./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/mix017.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/mix017.oepc.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 a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 13:32:09,166 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 13:32:09,262 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 13:32:09,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 13:32:09,273 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 13:32:09,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 13:32:09,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 13:32:09,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 13:32:09,288 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 13:32:09,288 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 13:32:09,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 13:32:09,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 13:32:09,289 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 13:32:09,289 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 13:32:09,289 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 13:32:09,290 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 13:32:09,290 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 13:32:09,290 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 13:32:09,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 13:32:09,291 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 13:32:09,291 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 13:32:09,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 13:32:09,292 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 13:32:09,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 13:32:09,292 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 13:32:09,292 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 13:32:09,293 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 13:32:09,293 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 13:32:09,293 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 13:32:09,293 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 13:32:09,294 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 13:32:09,294 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 13:32:09,294 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:32:09,294 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 13:32:09,295 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 13:32:09,295 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 13:32:09,295 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 13:32:09,295 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 13:32:09,296 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 13:32:09,296 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 13:32:09,296 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 13:32:09,297 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 13:32:09,297 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a97b4f259d777d70ea3df756a2f94b2605f52fea9df0872361c6911477a44448 [2024-11-22 13:32:09,515 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 13:32:09,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 13:32:09,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 13:32:09,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 13:32:09,539 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 13:32:09,540 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-22 13:32:10,747 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 13:32:10,991 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 13:32:10,992 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix017.oepc.i [2024-11-22 13:32:11,014 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b75a728f/ccddff736fe64941be75798624bc5048/FLAG7e3bc5977 [2024-11-22 13:32:11,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b75a728f/ccddff736fe64941be75798624bc5048 [2024-11-22 13:32:11,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 13:32:11,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 13:32:11,036 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 13:32:11,036 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 13:32:11,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 13:32:11,042 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@427f66ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11, skipping insertion in model container [2024-11-22 13:32:11,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,079 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 13:32:11,268 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/mix017.oepc.i[945,958] [2024-11-22 13:32:11,449 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:32:11,463 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 13:32:11,473 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/mix017.oepc.i[945,958] [2024-11-22 13:32:11,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 13:32:11,572 INFO L204 MainTranslator]: Completed translation [2024-11-22 13:32:11,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11 WrapperNode [2024-11-22 13:32:11,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 13:32:11,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 13:32:11,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 13:32:11,575 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 13:32:11,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,627 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 129 [2024-11-22 13:32:11,630 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 13:32:11,631 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 13:32:11,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 13:32:11,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 13:32:11,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,648 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,673 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]. [2024-11-22 13:32:11,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,684 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,686 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,698 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 13:32:11,699 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 13:32:11,699 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 13:32:11,699 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 13:32:11,700 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (1/1) ... [2024-11-22 13:32:11,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 13:32:11,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 13:32:11,733 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) [2024-11-22 13:32:11,735 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 [2024-11-22 13:32:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-22 13:32:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 13:32:11,772 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-22 13:32:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-22 13:32:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-22 13:32:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-22 13:32:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-22 13:32:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-22 13:32:11,773 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-11-22 13:32:11,773 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-11-22 13:32:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 13:32:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-22 13:32:11,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 13:32:11,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 13:32:11,775 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-22 13:32:11,878 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 13:32:11,880 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 13:32:12,155 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-22 13:32:12,155 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 13:32:12,512 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 13:32:12,525 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 13:32:12,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:32:12 BoogieIcfgContainer [2024-11-22 13:32:12,526 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 13:32:12,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 13:32:12,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 13:32:12,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 13:32:12,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:32:11" (1/3) ... [2024-11-22 13:32:12,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79956d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:32:12, skipping insertion in model container [2024-11-22 13:32:12,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:32:11" (2/3) ... [2024-11-22 13:32:12,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79956d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:32:12, skipping insertion in model container [2024-11-22 13:32:12,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:32:12" (3/3) ... [2024-11-22 13:32:12,540 INFO L112 eAbstractionObserver]: Analyzing ICFG mix017.oepc.i [2024-11-22 13:32:12,552 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 13:32:12,552 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-22 13:32:12,552 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-22 13:32:12,593 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-22 13:32:12,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 114 flow [2024-11-22 13:32:12,640 INFO L124 PetriNetUnfolderBase]: 1/45 cut-off events. [2024-11-22 13:32:12,640 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 13:32:12,643 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 88 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. [2024-11-22 13:32:12,643 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 49 transitions, 114 flow [2024-11-22 13:32:12,645 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 45 transitions, 102 flow [2024-11-22 13:32:12,651 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 13:32:12,655 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;@4cf86c6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 13:32:12,655 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-22 13:32:12,658 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-22 13:32:12,658 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-22 13:32:12,658 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-22 13:32:12,658 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:12,659 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-22 13:32:12,659 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:12,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:12,662 INFO L85 PathProgramCache]: Analyzing trace with hash 12023700, now seen corresponding path program 1 times [2024-11-22 13:32:12,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:12,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768829914] [2024-11-22 13:32:12,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:32:12,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:12,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:32:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:12,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:12,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768829914] [2024-11-22 13:32:12,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768829914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:12,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:12,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-22 13:32:12,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823941177] [2024-11-22 13:32:12,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:12,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 13:32:12,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:13,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 13:32:13,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 13:32:13,016 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 49 [2024-11-22 13:32:13,018 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 45 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 13:32:13,018 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:13,018 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 49 [2024-11-22 13:32:13,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:13,639 INFO L124 PetriNetUnfolderBase]: 2495/4136 cut-off events. [2024-11-22 13:32:13,639 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2024-11-22 13:32:13,650 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7712 conditions, 4136 events. 2495/4136 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 253. Compared 28535 event pairs, 443 based on Foata normal form. 135/4200 useless extension candidates. Maximal degree in co-relation 7700. Up to 2779 conditions per place. [2024-11-22 13:32:13,665 INFO L140 encePairwiseOnDemand]: 45/49 looper letters, 37 selfloop transitions, 2 changer transitions 2/61 dead transitions. [2024-11-22 13:32:13,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 61 transitions, 225 flow [2024-11-22 13:32:13,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 13:32:13,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-22 13:32:13,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 116 transitions. [2024-11-22 13:32:13,675 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7891156462585034 [2024-11-22 13:32:13,676 INFO L175 Difference]: Start difference. First operand has 57 places, 45 transitions, 102 flow. Second operand 3 states and 116 transitions. [2024-11-22 13:32:13,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 61 transitions, 225 flow [2024-11-22 13:32:13,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 218 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-22 13:32:13,683 INFO L231 Difference]: Finished difference. Result has 54 places, 42 transitions, 96 flow [2024-11-22 13:32:13,686 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} [2024-11-22 13:32:13,689 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-22 13:32:13,690 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 42 transitions, 96 flow [2024-11-22 13:32:13,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 13:32:13,690 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:13,690 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:32:13,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 13:32:13,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:13,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:13,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1673571900, now seen corresponding path program 1 times [2024-11-22 13:32:13,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:13,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443482504] [2024-11-22 13:32:13,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:32:13,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:32:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:13,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:13,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443482504] [2024-11-22 13:32:13,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443482504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:13,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:13,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:32:13,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072203008] [2024-11-22 13:32:13,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:13,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:32:13,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:13,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:32:13,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:32:13,958 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-22 13:32:13,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 42 transitions, 96 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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) [2024-11-22 13:32:13,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:13,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-22 13:32:13,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:16,307 INFO L124 PetriNetUnfolderBase]: 13249/19196 cut-off events. [2024-11-22 13:32:16,307 INFO L125 PetriNetUnfolderBase]: For 918/918 co-relation queries the response was YES. [2024-11-22 13:32:16,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38182 conditions, 19196 events. 13249/19196 cut-off events. For 918/918 co-relation queries the response was YES. Maximal size of possible extension queue 972. Compared 128823 event pairs, 7720 based on Foata normal form. 0/18787 useless extension candidates. Maximal degree in co-relation 38172. Up to 11671 conditions per place. [2024-11-22 13:32:16,401 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 37 selfloop transitions, 5 changer transitions 58/113 dead transitions. [2024-11-22 13:32:16,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 113 transitions, 456 flow [2024-11-22 13:32:16,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:32:16,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 13:32:16,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 238 transitions. [2024-11-22 13:32:16,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2024-11-22 13:32:16,403 INFO L175 Difference]: Start difference. First operand has 54 places, 42 transitions, 96 flow. Second operand 8 states and 238 transitions. [2024-11-22 13:32:16,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 113 transitions, 456 flow [2024-11-22 13:32:16,405 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 113 transitions, 440 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-22 13:32:16,408 INFO L231 Difference]: Finished difference. Result has 63 places, 45 transitions, 147 flow [2024-11-22 13:32:16,408 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=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=147, PETRI_PLACES=63, PETRI_TRANSITIONS=45} [2024-11-22 13:32:16,409 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-22 13:32:16,409 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 45 transitions, 147 flow [2024-11-22 13:32:16,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 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) [2024-11-22 13:32:16,409 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:16,409 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:32:16,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 13:32:16,409 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:16,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:16,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1502900189, now seen corresponding path program 1 times [2024-11-22 13:32:16,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:16,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772595820] [2024-11-22 13:32:16,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:32:16,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:32:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:16,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:16,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772595820] [2024-11-22 13:32:16,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772595820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:16,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:16,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:32:16,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416257139] [2024-11-22 13:32:16,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:16,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:32:16,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:16,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:32:16,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:32:16,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-22 13:32:16,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 45 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-11-22 13:32:16,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:16,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-22 13:32:16,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:18,422 INFO L124 PetriNetUnfolderBase]: 10019/14530 cut-off events. [2024-11-22 13:32:18,422 INFO L125 PetriNetUnfolderBase]: For 14250/14253 co-relation queries the response was YES. [2024-11-22 13:32:18,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39463 conditions, 14530 events. 10019/14530 cut-off events. For 14250/14253 co-relation queries the response was YES. Maximal size of possible extension queue 714. Compared 92654 event pairs, 1683 based on Foata normal form. 390/14849 useless extension candidates. Maximal degree in co-relation 39448. Up to 9073 conditions per place. [2024-11-22 13:32:18,519 INFO L140 encePairwiseOnDemand]: 44/49 looper letters, 42 selfloop transitions, 3 changer transitions 51/109 dead transitions. [2024-11-22 13:32:18,519 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 109 transitions, 579 flow [2024-11-22 13:32:18,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:32:18,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 13:32:18,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 213 transitions. [2024-11-22 13:32:18,521 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6209912536443148 [2024-11-22 13:32:18,521 INFO L175 Difference]: Start difference. First operand has 63 places, 45 transitions, 147 flow. Second operand 7 states and 213 transitions. [2024-11-22 13:32:18,521 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 109 transitions, 579 flow [2024-11-22 13:32:18,822 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 109 transitions, 566 flow, removed 4 selfloop flow, removed 3 redundant places. [2024-11-22 13:32:18,824 INFO L231 Difference]: Finished difference. Result has 65 places, 45 transitions, 157 flow [2024-11-22 13:32:18,824 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=157, PETRI_PLACES=65, PETRI_TRANSITIONS=45} [2024-11-22 13:32:18,825 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2024-11-22 13:32:18,825 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 45 transitions, 157 flow [2024-11-22 13:32:18,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 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) [2024-11-22 13:32:18,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:18,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 13:32:18,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 13:32:18,826 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:18,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:18,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1094328144, now seen corresponding path program 1 times [2024-11-22 13:32:18,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:18,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066264424] [2024-11-22 13:32:18,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:32:18,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:32:18,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:18,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:18,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066264424] [2024-11-22 13:32:18,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066264424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:18,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:18,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 13:32:18,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894833370] [2024-11-22 13:32:18,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:18,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 13:32:18,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:18,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 13:32:18,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 13:32:18,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-22 13:32:18,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 45 transitions, 157 flow. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-11-22 13:32:18,931 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:18,931 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-22 13:32:18,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:21,108 INFO L124 PetriNetUnfolderBase]: 13591/20365 cut-off events. [2024-11-22 13:32:21,108 INFO L125 PetriNetUnfolderBase]: For 9627/9807 co-relation queries the response was YES. [2024-11-22 13:32:21,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46526 conditions, 20365 events. 13591/20365 cut-off events. For 9627/9807 co-relation queries the response was YES. Maximal size of possible extension queue 1171. Compared 143684 event pairs, 2484 based on Foata normal form. 681/20267 useless extension candidates. Maximal degree in co-relation 46507. Up to 9547 conditions per place. [2024-11-22 13:32:21,395 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 53 selfloop transitions, 6 changer transitions 0/77 dead transitions. [2024-11-22 13:32:21,399 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 77 transitions, 345 flow [2024-11-22 13:32:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 13:32:21,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-22 13:32:21,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 137 transitions. [2024-11-22 13:32:21,401 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6989795918367347 [2024-11-22 13:32:21,401 INFO L175 Difference]: Start difference. First operand has 65 places, 45 transitions, 157 flow. Second operand 4 states and 137 transitions. [2024-11-22 13:32:21,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 77 transitions, 345 flow [2024-11-22 13:32:21,697 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 331 flow, removed 4 selfloop flow, removed 6 redundant places. [2024-11-22 13:32:21,698 INFO L231 Difference]: Finished difference. Result has 60 places, 50 transitions, 189 flow [2024-11-22 13:32:21,699 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=189, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2024-11-22 13:32:21,701 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 3 predicate places. [2024-11-22 13:32:21,701 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 189 flow [2024-11-22 13:32:21,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 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) [2024-11-22 13:32:21,701 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:21,701 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] [2024-11-22 13:32:21,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 13:32:21,706 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:21,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:21,707 INFO L85 PathProgramCache]: Analyzing trace with hash -2057947707, now seen corresponding path program 1 times [2024-11-22 13:32:21,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:21,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792430796] [2024-11-22 13:32:21,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:32:21,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:32:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:22,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:22,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792430796] [2024-11-22 13:32:22,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792430796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:22,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:22,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 13:32:22,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549936269] [2024-11-22 13:32:22,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:22,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 13:32:22,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:22,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 13:32:22,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 13:32:22,380 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-22 13:32:22,380 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 189 flow. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-11-22 13:32:22,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:22,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-22 13:32:22,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:24,064 INFO L124 PetriNetUnfolderBase]: 11180/16762 cut-off events. [2024-11-22 13:32:24,064 INFO L125 PetriNetUnfolderBase]: For 5969/6083 co-relation queries the response was YES. [2024-11-22 13:32:24,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40643 conditions, 16762 events. 11180/16762 cut-off events. For 5969/6083 co-relation queries the response was YES. Maximal size of possible extension queue 877. Compared 113530 event pairs, 1467 based on Foata normal form. 602/16714 useless extension candidates. Maximal degree in co-relation 40626. Up to 5576 conditions per place. [2024-11-22 13:32:24,155 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 69 selfloop transitions, 10 changer transitions 0/97 dead transitions. [2024-11-22 13:32:24,155 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 97 transitions, 470 flow [2024-11-22 13:32:24,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 13:32:24,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-22 13:32:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 176 transitions. [2024-11-22 13:32:24,158 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7183673469387755 [2024-11-22 13:32:24,158 INFO L175 Difference]: Start difference. First operand has 60 places, 50 transitions, 189 flow. Second operand 5 states and 176 transitions. [2024-11-22 13:32:24,158 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 97 transitions, 470 flow [2024-11-22 13:32:24,161 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 97 transitions, 467 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-22 13:32:24,161 INFO L231 Difference]: Finished difference. Result has 65 places, 55 transitions, 254 flow [2024-11-22 13:32:24,162 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=254, PETRI_PLACES=65, PETRI_TRANSITIONS=55} [2024-11-22 13:32:24,162 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2024-11-22 13:32:24,162 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 55 transitions, 254 flow [2024-11-22 13:32:24,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 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) [2024-11-22 13:32:24,163 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:24,163 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] [2024-11-22 13:32:24,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 13:32:24,163 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:24,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:24,164 INFO L85 PathProgramCache]: Analyzing trace with hash -246178957, now seen corresponding path program 1 times [2024-11-22 13:32:24,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:24,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039413558] [2024-11-22 13:32:24,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:32:24,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:32:25,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:25,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:25,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039413558] [2024-11-22 13:32:25,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039413558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:25,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:25,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:32:25,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227583029] [2024-11-22 13:32:25,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:25,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 13:32:25,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:25,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 13:32:25,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-22 13:32:25,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 49 [2024-11-22 13:32:25,241 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 55 transitions, 254 flow. Second operand has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 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) [2024-11-22 13:32:25,241 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:25,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 49 [2024-11-22 13:32:25,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:29,260 INFO L124 PetriNetUnfolderBase]: 20706/32193 cut-off events. [2024-11-22 13:32:29,261 INFO L125 PetriNetUnfolderBase]: For 38688/44172 co-relation queries the response was YES. [2024-11-22 13:32:29,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91692 conditions, 32193 events. 20706/32193 cut-off events. For 38688/44172 co-relation queries the response was YES. Maximal size of possible extension queue 1717. Compared 254937 event pairs, 5597 based on Foata normal form. 609/30793 useless extension candidates. Maximal degree in co-relation 91672. Up to 12177 conditions per place. [2024-11-22 13:32:29,566 INFO L140 encePairwiseOnDemand]: 35/49 looper letters, 127 selfloop transitions, 32 changer transitions 12/194 dead transitions. [2024-11-22 13:32:29,566 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 194 transitions, 1085 flow [2024-11-22 13:32:29,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 13:32:29,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-22 13:32:29,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 410 transitions. [2024-11-22 13:32:29,575 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.597667638483965 [2024-11-22 13:32:29,576 INFO L175 Difference]: Start difference. First operand has 65 places, 55 transitions, 254 flow. Second operand 14 states and 410 transitions. [2024-11-22 13:32:29,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 194 transitions, 1085 flow [2024-11-22 13:32:29,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 194 transitions, 1070 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-22 13:32:29,587 INFO L231 Difference]: Finished difference. Result has 86 places, 82 transitions, 518 flow [2024-11-22 13:32:29,588 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=518, PETRI_PLACES=86, PETRI_TRANSITIONS=82} [2024-11-22 13:32:29,589 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 29 predicate places. [2024-11-22 13:32:29,589 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 82 transitions, 518 flow [2024-11-22 13:32:29,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 19.5) internal successors, (156), 8 states have internal predecessors, (156), 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) [2024-11-22 13:32:29,590 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:29,590 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] [2024-11-22 13:32:29,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 13:32:29,590 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:29,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:29,591 INFO L85 PathProgramCache]: Analyzing trace with hash 745626647, now seen corresponding path program 2 times [2024-11-22 13:32:29,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:29,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791257550] [2024-11-22 13:32:29,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 13:32:29,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:29,654 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:32:29,654 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:32:29,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:29,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:29,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791257550] [2024-11-22 13:32:29,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791257550] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:29,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:29,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 13:32:29,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148541736] [2024-11-22 13:32:29,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:29,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:32:29,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:29,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:32:29,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:32:29,853 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-22 13:32:29,854 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 82 transitions, 518 flow. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-22 13:32:29,854 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:29,854 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-22 13:32:29,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:33,584 INFO L124 PetriNetUnfolderBase]: 22487/33244 cut-off events. [2024-11-22 13:32:33,584 INFO L125 PetriNetUnfolderBase]: For 57973/60138 co-relation queries the response was YES. [2024-11-22 13:32:34,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107483 conditions, 33244 events. 22487/33244 cut-off events. For 57973/60138 co-relation queries the response was YES. Maximal size of possible extension queue 1337. Compared 230250 event pairs, 1780 based on Foata normal form. 1438/33840 useless extension candidates. Maximal degree in co-relation 107453. Up to 11270 conditions per place. [2024-11-22 13:32:34,163 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 118 selfloop transitions, 14 changer transitions 10/170 dead transitions. [2024-11-22 13:32:34,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 170 transitions, 1198 flow [2024-11-22 13:32:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 13:32:34,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-22 13:32:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 213 transitions. [2024-11-22 13:32:34,165 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7244897959183674 [2024-11-22 13:32:34,165 INFO L175 Difference]: Start difference. First operand has 86 places, 82 transitions, 518 flow. Second operand 6 states and 213 transitions. [2024-11-22 13:32:34,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 170 transitions, 1198 flow [2024-11-22 13:32:34,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 170 transitions, 1145 flow, removed 26 selfloop flow, removed 3 redundant places. [2024-11-22 13:32:34,199 INFO L231 Difference]: Finished difference. Result has 88 places, 83 transitions, 526 flow [2024-11-22 13:32:34,199 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=465, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=526, PETRI_PLACES=88, PETRI_TRANSITIONS=83} [2024-11-22 13:32:34,200 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 31 predicate places. [2024-11-22 13:32:34,200 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 83 transitions, 526 flow [2024-11-22 13:32:34,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 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) [2024-11-22 13:32:34,200 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:34,200 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] [2024-11-22 13:32:34,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 13:32:34,201 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:34,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:34,201 INFO L85 PathProgramCache]: Analyzing trace with hash -713801392, now seen corresponding path program 1 times [2024-11-22 13:32:34,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:34,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073130143] [2024-11-22 13:32:34,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:32:34,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:32:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:35,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:35,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073130143] [2024-11-22 13:32:35,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073130143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:35,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:35,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 13:32:35,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53745790] [2024-11-22 13:32:35,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:35,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 13:32:35,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:35,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 13:32:35,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 13:32:35,226 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-22 13:32:35,226 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 83 transitions, 526 flow. Second operand has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 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) [2024-11-22 13:32:35,226 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:35,226 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-22 13:32:35,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:39,288 INFO L124 PetriNetUnfolderBase]: 17013/29197 cut-off events. [2024-11-22 13:32:39,289 INFO L125 PetriNetUnfolderBase]: For 66420/75957 co-relation queries the response was YES. [2024-11-22 13:32:39,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94459 conditions, 29197 events. 17013/29197 cut-off events. For 66420/75957 co-relation queries the response was YES. Maximal size of possible extension queue 1997. Compared 263997 event pairs, 5372 based on Foata normal form. 1193/27479 useless extension candidates. Maximal degree in co-relation 94428. Up to 9325 conditions per place. [2024-11-22 13:32:39,612 INFO L140 encePairwiseOnDemand]: 39/49 looper letters, 80 selfloop transitions, 22 changer transitions 26/171 dead transitions. [2024-11-22 13:32:39,616 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 171 transitions, 1187 flow [2024-11-22 13:32:39,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 13:32:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 13:32:39,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 289 transitions. [2024-11-22 13:32:39,619 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.655328798185941 [2024-11-22 13:32:39,623 INFO L175 Difference]: Start difference. First operand has 88 places, 83 transitions, 526 flow. Second operand 9 states and 289 transitions. [2024-11-22 13:32:39,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 171 transitions, 1187 flow [2024-11-22 13:32:40,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 171 transitions, 1140 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-22 13:32:40,078 INFO L231 Difference]: Finished difference. Result has 95 places, 98 transitions, 663 flow [2024-11-22 13:32:40,078 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=663, PETRI_PLACES=95, PETRI_TRANSITIONS=98} [2024-11-22 13:32:40,078 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 38 predicate places. [2024-11-22 13:32:40,078 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 98 transitions, 663 flow [2024-11-22 13:32:40,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 23.11111111111111) internal successors, (208), 9 states have internal predecessors, (208), 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) [2024-11-22 13:32:40,079 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:40,079 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] [2024-11-22 13:32:40,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 13:32:40,079 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:40,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:40,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1086634778, now seen corresponding path program 2 times [2024-11-22 13:32:40,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:40,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112185235] [2024-11-22 13:32:40,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 13:32:40,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:40,114 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:32:40,117 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:32:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:40,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:40,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112185235] [2024-11-22 13:32:40,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112185235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:40,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:40,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:32:40,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84500806] [2024-11-22 13:32:40,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:40,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:32:40,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:40,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:32:40,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:32:40,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-22 13:32:40,474 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 98 transitions, 663 flow. Second operand has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-11-22 13:32:40,474 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:40,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-22 13:32:40,474 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:46,711 INFO L124 PetriNetUnfolderBase]: 35671/56474 cut-off events. [2024-11-22 13:32:46,712 INFO L125 PetriNetUnfolderBase]: For 181255/194075 co-relation queries the response was YES. [2024-11-22 13:32:47,146 INFO L83 FinitePrefix]: Finished finitePrefix Result has 201551 conditions, 56474 events. 35671/56474 cut-off events. For 181255/194075 co-relation queries the response was YES. Maximal size of possible extension queue 3958. Compared 505595 event pairs, 10912 based on Foata normal form. 1530/51913 useless extension candidates. Maximal degree in co-relation 201516. Up to 22005 conditions per place. [2024-11-22 13:32:47,294 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 160 selfloop transitions, 16 changer transitions 34/237 dead transitions. [2024-11-22 13:32:47,295 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 237 transitions, 2011 flow [2024-11-22 13:32:47,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:32:47,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 13:32:47,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 246 transitions. [2024-11-22 13:32:47,297 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6275510204081632 [2024-11-22 13:32:47,297 INFO L175 Difference]: Start difference. First operand has 95 places, 98 transitions, 663 flow. Second operand 8 states and 246 transitions. [2024-11-22 13:32:47,297 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 237 transitions, 2011 flow [2024-11-22 13:32:48,402 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 237 transitions, 1944 flow, removed 33 selfloop flow, removed 5 redundant places. [2024-11-22 13:32:48,404 INFO L231 Difference]: Finished difference. Result has 97 places, 105 transitions, 739 flow [2024-11-22 13:32:48,404 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=739, PETRI_PLACES=97, PETRI_TRANSITIONS=105} [2024-11-22 13:32:48,404 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2024-11-22 13:32:48,405 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 105 transitions, 739 flow [2024-11-22 13:32:48,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.285714285714285) internal successors, (135), 7 states have internal predecessors, (135), 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) [2024-11-22 13:32:48,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:32:48,405 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] [2024-11-22 13:32:48,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 13:32:48,405 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:32:48,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:32:48,406 INFO L85 PathProgramCache]: Analyzing trace with hash -13104314, now seen corresponding path program 3 times [2024-11-22 13:32:48,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:32:48,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617113448] [2024-11-22 13:32:48,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 13:32:48,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:32:48,473 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 13:32:48,474 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:32:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:32:48,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:32:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617113448] [2024-11-22 13:32:48,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617113448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:32:48,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:32:48,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:32:48,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067730916] [2024-11-22 13:32:48,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:32:48,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:32:48,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:32:48,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:32:48,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:32:48,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-22 13:32:48,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 105 transitions, 739 flow. Second operand has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 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) [2024-11-22 13:32:48,665 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:32:48,665 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-22 13:32:48,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:32:56,900 INFO L124 PetriNetUnfolderBase]: 50522/73645 cut-off events. [2024-11-22 13:32:56,901 INFO L125 PetriNetUnfolderBase]: For 199461/207734 co-relation queries the response was YES. [2024-11-22 13:32:57,428 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267780 conditions, 73645 events. 50522/73645 cut-off events. For 199461/207734 co-relation queries the response was YES. Maximal size of possible extension queue 3579. Compared 564462 event pairs, 3428 based on Foata normal form. 2862/74847 useless extension candidates. Maximal degree in co-relation 267744. Up to 28056 conditions per place. [2024-11-22 13:32:57,510 INFO L140 encePairwiseOnDemand]: 42/49 looper letters, 123 selfloop transitions, 18 changer transitions 55/216 dead transitions. [2024-11-22 13:32:57,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 216 transitions, 1773 flow [2024-11-22 13:32:57,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 13:32:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-22 13:32:57,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 228 transitions. [2024-11-22 13:32:57,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6647230320699709 [2024-11-22 13:32:57,512 INFO L175 Difference]: Start difference. First operand has 97 places, 105 transitions, 739 flow. Second operand 7 states and 228 transitions. [2024-11-22 13:32:57,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 216 transitions, 1773 flow [2024-11-22 13:33:00,203 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 216 transitions, 1734 flow, removed 10 selfloop flow, removed 4 redundant places. [2024-11-22 13:33:00,205 INFO L231 Difference]: Finished difference. Result has 99 places, 80 transitions, 552 flow [2024-11-22 13:33:00,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=678, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=552, PETRI_PLACES=99, PETRI_TRANSITIONS=80} [2024-11-22 13:33:00,206 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 42 predicate places. [2024-11-22 13:33:00,206 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 80 transitions, 552 flow [2024-11-22 13:33:00,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.0) internal successors, (154), 7 states have internal predecessors, (154), 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) [2024-11-22 13:33:00,206 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:00,206 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] [2024-11-22 13:33:00,206 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 13:33:00,207 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:33:00,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:00,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1685479483, now seen corresponding path program 1 times [2024-11-22 13:33:00,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:00,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143550066] [2024-11-22 13:33:00,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 13:33:00,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 13:33:00,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:00,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:00,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143550066] [2024-11-22 13:33:00,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143550066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:00,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:00,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-22 13:33:00,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359238492] [2024-11-22 13:33:00,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:00,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 13:33:00,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:00,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 13:33:00,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-22 13:33:00,461 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 49 [2024-11-22 13:33:00,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 80 transitions, 552 flow. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 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) [2024-11-22 13:33:00,462 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:00,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 49 [2024-11-22 13:33:00,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:33:03,067 INFO L124 PetriNetUnfolderBase]: 15004/24754 cut-off events. [2024-11-22 13:33:03,067 INFO L125 PetriNetUnfolderBase]: For 101581/109435 co-relation queries the response was YES. [2024-11-22 13:33:03,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89669 conditions, 24754 events. 15004/24754 cut-off events. For 101581/109435 co-relation queries the response was YES. Maximal size of possible extension queue 2009. Compared 211916 event pairs, 2427 based on Foata normal form. 474/22497 useless extension candidates. Maximal degree in co-relation 89633. Up to 9418 conditions per place. [2024-11-22 13:33:03,290 INFO L140 encePairwiseOnDemand]: 40/49 looper letters, 86 selfloop transitions, 9 changer transitions 36/160 dead transitions. [2024-11-22 13:33:03,291 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 160 transitions, 1246 flow [2024-11-22 13:33:03,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 13:33:03,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-22 13:33:03,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 217 transitions. [2024-11-22 13:33:03,293 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5535714285714286 [2024-11-22 13:33:03,293 INFO L175 Difference]: Start difference. First operand has 99 places, 80 transitions, 552 flow. Second operand 8 states and 217 transitions. [2024-11-22 13:33:03,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 160 transitions, 1246 flow [2024-11-22 13:33:03,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 160 transitions, 1128 flow, removed 43 selfloop flow, removed 10 redundant places. [2024-11-22 13:33:03,767 INFO L231 Difference]: Finished difference. Result has 97 places, 81 transitions, 503 flow [2024-11-22 13:33:03,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=503, PETRI_PLACES=97, PETRI_TRANSITIONS=81} [2024-11-22 13:33:03,768 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2024-11-22 13:33:03,768 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 81 transitions, 503 flow [2024-11-22 13:33:03,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 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) [2024-11-22 13:33:03,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:03,769 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] [2024-11-22 13:33:03,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 13:33:03,769 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:33:03,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:03,769 INFO L85 PathProgramCache]: Analyzing trace with hash -31532281, now seen corresponding path program 2 times [2024-11-22 13:33:03,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:03,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660454305] [2024-11-22 13:33:03,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 13:33:03,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:03,805 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-22 13:33:03,805 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:33:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:05,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:05,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660454305] [2024-11-22 13:33:05,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660454305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:05,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:05,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 13:33:05,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342553256] [2024-11-22 13:33:05,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:05,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 13:33:05,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:05,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 13:33:05,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-22 13:33:05,049 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 49 [2024-11-22 13:33:05,049 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 81 transitions, 503 flow. Second operand has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 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) [2024-11-22 13:33:05,049 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:05,049 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 49 [2024-11-22 13:33:05,049 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-22 13:33:07,606 INFO L124 PetriNetUnfolderBase]: 11565/20709 cut-off events. [2024-11-22 13:33:07,607 INFO L125 PetriNetUnfolderBase]: For 51882/59789 co-relation queries the response was YES. [2024-11-22 13:33:07,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65395 conditions, 20709 events. 11565/20709 cut-off events. For 51882/59789 co-relation queries the response was YES. Maximal size of possible extension queue 1730. Compared 192097 event pairs, 3094 based on Foata normal form. 859/19156 useless extension candidates. Maximal degree in co-relation 65361. Up to 6602 conditions per place. [2024-11-22 13:33:07,795 INFO L140 encePairwiseOnDemand]: 41/49 looper letters, 66 selfloop transitions, 10 changer transitions 16/133 dead transitions. [2024-11-22 13:33:07,795 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 133 transitions, 873 flow [2024-11-22 13:33:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 13:33:07,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-22 13:33:07,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 266 transitions. [2024-11-22 13:33:07,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6031746031746031 [2024-11-22 13:33:07,797 INFO L175 Difference]: Start difference. First operand has 97 places, 81 transitions, 503 flow. Second operand 9 states and 266 transitions. [2024-11-22 13:33:07,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 133 transitions, 873 flow [2024-11-22 13:33:08,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 133 transitions, 867 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-22 13:33:08,277 INFO L231 Difference]: Finished difference. Result has 105 places, 82 transitions, 540 flow [2024-11-22 13:33:08,278 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=49, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=540, PETRI_PLACES=105, PETRI_TRANSITIONS=82} [2024-11-22 13:33:08,278 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 48 predicate places. [2024-11-22 13:33:08,278 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 82 transitions, 540 flow [2024-11-22 13:33:08,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.0) internal successors, (230), 10 states have internal predecessors, (230), 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) [2024-11-22 13:33:08,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-22 13:33:08,279 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] [2024-11-22 13:33:08,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 13:33:08,279 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-22 13:33:08,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 13:33:08,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1021104187, now seen corresponding path program 3 times [2024-11-22 13:33:08,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 13:33:08,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165667533] [2024-11-22 13:33:08,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-22 13:33:08,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 13:33:08,296 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-22 13:33:08,296 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 13:33:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 13:33:08,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 13:33:08,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165667533] [2024-11-22 13:33:08,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165667533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 13:33:08,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 13:33:08,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 13:33:08,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861423743] [2024-11-22 13:33:08,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 13:33:08,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 13:33:08,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 13:33:08,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 13:33:08,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 13:33:08,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 49 [2024-11-22 13:33:08,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 82 transitions, 540 flow. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-11-22 13:33:08,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-22 13:33:08,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 49 [2024-11-22 13:33:08,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand