./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix021.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/mix021.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 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:32:25,899 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:32:25,961 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:32:25,980 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:32:25,980 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:32:26,007 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:32:26,007 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:32:26,008 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:32:26,008 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:32:26,008 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:32:26,008 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:32:26,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:32:26,009 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:32:26,009 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:32:26,010 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:32:26,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:32:26,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:32:26,010 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:32:26,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:32:26,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:32:26,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:32:26,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:32:26,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:32:26,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:32:26,012 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:32:26,012 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:32:26,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:32:26,012 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:32:26,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:32:26,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:32:26,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:32:26,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:32:26,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:32:26,014 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:32:26,014 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:32:26,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:32:26,014 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:32:26,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:32:26,015 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:32:26,015 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:32:26,015 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:32:26,015 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:32:26,015 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 576d0750cd121d18ae295ddde1dd1649436f79f5ff3834655e4b6c15fd1260db [2024-11-19 01:32:26,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:32:26,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:32:26,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:32:26,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:32:26,271 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:32:26,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-11-19 01:32:27,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:32:27,790 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:32:27,791 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix021.opt.i [2024-11-19 01:32:27,809 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f09c731/ba70488244d44797b8cd17be64ab8e35/FLAGffcf6826c [2024-11-19 01:32:27,821 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36f09c731/ba70488244d44797b8cd17be64ab8e35 [2024-11-19 01:32:27,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:32:27,825 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:32:27,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:32:27,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:32:27,831 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:32:27,832 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:32:27" (1/1) ... [2024-11-19 01:32:27,833 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d92b72a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:27, skipping insertion in model container [2024-11-19 01:32:27,833 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:32:27" (1/1) ... [2024-11-19 01:32:27,878 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:32:28,048 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/mix021.opt.i[944,957] [2024-11-19 01:32:28,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:32:28,258 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:32:28,270 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/mix021.opt.i[944,957] [2024-11-19 01:32:28,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:32:28,343 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:32:28,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28 WrapperNode [2024-11-19 01:32:28,344 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:32:28,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:32:28,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:32:28,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:32:28,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,407 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 149 [2024-11-19 01:32:28,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:32:28,414 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:32:28,414 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:32:28,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:32:28,423 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,424 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,428 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,453 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 01:32:28,454 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,483 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,495 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:32:28,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:32:28,499 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:32:28,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:32:28,500 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (1/1) ... [2024-11-19 01:32:28,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:32:28,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:32:28,544 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 01:32:28,547 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 01:32:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 01:32:28,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:32:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-19 01:32:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-19 01:32:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-19 01:32:28,595 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-19 01:32:28,595 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-19 01:32:28,596 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-19 01:32:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-19 01:32:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-19 01:32:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 01:32:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 01:32:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:32:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:32:28,599 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 01:32:28,734 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:32:28,736 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:32:29,063 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 01:32:29,063 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:32:29,229 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:32:29,229 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 01:32:29,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:32:29 BoogieIcfgContainer [2024-11-19 01:32:29,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:32:29,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:32:29,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:32:29,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:32:29,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:32:27" (1/3) ... [2024-11-19 01:32:29,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85a3632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:32:29, skipping insertion in model container [2024-11-19 01:32:29,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:32:28" (2/3) ... [2024-11-19 01:32:29,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@85a3632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:32:29, skipping insertion in model container [2024-11-19 01:32:29,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:32:29" (3/3) ... [2024-11-19 01:32:29,238 INFO L112 eAbstractionObserver]: Analyzing ICFG mix021.opt.i [2024-11-19 01:32:29,253 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:32:29,254 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 01:32:29,254 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 01:32:29,303 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-19 01:32:29,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-19 01:32:29,354 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-19 01:32:29,354 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:32:29,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 45 events. 1/45 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 91 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2024-11-19 01:32:29,359 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-19 01:32:29,361 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-19 01:32:29,369 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:32:29,374 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;@24fb59ee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:32:29,374 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-19 01:32:29,382 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 01:32:29,383 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-19 01:32:29,383 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:32:29,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:29,383 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:32:29,384 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 01:32:29,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:29,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1251635780, now seen corresponding path program 1 times [2024-11-19 01:32:29,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:29,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535650907] [2024-11-19 01:32:29,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:29,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:29,868 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 01:32:29,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:29,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535650907] [2024-11-19 01:32:29,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535650907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:29,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:29,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-19 01:32:29,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259878206] [2024-11-19 01:32:29,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:29,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 01:32:29,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:29,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 01:32:29,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 01:32:29,905 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 49 [2024-11-19 01:32:29,907 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 01:32:29,907 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:29,907 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 49 [2024-11-19 01:32:29,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:30,273 INFO L124 PetriNetUnfolderBase]: 879/1523 cut-off events. [2024-11-19 01:32:30,274 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 01:32:30,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2843 conditions, 1523 events. 879/1523 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 10412 event pairs, 159 based on Foata normal form. 60/1543 useless extension candidates. Maximal degree in co-relation 2831. Up to 1009 conditions per place. [2024-11-19 01:32:30,291 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 26 selfloop transitions, 2 changer transitions 2/52 dead transitions. [2024-11-19 01:32:30,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 52 transitions, 176 flow [2024-11-19 01:32:30,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 01:32:30,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 01:32:30,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 111 transitions. [2024-11-19 01:32:30,304 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7551020408163265 [2024-11-19 01:32:30,305 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 111 transitions. [2024-11-19 01:32:30,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 52 transitions, 176 flow [2024-11-19 01:32:30,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 52 transitions, 172 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-19 01:32:30,312 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-19 01:32:30,315 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=94, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=96, PETRI_PLACES=54, PETRI_TRANSITIONS=42} [2024-11-19 01:32:30,319 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-19 01:32:30,320 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-19 01:32:30,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 01:32:30,320 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:30,321 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:32:30,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 01:32:30,321 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 01:32:30,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:30,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1771103079, now seen corresponding path program 1 times [2024-11-19 01:32:30,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:30,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942908709] [2024-11-19 01:32:30,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:30,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:30,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:30,585 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 01:32:30,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:30,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942908709] [2024-11-19 01:32:30,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942908709] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:30,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:30,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:32:30,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556565433] [2024-11-19 01:32:30,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:30,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:32:30,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:30,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:32:30,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:32:30,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-19 01:32:30,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 01:32:30,612 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:30,612 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-19 01:32:30,612 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:33,141 INFO L124 PetriNetUnfolderBase]: 15819/23731 cut-off events. [2024-11-19 01:32:33,141 INFO L125 PetriNetUnfolderBase]: For 868/868 co-relation queries the response was YES. [2024-11-19 01:32:33,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46421 conditions, 23731 events. 15819/23731 cut-off events. For 868/868 co-relation queries the response was YES. Maximal size of possible extension queue 1398. Compared 180560 event pairs, 3634 based on Foata normal form. 0/23023 useless extension candidates. Maximal degree in co-relation 46411. Up to 8109 conditions per place. [2024-11-19 01:32:33,264 INFO L140 encePairwiseOnDemand]: 37/49 looper letters, 41 selfloop transitions, 8 changer transitions 85/148 dead transitions. [2024-11-19 01:32:33,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 148 transitions, 594 flow [2024-11-19 01:32:33,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 01:32:33,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-19 01:32:33,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 298 transitions. [2024-11-19 01:32:33,267 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6757369614512472 [2024-11-19 01:32:33,267 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 9 states and 298 transitions. [2024-11-19 01:32:33,267 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 148 transitions, 594 flow [2024-11-19 01:32:33,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 148 transitions, 576 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 01:32:33,279 INFO L231 Difference]: Finished difference. Result has 67 places, 48 transitions, 202 flow [2024-11-19 01:32:33,280 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=67, PETRI_TRANSITIONS=48} [2024-11-19 01:32:33,280 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2024-11-19 01:32:33,280 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 48 transitions, 202 flow [2024-11-19 01:32:33,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 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 01:32:33,281 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:33,281 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 01:32:33,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:32:33,281 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 01:32:33,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:33,282 INFO L85 PathProgramCache]: Analyzing trace with hash -1492082494, now seen corresponding path program 1 times [2024-11-19 01:32:33,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:33,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783631932] [2024-11-19 01:32:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:33,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:33,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:33,463 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 01:32:33,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:33,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783631932] [2024-11-19 01:32:33,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783631932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:33,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:33,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:32:33,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173986645] [2024-11-19 01:32:33,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:33,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:32:33,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:33,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:32:33,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:32:33,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 49 [2024-11-19 01:32:33,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 48 transitions, 202 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 01:32:33,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:33,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 49 [2024-11-19 01:32:33,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:35,372 INFO L124 PetriNetUnfolderBase]: 11171/17853 cut-off events. [2024-11-19 01:32:35,373 INFO L125 PetriNetUnfolderBase]: For 29535/29535 co-relation queries the response was YES. [2024-11-19 01:32:35,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55081 conditions, 17853 events. 11171/17853 cut-off events. For 29535/29535 co-relation queries the response was YES. Maximal size of possible extension queue 1017. Compared 139976 event pairs, 1903 based on Foata normal form. 486/18226 useless extension candidates. Maximal degree in co-relation 55063. Up to 5673 conditions per place. [2024-11-19 01:32:35,533 INFO L140 encePairwiseOnDemand]: 38/49 looper letters, 51 selfloop transitions, 9 changer transitions 80/154 dead transitions. [2024-11-19 01:32:35,533 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 154 transitions, 1064 flow [2024-11-19 01:32:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 01:32:35,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-19 01:32:35,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 305 transitions. [2024-11-19 01:32:35,537 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6224489795918368 [2024-11-19 01:32:35,537 INFO L175 Difference]: Start difference. First operand has 67 places, 48 transitions, 202 flow. Second operand 10 states and 305 transitions. [2024-11-19 01:32:35,537 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 154 transitions, 1064 flow [2024-11-19 01:32:35,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 154 transitions, 918 flow, removed 36 selfloop flow, removed 4 redundant places. [2024-11-19 01:32:35,606 INFO L231 Difference]: Finished difference. Result has 74 places, 53 transitions, 272 flow [2024-11-19 01:32:35,607 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=272, PETRI_PLACES=74, PETRI_TRANSITIONS=53} [2024-11-19 01:32:35,607 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 17 predicate places. [2024-11-19 01:32:35,608 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 53 transitions, 272 flow [2024-11-19 01:32:35,608 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 01:32:35,608 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:35,608 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 01:32:35,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:32:35,609 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 01:32:35,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:35,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1168558406, now seen corresponding path program 1 times [2024-11-19 01:32:35,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:35,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62125992] [2024-11-19 01:32:35,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:35,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:35,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:35,828 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 01:32:35,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:35,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62125992] [2024-11-19 01:32:35,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62125992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:35,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:35,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:32:35,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75252803] [2024-11-19 01:32:35,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:35,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:32:35,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:35,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:32:35,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:32:35,840 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-19 01:32:35,841 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 53 transitions, 272 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 01:32:35,841 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:35,841 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-19 01:32:35,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:37,302 INFO L124 PetriNetUnfolderBase]: 7926/13710 cut-off events. [2024-11-19 01:32:37,302 INFO L125 PetriNetUnfolderBase]: For 31981/32614 co-relation queries the response was YES. [2024-11-19 01:32:37,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42846 conditions, 13710 events. 7926/13710 cut-off events. For 31981/32614 co-relation queries the response was YES. Maximal size of possible extension queue 817. Compared 114649 event pairs, 2141 based on Foata normal form. 393/13213 useless extension candidates. Maximal degree in co-relation 42821. Up to 7939 conditions per place. [2024-11-19 01:32:37,442 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 43 selfloop transitions, 7 changer transitions 39/111 dead transitions. [2024-11-19 01:32:37,443 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 111 transitions, 770 flow [2024-11-19 01:32:37,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:32:37,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:32:37,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 216 transitions. [2024-11-19 01:32:37,444 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6297376093294461 [2024-11-19 01:32:37,444 INFO L175 Difference]: Start difference. First operand has 74 places, 53 transitions, 272 flow. Second operand 7 states and 216 transitions. [2024-11-19 01:32:37,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 111 transitions, 770 flow [2024-11-19 01:32:37,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 111 transitions, 741 flow, removed 12 selfloop flow, removed 3 redundant places. [2024-11-19 01:32:37,650 INFO L231 Difference]: Finished difference. Result has 76 places, 59 transitions, 368 flow [2024-11-19 01:32:37,651 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=368, PETRI_PLACES=76, PETRI_TRANSITIONS=59} [2024-11-19 01:32:37,653 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places. [2024-11-19 01:32:37,653 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 59 transitions, 368 flow [2024-11-19 01:32:37,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 01:32:37,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:37,653 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 01:32:37,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:32:37,654 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 01:32:37,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:37,654 INFO L85 PathProgramCache]: Analyzing trace with hash 2130153545, now seen corresponding path program 1 times [2024-11-19 01:32:37,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:37,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777945291] [2024-11-19 01:32:37,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:37,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:37,848 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 01:32:37,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:37,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777945291] [2024-11-19 01:32:37,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777945291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:37,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:37,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:32:37,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836921267] [2024-11-19 01:32:37,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:37,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:32:37,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:37,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:32:37,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:32:37,856 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-19 01:32:37,857 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 59 transitions, 368 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 01:32:37,857 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:37,857 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-19 01:32:37,857 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:39,348 INFO L124 PetriNetUnfolderBase]: 7570/13001 cut-off events. [2024-11-19 01:32:39,349 INFO L125 PetriNetUnfolderBase]: For 32969/33579 co-relation queries the response was YES. [2024-11-19 01:32:39,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42431 conditions, 13001 events. 7570/13001 cut-off events. For 32969/33579 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 105860 event pairs, 3000 based on Foata normal form. 363/13062 useless extension candidates. Maximal degree in co-relation 42402. Up to 8123 conditions per place. [2024-11-19 01:32:39,457 INFO L140 encePairwiseOnDemand]: 43/49 looper letters, 46 selfloop transitions, 6 changer transitions 37/117 dead transitions. [2024-11-19 01:32:39,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 117 transitions, 852 flow [2024-11-19 01:32:39,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:32:39,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:32:39,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 221 transitions. [2024-11-19 01:32:39,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6443148688046647 [2024-11-19 01:32:39,461 INFO L175 Difference]: Start difference. First operand has 76 places, 59 transitions, 368 flow. Second operand 7 states and 221 transitions. [2024-11-19 01:32:39,461 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 117 transitions, 852 flow [2024-11-19 01:32:39,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 117 transitions, 801 flow, removed 22 selfloop flow, removed 7 redundant places. [2024-11-19 01:32:39,571 INFO L231 Difference]: Finished difference. Result has 76 places, 64 transitions, 411 flow [2024-11-19 01:32:39,571 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=411, PETRI_PLACES=76, PETRI_TRANSITIONS=64} [2024-11-19 01:32:39,573 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places. [2024-11-19 01:32:39,574 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 64 transitions, 411 flow [2024-11-19 01:32:39,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 01:32:39,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:39,574 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 01:32:39,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:32:39,576 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 01:32:39,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash 185670121, now seen corresponding path program 1 times [2024-11-19 01:32:39,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:39,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889216687] [2024-11-19 01:32:39,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:39,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:39,792 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 01:32:39,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:39,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889216687] [2024-11-19 01:32:39,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889216687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:39,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:39,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:32:39,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976586938] [2024-11-19 01:32:39,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:39,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:32:39,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:39,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:32:39,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:32:39,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-19 01:32:39,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 64 transitions, 411 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 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 01:32:39,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:39,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-19 01:32:39,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:41,911 INFO L124 PetriNetUnfolderBase]: 9176/15681 cut-off events. [2024-11-19 01:32:41,911 INFO L125 PetriNetUnfolderBase]: For 47018/47447 co-relation queries the response was YES. [2024-11-19 01:32:41,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51281 conditions, 15681 events. 9176/15681 cut-off events. For 47018/47447 co-relation queries the response was YES. Maximal size of possible extension queue 927. Compared 135324 event pairs, 3516 based on Foata normal form. 345/15356 useless extension candidates. Maximal degree in co-relation 51252. Up to 5947 conditions per place. [2024-11-19 01:32:42,041 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 46 selfloop transitions, 8 changer transitions 38/119 dead transitions. [2024-11-19 01:32:42,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 119 transitions, 883 flow [2024-11-19 01:32:42,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:32:42,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:32:42,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 220 transitions. [2024-11-19 01:32:42,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.641399416909621 [2024-11-19 01:32:42,043 INFO L175 Difference]: Start difference. First operand has 76 places, 64 transitions, 411 flow. Second operand 7 states and 220 transitions. [2024-11-19 01:32:42,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 119 transitions, 883 flow [2024-11-19 01:32:42,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 119 transitions, 849 flow, removed 14 selfloop flow, removed 3 redundant places. [2024-11-19 01:32:42,142 INFO L231 Difference]: Finished difference. Result has 80 places, 63 transitions, 419 flow [2024-11-19 01:32:42,142 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=393, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=419, PETRI_PLACES=80, PETRI_TRANSITIONS=63} [2024-11-19 01:32:42,143 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 23 predicate places. [2024-11-19 01:32:42,143 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 63 transitions, 419 flow [2024-11-19 01:32:42,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 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 01:32:42,143 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:42,143 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 01:32:42,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 01:32:42,143 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 01:32:42,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:42,144 INFO L85 PathProgramCache]: Analyzing trace with hash -1390336798, now seen corresponding path program 1 times [2024-11-19 01:32:42,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:42,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468510043] [2024-11-19 01:32:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:42,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:42,303 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 01:32:42,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:42,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468510043] [2024-11-19 01:32:42,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468510043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:42,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:42,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 01:32:42,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078660974] [2024-11-19 01:32:42,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:42,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:32:42,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:42,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:32:42,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:32:42,319 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-19 01:32:42,319 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 63 transitions, 419 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 01:32:42,319 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:42,319 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-19 01:32:42,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:45,873 INFO L124 PetriNetUnfolderBase]: 24881/37722 cut-off events. [2024-11-19 01:32:45,873 INFO L125 PetriNetUnfolderBase]: For 77188/80109 co-relation queries the response was YES. [2024-11-19 01:32:46,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105455 conditions, 37722 events. 24881/37722 cut-off events. For 77188/80109 co-relation queries the response was YES. Maximal size of possible extension queue 1934. Compared 296201 event pairs, 4474 based on Foata normal form. 1825/38557 useless extension candidates. Maximal degree in co-relation 105423. Up to 19440 conditions per place. [2024-11-19 01:32:46,384 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 56 selfloop transitions, 6 changer transitions 0/97 dead transitions. [2024-11-19 01:32:46,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 97 transitions, 677 flow [2024-11-19 01:32:46,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:32:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 01:32:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 139 transitions. [2024-11-19 01:32:46,385 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7091836734693877 [2024-11-19 01:32:46,385 INFO L175 Difference]: Start difference. First operand has 80 places, 63 transitions, 419 flow. Second operand 4 states and 139 transitions. [2024-11-19 01:32:46,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 97 transitions, 677 flow [2024-11-19 01:32:46,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 97 transitions, 647 flow, removed 11 selfloop flow, removed 5 redundant places. [2024-11-19 01:32:46,557 INFO L231 Difference]: Finished difference. Result has 76 places, 68 transitions, 435 flow [2024-11-19 01:32:46,557 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=389, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=435, PETRI_PLACES=76, PETRI_TRANSITIONS=68} [2024-11-19 01:32:46,557 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 19 predicate places. [2024-11-19 01:32:46,557 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 68 transitions, 435 flow [2024-11-19 01:32:46,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 01:32:46,558 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:46,558 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, 1, 1, 1] [2024-11-19 01:32:46,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 01:32:46,558 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 01:32:46,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1693650685, now seen corresponding path program 1 times [2024-11-19 01:32:46,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:46,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80987079] [2024-11-19 01:32:46,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:46,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:46,714 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 01:32:46,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:46,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80987079] [2024-11-19 01:32:46,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80987079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:46,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:46,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:32:46,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349986005] [2024-11-19 01:32:46,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:46,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:32:46,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:46,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:32:46,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:32:46,722 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-19 01:32:46,723 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 68 transitions, 435 flow. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 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 01:32:46,723 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:46,723 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-19 01:32:46,723 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:51,075 INFO L124 PetriNetUnfolderBase]: 25111/41694 cut-off events. [2024-11-19 01:32:51,075 INFO L125 PetriNetUnfolderBase]: For 87937/90012 co-relation queries the response was YES. [2024-11-19 01:32:51,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125079 conditions, 41694 events. 25111/41694 cut-off events. For 87937/90012 co-relation queries the response was YES. Maximal size of possible extension queue 2394. Compared 384610 event pairs, 11933 based on Foata normal form. 1102/38239 useless extension candidates. Maximal degree in co-relation 125048. Up to 15762 conditions per place. [2024-11-19 01:32:51,667 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 72 selfloop transitions, 14 changer transitions 4/122 dead transitions. [2024-11-19 01:32:51,667 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 122 transitions, 873 flow [2024-11-19 01:32:51,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:32:51,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:32:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 222 transitions. [2024-11-19 01:32:51,668 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6472303206997084 [2024-11-19 01:32:51,668 INFO L175 Difference]: Start difference. First operand has 76 places, 68 transitions, 435 flow. Second operand 7 states and 222 transitions. [2024-11-19 01:32:51,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 122 transitions, 873 flow [2024-11-19 01:32:51,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 122 transitions, 865 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-19 01:32:51,787 INFO L231 Difference]: Finished difference. Result has 86 places, 73 transitions, 544 flow [2024-11-19 01:32:51,788 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=431, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=544, PETRI_PLACES=86, PETRI_TRANSITIONS=73} [2024-11-19 01:32:51,788 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2024-11-19 01:32:51,788 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 73 transitions, 544 flow [2024-11-19 01:32:51,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 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 01:32:51,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:51,789 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, 1, 1, 1] [2024-11-19 01:32:51,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:32:51,789 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 01:32:51,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:51,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1232035489, now seen corresponding path program 1 times [2024-11-19 01:32:51,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:51,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046939292] [2024-11-19 01:32:51,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:51,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:51,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:52,009 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 01:32:52,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:52,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046939292] [2024-11-19 01:32:52,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046939292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:52,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:52,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:32:52,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867815132] [2024-11-19 01:32:52,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:52,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 01:32:52,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 01:32:52,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 01:32:52,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-19 01:32:52,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 73 transitions, 544 flow. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 01:32:52,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:52,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-19 01:32:52,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:32:57,655 INFO L124 PetriNetUnfolderBase]: 33733/50865 cut-off events. [2024-11-19 01:32:57,656 INFO L125 PetriNetUnfolderBase]: For 95433/99619 co-relation queries the response was YES. [2024-11-19 01:32:58,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 152810 conditions, 50865 events. 33733/50865 cut-off events. For 95433/99619 co-relation queries the response was YES. Maximal size of possible extension queue 2544. Compared 404280 event pairs, 3592 based on Foata normal form. 2747/52482 useless extension candidates. Maximal degree in co-relation 152774. Up to 20977 conditions per place. [2024-11-19 01:32:58,141 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 71 selfloop transitions, 10 changer transitions 5/123 dead transitions. [2024-11-19 01:32:58,141 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 123 transitions, 932 flow [2024-11-19 01:32:58,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 01:32:58,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-19 01:32:58,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 178 transitions. [2024-11-19 01:32:58,143 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.726530612244898 [2024-11-19 01:32:58,143 INFO L175 Difference]: Start difference. First operand has 86 places, 73 transitions, 544 flow. Second operand 5 states and 178 transitions. [2024-11-19 01:32:58,143 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 123 transitions, 932 flow [2024-11-19 01:32:58,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 123 transitions, 901 flow, removed 11 selfloop flow, removed 1 redundant places. [2024-11-19 01:32:58,737 INFO L231 Difference]: Finished difference. Result has 91 places, 75 transitions, 548 flow [2024-11-19 01:32:58,737 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=513, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=548, PETRI_PLACES=91, PETRI_TRANSITIONS=75} [2024-11-19 01:32:58,738 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 34 predicate places. [2024-11-19 01:32:58,738 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 75 transitions, 548 flow [2024-11-19 01:32:58,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 5 states have internal predecessors, (121), 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 01:32:58,738 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:32:58,738 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, 1, 1, 1, 1, 1, 1] [2024-11-19 01:32:58,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:32:58,738 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 01:32:58,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:32:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash -118071740, now seen corresponding path program 1 times [2024-11-19 01:32:58,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:32:58,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578608244] [2024-11-19 01:32:58,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:32:58,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:32:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:32:59,259 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 01:32:59,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:32:59,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578608244] [2024-11-19 01:32:59,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578608244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:32:59,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:32:59,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 01:32:59,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508070179] [2024-11-19 01:32:59,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:32:59,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 01:32:59,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:32:59,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 01:32:59,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 01:32:59,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-19 01:32:59,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 75 transitions, 548 flow. Second operand has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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 01:32:59,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:32:59,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-19 01:32:59,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:33:03,711 INFO L124 PetriNetUnfolderBase]: 26417/39785 cut-off events. [2024-11-19 01:33:03,711 INFO L125 PetriNetUnfolderBase]: For 80673/86154 co-relation queries the response was YES. [2024-11-19 01:33:04,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131308 conditions, 39785 events. 26417/39785 cut-off events. For 80673/86154 co-relation queries the response was YES. Maximal size of possible extension queue 2094. Compared 306861 event pairs, 1412 based on Foata normal form. 2254/41035 useless extension candidates. Maximal degree in co-relation 131269. Up to 12976 conditions per place. [2024-11-19 01:33:04,098 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 81 selfloop transitions, 14 changer transitions 5/137 dead transitions. [2024-11-19 01:33:04,098 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 137 transitions, 1033 flow [2024-11-19 01:33:04,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:33:04,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 01:33:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 215 transitions. [2024-11-19 01:33:04,099 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7312925170068028 [2024-11-19 01:33:04,099 INFO L175 Difference]: Start difference. First operand has 91 places, 75 transitions, 548 flow. Second operand 6 states and 215 transitions. [2024-11-19 01:33:04,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 137 transitions, 1033 flow [2024-11-19 01:33:04,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 137 transitions, 1007 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-11-19 01:33:04,213 INFO L231 Difference]: Finished difference. Result has 92 places, 80 transitions, 608 flow [2024-11-19 01:33:04,213 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=608, PETRI_PLACES=92, PETRI_TRANSITIONS=80} [2024-11-19 01:33:04,214 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 35 predicate places. [2024-11-19 01:33:04,214 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 80 transitions, 608 flow [2024-11-19 01:33:04,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.0) internal successors, (144), 6 states have internal predecessors, (144), 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 01:33:04,214 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:33:04,214 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:33:04,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:33:04,214 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 01:33:04,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:33:04,215 INFO L85 PathProgramCache]: Analyzing trace with hash 601255363, now seen corresponding path program 1 times [2024-11-19 01:33:04,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:33:04,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798229529] [2024-11-19 01:33:04,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:33:04,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:33:04,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:33:04,502 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 01:33:04,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:33:04,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798229529] [2024-11-19 01:33:04,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798229529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:33:04,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:33:04,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 01:33:04,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884327676] [2024-11-19 01:33:04,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:33:04,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:33:04,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:33:04,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:33:04,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:33:04,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-19 01:33:04,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 80 transitions, 608 flow. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 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 01:33:04,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 01:33:04,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-19 01:33:04,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 01:33:08,571 INFO L124 PetriNetUnfolderBase]: 23525/35277 cut-off events. [2024-11-19 01:33:08,571 INFO L125 PetriNetUnfolderBase]: For 106398/111792 co-relation queries the response was YES. [2024-11-19 01:33:08,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 127267 conditions, 35277 events. 23525/35277 cut-off events. For 106398/111792 co-relation queries the response was YES. Maximal size of possible extension queue 2087. Compared 270249 event pairs, 1308 based on Foata normal form. 1419/35708 useless extension candidates. Maximal degree in co-relation 127228. Up to 12976 conditions per place. [2024-11-19 01:33:08,909 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 70 selfloop transitions, 18 changer transitions 10/132 dead transitions. [2024-11-19 01:33:08,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 132 transitions, 999 flow [2024-11-19 01:33:08,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:33:08,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 01:33:08,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 234 transitions. [2024-11-19 01:33:08,911 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6822157434402333 [2024-11-19 01:33:08,911 INFO L175 Difference]: Start difference. First operand has 92 places, 80 transitions, 608 flow. Second operand 7 states and 234 transitions. [2024-11-19 01:33:08,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 132 transitions, 999 flow [2024-11-19 01:33:09,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 132 transitions, 914 flow, removed 30 selfloop flow, removed 11 redundant places. [2024-11-19 01:33:09,601 INFO L231 Difference]: Finished difference. Result has 88 places, 76 transitions, 545 flow [2024-11-19 01:33:09,601 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=545, PETRI_PLACES=88, PETRI_TRANSITIONS=76} [2024-11-19 01:33:09,601 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 31 predicate places. [2024-11-19 01:33:09,601 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 76 transitions, 545 flow [2024-11-19 01:33:09,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 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 01:33:09,602 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 01:33:09,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:33:09,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:33:09,602 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-19 01:33:09,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:33:09,602 INFO L85 PathProgramCache]: Analyzing trace with hash -864357697, now seen corresponding path program 1 times [2024-11-19 01:33:09,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:33:09,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323293413] [2024-11-19 01:33:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:33:09,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:33:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat