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 04:21:43,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:21:43,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 04:21:43,275 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 04:21:43,276 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 04:21:43,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 04:21:43,276 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 -> 26c011a0e45020881b0eb90c07839ec48e6b26942e49028568b078c64e0cf722 [2025-02-06 04:21:43,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 04:21:43,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 04:21:43,526 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 04:21:43,527 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 04:21:43,527 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 04:21:43,528 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2025-02-06 04:21:44,645 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c4182810/4abd9614e9554ff2ade8f44a336d556a/FLAG9ae920d9b [2025-02-06 04:21:44,905 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 04:21:44,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix040_tso.oepc.i [2025-02-06 04:21:44,922 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c4182810/4abd9614e9554ff2ade8f44a336d556a/FLAG9ae920d9b [2025-02-06 04:21:44,938 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/4c4182810/4abd9614e9554ff2ade8f44a336d556a [2025-02-06 04:21:44,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 04:21:44,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 04:21:44,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 04:21:44,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 04:21:44,947 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 04:21:44,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:21:44" (1/1) ... [2025-02-06 04:21:44,948 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1d2886 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:44, skipping insertion in model container [2025-02-06 04:21:44,948 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 04:21:44" (1/1) ... [2025-02-06 04:21:44,978 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 04:21:45,107 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/mix040_tso.oepc.i[949,962] [2025-02-06 04:21:45,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:21:45,289 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 04:21:45,297 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/mix040_tso.oepc.i[949,962] [2025-02-06 04:21:45,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 04:21:45,375 INFO L204 MainTranslator]: Completed translation [2025-02-06 04:21:45,375 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45 WrapperNode [2025-02-06 04:21:45,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 04:21:45,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 04:21:45,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 04:21:45,378 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 04:21:45,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,418 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 147 [2025-02-06 04:21:45,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 04:21:45,419 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 04:21:45,419 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 04:21:45,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 04:21:45,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,426 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,446 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 04:21:45,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,447 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,458 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,462 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 04:21:45,463 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 04:21:45,463 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 04:21:45,463 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 04:21:45,464 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (1/1) ... [2025-02-06 04:21:45,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 04:21:45,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 04:21:45,489 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 04:21:45,491 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 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-06 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-06 04:21:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-06 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-06 04:21:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-06 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-06 04:21:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-06 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-06 04:21:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-06 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-06 04:21:45,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 04:21:45,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 04:21:45,507 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 04:21:45,613 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 04:21:45,615 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 04:21:45,866 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 04:21:45,867 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 04:21:46,031 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 04:21:46,032 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 04:21:46,032 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:21:46 BoogieIcfgContainer [2025-02-06 04:21:46,032 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 04:21:46,034 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 04:21:46,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 04:21:46,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 04:21:46,038 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 04:21:44" (1/3) ... [2025-02-06 04:21:46,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f97ea93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:21:46, skipping insertion in model container [2025-02-06 04:21:46,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 04:21:45" (2/3) ... [2025-02-06 04:21:46,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f97ea93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 04:21:46, skipping insertion in model container [2025-02-06 04:21:46,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 04:21:46" (3/3) ... [2025-02-06 04:21:46,041 INFO L128 eAbstractionObserver]: Analyzing ICFG mix040_tso.oepc.i [2025-02-06 04:21:46,051 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 04:21:46,054 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG mix040_tso.oepc.i that has 5 procedures, 50 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-06 04:21:46,054 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 04:21:46,103 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-06 04:21:46,132 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 116 flow [2025-02-06 04:21:46,163 INFO L124 PetriNetUnfolderBase]: 1/46 cut-off events. [2025-02-06 04:21:46,165 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:21:46,171 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 6. Compared 101 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 04:21:46,171 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 50 transitions, 116 flow [2025-02-06 04:21:46,173 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 58 places, 46 transitions, 104 flow [2025-02-06 04:21:46,182 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 04:21:46,218 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;@1c0ec1fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 04:21:46,218 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2025-02-06 04:21:46,223 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 04:21:46,223 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2025-02-06 04:21:46,223 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 04:21:46,224 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:21:46,224 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:21:46,224 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:21:46,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:21:46,228 INFO L85 PathProgramCache]: Analyzing trace with hash 355556835, now seen corresponding path program 1 times [2025-02-06 04:21:46,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:21:46,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016669896] [2025-02-06 04:21:46,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:21:46,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:21:46,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-02-06 04:21:46,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-02-06 04:21:46,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:21:46,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:21:46,549 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 04:21:46,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:21:46,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016669896] [2025-02-06 04:21:46,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016669896] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:21:46,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:21:46,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 04:21:46,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911360189] [2025-02-06 04:21:46,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:21:46,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 04:21:46,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:21:46,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 04:21:46,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 04:21:46,573 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 50 [2025-02-06 04:21:46,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 04:21:46,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:21:46,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 50 [2025-02-06 04:21:46,575 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:21:50,240 INFO L124 PetriNetUnfolderBase]: 46139/61044 cut-off events. [2025-02-06 04:21:50,240 INFO L125 PetriNetUnfolderBase]: For 244/244 co-relation queries the response was YES. [2025-02-06 04:21:50,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122048 conditions, 61044 events. 46139/61044 cut-off events. For 244/244 co-relation queries the response was YES. Maximal size of possible extension queue 1734. Compared 360921 event pairs, 5819 based on Foata normal form. 1692/62486 useless extension candidates. Maximal degree in co-relation 122036. Up to 52201 conditions per place. [2025-02-06 04:21:50,539 INFO L140 encePairwiseOnDemand]: 46/50 looper letters, 59 selfloop transitions, 2 changer transitions 2/70 dead transitions. [2025-02-06 04:21:50,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 70 transitions, 281 flow [2025-02-06 04:21:50,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 04:21:50,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 04:21:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2025-02-06 04:21:50,548 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.66 [2025-02-06 04:21:50,549 INFO L175 Difference]: Start difference. First operand has 58 places, 46 transitions, 104 flow. Second operand 3 states and 99 transitions. [2025-02-06 04:21:50,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 70 transitions, 281 flow [2025-02-06 04:21:50,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 70 transitions, 276 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-06 04:21:50,557 INFO L231 Difference]: Finished difference. Result has 55 places, 43 transitions, 98 flow [2025-02-06 04:21:50,561 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 04:21:50,565 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, -3 predicate places. [2025-02-06 04:21:50,566 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 43 transitions, 98 flow [2025-02-06 04:21:50,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 04:21:50,567 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:21:50,568 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:21:50,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 04:21:50,568 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:21:50,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:21:50,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1040070339, now seen corresponding path program 1 times [2025-02-06 04:21:50,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:21:50,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688482262] [2025-02-06 04:21:50,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:21:50,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:21:50,588 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-06 04:21:50,618 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-06 04:21:50,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:21:50,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:21:50,891 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 04:21:50,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:21:50,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688482262] [2025-02-06 04:21:50,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688482262] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:21:50,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:21:50,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:21:50,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499310174] [2025-02-06 04:21:50,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:21:50,892 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:21:50,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:21:50,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:21:50,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:21:50,897 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:21:50,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 43 transitions, 98 flow. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:21:50,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:21:50,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:21:50,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:21:54,991 INFO L124 PetriNetUnfolderBase]: 59315/79095 cut-off events. [2025-02-06 04:21:54,991 INFO L125 PetriNetUnfolderBase]: For 3096/3096 co-relation queries the response was YES. [2025-02-06 04:21:55,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 160689 conditions, 79095 events. 59315/79095 cut-off events. For 3096/3096 co-relation queries the response was YES. Maximal size of possible extension queue 2125. Compared 469065 event pairs, 13415 based on Foata normal form. 0/77958 useless extension candidates. Maximal degree in co-relation 160679. Up to 37153 conditions per place. [2025-02-06 04:21:55,347 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 54 selfloop transitions, 2 changer transitions 99/160 dead transitions. [2025-02-06 04:21:55,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 160 transitions, 654 flow [2025-02-06 04:21:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:21:55,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:21:55,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 229 transitions. [2025-02-06 04:21:55,349 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5725 [2025-02-06 04:21:55,349 INFO L175 Difference]: Start difference. First operand has 55 places, 43 transitions, 98 flow. Second operand 8 states and 229 transitions. [2025-02-06 04:21:55,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 160 transitions, 654 flow [2025-02-06 04:21:55,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 160 transitions, 638 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-06 04:21:55,359 INFO L231 Difference]: Finished difference. Result has 64 places, 42 transitions, 108 flow [2025-02-06 04:21:55,359 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 04:21:55,359 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 6 predicate places. [2025-02-06 04:21:55,359 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 42 transitions, 108 flow [2025-02-06 04:21:55,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:21:55,360 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:21:55,360 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:21:55,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 04:21:55,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:21:55,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:21:55,361 INFO L85 PathProgramCache]: Analyzing trace with hash -468091247, now seen corresponding path program 1 times [2025-02-06 04:21:55,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:21:55,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051837390] [2025-02-06 04:21:55,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:21:55,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:21:55,369 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-06 04:21:55,381 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-06 04:21:55,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:21:55,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:21:55,564 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 04:21:55,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:21:55,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051837390] [2025-02-06 04:21:55,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051837390] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:21:55,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:21:55,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 04:21:55,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834418570] [2025-02-06 04:21:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:21:55,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 04:21:55,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:21:55,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 04:21:55,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 04:21:55,570 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:21:55,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 42 transitions, 108 flow. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:21:55,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:21:55,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:21:55,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:21:59,208 INFO L124 PetriNetUnfolderBase]: 44789/60195 cut-off events. [2025-02-06 04:21:59,208 INFO L125 PetriNetUnfolderBase]: For 10398/10398 co-relation queries the response was YES. [2025-02-06 04:21:59,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129368 conditions, 60195 events. 44789/60195 cut-off events. For 10398/10398 co-relation queries the response was YES. Maximal size of possible extension queue 1566. Compared 363882 event pairs, 9911 based on Foata normal form. 1080/61266 useless extension candidates. Maximal degree in co-relation 129353. Up to 49385 conditions per place. [2025-02-06 04:21:59,575 INFO L140 encePairwiseOnDemand]: 44/50 looper letters, 59 selfloop transitions, 3 changer transitions 65/132 dead transitions. [2025-02-06 04:21:59,575 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 132 transitions, 561 flow [2025-02-06 04:21:59,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 04:21:59,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-06 04:21:59,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-06 04:21:59,580 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5485714285714286 [2025-02-06 04:21:59,580 INFO L175 Difference]: Start difference. First operand has 64 places, 42 transitions, 108 flow. Second operand 7 states and 192 transitions. [2025-02-06 04:21:59,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 132 transitions, 561 flow [2025-02-06 04:22:00,608 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 132 transitions, 539 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-06 04:22:00,609 INFO L231 Difference]: Finished difference. Result has 63 places, 44 transitions, 131 flow [2025-02-06 04:22:00,609 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=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=131, PETRI_PLACES=63, PETRI_TRANSITIONS=44} [2025-02-06 04:22:00,610 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 5 predicate places. [2025-02-06 04:22:00,610 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 44 transitions, 131 flow [2025-02-06 04:22:00,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 04:22:00,611 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:22:00,611 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 04:22:00,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 04:22:00,611 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:22:00,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:22:00,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1725464462, now seen corresponding path program 1 times [2025-02-06 04:22:00,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:22:00,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250178481] [2025-02-06 04:22:00,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:22:00,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:22:00,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-06 04:22:00,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-06 04:22:00,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:22:00,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:22:01,229 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 04:22:01,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:22:01,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250178481] [2025-02-06 04:22:01,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250178481] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:22:01,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:22:01,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:22:01,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813896728] [2025-02-06 04:22:01,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:22:01,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:22:01,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:22:01,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:22:01,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:22:01,233 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:22:01,233 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 44 transitions, 131 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 04:22:01,233 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:22:01,233 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:22:01,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:22:05,326 INFO L124 PetriNetUnfolderBase]: 44556/59849 cut-off events. [2025-02-06 04:22:05,326 INFO L125 PetriNetUnfolderBase]: For 30100/30100 co-relation queries the response was YES. [2025-02-06 04:22:05,536 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140696 conditions, 59849 events. 44556/59849 cut-off events. For 30100/30100 co-relation queries the response was YES. Maximal size of possible extension queue 1516. Compared 349990 event pairs, 13703 based on Foata normal form. 1044/60872 useless extension candidates. Maximal degree in co-relation 140680. Up to 48474 conditions per place. [2025-02-06 04:22:05,690 INFO L140 encePairwiseOnDemand]: 39/50 looper letters, 93 selfloop transitions, 12 changer transitions 89/199 dead transitions. [2025-02-06 04:22:05,690 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 199 transitions, 962 flow [2025-02-06 04:22:05,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-02-06 04:22:05,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2025-02-06 04:22:05,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 290 transitions. [2025-02-06 04:22:05,691 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5272727272727272 [2025-02-06 04:22:05,691 INFO L175 Difference]: Start difference. First operand has 63 places, 44 transitions, 131 flow. Second operand 11 states and 290 transitions. [2025-02-06 04:22:05,691 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 199 transitions, 962 flow [2025-02-06 04:22:06,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 199 transitions, 945 flow, removed 5 selfloop flow, removed 3 redundant places. [2025-02-06 04:22:06,018 INFO L231 Difference]: Finished difference. Result has 75 places, 55 transitions, 231 flow [2025-02-06 04:22:06,018 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=231, PETRI_PLACES=75, PETRI_TRANSITIONS=55} [2025-02-06 04:22:06,019 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 17 predicate places. [2025-02-06 04:22:06,019 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 55 transitions, 231 flow [2025-02-06 04:22:06,019 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 04:22:06,019 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:22:06,019 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 04:22:06,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 04:22:06,019 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:22:06,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:22:06,020 INFO L85 PathProgramCache]: Analyzing trace with hash 270391589, now seen corresponding path program 1 times [2025-02-06 04:22:06,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:22:06,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497567562] [2025-02-06 04:22:06,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:22:06,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:22:06,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-06 04:22:06,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-06 04:22:06,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:22:06,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:22:06,431 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 04:22:06,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:22:06,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497567562] [2025-02-06 04:22:06,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497567562] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:22:06,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:22:06,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:22:06,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408719817] [2025-02-06 04:22:06,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:22:06,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:22:06,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:22:06,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:22:06,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:22:06,435 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:22:06,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 55 transitions, 231 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 04:22:06,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:22:06,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:22:06,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:22:10,755 INFO L124 PetriNetUnfolderBase]: 42442/57044 cut-off events. [2025-02-06 04:22:10,755 INFO L125 PetriNetUnfolderBase]: For 85578/85578 co-relation queries the response was YES. [2025-02-06 04:22:11,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168797 conditions, 57044 events. 42442/57044 cut-off events. For 85578/85578 co-relation queries the response was YES. Maximal size of possible extension queue 1380. Compared 332411 event pairs, 9737 based on Foata normal form. 720/57737 useless extension candidates. Maximal degree in co-relation 168773. Up to 43885 conditions per place. [2025-02-06 04:22:11,199 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 86 selfloop transitions, 12 changer transitions 80/183 dead transitions. [2025-02-06 04:22:11,200 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 183 transitions, 1140 flow [2025-02-06 04:22:11,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-06 04:22:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-02-06 04:22:11,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 258 transitions. [2025-02-06 04:22:11,203 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.516 [2025-02-06 04:22:11,203 INFO L175 Difference]: Start difference. First operand has 75 places, 55 transitions, 231 flow. Second operand 10 states and 258 transitions. [2025-02-06 04:22:11,203 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 183 transitions, 1140 flow [2025-02-06 04:22:11,737 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 183 transitions, 1112 flow, removed 14 selfloop flow, removed 4 redundant places. [2025-02-06 04:22:11,738 INFO L231 Difference]: Finished difference. Result has 81 places, 58 transitions, 303 flow [2025-02-06 04:22:11,739 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=303, PETRI_PLACES=81, PETRI_TRANSITIONS=58} [2025-02-06 04:22:11,739 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 23 predicate places. [2025-02-06 04:22:11,739 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 58 transitions, 303 flow [2025-02-06 04:22:11,739 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 04:22:11,739 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:22:11,740 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 04:22:11,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 04:22:11,740 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:22:11,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:22:11,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1498565118, now seen corresponding path program 1 times [2025-02-06 04:22:11,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:22:11,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189198633] [2025-02-06 04:22:11,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:22:11,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:22:11,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:22:11,770 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:22:11,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:22:11,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:22:12,184 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 04:22:12,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:22:12,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189198633] [2025-02-06 04:22:12,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189198633] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:22:12,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:22:12,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 04:22:12,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129265657] [2025-02-06 04:22:12,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:22:12,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 04:22:12,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:22:12,186 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 04:22:12,186 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-06 04:22:12,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:22:12,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 58 transitions, 303 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 04:22:12,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:22:12,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:22:12,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 04:22:16,533 INFO L124 PetriNetUnfolderBase]: 44376/59553 cut-off events. [2025-02-06 04:22:16,533 INFO L125 PetriNetUnfolderBase]: For 165767/165767 co-relation queries the response was YES. [2025-02-06 04:22:17,029 INFO L83 FinitePrefix]: Finished finitePrefix Result has 194837 conditions, 59553 events. 44376/59553 cut-off events. For 165767/165767 co-relation queries the response was YES. Maximal size of possible extension queue 1453. Compared 345454 event pairs, 12395 based on Foata normal form. 910/60442 useless extension candidates. Maximal degree in co-relation 194808. Up to 46204 conditions per place. [2025-02-06 04:22:17,181 INFO L140 encePairwiseOnDemand]: 42/50 looper letters, 92 selfloop transitions, 8 changer transitions 65/170 dead transitions. [2025-02-06 04:22:17,181 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 170 transitions, 1137 flow [2025-02-06 04:22:17,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 04:22:17,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-06 04:22:17,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 221 transitions. [2025-02-06 04:22:17,182 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5525 [2025-02-06 04:22:17,182 INFO L175 Difference]: Start difference. First operand has 81 places, 58 transitions, 303 flow. Second operand 8 states and 221 transitions. [2025-02-06 04:22:17,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 170 transitions, 1137 flow [2025-02-06 04:22:17,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 170 transitions, 1067 flow, removed 32 selfloop flow, removed 7 redundant places. [2025-02-06 04:22:17,906 INFO L231 Difference]: Finished difference. Result has 80 places, 61 transitions, 344 flow [2025-02-06 04:22:17,906 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=50, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=344, PETRI_PLACES=80, PETRI_TRANSITIONS=61} [2025-02-06 04:22:17,907 INFO L279 CegarLoopForPetriNet]: 58 programPoint places, 22 predicate places. [2025-02-06 04:22:17,907 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 61 transitions, 344 flow [2025-02-06 04:22:17,907 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 04:22:17,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 04:22:17,907 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 04:22:17,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 04:22:17,907 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2025-02-06 04:22:17,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 04:22:17,907 INFO L85 PathProgramCache]: Analyzing trace with hash 175891773, now seen corresponding path program 1 times [2025-02-06 04:22:17,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 04:22:17,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393304955] [2025-02-06 04:22:17,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 04:22:17,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 04:22:17,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 04:22:17,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 04:22:17,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 04:22:17,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 04:22:18,447 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 04:22:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 04:22:18,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393304955] [2025-02-06 04:22:18,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393304955] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 04:22:18,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 04:22:18,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 04:22:18,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818367062] [2025-02-06 04:22:18,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 04:22:18,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 04:22:18,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 04:22:18,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 04:22:18,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-02-06 04:22:18,452 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 50 [2025-02-06 04:22:18,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 61 transitions, 344 flow. Second operand has 8 states, 8 states have (on average 11.625) internal successors, (93), 8 states have internal predecessors, (93), 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 04:22:18,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 04:22:18,452 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 50 [2025-02-06 04:22:18,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand