./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:34:46,243 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:34:46,303 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:34:46,307 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:34:46,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:34:46,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:34:46,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:34:46,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:34:46,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:34:46,338 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:34:46,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:34:46,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:34:46,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:34:46,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:34:46,339 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:34:46,340 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:34:46,340 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:34:46,342 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:34:46,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:34:46,342 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:34:46,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:34:46,344 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:34:46,344 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:34:46,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:34:46,344 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:34:46,344 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:34:46,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:34:46,345 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:34:46,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:34:46,345 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:34:46,345 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:34:46,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:34:46,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:34:46,345 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:34:46,346 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:34:46,346 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:34:46,346 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:34:46,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:34:46,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:34:46,346 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:34:46,346 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:34:46,348 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:34:46,348 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a650c00976061981bc34910bafee4d11d94c16289374f008af5a1f8d17e97036 [2024-11-19 01:34:46,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:34:46,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:34:46,541 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:34:46,542 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:34:46,542 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:34:46,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-19 01:34:47,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:34:47,887 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:34:47,887 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-19 01:34:47,901 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d5fe6fa3/541d35259492449695d383c02ad443a9/FLAG725e2f012 [2024-11-19 01:34:48,262 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d5fe6fa3/541d35259492449695d383c02ad443a9 [2024-11-19 01:34:48,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:34:48,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:34:48,267 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:34:48,267 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:34:48,271 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:34:48,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41250d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48, skipping insertion in model container [2024-11-19 01:34:48,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,301 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:34:48,436 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-11-19 01:34:48,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:34:48,620 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:34:48,629 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i[983,996] [2024-11-19 01:34:48,660 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:34:48,699 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:34:48,700 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48 WrapperNode [2024-11-19 01:34:48,700 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:34:48,701 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:34:48,701 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:34:48,701 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:34:48,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,757 INFO L138 Inliner]: procedures = 176, calls = 51, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 144 [2024-11-19 01:34:48,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:34:48,758 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:34:48,758 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:34:48,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:34:48,768 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,768 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,792 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]. [2024-11-19 01:34:48,793 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,798 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,808 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,815 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:34:48,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:34:48,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:34:48,816 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:34:48,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (1/1) ... [2024-11-19 01:34:48,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:34:48,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:34:48,851 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 01:34:48,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 01:34:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 01:34:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:34:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 01:34:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 01:34:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 01:34:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 01:34:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 01:34:48,889 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 01:34:48,889 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-19 01:34:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-19 01:34:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:34:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 01:34:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:34:48,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:34:48,892 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 01:34:48,987 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:34:48,989 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:34:49,211 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:34:49,212 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:34:49,354 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:34:49,355 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 01:34:49,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:34:49 BoogieIcfgContainer [2024-11-19 01:34:49,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:34:49,358 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:34:49,358 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:34:49,361 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:34:49,361 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:34:48" (1/3) ... [2024-11-19 01:34:49,361 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fffab49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:34:49, skipping insertion in model container [2024-11-19 01:34:49,362 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:34:48" (2/3) ... [2024-11-19 01:34:49,362 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fffab49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:34:49, skipping insertion in model container [2024-11-19 01:34:49,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:34:49" (3/3) ... [2024-11-19 01:34:49,364 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.opt_pso.opt_rmo.opt_tso.oepc_tso.opt.i [2024-11-19 01:34:49,376 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:34:49,377 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 01:34:49,377 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:34:49,446 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 01:34:49,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 48 transitions, 112 flow [2024-11-19 01:34:49,518 INFO L124 PetriNetUnfolderBase]: 1/44 cut-off events. [2024-11-19 01:34:49,518 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:34:49,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 44 events. 1/44 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 48. Up to 2 conditions per place. [2024-11-19 01:34:49,521 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 48 transitions, 112 flow [2024-11-19 01:34:49,526 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 44 transitions, 100 flow [2024-11-19 01:34:49,534 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:34:49,540 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;@6d4d0cba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:34:49,540 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 01:34:49,548 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:34:49,548 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-19 01:34:49,549 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:34:49,549 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:34:49,550 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:34:49,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P3Err0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:34:49,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:34:49,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1793883208, now seen corresponding path program 1 times [2024-11-19 01:34:49,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:34:49,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633775055] [2024-11-19 01:34:49,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:34:49,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:34:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:34:49,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:34:49,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:34:49,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633775055] [2024-11-19 01:34:49,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633775055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:34:49,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:34:49,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 01:34:49,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540929089] [2024-11-19 01:34:49,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:34:49,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:34:49,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:34:49,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:34:49,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:34:49,972 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 48 [2024-11-19 01:34:49,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 44 transitions, 100 flow. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:34:49,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:34:49,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 48 [2024-11-19 01:34:49,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:34:50,312 INFO L124 PetriNetUnfolderBase]: 815/1447 cut-off events. [2024-11-19 01:34:50,313 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:34:50,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2679 conditions, 1447 events. 815/1447 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 9993 event pairs, 179 based on Foata normal form. 48/1452 useless extension candidates. Maximal degree in co-relation 2667. Up to 889 conditions per place. [2024-11-19 01:34:50,327 INFO L140 encePairwiseOnDemand]: 44/48 looper letters, 27 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2024-11-19 01:34:50,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 52 transitions, 178 flow [2024-11-19 01:34:50,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:34:50,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:34:50,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-19 01:34:50,338 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7569444444444444 [2024-11-19 01:34:50,339 INFO L175 Difference]: Start difference. First operand has 56 places, 44 transitions, 100 flow. Second operand 3 states and 109 transitions. [2024-11-19 01:34:50,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 52 transitions, 178 flow [2024-11-19 01:34:50,342 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 52 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 01:34:50,346 INFO L231 Difference]: Finished difference. Result has 53 places, 41 transitions, 94 flow [2024-11-19 01:34:50,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=53, PETRI_TRANSITIONS=41} [2024-11-19 01:34:50,352 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, -3 predicate places. [2024-11-19 01:34:50,352 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 41 transitions, 94 flow [2024-11-19 01:34:50,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 01:34:50,352 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:34:50,352 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:34:50,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:34:50,353 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:34:50,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:34:50,354 INFO L85 PathProgramCache]: Analyzing trace with hash -2094359865, now seen corresponding path program 1 times [2024-11-19 01:34:50,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:34:50,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963765027] [2024-11-19 01:34:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:34:50,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:34:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:34:51,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:34:51,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:34:51,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963765027] [2024-11-19 01:34:51,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963765027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:34:51,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:34:51,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:34:51,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318091508] [2024-11-19 01:34:51,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:34:51,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:34:51,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:34:51,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:34:51,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:34:51,105 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-19 01:34:51,106 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 41 transitions, 94 flow. Second operand has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-11-19 01:34:51,106 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:34:51,106 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-19 01:34:51,106 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:34:53,009 INFO L124 PetriNetUnfolderBase]: 12743/19380 cut-off events. [2024-11-19 01:34:53,010 INFO L125 PetriNetUnfolderBase]: For 872/872 co-relation queries the response was YES. [2024-11-19 01:34:53,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37942 conditions, 19380 events. 12743/19380 cut-off events. For 872/872 co-relation queries the response was YES. Maximal size of possible extension queue 1079. Compared 145048 event pairs, 411 based on Foata normal form. 0/18919 useless extension candidates. Maximal degree in co-relation 37932. Up to 6976 conditions per place. [2024-11-19 01:34:53,094 INFO L140 encePairwiseOnDemand]: 34/48 looper letters, 53 selfloop transitions, 12 changer transitions 99/178 dead transitions. [2024-11-19 01:34:53,094 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 178 transitions, 726 flow [2024-11-19 01:34:53,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 01:34:53,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-19 01:34:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 383 transitions. [2024-11-19 01:34:53,098 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6649305555555556 [2024-11-19 01:34:53,098 INFO L175 Difference]: Start difference. First operand has 53 places, 41 transitions, 94 flow. Second operand 12 states and 383 transitions. [2024-11-19 01:34:53,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 178 transitions, 726 flow [2024-11-19 01:34:53,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 178 transitions, 702 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:34:53,104 INFO L231 Difference]: Finished difference. Result has 72 places, 51 transitions, 228 flow [2024-11-19 01:34:53,104 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=228, PETRI_PLACES=72, PETRI_TRANSITIONS=51} [2024-11-19 01:34:53,105 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 16 predicate places. [2024-11-19 01:34:53,105 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 51 transitions, 228 flow [2024-11-19 01:34:53,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 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) [2024-11-19 01:34:53,105 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:34:53,105 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:34:53,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:34:53,106 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:34:53,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:34:53,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1563188216, now seen corresponding path program 1 times [2024-11-19 01:34:53,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:34:53,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158472406] [2024-11-19 01:34:53,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:34:53,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:34:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:34:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:34:53,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:34:53,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158472406] [2024-11-19 01:34:53,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158472406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:34:53,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:34:53,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:34:53,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530483786] [2024-11-19 01:34:53,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:34:53,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:34:53,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:34:53,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:34:53,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:34:53,622 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-19 01:34:53,622 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 51 transitions, 228 flow. Second operand has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-11-19 01:34:53,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:34:53,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-19 01:34:53,623 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:34:55,195 INFO L124 PetriNetUnfolderBase]: 9456/15774 cut-off events. [2024-11-19 01:34:55,195 INFO L125 PetriNetUnfolderBase]: For 29496/29502 co-relation queries the response was YES. [2024-11-19 01:34:55,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50095 conditions, 15774 events. 9456/15774 cut-off events. For 29496/29502 co-relation queries the response was YES. Maximal size of possible extension queue 902. Compared 128395 event pairs, 618 based on Foata normal form. 380/16085 useless extension candidates. Maximal degree in co-relation 50074. Up to 6405 conditions per place. [2024-11-19 01:34:55,314 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 57 selfloop transitions, 15 changer transitions 78/164 dead transitions. [2024-11-19 01:34:55,314 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 164 transitions, 1170 flow [2024-11-19 01:34:55,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:34:55,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:34:55,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 312 transitions. [2024-11-19 01:34:55,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-19 01:34:55,320 INFO L175 Difference]: Start difference. First operand has 72 places, 51 transitions, 228 flow. Second operand 10 states and 312 transitions. [2024-11-19 01:34:55,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 164 transitions, 1170 flow [2024-11-19 01:34:55,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 164 transitions, 1090 flow, removed 40 selfloop flow, removed 4 redundant places. [2024-11-19 01:34:55,508 INFO L231 Difference]: Finished difference. Result has 77 places, 62 transitions, 398 flow [2024-11-19 01:34:55,508 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=398, PETRI_PLACES=77, PETRI_TRANSITIONS=62} [2024-11-19 01:34:55,509 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 21 predicate places. [2024-11-19 01:34:55,509 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 62 transitions, 398 flow [2024-11-19 01:34:55,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 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) [2024-11-19 01:34:55,509 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:34:55,510 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:34:55,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:34:55,510 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:34:55,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:34:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash 88273458, now seen corresponding path program 1 times [2024-11-19 01:34:55,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:34:55,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035681214] [2024-11-19 01:34:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:34:55,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:34:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:34:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:34:55,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:34:55,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035681214] [2024-11-19 01:34:55,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035681214] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:34:55,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:34:55,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:34:55,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551219699] [2024-11-19 01:34:55,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:34:55,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:34:55,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:34:55,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:34:55,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:34:55,908 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 48 [2024-11-19 01:34:55,909 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 62 transitions, 398 flow. Second operand has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-11-19 01:34:55,909 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:34:55,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 48 [2024-11-19 01:34:55,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:34:57,703 INFO L124 PetriNetUnfolderBase]: 11217/18234 cut-off events. [2024-11-19 01:34:57,703 INFO L125 PetriNetUnfolderBase]: For 56757/56757 co-relation queries the response was YES. [2024-11-19 01:34:57,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66284 conditions, 18234 events. 11217/18234 cut-off events. For 56757/56757 co-relation queries the response was YES. Maximal size of possible extension queue 1041. Compared 149156 event pairs, 2140 based on Foata normal form. 350/18310 useless extension candidates. Maximal degree in co-relation 66256. Up to 5814 conditions per place. [2024-11-19 01:34:57,809 INFO L140 encePairwiseOnDemand]: 35/48 looper letters, 61 selfloop transitions, 27 changer transitions 68/170 dead transitions. [2024-11-19 01:34:57,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 170 transitions, 1408 flow [2024-11-19 01:34:57,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:34:57,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:34:57,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 307 transitions. [2024-11-19 01:34:57,812 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6395833333333333 [2024-11-19 01:34:57,812 INFO L175 Difference]: Start difference. First operand has 77 places, 62 transitions, 398 flow. Second operand 10 states and 307 transitions. [2024-11-19 01:34:57,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 170 transitions, 1408 flow [2024-11-19 01:34:57,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 170 transitions, 1362 flow, removed 23 selfloop flow, removed 0 redundant places. [2024-11-19 01:34:57,990 INFO L231 Difference]: Finished difference. Result has 89 places, 73 transitions, 646 flow [2024-11-19 01:34:57,990 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=646, PETRI_PLACES=89, PETRI_TRANSITIONS=73} [2024-11-19 01:34:57,992 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 33 predicate places. [2024-11-19 01:34:57,993 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 73 transitions, 646 flow [2024-11-19 01:34:57,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.666666666666668) internal successors, (124), 6 states have internal predecessors, (124), 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) [2024-11-19 01:34:57,993 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:34:57,993 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:34:57,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:34:57,994 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:34:57,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:34:57,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2101487005, now seen corresponding path program 1 times [2024-11-19 01:34:57,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:34:57,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023616758] [2024-11-19 01:34:57,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:34:57,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:34:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:34:58,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:34:58,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:34:58,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023616758] [2024-11-19 01:34:58,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023616758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:34:58,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:34:58,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:34:58,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548666069] [2024-11-19 01:34:58,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:34:58,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:34:58,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:34:58,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:34:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:34:58,344 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-11-19 01:34:58,344 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 73 transitions, 646 flow. Second operand has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-11-19 01:34:58,344 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:34:58,344 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-11-19 01:34:58,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:00,703 INFO L124 PetriNetUnfolderBase]: 10743/18721 cut-off events. [2024-11-19 01:35:00,704 INFO L125 PetriNetUnfolderBase]: For 96053/97665 co-relation queries the response was YES. [2024-11-19 01:35:00,778 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74572 conditions, 18721 events. 10743/18721 cut-off events. For 96053/97665 co-relation queries the response was YES. Maximal size of possible extension queue 1221. Compared 168009 event pairs, 3158 based on Foata normal form. 622/18334 useless extension candidates. Maximal degree in co-relation 74533. Up to 10870 conditions per place. [2024-11-19 01:35:00,844 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 58 selfloop transitions, 14 changer transitions 20/130 dead transitions. [2024-11-19 01:35:00,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 130 transitions, 1312 flow [2024-11-19 01:35:00,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:35:00,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:35:00,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 214 transitions. [2024-11-19 01:35:00,846 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6369047619047619 [2024-11-19 01:35:00,846 INFO L175 Difference]: Start difference. First operand has 89 places, 73 transitions, 646 flow. Second operand 7 states and 214 transitions. [2024-11-19 01:35:00,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 130 transitions, 1312 flow [2024-11-19 01:35:00,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 130 transitions, 1268 flow, removed 22 selfloop flow, removed 8 redundant places. [2024-11-19 01:35:00,939 INFO L231 Difference]: Finished difference. Result has 85 places, 84 transitions, 784 flow [2024-11-19 01:35:00,939 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=610, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=784, PETRI_PLACES=85, PETRI_TRANSITIONS=84} [2024-11-19 01:35:00,940 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 29 predicate places. [2024-11-19 01:35:00,940 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 84 transitions, 784 flow [2024-11-19 01:35:00,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.333333333333332) internal successors, (146), 6 states have internal predecessors, (146), 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) [2024-11-19 01:35:00,940 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:00,940 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:35:00,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:35:00,941 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:35:00,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:00,941 INFO L85 PathProgramCache]: Analyzing trace with hash 319451581, now seen corresponding path program 1 times [2024-11-19 01:35:00,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:00,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301648546] [2024-11-19 01:35:00,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:00,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:01,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:01,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301648546] [2024-11-19 01:35:01,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301648546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:01,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:01,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:35:01,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115209569] [2024-11-19 01:35:01,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:01,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:35:01,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:01,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:35:01,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:35:01,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-11-19 01:35:01,310 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 84 transitions, 784 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-11-19 01:35:01,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:01,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-11-19 01:35:01,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:03,690 INFO L124 PetriNetUnfolderBase]: 11678/20663 cut-off events. [2024-11-19 01:35:03,690 INFO L125 PetriNetUnfolderBase]: For 117080/118606 co-relation queries the response was YES. [2024-11-19 01:35:03,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86252 conditions, 20663 events. 11678/20663 cut-off events. For 117080/118606 co-relation queries the response was YES. Maximal size of possible extension queue 1396. Compared 192448 event pairs, 2097 based on Foata normal form. 565/20244 useless extension candidates. Maximal degree in co-relation 86215. Up to 11097 conditions per place. [2024-11-19 01:35:03,852 INFO L140 encePairwiseOnDemand]: 41/48 looper letters, 71 selfloop transitions, 30 changer transitions 26/165 dead transitions. [2024-11-19 01:35:03,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 165 transitions, 1842 flow [2024-11-19 01:35:03,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:35:03,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:35:03,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 297 transitions. [2024-11-19 01:35:03,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61875 [2024-11-19 01:35:03,855 INFO L175 Difference]: Start difference. First operand has 85 places, 84 transitions, 784 flow. Second operand 10 states and 297 transitions. [2024-11-19 01:35:03,855 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 165 transitions, 1842 flow [2024-11-19 01:35:04,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 165 transitions, 1767 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-19 01:35:04,014 INFO L231 Difference]: Finished difference. Result has 98 places, 101 transitions, 1083 flow [2024-11-19 01:35:04,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1083, PETRI_PLACES=98, PETRI_TRANSITIONS=101} [2024-11-19 01:35:04,015 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 42 predicate places. [2024-11-19 01:35:04,015 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 101 transitions, 1083 flow [2024-11-19 01:35:04,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-11-19 01:35:04,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:04,016 INFO L204 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] [2024-11-19 01:35:04,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:35:04,016 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:35:04,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:04,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1473979817, now seen corresponding path program 1 times [2024-11-19 01:35:04,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:04,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504711052] [2024-11-19 01:35:04,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:04,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:04,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:04,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:04,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504711052] [2024-11-19 01:35:04,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504711052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:04,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:04,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:35:04,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574918843] [2024-11-19 01:35:04,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:04,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:35:04,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:04,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:35:04,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:35:04,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-11-19 01:35:04,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 101 transitions, 1083 flow. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-11-19 01:35:04,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:04,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-11-19 01:35:04,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:07,570 INFO L124 PetriNetUnfolderBase]: 14778/26289 cut-off events. [2024-11-19 01:35:07,570 INFO L125 PetriNetUnfolderBase]: For 183646/185503 co-relation queries the response was YES. [2024-11-19 01:35:07,685 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115898 conditions, 26289 events. 14778/26289 cut-off events. For 183646/185503 co-relation queries the response was YES. Maximal size of possible extension queue 1890. Compared 255317 event pairs, 2553 based on Foata normal form. 719/25859 useless extension candidates. Maximal degree in co-relation 115855. Up to 11125 conditions per place. [2024-11-19 01:35:07,754 INFO L140 encePairwiseOnDemand]: 39/48 looper letters, 86 selfloop transitions, 57 changer transitions 40/221 dead transitions. [2024-11-19 01:35:07,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 221 transitions, 2724 flow [2024-11-19 01:35:07,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:35:07,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-19 01:35:07,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 386 transitions. [2024-11-19 01:35:07,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6185897435897436 [2024-11-19 01:35:07,755 INFO L175 Difference]: Start difference. First operand has 98 places, 101 transitions, 1083 flow. Second operand 13 states and 386 transitions. [2024-11-19 01:35:07,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 221 transitions, 2724 flow [2024-11-19 01:35:08,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 221 transitions, 2576 flow, removed 74 selfloop flow, removed 0 redundant places. [2024-11-19 01:35:08,380 INFO L231 Difference]: Finished difference. Result has 117 places, 136 transitions, 1644 flow [2024-11-19 01:35:08,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=989, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1644, PETRI_PLACES=117, PETRI_TRANSITIONS=136} [2024-11-19 01:35:08,380 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 61 predicate places. [2024-11-19 01:35:08,380 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 136 transitions, 1644 flow [2024-11-19 01:35:08,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 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) [2024-11-19 01:35:08,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:08,381 INFO L204 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] [2024-11-19 01:35:08,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:35:08,381 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:35:08,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:08,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1354845608, now seen corresponding path program 1 times [2024-11-19 01:35:08,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:08,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985433871] [2024-11-19 01:35:08,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:08,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:08,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:08,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985433871] [2024-11-19 01:35:08,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985433871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:08,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:08,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:35:08,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045932476] [2024-11-19 01:35:08,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:08,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:35:08,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:08,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:35:08,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:35:08,868 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 48 [2024-11-19 01:35:08,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 136 transitions, 1644 flow. Second operand has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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) [2024-11-19 01:35:08,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:08,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 48 [2024-11-19 01:35:08,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:12,016 INFO L124 PetriNetUnfolderBase]: 14236/25758 cut-off events. [2024-11-19 01:35:12,016 INFO L125 PetriNetUnfolderBase]: For 240096/242127 co-relation queries the response was YES. [2024-11-19 01:35:12,177 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122399 conditions, 25758 events. 14236/25758 cut-off events. For 240096/242127 co-relation queries the response was YES. Maximal size of possible extension queue 1874. Compared 254260 event pairs, 2293 based on Foata normal form. 532/25024 useless extension candidates. Maximal degree in co-relation 122347. Up to 13640 conditions per place. [2024-11-19 01:35:12,244 INFO L140 encePairwiseOnDemand]: 42/48 looper letters, 104 selfloop transitions, 35 changer transitions 24/201 dead transitions. [2024-11-19 01:35:12,245 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 201 transitions, 2739 flow [2024-11-19 01:35:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 01:35:12,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-19 01:35:12,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 244 transitions. [2024-11-19 01:35:12,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6354166666666666 [2024-11-19 01:35:12,246 INFO L175 Difference]: Start difference. First operand has 117 places, 136 transitions, 1644 flow. Second operand 8 states and 244 transitions. [2024-11-19 01:35:12,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 201 transitions, 2739 flow [2024-11-19 01:35:13,352 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 201 transitions, 2620 flow, removed 52 selfloop flow, removed 3 redundant places. [2024-11-19 01:35:13,354 INFO L231 Difference]: Finished difference. Result has 125 places, 140 transitions, 1750 flow [2024-11-19 01:35:13,355 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1565, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1750, PETRI_PLACES=125, PETRI_TRANSITIONS=140} [2024-11-19 01:35:13,355 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 69 predicate places. [2024-11-19 01:35:13,355 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 140 transitions, 1750 flow [2024-11-19 01:35:13,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 24.0) internal successors, (192), 8 states have internal predecessors, (192), 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) [2024-11-19 01:35:13,355 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:13,356 INFO L204 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] [2024-11-19 01:35:13,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:35:13,356 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:35:13,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:13,356 INFO L85 PathProgramCache]: Analyzing trace with hash -817172865, now seen corresponding path program 1 times [2024-11-19 01:35:13,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:13,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691118516] [2024-11-19 01:35:13,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:35:13,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:35:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:13,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:13,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691118516] [2024-11-19 01:35:13,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691118516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:13,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:13,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:35:13,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903418748] [2024-11-19 01:35:13,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:13,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:35:13,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:13,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:35:13,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:35:13,857 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 48 [2024-11-19 01:35:13,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 140 transitions, 1750 flow. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-11-19 01:35:13,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:13,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 48 [2024-11-19 01:35:13,858 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:18,419 INFO L124 PetriNetUnfolderBase]: 19986/33620 cut-off events. [2024-11-19 01:35:18,419 INFO L125 PetriNetUnfolderBase]: For 340981/342194 co-relation queries the response was YES. [2024-11-19 01:35:18,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166532 conditions, 33620 events. 19986/33620 cut-off events. For 340981/342194 co-relation queries the response was YES. Maximal size of possible extension queue 2362. Compared 316141 event pairs, 8526 based on Foata normal form. 713/32874 useless extension candidates. Maximal degree in co-relation 166475. Up to 21968 conditions per place. [2024-11-19 01:35:18,747 INFO L140 encePairwiseOnDemand]: 37/48 looper letters, 90 selfloop transitions, 48 changer transitions 102/264 dead transitions. [2024-11-19 01:35:18,747 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 264 transitions, 3765 flow [2024-11-19 01:35:18,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:35:18,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:35:18,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 277 transitions. [2024-11-19 01:35:18,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5770833333333333 [2024-11-19 01:35:18,749 INFO L175 Difference]: Start difference. First operand has 125 places, 140 transitions, 1750 flow. Second operand 10 states and 277 transitions. [2024-11-19 01:35:18,749 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 264 transitions, 3765 flow [2024-11-19 01:35:20,512 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 264 transitions, 3651 flow, removed 38 selfloop flow, removed 4 redundant places. [2024-11-19 01:35:20,515 INFO L231 Difference]: Finished difference. Result has 137 places, 141 transitions, 1970 flow [2024-11-19 01:35:20,515 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1643, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1970, PETRI_PLACES=137, PETRI_TRANSITIONS=141} [2024-11-19 01:35:20,516 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 81 predicate places. [2024-11-19 01:35:20,516 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 141 transitions, 1970 flow [2024-11-19 01:35:20,516 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-11-19 01:35:20,516 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:20,516 INFO L204 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] [2024-11-19 01:35:20,516 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:35:20,516 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:35:20,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:20,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1797812301, now seen corresponding path program 2 times [2024-11-19 01:35:20,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:20,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753262134] [2024-11-19 01:35:20,517 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 01:35:20,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:20,544 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 01:35:20,544 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:20,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:20,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:20,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753262134] [2024-11-19 01:35:20,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753262134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:20,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:20,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:35:20,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760678355] [2024-11-19 01:35:20,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:20,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:35:20,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:20,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:35:20,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:35:21,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 48 [2024-11-19 01:35:21,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 141 transitions, 1970 flow. Second operand has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-11-19 01:35:21,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:21,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 48 [2024-11-19 01:35:21,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:35:24,042 INFO L124 PetriNetUnfolderBase]: 14601/23804 cut-off events. [2024-11-19 01:35:24,043 INFO L125 PetriNetUnfolderBase]: For 319646/321105 co-relation queries the response was YES. [2024-11-19 01:35:24,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 137230 conditions, 23804 events. 14601/23804 cut-off events. For 319646/321105 co-relation queries the response was YES. Maximal size of possible extension queue 1429. Compared 201948 event pairs, 2054 based on Foata normal form. 798/23561 useless extension candidates. Maximal degree in co-relation 137168. Up to 13712 conditions per place. [2024-11-19 01:35:24,290 INFO L140 encePairwiseOnDemand]: 38/48 looper letters, 122 selfloop transitions, 61 changer transitions 53/260 dead transitions. [2024-11-19 01:35:24,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 260 transitions, 4040 flow [2024-11-19 01:35:24,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:35:24,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 01:35:24,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 259 transitions. [2024-11-19 01:35:24,295 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5995370370370371 [2024-11-19 01:35:24,295 INFO L175 Difference]: Start difference. First operand has 137 places, 141 transitions, 1970 flow. Second operand 9 states and 259 transitions. [2024-11-19 01:35:24,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 260 transitions, 4040 flow [2024-11-19 01:35:26,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 260 transitions, 3759 flow, removed 129 selfloop flow, removed 16 redundant places. [2024-11-19 01:35:26,205 INFO L231 Difference]: Finished difference. Result has 110 places, 162 transitions, 2393 flow [2024-11-19 01:35:26,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=48, PETRI_DIFFERENCE_MINUEND_FLOW=1795, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2393, PETRI_PLACES=110, PETRI_TRANSITIONS=162} [2024-11-19 01:35:26,207 INFO L277 CegarLoopForPetriNet]: 56 programPoint places, 54 predicate places. [2024-11-19 01:35:26,208 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 162 transitions, 2393 flow [2024-11-19 01:35:26,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.25) internal successors, (170), 8 states have internal predecessors, (170), 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) [2024-11-19 01:35:26,208 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:35:26,208 INFO L204 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] [2024-11-19 01:35:26,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:35:26,209 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:35:26,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:35:26,209 INFO L85 PathProgramCache]: Analyzing trace with hash -813808039, now seen corresponding path program 3 times [2024-11-19 01:35:26,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:35:26,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697002273] [2024-11-19 01:35:26,210 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 01:35:26,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:35:26,228 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-19 01:35:26,228 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 01:35:26,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 01:35:26,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:35:26,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697002273] [2024-11-19 01:35:26,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697002273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:35:26,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:35:26,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:35:26,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323061158] [2024-11-19 01:35:26,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:35:26,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:35:26,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:35:26,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:35:26,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:35:26,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 48 [2024-11-19 01:35:26,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 162 transitions, 2393 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-19 01:35:26,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:35:26,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 48 [2024-11-19 01:35:26,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand