./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 01:06:27,467 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 01:06:27,541 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 01:06:27,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 01:06:27,546 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 01:06:27,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 01:06:27,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 01:06:27,580 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 01:06:27,581 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 01:06:27,581 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 01:06:27,582 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 01:06:27,582 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 01:06:27,582 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 01:06:27,583 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 01:06:27,583 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 01:06:27,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 01:06:27,584 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 01:06:27,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 01:06:27,585 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 01:06:27,585 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 01:06:27,585 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 01:06:27,585 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 01:06:27,586 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 01:06:27,586 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 01:06:27,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:06:27,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 01:06:27,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 01:06:27,587 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 -> 33fa46fe030c661ecf8ddae0fe7d2b7598ab4fcf90a09fe31211d00189cd239f [2025-02-08 01:06:27,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 01:06:27,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 01:06:27,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 01:06:27,904 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 01:06:27,905 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 01:06:27,906 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 01:06:29,316 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb3929ea9/99b4ab2d75b64ec8aa1302b56eef5740/FLAG182cf903d [2025-02-08 01:06:29,757 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 01:06:29,758 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 01:06:29,777 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb3929ea9/99b4ab2d75b64ec8aa1302b56eef5740/FLAG182cf903d [2025-02-08 01:06:29,801 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bb3929ea9/99b4ab2d75b64ec8aa1302b56eef5740 [2025-02-08 01:06:29,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 01:06:29,804 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 01:06:29,806 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 01:06:29,806 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 01:06:29,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 01:06:29,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:06:29" (1/1) ... [2025-02-08 01:06:29,814 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e292863 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:29, skipping insertion in model container [2025-02-08 01:06:29,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 01:06:29" (1/1) ... [2025-02-08 01:06:29,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 01:06:29,994 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-02-08 01:06:30,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:06:30,131 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 01:06:30,143 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/thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2025-02-08 01:06:30,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 01:06:30,223 INFO L204 MainTranslator]: Completed translation [2025-02-08 01:06:30,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30 WrapperNode [2025-02-08 01:06:30,224 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 01:06:30,225 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 01:06:30,225 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 01:06:30,225 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 01:06:30,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,267 INFO L138 Inliner]: procedures = 176, calls = 50, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2025-02-08 01:06:30,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 01:06:30,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 01:06:30,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 01:06:30,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 01:06:30,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,292 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]. [2025-02-08 01:06:30,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,298 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,304 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,306 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,310 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 01:06:30,314 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 01:06:30,314 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 01:06:30,314 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 01:06:30,315 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (1/1) ... [2025-02-08 01:06:30,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 01:06:30,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 01:06:30,356 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) [2025-02-08 01:06:30,365 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 [2025-02-08 01:06:30,387 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-02-08 01:06:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 01:06:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-02-08 01:06:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-02-08 01:06:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-02-08 01:06:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-02-08 01:06:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2025-02-08 01:06:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2025-02-08 01:06:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2025-02-08 01:06:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2025-02-08 01:06:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 01:06:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-02-08 01:06:30,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 01:06:30,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 01:06:30,390 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 01:06:30,511 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 01:06:30,513 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 01:06:30,777 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 01:06:30,778 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 01:06:30,906 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 01:06:30,906 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 01:06:30,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:30 BoogieIcfgContainer [2025-02-08 01:06:30,907 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 01:06:30,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 01:06:30,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 01:06:30,915 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 01:06:30,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 01:06:29" (1/3) ... [2025-02-08 01:06:30,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0ccca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:06:30, skipping insertion in model container [2025-02-08 01:06:30,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 01:06:30" (2/3) ... [2025-02-08 01:06:30,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c0ccca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 01:06:30, skipping insertion in model container [2025-02-08 01:06:30,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:30" (3/3) ... [2025-02-08 01:06:30,917 INFO L128 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2025-02-08 01:06:30,934 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 01:06:30,935 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG thin002_pso.oepc_pso.opt_tso.oepc_tso.opt.i that has 5 procedures, 47 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-08 01:06:30,936 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 01:06:30,999 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 01:06:31,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 59 places, 47 transitions, 110 flow [2025-02-08 01:06:31,088 INFO L124 PetriNetUnfolderBase]: 1/43 cut-off events. [2025-02-08 01:06:31,090 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:06:31,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56 conditions, 43 events. 1/43 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 87 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2025-02-08 01:06:31,096 INFO L82 GeneralOperation]: Start removeDead. Operand has 59 places, 47 transitions, 110 flow [2025-02-08 01:06:31,099 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 40 transitions, 92 flow [2025-02-08 01:06:31,107 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 01:06:31,122 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;@7ae8b596, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 01:06:31,125 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-08 01:06:31,146 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 01:06:31,146 INFO L124 PetriNetUnfolderBase]: 0/39 cut-off events. [2025-02-08 01:06:31,146 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 01:06:31,146 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:31,147 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:06:31,147 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:06:31,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:31,153 INFO L85 PathProgramCache]: Analyzing trace with hash -843437143, now seen corresponding path program 1 times [2025-02-08 01:06:31,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:31,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142025521] [2025-02-08 01:06:31,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:31,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:31,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-02-08 01:06:31,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-02-08 01:06:31,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:31,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:31,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:31,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:31,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142025521] [2025-02-08 01:06:31,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142025521] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:31,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:31,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-08 01:06:31,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84256618] [2025-02-08 01:06:31,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:31,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-08 01:06:31,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:31,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-08 01:06:31,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-08 01:06:31,968 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:06:31,971 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 40 transitions, 92 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) [2025-02-08 01:06:31,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:31,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:06:31,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:36,601 INFO L124 PetriNetUnfolderBase]: 41808/56581 cut-off events. [2025-02-08 01:06:36,601 INFO L125 PetriNetUnfolderBase]: For 255/255 co-relation queries the response was YES. [2025-02-08 01:06:36,794 INFO L83 FinitePrefix]: Finished finitePrefix Result has 112387 conditions, 56581 events. 41808/56581 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 1789. Compared 340829 event pairs, 32183 based on Foata normal form. 1296/57875 useless extension candidates. Maximal degree in co-relation 112375. Up to 45334 conditions per place. [2025-02-08 01:06:37,027 INFO L140 encePairwiseOnDemand]: 39/47 looper letters, 44 selfloop transitions, 5 changer transitions 51/105 dead transitions. [2025-02-08 01:06:37,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 105 transitions, 431 flow [2025-02-08 01:06:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:06:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:06:37,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 165 transitions. [2025-02-08 01:06:37,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5015197568389058 [2025-02-08 01:06:37,041 INFO L175 Difference]: Start difference. First operand has 53 places, 40 transitions, 92 flow. Second operand 7 states and 165 transitions. [2025-02-08 01:06:37,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 105 transitions, 431 flow [2025-02-08 01:06:37,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 105 transitions, 424 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 01:06:37,054 INFO L231 Difference]: Finished difference. Result has 60 places, 44 transitions, 145 flow [2025-02-08 01:06:37,056 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=145, PETRI_PLACES=60, PETRI_TRANSITIONS=44} [2025-02-08 01:06:37,062 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2025-02-08 01:06:37,062 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 44 transitions, 145 flow [2025-02-08 01:06:37,063 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) [2025-02-08 01:06:37,063 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:37,064 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:06:37,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 01:06:37,064 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:06:37,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:37,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1636666538, now seen corresponding path program 1 times [2025-02-08 01:06:37,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:37,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906829386] [2025-02-08 01:06:37,065 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:37,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:37,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 01:06:37,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 01:06:37,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:37,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:37,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:37,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:37,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906829386] [2025-02-08 01:06:37,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906829386] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:37,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:37,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:06:37,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496215144] [2025-02-08 01:06:37,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:37,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:06:37,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:37,356 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:06:37,356 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:06:37,360 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:06:37,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 44 transitions, 145 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:37,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:37,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:06:37,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:40,555 INFO L124 PetriNetUnfolderBase]: 39726/53670 cut-off events. [2025-02-08 01:06:40,555 INFO L125 PetriNetUnfolderBase]: For 44884/44884 co-relation queries the response was YES. [2025-02-08 01:06:40,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138519 conditions, 53670 events. 39726/53670 cut-off events. For 44884/44884 co-relation queries the response was YES. Maximal size of possible extension queue 1661. Compared 316776 event pairs, 5997 based on Foata normal form. 1290/54935 useless extension candidates. Maximal degree in co-relation 138504. Up to 37153 conditions per place. [2025-02-08 01:06:40,984 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 55 selfloop transitions, 3 changer transitions 73/136 dead transitions. [2025-02-08 01:06:40,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 136 transitions, 703 flow [2025-02-08 01:06:40,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:06:40,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:06:40,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 192 transitions. [2025-02-08 01:06:40,987 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5835866261398176 [2025-02-08 01:06:40,989 INFO L175 Difference]: Start difference. First operand has 60 places, 44 transitions, 145 flow. Second operand 7 states and 192 transitions. [2025-02-08 01:06:40,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 136 transitions, 703 flow [2025-02-08 01:06:41,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 136 transitions, 690 flow, removed 4 selfloop flow, removed 3 redundant places. [2025-02-08 01:06:41,979 INFO L231 Difference]: Finished difference. Result has 64 places, 44 transitions, 155 flow [2025-02-08 01:06:41,979 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=155, PETRI_PLACES=64, PETRI_TRANSITIONS=44} [2025-02-08 01:06:41,980 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 11 predicate places. [2025-02-08 01:06:41,980 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 44 transitions, 155 flow [2025-02-08 01:06:41,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:41,980 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:41,981 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:06:41,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 01:06:41,981 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:06:41,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:41,982 INFO L85 PathProgramCache]: Analyzing trace with hash -2126352662, now seen corresponding path program 1 times [2025-02-08 01:06:41,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:41,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030861856] [2025-02-08 01:06:41,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:41,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:41,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-08 01:06:42,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-08 01:06:42,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:42,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:42,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:42,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030861856] [2025-02-08 01:06:42,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030861856] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:42,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:42,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:06:42,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822797071] [2025-02-08 01:06:42,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:42,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:06:42,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:42,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:06:42,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:06:42,255 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:06:42,255 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 44 transitions, 155 flow. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:42,255 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:42,256 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:06:42,256 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:46,835 INFO L124 PetriNetUnfolderBase]: 61943/82929 cut-off events. [2025-02-08 01:06:46,836 INFO L125 PetriNetUnfolderBase]: For 83685/83685 co-relation queries the response was YES. [2025-02-08 01:06:47,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 217307 conditions, 82929 events. 61943/82929 cut-off events. For 83685/83685 co-relation queries the response was YES. Maximal size of possible extension queue 2298. Compared 491474 event pairs, 11379 based on Foata normal form. 2155/85082 useless extension candidates. Maximal degree in co-relation 217288. Up to 30481 conditions per place. [2025-02-08 01:06:47,432 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 98 selfloop transitions, 12 changer transitions 138/253 dead transitions. [2025-02-08 01:06:47,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 253 transitions, 1296 flow [2025-02-08 01:06:47,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-08 01:06:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2025-02-08 01:06:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 366 transitions. [2025-02-08 01:06:47,435 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5990180032733224 [2025-02-08 01:06:47,435 INFO L175 Difference]: Start difference. First operand has 64 places, 44 transitions, 155 flow. Second operand 13 states and 366 transitions. [2025-02-08 01:06:47,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 253 transitions, 1296 flow [2025-02-08 01:06:50,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 253 transitions, 1256 flow, removed 16 selfloop flow, removed 6 redundant places. [2025-02-08 01:06:50,404 INFO L231 Difference]: Finished difference. Result has 77 places, 51 transitions, 288 flow [2025-02-08 01:06:50,405 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=141, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=288, PETRI_PLACES=77, PETRI_TRANSITIONS=51} [2025-02-08 01:06:50,406 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 24 predicate places. [2025-02-08 01:06:50,406 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 51 transitions, 288 flow [2025-02-08 01:06:50,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:50,406 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:50,406 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] [2025-02-08 01:06:50,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 01:06:50,406 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:06:50,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:50,407 INFO L85 PathProgramCache]: Analyzing trace with hash -188451957, now seen corresponding path program 1 times [2025-02-08 01:06:50,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:50,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360434670] [2025-02-08 01:06:50,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:50,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:50,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 01:06:50,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 01:06:50,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:50,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:50,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:50,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360434670] [2025-02-08 01:06:50,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360434670] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:50,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:50,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:06:50,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590257156] [2025-02-08 01:06:50,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:50,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:06:50,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:50,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:06:50,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:06:50,601 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:06:50,602 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 51 transitions, 288 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:50,602 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:50,602 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:06:50,602 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:06:54,651 INFO L124 PetriNetUnfolderBase]: 53020/71121 cut-off events. [2025-02-08 01:06:54,652 INFO L125 PetriNetUnfolderBase]: For 249554/249554 co-relation queries the response was YES. [2025-02-08 01:06:55,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 228266 conditions, 71121 events. 53020/71121 cut-off events. For 249554/249554 co-relation queries the response was YES. Maximal size of possible extension queue 1935. Compared 413105 event pairs, 13218 based on Foata normal form. 1050/72152 useless extension candidates. Maximal degree in co-relation 228240. Up to 55236 conditions per place. [2025-02-08 01:06:55,326 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 65 selfloop transitions, 4 changer transitions 69/143 dead transitions. [2025-02-08 01:06:55,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 143 transitions, 1019 flow [2025-02-08 01:06:55,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:06:55,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:06:55,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2025-02-08 01:06:55,328 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5775075987841946 [2025-02-08 01:06:55,328 INFO L175 Difference]: Start difference. First operand has 77 places, 51 transitions, 288 flow. Second operand 7 states and 190 transitions. [2025-02-08 01:06:55,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 143 transitions, 1019 flow [2025-02-08 01:06:58,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 143 transitions, 841 flow, removed 86 selfloop flow, removed 9 redundant places. [2025-02-08 01:06:58,086 INFO L231 Difference]: Finished difference. Result has 71 places, 51 transitions, 246 flow [2025-02-08 01:06:58,086 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=246, PETRI_PLACES=71, PETRI_TRANSITIONS=51} [2025-02-08 01:06:58,087 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 18 predicate places. [2025-02-08 01:06:58,087 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 51 transitions, 246 flow [2025-02-08 01:06:58,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:58,087 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:06:58,087 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] [2025-02-08 01:06:58,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 01:06:58,087 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:06:58,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:06:58,088 INFO L85 PathProgramCache]: Analyzing trace with hash -61105941, now seen corresponding path program 1 times [2025-02-08 01:06:58,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:06:58,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719118627] [2025-02-08 01:06:58,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:06:58,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:06:58,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-08 01:06:58,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-08 01:06:58,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:06:58,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:06:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:06:58,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:06:58,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719118627] [2025-02-08 01:06:58,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719118627] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:06:58,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:06:58,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:06:58,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882808477] [2025-02-08 01:06:58,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:06:58,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:06:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:06:58,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:06:58,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:06:58,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:06:58,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 51 transitions, 246 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:06:58,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:06:58,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:06:58,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:07:01,658 INFO L124 PetriNetUnfolderBase]: 50570/67752 cut-off events. [2025-02-08 01:07:01,658 INFO L125 PetriNetUnfolderBase]: For 104919/104919 co-relation queries the response was YES. [2025-02-08 01:07:01,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186972 conditions, 67752 events. 50570/67752 cut-off events. For 104919/104919 co-relation queries the response was YES. Maximal size of possible extension queue 1760. Compared 392411 event pairs, 31725 based on Foata normal form. 900/68647 useless extension candidates. Maximal degree in co-relation 186948. Up to 53431 conditions per place. [2025-02-08 01:07:02,220 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 71 selfloop transitions, 5 changer transitions 65/146 dead transitions. [2025-02-08 01:07:02,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 146 transitions, 878 flow [2025-02-08 01:07:02,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-08 01:07:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2025-02-08 01:07:02,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 190 transitions. [2025-02-08 01:07:02,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5775075987841946 [2025-02-08 01:07:02,223 INFO L175 Difference]: Start difference. First operand has 71 places, 51 transitions, 246 flow. Second operand 7 states and 190 transitions. [2025-02-08 01:07:02,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 146 transitions, 878 flow [2025-02-08 01:07:03,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 146 transitions, 850 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-08 01:07:03,151 INFO L231 Difference]: Finished difference. Result has 72 places, 51 transitions, 255 flow [2025-02-08 01:07:03,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=255, PETRI_PLACES=72, PETRI_TRANSITIONS=51} [2025-02-08 01:07:03,153 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 19 predicate places. [2025-02-08 01:07:03,153 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 51 transitions, 255 flow [2025-02-08 01:07:03,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:07:03,153 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:07:03,153 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] [2025-02-08 01:07:03,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 01:07:03,154 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:07:03,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:07:03,154 INFO L85 PathProgramCache]: Analyzing trace with hash 847134124, now seen corresponding path program 1 times [2025-02-08 01:07:03,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:07:03,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945877341] [2025-02-08 01:07:03,154 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:07:03,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:07:03,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-02-08 01:07:03,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-02-08 01:07:03,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:07:03,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:07:03,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:07:03,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:07:03,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945877341] [2025-02-08 01:07:03,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945877341] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:07:03,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:07:03,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:07:03,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085852411] [2025-02-08 01:07:03,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:07:03,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:07:03,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:07:03,367 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:07:03,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:07:03,371 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:07:03,372 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 51 transitions, 255 flow. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2025-02-08 01:07:03,372 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:07:03,372 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:07:03,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:07:07,197 INFO L124 PetriNetUnfolderBase]: 59605/79524 cut-off events. [2025-02-08 01:07:07,198 INFO L125 PetriNetUnfolderBase]: For 135365/135365 co-relation queries the response was YES. [2025-02-08 01:07:07,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219500 conditions, 79524 events. 59605/79524 cut-off events. For 135365/135365 co-relation queries the response was YES. Maximal size of possible extension queue 2188. Compared 472779 event pairs, 11002 based on Foata normal form. 750/80249 useless extension candidates. Maximal degree in co-relation 219475. Up to 34272 conditions per place. [2025-02-08 01:07:07,724 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 68 selfloop transitions, 3 changer transitions 80/156 dead transitions. [2025-02-08 01:07:07,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 156 transitions, 895 flow [2025-02-08 01:07:07,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:07:07,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:07:07,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 215 transitions. [2025-02-08 01:07:07,726 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5718085106382979 [2025-02-08 01:07:07,726 INFO L175 Difference]: Start difference. First operand has 72 places, 51 transitions, 255 flow. Second operand 8 states and 215 transitions. [2025-02-08 01:07:07,727 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 156 transitions, 895 flow [2025-02-08 01:07:08,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 156 transitions, 865 flow, removed 8 selfloop flow, removed 6 redundant places. [2025-02-08 01:07:08,377 INFO L231 Difference]: Finished difference. Result has 75 places, 43 transitions, 200 flow [2025-02-08 01:07:08,377 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=200, PETRI_PLACES=75, PETRI_TRANSITIONS=43} [2025-02-08 01:07:08,378 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 22 predicate places. [2025-02-08 01:07:08,378 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 43 transitions, 200 flow [2025-02-08 01:07:08,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 7 states have internal predecessors, (81), 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) [2025-02-08 01:07:08,378 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:07:08,378 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] [2025-02-08 01:07:08,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-08 01:07:08,379 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:07:08,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:07:08,379 INFO L85 PathProgramCache]: Analyzing trace with hash 625610114, now seen corresponding path program 1 times [2025-02-08 01:07:08,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:07:08,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496821864] [2025-02-08 01:07:08,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:07:08,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:07:08,385 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-02-08 01:07:08,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-02-08 01:07:08,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:07:08,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:07:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:07:08,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:07:08,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496821864] [2025-02-08 01:07:08,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496821864] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:07:08,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:07:08,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-08 01:07:08,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412960705] [2025-02-08 01:07:08,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:07:08,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-08 01:07:08,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:07:08,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-08 01:07:08,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-08 01:07:08,522 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:07:08,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 43 transitions, 200 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) [2025-02-08 01:07:08,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:07:08,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:07:08,522 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:07:11,324 INFO L124 PetriNetUnfolderBase]: 32217/43489 cut-off events. [2025-02-08 01:07:11,324 INFO L125 PetriNetUnfolderBase]: For 94509/94509 co-relation queries the response was YES. [2025-02-08 01:07:11,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124151 conditions, 43489 events. 32217/43489 cut-off events. For 94509/94509 co-relation queries the response was YES. Maximal size of possible extension queue 1172. Compared 246419 event pairs, 7769 based on Foata normal form. 600/44076 useless extension candidates. Maximal degree in co-relation 124124. Up to 17731 conditions per place. [2025-02-08 01:07:11,593 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 61 selfloop transitions, 3 changer transitions 78/147 dead transitions. [2025-02-08 01:07:11,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 147 transitions, 829 flow [2025-02-08 01:07:11,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:07:11,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:07:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 213 transitions. [2025-02-08 01:07:11,594 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5664893617021277 [2025-02-08 01:07:11,594 INFO L175 Difference]: Start difference. First operand has 75 places, 43 transitions, 200 flow. Second operand 8 states and 213 transitions. [2025-02-08 01:07:11,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 147 transitions, 829 flow [2025-02-08 01:07:12,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 147 transitions, 707 flow, removed 40 selfloop flow, removed 14 redundant places. [2025-02-08 01:07:12,500 INFO L231 Difference]: Finished difference. Result has 69 places, 42 transitions, 161 flow [2025-02-08 01:07:12,500 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=161, PETRI_PLACES=69, PETRI_TRANSITIONS=42} [2025-02-08 01:07:12,501 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 16 predicate places. [2025-02-08 01:07:12,501 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 42 transitions, 161 flow [2025-02-08 01:07:12,501 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) [2025-02-08 01:07:12,501 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:07:12,501 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] [2025-02-08 01:07:12,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-08 01:07:12,501 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:07:12,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:07:12,502 INFO L85 PathProgramCache]: Analyzing trace with hash 671688833, now seen corresponding path program 1 times [2025-02-08 01:07:12,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:07:12,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121073886] [2025-02-08 01:07:12,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:07:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:07:12,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 26 statements into 1 equivalence classes. [2025-02-08 01:07:12,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 26 of 26 statements. [2025-02-08 01:07:12,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:07:12,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:07:12,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:07:12,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:07:12,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121073886] [2025-02-08 01:07:12,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121073886] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:07:12,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:07:12,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:07:12,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654056003] [2025-02-08 01:07:12,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:07:12,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:07:12,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:07:12,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:07:12,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:07:12,652 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:07:12,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 42 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2025-02-08 01:07:12,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:07:12,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:07:12,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:07:14,097 INFO L124 PetriNetUnfolderBase]: 21952/29962 cut-off events. [2025-02-08 01:07:14,097 INFO L125 PetriNetUnfolderBase]: For 28363/28363 co-relation queries the response was YES. [2025-02-08 01:07:14,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74531 conditions, 29962 events. 21952/29962 cut-off events. For 28363/28363 co-relation queries the response was YES. Maximal size of possible extension queue 765. Compared 163645 event pairs, 7408 based on Foata normal form. 400/30360 useless extension candidates. Maximal degree in co-relation 74509. Up to 12724 conditions per place. [2025-02-08 01:07:14,268 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 53 selfloop transitions, 3 changer transitions 83/144 dead transitions. [2025-02-08 01:07:14,268 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 144 transitions, 735 flow [2025-02-08 01:07:14,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:07:14,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:07:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 211 transitions. [2025-02-08 01:07:14,270 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5611702127659575 [2025-02-08 01:07:14,270 INFO L175 Difference]: Start difference. First operand has 69 places, 42 transitions, 161 flow. Second operand 8 states and 211 transitions. [2025-02-08 01:07:14,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 144 transitions, 735 flow [2025-02-08 01:07:14,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 144 transitions, 673 flow, removed 22 selfloop flow, removed 8 redundant places. [2025-02-08 01:07:14,480 INFO L231 Difference]: Finished difference. Result has 70 places, 40 transitions, 142 flow [2025-02-08 01:07:14,481 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=142, PETRI_PLACES=70, PETRI_TRANSITIONS=40} [2025-02-08 01:07:14,481 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 17 predicate places. [2025-02-08 01:07:14,481 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 40 transitions, 142 flow [2025-02-08 01:07:14,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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) [2025-02-08 01:07:14,481 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 01:07:14,482 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:07:14,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-08 01:07:14,482 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-02-08 01:07:14,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 01:07:14,482 INFO L85 PathProgramCache]: Analyzing trace with hash -1362488095, now seen corresponding path program 1 times [2025-02-08 01:07:14,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 01:07:14,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442980127] [2025-02-08 01:07:14,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 01:07:14,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 01:07:14,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 27 statements into 1 equivalence classes. [2025-02-08 01:07:14,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 27 of 27 statements. [2025-02-08 01:07:14,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 01:07:14,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 01:07:14,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 01:07:14,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 01:07:14,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442980127] [2025-02-08 01:07:14,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442980127] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 01:07:14,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 01:07:14,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-08 01:07:14,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660786133] [2025-02-08 01:07:14,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 01:07:14,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-08 01:07:14,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 01:07:14,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-08 01:07:14,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-08 01:07:14,589 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 47 [2025-02-08 01:07:14,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 40 transitions, 142 flow. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:07:14,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 01:07:14,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 47 [2025-02-08 01:07:14,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 01:07:15,451 INFO L124 PetriNetUnfolderBase]: 8497/11561 cut-off events. [2025-02-08 01:07:15,451 INFO L125 PetriNetUnfolderBase]: For 9096/9098 co-relation queries the response was YES. [2025-02-08 01:07:15,478 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27555 conditions, 11561 events. 8497/11561 cut-off events. For 9096/9098 co-relation queries the response was YES. Maximal size of possible extension queue 315. Compared 51575 event pairs, 2641 based on Foata normal form. 320/11881 useless extension candidates. Maximal degree in co-relation 27541. Up to 5184 conditions per place. [2025-02-08 01:07:15,485 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 0 selfloop transitions, 0 changer transitions 97/97 dead transitions. [2025-02-08 01:07:15,485 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 97 transitions, 452 flow [2025-02-08 01:07:15,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-08 01:07:15,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2025-02-08 01:07:15,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 167 transitions. [2025-02-08 01:07:15,486 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4441489361702128 [2025-02-08 01:07:15,486 INFO L175 Difference]: Start difference. First operand has 70 places, 40 transitions, 142 flow. Second operand 8 states and 167 transitions. [2025-02-08 01:07:15,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 97 transitions, 452 flow [2025-02-08 01:07:15,541 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 97 transitions, 400 flow, removed 19 selfloop flow, removed 11 redundant places. [2025-02-08 01:07:15,541 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2025-02-08 01:07:15,542 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2025-02-08 01:07:15,542 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2025-02-08 01:07:15,542 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2025-02-08 01:07:15,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 01:07:15,545 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-02-08 01:07:15,545 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 5 remaining) [2025-02-08 01:07:15,545 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-02-08 01:07:15,545 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-02-08 01:07:15,545 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2025-02-08 01:07:15,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-08 01:07:15,545 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 01:07:15,548 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 01:07:15,549 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 01:07:15,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 01:07:15 BasicIcfg [2025-02-08 01:07:15,553 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 01:07:15,553 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 01:07:15,553 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 01:07:15,553 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 01:07:15,554 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 01:06:30" (3/4) ... [2025-02-08 01:07:15,557 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 01:07:15,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P0 [2025-02-08 01:07:15,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P1 [2025-02-08 01:07:15,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P2 [2025-02-08 01:07:15,560 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure P3 [2025-02-08 01:07:15,565 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2025-02-08 01:07:15,565 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-02-08 01:07:15,566 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-08 01:07:15,566 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 01:07:15,628 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 01:07:15,628 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 01:07:15,629 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 01:07:15,629 INFO L158 Benchmark]: Toolchain (without parser) took 45824.97ms. Allocated memory was 142.6MB in the beginning and 14.0GB in the end (delta: 13.9GB). Free memory was 106.5MB in the beginning and 10.9GB in the end (delta: -10.8GB). Peak memory consumption was 3.0GB. Max. memory is 16.1GB. [2025-02-08 01:07:15,629 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 201.3MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:07:15,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 418.79ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 85.7MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:07:15,630 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.49ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 01:07:15,630 INFO L158 Benchmark]: Boogie Preprocessor took 42.42ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 82.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:07:15,630 INFO L158 Benchmark]: IcfgBuilder took 593.28ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 60.1MB in the end (delta: 21.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 01:07:15,630 INFO L158 Benchmark]: TraceAbstraction took 44643.25ms. Allocated memory was 142.6MB in the beginning and 14.0GB in the end (delta: 13.9GB). Free memory was 59.5MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. [2025-02-08 01:07:15,630 INFO L158 Benchmark]: Witness Printer took 75.32ms. Allocated memory is still 14.0GB. Free memory was 11.0GB in the beginning and 10.9GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 01:07:15,633 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 201.3MB. Free memory is still 115.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 418.79ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 85.7MB in the end (delta: 20.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.49ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.42ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 82.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 593.28ms. Allocated memory is still 142.6MB. Free memory was 82.0MB in the beginning and 60.1MB in the end (delta: 21.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 44643.25ms. Allocated memory was 142.6MB in the beginning and 14.0GB in the end (delta: 13.9GB). Free memory was 59.5MB in the beginning and 11.0GB in the end (delta: -10.9GB). Peak memory consumption was 3.5GB. Max. memory is 16.1GB. * Witness Printer took 75.32ms. Allocated memory is still 14.0GB. Free memory was 11.0GB in the beginning and 10.9GB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 79 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 44.5s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 42.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1057 SdHoareTripleChecker+Valid, 2.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1047 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2413 IncrementalHoareTripleChecker+Invalid, 2428 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 9 mSDtfsCounter, 2413 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=3, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 181 ConstructedInterpolants, 0 QuantifiedInterpolants, 861 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 01:07:15,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE